Results 41 to 50 of about 336,156 (254)

Influence of yeast culture and feed antibiotics on ruminal fermentation and site and extent of digestion in beef heifers fed high grain rations.

Journal of Animal Science, 2018
The study objective was to investigate the effects of site of delivering Saccharomyces cerevisiae fermentation product (SCFP) on ruminal pH and fermentation characteristics, and the site and extent of feed digestion in the digestive tract of beef heifers
Yi-Zhao Shen, Hong-Rong Wang, Tao Ran, I. Yoon, A. Saleem, Wenzhu Yang   +5 more
semanticscholar   +1 more source

Puberty in Beef Heifers: A Review

Jurnal Ilmu Peternakan Dan Veteriner, 2018
Performans reproduksi optimum dari ternak betina adalah faktor yang sangat penting dalam suatu usaha peternakan sapi potong, sebab sebuah perusahaan peternakan sapi potong hanya dapat berlangsung dengan baik jika ada cukup pedet yang dilahirkan, bertumbuh dengan baik sampai dipasarkan.
openaire   +2 more sources

Growth Performance, Carcass Characteristics and Economic Viability of Nguni Cattle Fed Diets Containing Graded Levels of Opuntia ficus-indica

Agriculture, 2022
Given the severe droughts caused by global warming, smallholder beef cattle farmers are faced with serious forage and feed scarcity. This becomes worse for resource-poor farmers who cannot afford commercial feeds.
Ayanda Nyambali, Mthunzi Mndela, Tlou Julius Tjelele, Cletos Mapiye, Phillip Evert Strydom, Emiliano Raffrenato, Kennedy Dzama, Voster Muchenje, Ntuthuko Raphael Mkhize   +8 more
doaj   +1 more source

Effects of Developmental Programming Caused by Maternal Nutrient Intake on Postnatal Performance of Beef Heifers and Their Calves

Animals, 2019
Simple Summary The nutrient intake of a cow during the early stages of pregnancy can have detrimental effects on the developing fetus. The adaptive response of the fetus to the restricted intrauterine environment can modify organ development.
A. Noya, I. Casasús, J. Ferrer, A. Sanz
semanticscholar   +1 more source

Ingestive behavior, performance and forage intake by beef heifers on tropical pasture systems

Revista Brasileira de Zootecnia, 2013
The experiment was carried out to evaluate forage intake, performance and ingestive behavior of beef heifers. Productive, structural and chemical characteristics of the pasture were also evaluated. The experimental design was completely randomized in a 3
Renato Alves de Oliveira Neto, José Henrique Souza da Silva, Marta Gomes da Rocha, Luciana Pötter, Maria José de Oliveira Sichonany, Ludmila Leonardi Biscaíno, Felipe Asconavieta dos Santos, Marcos Vinicios Beck Difante   +7 more
doaj   +1 more source

Are dairy cows replaced too early? Evidence from a structural model and cow‐level data

American Journal of Agricultural Economics, EarlyView.
Abstract In past analyses of animal replacement decisions, studies have claimed that dairy farms often replace dairy cows too early to be maximizing profits. I estimate a structural model of asset replacement to determine the motives behind early replacement of dairy cows.
Jared P. Hutchins
wiley   +1 more source

Impact of 24-h feed, water, or feed and water deprivation on feed intake, metabolic, and inflammatory responses in beef heifers.

Journal of Animal Science, 2018
This experiment investigated the effects of 24-h feed or water deprivation on hay intake, metabolic, and inflammatory responses in growing beef heifers.
R. Marques, D. Bohnert, O. A. de Sousa, A. Brandão, T. Schumaher, K. Schubach, M. P. Vilela, B. Rett, R. Cooke   +8 more
semanticscholar   +1 more source

Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope

Animal Research and One Health, EarlyView.
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad, Hubdar Ali Kolachi, Jesse Oluwaseun Ayantoye, Xiaomeng Zhang, Muhammad Usman Mehmood, Rajilan Hilali Shanga, Pengcheng Wan, Xueming Zhao   +7 more
wiley   +1 more source

Effect of humic substances on rumen fermentation, nutrient digestibility, methane emissions, and rumen microbiota in beef heifers.

Journal of Animal Science, 2018
Ruminants play an important role in food security, but there is a growing concern about the impact of cattle on the environment, particularly regarding greenhouse gas emissions.
S. Terry, Gabriel de Oliveira Ribeiro, R. Gruninger, M. Hunerberg, Sheng Ping, A. Chaves, Jake Burlet, K. Beauchemin, T. McAllister   +8 more
semanticscholar   +1 more source

Beyond Protein Synthesis: The Multifunctional Role of Functional Amino Acids in Modulating Meat Quality in Ruminants

Animal Research and One Health, EarlyView.
Multifunctional roles of functional amino acids in regulating meat quality in ruminants: Functional amino acids (FAAs) regulate ruminant meat quality through multiple interconnected mechanisms, including antioxidant protection, metabolic regulation, signal transduction, structural support, and gene expression modulation.
Zixin Liu, Tian Xia, Xiaokang Lv, Man Ren, Chuanshe Zhou, Zhiliang Tan   +5 more
wiley   +1 more source