Genetic evaluation of breeding efficiency estimated by Tomar ‎equation in Holstein cattle by F.R. Al-Samarai

“… Data analyzed included 13838 records belonged to 4100 Holstein cows over period 1988 to 2005, at the Nasr Dairy Cattle Station.             The aim of the study is to evaluate sires genetically according to their daughters breeding efficiency which was estimated by Tomar equation and to estimate heritability and phenotypic trend for breeding efficiency. …”
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Water-Based Supplementation Technology for Grazing Cattle in the Tropics: A Large-Scale Commercial Case Study by Eliéder Prates Romanzini, Vivienne McCollum, Sarah Mcilveen, Evandro Maia Ferreira, William Luiz de Souza, Marcelo Augusto Oliveira Castro, Priscila Arrigucci Bernardes, Ryan J. Batley, Mark G. Trotter, Diogo Fleury Azevedo Costa

“…This case study assessed the use of water injection technology to deliver nutrients and a methane-reducing compound to cattle on a commercial cattle station under extensive grazing conditions. A total of 120 steers [initial liveweight (LW) 322.5 ± 28.3 kg] were assigned to three groups: water only (Control), a water supplement containing nutrients such as nitrogen and phosphorus, known as uPRO GREEN^® (Green), and uPRO GREEN^® combined with Agolin Ruminant L^® (Blue). …”
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