TY - JOUR
T1 - Non-genetic and genetic effects related to birth and weaning weights of crossbred dairy goats
AU - Vázquez-Armijo, J. F.
AU - Salvador-Cáceres, A.
AU - Lopez-Villalobos, N.
AU - Herrera-Ojeda, J. B.
AU - García-Medina, A.
AU - Parra-Bracamonte, G. M.
N1 - Publisher Copyright:
© 2021 Polish Academy of Science. All rights reserved.
PY - 2021
Y1 - 2021
N2 - The objectives of this study were to assess the effect of some non-genetic factors, breed and heterosis on birth weight and weaning weight in crossbred dairy kids, and to estimate genetic parameters of these traits in a multi-breed dairy goat farm. Non-genetic analysis revealed that sex, year and season of birth and litter size are important factors that affect birth and weaning weights. Estimates of heritabilities for direct genetic effects were moderate at birth and weaning (0.25 ± 0.06 and 0.24 ± 0.10, respectively). Heritability of maternal genetic effect for birth weight was 0.26 ± 0.03. The bivariate analysis also revealed that permanent maternal effects are significant for birth and weaning weights indicating that this component should be considered in management strategies. These results highlight the importance of considering non-genetic factors to design management strategies in combination with genetic selection strategies to improve the future performance of replacement of does.
AB - The objectives of this study were to assess the effect of some non-genetic factors, breed and heterosis on birth weight and weaning weight in crossbred dairy kids, and to estimate genetic parameters of these traits in a multi-breed dairy goat farm. Non-genetic analysis revealed that sex, year and season of birth and litter size are important factors that affect birth and weaning weights. Estimates of heritabilities for direct genetic effects were moderate at birth and weaning (0.25 ± 0.06 and 0.24 ± 0.10, respectively). Heritability of maternal genetic effect for birth weight was 0.26 ± 0.03. The bivariate analysis also revealed that permanent maternal effects are significant for birth and weaning weights indicating that this component should be considered in management strategies. These results highlight the importance of considering non-genetic factors to design management strategies in combination with genetic selection strategies to improve the future performance of replacement of does.
KW - Genetic parameters
KW - Heritability
KW - Heterosis
KW - Litter size
KW - Live weight traits
UR - http://www.scopus.com/inward/record.url?scp=85120382775&partnerID=8YFLogxK
U2 - 10.22358/jafs/138612/2021
DO - 10.22358/jafs/138612/2021
M3 - Artículo
AN - SCOPUS:85120382775
SN - 1230-1388
VL - 30
SP - 165
EP - 172
JO - Journal of Animal and Feed Sciences
JF - Journal of Animal and Feed Sciences
IS - 2
ER -