IGEVET 21075
INSTITUTO DE GENETICA VETERINARIA "ING. FERNANDO NOEL DULOUT"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Fetal programming on dairy cows: Effect of dam´s parity and days in milk at conception on first lactation milk yield in dairy cows
Autor/es:
CHIARLE A; R. REARTE; S. CORVA; R L DE LA SOTA; M. GIULIODORI; A. E. RELLING,
Lugar:
Orlando
Reunión:
Congreso; Joint Annual Meeting; 2015
Institución organizadora:
American Society of animal sciences y American society of dairy science
Resumen:
Fetal programming is defined as nutritional and/or endocrine changes that happen in the cow during gestation that may change expression of some genes on the adult life of the progeny. These changes may have an impact on the progeny´s performance. Therefore, the objective of the current study was to evaluate the effect of dam´s parity (1 through 8) and days in milk (DIM) at conception on the daughter`s first lactation milk yield accumulated up to 150 days (MY150, kg). Data from dairy cows (n= 159.886) and their daughters (n= 201.547) from 1131 Argentinean dairy herds from ARPECOL (La Plata, BA, Argentina) were included in the study. Data was analyzed as completely randomized block design with a mixed model (SAS 9.3). The model included the fixed effects of parity (1 through 8) and DIM at conception, divided into quartiles (1st: >77d, 2nd: 77-115d; 3rd: 115-190d; 4th:
