Joint estimation of (co) variance components and breeding values for mean and dispersion of days from calving to first service in Holstein cow
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DOI: 10.1071/an15643
Abstract: The present study explored the possibility of selection for uniformity of days from calving to first service (DFS) in dairy cattle. A double hierarchical generalised linear model with an iterative reweighted least-squares algorithm was used… read more here.
Keywords: mean dispersion; first service; dispersion; dfs ... See more keywords
Evidence of negative relationship between female fertility and feed efficiency in Nellore cattle.
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DOI: 10.1093/jas/sky276
Abstract: The objective of this study was to evaluate phenotypic and genetic relationships between fertility traits and feed efficiency in male and female Nellore cattle. Data from 320 females born between 2004 and 2011 were used… read more here.
Keywords: fat thickness; fertility; rfi; days calving ... See more keywords