Relationship between lactation curve function and phenotypic variance in random regression Test Day models

Department of Animal Sciences, Università degli Studi di Sassari, Sassari, Sardinia, Italy
Italian Journal of Animal Science 01/2010; 4(2s). DOI: 10.4081/ijas.2005.2s.19
Source: DOAJ


In Random Regression models (RRM), the most updated version of Test Day (TD) models, the lactation curve is split into a fixed average curve and a random animal specific part (deviation from the average curve) (Schaeffer, 2004). The variance component of the RR coefficients determines the (co) variance function of each pair of days in milk (DIM) (Pool and Meuwissen, 2000).

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Available from: Nicola Macciotta, Dec 30, 2014
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