Lactation is defined as the combined processes of synthesis, secretion, and excretion of
milk, starting at calving and continuing until natural or induced drying off in the lactating …

This study was conducted to (1) estimate Wood's incomplete gamma function parameters (a,
b and c) for individual registered Tunisian Holsteins in the 3 first lactations;(2) estimate …

Bayesian and average information restricted maximum likelihood (AI-REML) approaches
were used to estimate variance components and genetic parameters of Wood's lactation …

Background The modelling of lactation curve provides guidelines in formulating farm
managerial practices in dairy cows. The aim of the present study was to determine the …

ABSTRACT Standard lactations (305 days [d]) of Brown Swiss (BS, n= 54,985), Simmental
(SM, n= 114,189) and Holstein (HO, n= 137,703) breeds of cow were analyzed, and their …

This study compared six models, namely the Gaines, Sikka, Nelder, Wood, Dhanoa and
Hayashi models, for the estimation of 305 days milk yield in Chinese Holstein cattle. We …

Simple Summary The high costs of genoty** normally compel researchers to work with
reduced sample sizes. Contextually, population observations may no longer compensate for …

In order to describe the lactation curves of milk yield (MY) and composition, six non-linear
mathematical equations (Wood, Dhanoa, Sikka, Nelder, Hayashi and Dijkstra) were used …

The lactation curve is a graphical representation of the milk yield from an animal throughout
a defined time period. The shape of the lactation curve provides relevance information about …

Background Lactation curve patterns are currently integrated in dairy cow's management
software. Lactation curve modeling is useful for monitoring individual yields for diet planning …