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Genetic and non-genetic factors affecting post-weaning survivability in goats

Published online by Cambridge University Press:  02 September 2010

D. K. Singh ,
C. S. P. Singh  and
H. R. Mishra
D. K. Singh
Affiliation:
Faculty of Veterinary Science and Animal Husbandry, Birsa Agricultural University, Ranchi (Bihar) 834007, India
C. S. P. Singh
Affiliation:
Faculty of Veterinary Science and Animal Husbandry, Birsa Agricultural University, Ranchi (Bihar) 834007, India
H. R. Mishra
Affiliation:
Faculty of Veterinary Science and Animal Husbandry, Birsa Agricultural University, Ranchi (Bihar) 834007, India
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Abstract

Genetic and non-genetic factors affecting survival during the post-weaning period from 3 to 12 months of age were assessed in 823 kids (217 Black Bengal, 410 Jamunapari × Black Bengal and 196 Beetal × Black Bengal) born during 1981-86. The overall survival rates during 3 to 6 and 6 to 12 months of age were 79·22 (s.e. 4·06) and 82·02 (s.e. 5·49)% respectively. Variation in survival rate during 3 to 6 months of age was significant due to season of their birth (P < 0·01) and birth weight (P < 0·05). Survival rate during 6 to 12 months of age varied due to genetic group (P < 0·01), sex (P < 0·05) and birth weight (P < 0·05). Type of birth (litter size), dam's weight at kidding and filial generation had no significant effect on survival rate during the post-weaning period. Birth weight of kids had a positive linear relationship with their survivability during post-weaning period. Summer-born kids had significantly lower survival rates from 3 to 6 months of age compared with those born in the winter and monsoon periods. Heritability estimates for survival rates during the post-weaning period were not significantly different from zero.

Keywords

birth weightgenetic factorsgoat breedskids
Type
Research Article
Information
Animal Production , Volume 53 , Issue 2 , October 1991 , pp. 199 - 202
Copyright
Copyright © British Society of Animal Science 1991

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