A comparison of two mathematical model of the lactation curve in dairy cattle.

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Comparison of Different Lactation Curve Models to Describe Lactation Curve in Moroccan Holstein-Friesian Dairy Cows

In this study, the incomplete gamma function, an exponential function, a mixed-log function and a polynomial function were evaluated to describe the lactation curve in Moroccan Holstein-Friesian dairy cows. Data from 1990 to 1999, comprising 77130 monthly milk yields of 6029 dairy cows in 280 dairy herds, were used. Edits were carried out by considering the lactation length (5 d and

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ژورنال

عنوان ژورنال: Japanese Journal of Biometrics

سال: 1992

ISSN: 2185-6494,0918-4430

DOI: 10.5691/jjb.13.15