INVESTIGADORES
LABAQUE Maria Carla
artículos
Título:
Ontogeny of Cloacal Gland in Male Japanese Quail Classified in a T-Maze
Autor/es:
LABAQUE M. C.,; SATTERLEE D.G.; GUZMAN, D. A.; MARIN R.H.
Revista:
POULTRY SCIENCE
Editorial:
POULTRY SCIENCE ASSOC INC
Referencias:
Año: 2007 vol. 86 p. 2013 - 2019
ISSN:
0032-5791
Resumen:
ABSTRACT Broiler chicks that traverse a T-maze
quickly to reinstate contact with their companions (HP,
high performers) are known to grow faster, are more
social, and have a reduced plasma corticosterone response
to acute stress than slower chicks (LP, low performers).
High-performing quail from a line selected for
reduced rather than exaggerated (high-stress) adrenocortical
stress responsiveness also show enhanced female
reproductive performance when compared with LP
high-stress quail. Herein, time courses of male sexual
development were evaluated in genetically unremarkable
quail that were categorized at 2 d of age as HP or LP in
the T-maze. Body weight, cloacal gland volume (CVOL),
proportion of individuals that produced cloacal gland
foam, intensity of foam production, and CVOL relative
to BW (RCVOL) were determined weekly from 4 to 10
wk of age, and again at 22 wk, along with absolute and
BW-adjusted testes weight. Although CVOL and RCVOL
were initially similar in both T-maze groups, both variables
were greater (P < 0.05) in HP than in LP quail
between 6 and 10 wk of age. High-performing birds also
showed a trend (P < 0.1) of greater cloacal gland foam
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
between 6 and 10 wk of age. High-performing birds also
showed a trend (P < 0.1) of greater cloacal gland foam
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
between 6 and 10 wk of age. High-performing birds also
showed a trend (P < 0.1) of greater cloacal gland foam
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
between 6 and 10 wk of age. High-performing birds also
showed a trend (P < 0.1) of greater cloacal gland foam
than their LP counterparts from 5 to 7 wk. From 8 wk
on, all birds were in foam production. Intensity of foam
production results generally mimicked those found for
CVOL and RCVOL. Body weights were higher (P < 0.05)
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty
in male quail, although the enhanced reproductive development
of HP males does not remain extant in aged
adults.
in HP than LP quail from 5 to 7 wk. No T-maze group
differences were found in any of the variables at 22 wk
of age. The results suggest that rapid negotiation of the
T-maze is associated with accelerated growth and puberty