Removal of within-cow differences between morning and evening milk yields.

doi:10.3168/jds.S0022-0302(94)77208-8

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Article

Removal of within-cow differences between morning and evening milk yields.

Journal of dairy science - 1 Sept 1994

Palmer R W, Jensen E L, Hardie A R

Abstract excerpt

Methods were explored for removing within-cow differences between a.m. and p.m. milk yields to allow direct comparison of consecutive milk yields. Daily a.m. to p.m. ratios of milk yield were studied for 504 lactations of 310 Holstein cows. Ratios varied within lactations and among cows. When the...

Topics

Animals
Cattle
Circadian Rhythm
Female
Genetic Variation
Lactation
Mathematics
Models, Biological

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