Author:
CHAUDHARY RAJNI,SAILO LALRENGPUII,SINGH AKANSHA,KARTHIKEYAN A,MEHROTRA ARNAV,MONDAL S K,SAHOO N R,KUMAR AMIT
Abstract
The direct heritability estimates for piglet weights in pre and post weaning stages were moderate and improvement through mass selection is plausible. In the pre-weaning stage, the piglets had maximum genetic potential at birth (BW) to be exploited through direct selection. The 3 random effects, namely direct additive, maternal additive and litter permanent environmental effects had significant roles during different phases of pre-weaning growth and all must be included in the model used for formulating a breeding program. For post-weaning traits, the direct additive and permanent litter effects were the predominant factors governing the variability. The non-significance of postweaning maternal influence was as per expectation because the piglets moved away from maternal care after 8thweekof age.
Publisher
Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture
Subject
General Veterinary,Animal Science and Zoology
Reference17 articles.
1. Alves K, Schenkel F S, Brito, L F and Robinson J A B. 2018. Estimation of direct and maternal genetic parameters for individual birth weight, weaning weight and probe weight in Yorkshire and Landrace pigs. Journal of Animal Science 96(7): 2567–78.
2. Banik S, Naskar S, Pankaj P K, Pourouchottamane R, Barman K, Sahoo N R and Tamuli M K. 2013. Construction of growth band for early selection of indigenous pigs in India. Applied Biological Research 15(1): 73–77.
3. Baxter E M, Rutherford K M D, d’Eath R B, Arnott G, Turner S P, Sandøe P, Moustsen V A, Thorup F, Edwards S A and Lawrence A B. 2013. The welfare implications of large litter size in the domestic pig II: management factors. Animal Welfare 22(2): 219–38.
4. Canario L, Lundgren H, Haandlykken M and Rydhmer L. 2010. Genetics of growth in piglets and the association with homogeneity of body weight within litters. Journal of Animal Science 88(4): 1240–47.
5. Chimonyo M, Dzama K and Bhebhe E. 2006. Genetic determination of individual birth weight, litter weight and litter size in Mukota pigs. Livestock Science 105(1–3): 69–77.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献