Results 81 to 90 of about 55,813 (284)

The Rumen and Gastrointestinal Microbial Environment and Its Association with Feed Efficiency and Pregnancy in Female Beef Cattle

open access: yesApplied Microbiology
With the anticipated population growth by 2050, the demand for high-quality protein for human consumption is set to rise. To enhance the sustainability of U.S.
M. Gabbi Martin   +4 more
doaj   +1 more source

Genetic Parameters of Methane Emission, Feed Efficiency, Feeding Behaviour, and Growth Traits in Beef Cattle

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Climate change has intensified the need to reduce greenhouse gas emissions, particularly methane (CH4) from enteric fermentation. Genetic selection has emerged as a promising mitigation strategy; however, studies on Bos taurus indicus , especially Nellore cattle, remain limited.
J. A. Silva   +10 more
wiley   +1 more source

Evaluation of Anogenital Distance and Anti-Müllerian Hormone Plasmatic Concentration as Potential Phenotypes to Predict Reproductive Performance in Holstein Heifers

open access: yesVeterinary Sciences
Anogenital distance (AGD) is a marker of the degree of prenatal exposure to androgens in multiple species, and it has been suggested that there is an inverse association between AGD and fertility.
Lucía Vidal   +8 more
doaj   +1 more source

Reference Intervals of Selected Serum and Plasma Biochemical Analytes in Clinically Healthy Multiparous Holstein Cows During the Periparturient Period

open access: yesVeterinary Clinical Pathology, EarlyView.
ABSTRACT Background Monitoring the metabolic changes during the periparturient period is crucial. Objective We aimed to establish reference intervals (RIs) of several serum and plasma biochemical variables in multiparous periparturient Holstein dairy cows. Methods A total of 238 multiparous dry cows from six commercial dairy farms were enrolled.
Nektarios Siachos   +6 more
wiley   +1 more source

Statistical approaches for assessing meat quality and heifer rumen histology based on dietary forage

open access: yesFrontiers in Veterinary Science
IntroductionFeeding local forages to ruminants is a promising strategy for enhancing metabolic processes, promoting sustainable farming, and improving product quality.
Alberto Benito-Díaz   +8 more
doaj   +1 more source

The Impact of Feeding Organic Trace Minerals Using Advanced Chelate Technology on Reproductive Efficiency and Blood Parameters in Ghezel Ewes

open access: yesVeterinary Medicine and Science, Volume 12, Issue 2, March 2026.
Supplementing the flushing diet with organic trace minerals based on advanced chelate technology enhanced the reproductive performance of ewes as compared with inorganic trace minerals. ABSTRACT Background The bioavailability of trace minerals (TM) in a diet is important for improving reproductive performance and fertility parameters.
Sedigheh Vatankhah   +6 more
wiley   +1 more source

Use of morphometric measurement for estimation of AI timing of Hanwoo heifer (Korean native cattle)

open access: yesJournal of Animal Reproduction and Biotechnology, 2016
The aim of the present study was to evaluate and estimate timing of artificial insemination (AI) in Hanwoo heifer (Korean native cattle) that is the most popular breed of beef cattle in Korea.
Inchul Choi   +3 more
doaj   +1 more source

Purchase and production optimization in a meat processing plant

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 2, Page 1016-1051, March 2026.
Abstract This paper addresses an optimization problem concerning the purchase and subsequent material processing in a meat processing company. Unlike the majority of existing papers, we do not concentrate on how this problem concerns supply chain management, but we focus on the production stage, primarily the meat cutting.
Marek Vlk   +3 more
wiley   +1 more source

Effects of Semen Sexing Agent (Heifer-PlusTM) in Dairy Cow Reproduction

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
This study was conducted to investigate the use cryopreserved bovine sperm treated with Heifer-PlusTM Prefreeze kit and its effect on pregnancy rates calf sex ratio embryonic death, abortion, stillbirth and twinning rates in Holstein Friesian cows A ...
Constantin Găvan, Mihaela Riza
doaj  

Estrus and pregnancy rate of Simmental-Ongole Crossbred and Ongole Grade heifer after being synchronized and inseminated

open access: yesJournal of the Indonesian Tropical Animal Agriculture, 2018
The aim of the study was to examine the synchronization of estrus and artificial insemination in heifers of Ongole grade and Simental-Ongole grade. The research used 19 Ongole Grade (OG) and 18 Simental-Ongole Crossbred (SOC) heifers.
S. Sutiyono   +2 more
doaj   +1 more source

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