Corpus luteum vascularization during the maternal recognition of pregnancy in llamas (Lama glama)

GALLELLI, M.F.; BIANCHI, C.P.; ZAMPINI, E.; TRASORRAS, V.L.; GAMBAROTTA, M; MIRAGAYA, M.H.

REPRODUCTION IN DOMESTIC ANIMALS (1990)

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2020 vol. 55 p. 74 - 80

0936-6768

The aim of this study was to characterize corpus luteum vascularization and its association with plasma progesterone concentration in early stages of pregnancy, when maternal recognition of pregnancy is expected to occur. In all animals both plasma progesterone concentration and corpus luteum vascularization increased from day 6 to day 8 post-mating and afterwards in non-pregnant llamas they started to decrease to reach basal levels around Days 12 to 14 post-mating; while in pregnant animals both variables remained elevated until the end of the study. A lineal positive relationship between corpus luteum vascularization and plasma progesterone concentration was observed in pregnant (r2 = 0.46, P