Non-genetic factors affecting birth weight in yak

Among the components of maternal influence on birth weight, differences attributable to parity, gestation length and body weight of dams were considered highly significant in yaks. Relationship between calves' birth weight and dams' body weight suggested selection of female based on body w...

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Bibliographic Details
Published in:Indian journal of animal sciences 2009-08, Vol.79 (8)
Main Authors: Biswas,T. K, Bandyopadhyay, S, Ramesha K.P, Ghosh, M. K, Jayakumar S, G. Krishnan
Format: Article
Language:English
Subjects:
BIRTH WEIGHT
ESTACIONES DEL ANO
GESTATION PERIOD
http://www.fao.org/aos/agrovoc#c_16115
http://www.fao.org/aos/agrovoc#c_3252
http://www.fao.org/aos/agrovoc#c_6911
http://www.fao.org/aos/agrovoc#c_7010
http://www.fao.org/aos/agrovoc#c_8477
PERIODE DE GESTATION
PERIODO DE GESTACION
PESO AL NACIMIENTO
POIDS A LA NAISSANCE
SAISON
SEASONS
SEX
SEXE
SEXO
YACK
YAK
YAKS
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Summary:Among the components of maternal influence on birth weight, differences attributable to parity, gestation length and body weight of dams were considered highly significant in yaks. Relationship between calves' birth weight and dams' body weight suggested selection of female based on body weight may alter the average birth weight of the herd. Sex of calves, season of birth and the change in nutritional regime over the year were also found to affect the birth weight significantly. On average, male calves were 1.0 kg heavier than the female ones (14.20 vs 13.20). Calves which born in the early autumn season were comparatively lighter than others.
ISSN:0367-8318