In the present study, records on 115,291 heifers distributed in 113 herds were used to
investigate the association between age at the first calving (AFC) and lactation performance …

Incineration is considered as an efficient approach in dealing with the increasing demand for
municipal and industrial solid waste treatment, especially in areas without sufficient land …

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 …

Phenotypic variation in milk production traits has been described over the course of a
lactation as well as between different parities. The objective of this study was to investigate …

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 …

Abstract The Siboney de Cuba cattle breed (5/8 Holstein x 3/8 Cuban Zebu) is the result of
more than 50 years of work in crossbreeding and genetic improvement aimed at obtaining …

This study investigated the feasibility of integrating hydroponic barley forage (HBF)
production into dairy ruminant production, focusing on its effect on milk yield and …

The effects of genes are commonly estimated using random regression models based on
test-day data and only give a general gene effect. Alternatively, lactation curve models can …

Four hundred and nine first-lactation Bulgarian Murrah buffalo cows, having calved on the
farm of Agricultural Institute-Shumen within the period 1964-2005, were assigned with the …

The Wilmink function was used to fit lactation curves of Holstein-Friesian cows in Tunisia
using the Levenberg-Marquardt's iterative method in the nonlinear regression procedure in …