Genetic and Non-genetic Factors Affecting Gestation Length and Calve Birth Weight of Sahiwal-Friesian Crossbred Groups
Autor: | J. M. Panandam, Muhammad Anisuzzaman Talukder |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | The Agriculturists. :1-8 |
ISSN: | 2304-7321 1729-5211 |
DOI: | 10.3329/agric.v6i1.5208 |
Popis: | This study focused on the dairy unit at the Ladang Pusat Ternakan Haiwan Ayer Hitam in Johor, Malaysia. Eight crossbreed groups namely M50, M50-1, M50-2, M50-3, M56, M63, M75 and M75-1 were evaluated. Retrospective data on gestation length and calf birth weight were extracted for evaluation of 1346 animals and were analyzed between 1981 and 2001. Effects of breed group, parity, calf sex and age at calving were non significant for GL. Year of birth was only significant (P |
Databáze: | OpenAIRE |
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