Random regression models using  different functions to model test-day milk yield of Brazilian Holstein cows.

AB, Bignardi; Faro L, El; Júnior RA, Torres; VL, Cardoso; PF, Machado; LG, Albuquerque

doi:10.4238/2011.october.31.4

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Random regression models using different functions to model test-day milk yield of Brazilian Holstein cows.

Shared by NobleBlocks on Oct 31, 2011 • 12:00 AM UTC

Authors:

Bignardi AB

El Faro L

Torres Júnior RA

Abstract

We analyzed 152,145 test-day records from 7317 first lactations of Holstein cows recorded from 1995 to 2003. Our objective was to model variations in test-day milk yield during the first lactation of Holstein cows by random regression model (RRM), using various functions in order to obtain adequ...

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