Now showing items 1-5 of 5
Positive relationships between body weight of dairy heifers and their first-lactation and accumulated three-parity lactation production
(Elsevier on behalf of the American Dairy Science Association and the Federation of Animal Science Societies, 2019-03-01)
This study investigated the relationships between body weight (BW) and milk production of 140,113 New Zealand dairy heifers. Heifers were classified into 5 breed groups: Holstein-Friesian, Holstein-Friesian crossbred, ...
Simple hierarchical and general nonlinear growth modeling in sheep
(Scientific and Technological Research Council of Turkey (TÜBİTAK), 2018-08-09)
Differential equations and advanced statistical models have been used to predict growth phenomena. In the present study, general nonlinear growth functions such as von Bertalanffy, Gompertz, logistic, and Brody, along with ...
The Happy Factor treatment threshold, used to determine Targeted Selective Treatment decisions for lambs, is transferable between farms
(Elsevier on behalf of the Animal Consortium, 2021-02-13)
Weight gain-based treatment decision-making has been shown to successfully reduce the number of anthelmintic treatments without compromising production as part of a Targeted Selective Treatment (TST)-based worm control ...
Variation in the stearoyl-CoA desaturase gene (SCD) and its influence on milk fatty acid composition in late-lactation dairy cattle grazed on pasture
(Copernicus Publications on behalf of the Leibniz Institute for Farm Animal Biology (FBN), 2020-11-03)
Gene markers have become useful tools for improving animal genetics and breeding since they improve the accuracy of selection for superior breeding stock. In this study, the stearoyl-CoA desaturase (Δ-9-desaturase) gene ...
Identification of novel nucleotide sequence variations in an extended region of the bovine leptin gene (LEP) across a variety of cattle breeds from New Zealand and Nigeria
(Copernicus Publications on behalf of Leibniz Institute for Farm Animal Biology (FBN), 2020-07-22)
Leptin is mainly secreted by white adipose tissue in animals. Leptin acts by stimulating or inhibiting the release of a neurotransmitter, which eventually results in a decrease in food/feed intake and an increase in energy ...