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Genetic (CO)variances between milk yield and growth traits in a multibreed population in the tropical regions of Mexico



Genetic (CO)variances between milk yield and growth traits in a multibreed population in the tropical regions of Mexico



Proceedings of the 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, Minas Gerais, Brazil, 13-18 August, 2006: 16-03



The objective of this study was to estimate genetic parameters for milk yield (MY), birth weight (BW) and weights adjusted to 205 and 365 days of age (P205 and P365, respectively) and to evaluate the genetic relationship between first lactation milk yield (MY1) and P205 using restricted maximum likelihood methodology. Estimates of direct heritability were 0.12+or-0.04, 0.40+or-0.09, 0.28+or-0.05 and 0.25+or-0.05 for MY, BW, P205 and P365, respectively. Repeatability for MY was 0.34+or-0.02.

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Accession: 012791584

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