Genetic and phenotypic trend for growth performance in Landlly pigs

Autor: B C NAHA, G K GAUR, B L SAINI, N R SAHOO, P BORO
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Indian Journal of Animal Sciences, Vol 90, Iss 2 (2020)
Druh dokumentu: article
ISSN: 0367-8318
2394-3327
DOI: 10.56093/ijans.v90i2.98829
Popis: This investigation aimed to evaluate the genetic parameters and trend for growth performance in Landlly pigs. Records of 2,118 piglets, born in 5 generations from 2013 to 2017 were analyzed for body weight at birth and subsequently at 1 week interval up to 8 week. There was a steady increase in body weight over the age from birth (0.96 kg) to 8 week (12.17 kg). The heritability estimate was low (0.112 to 0.129) for body weight at birth and 8 weeks, medium (0.156 to 0.290) for weight at 3 and 32 week and high (0.313 to 0.851) for other weights. Genetic trend was low and ranged from 0.001 (birth weight) to 0.041 kg (weight at 4 week). Phenotypic trend was positive, significant and higher than genetic trend (0.26 kg at birth to 3.36 kg at 8 week). The results showed that growth performance of Landlly pigs at this herd is improving in desired direction.
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