Results 1 to 10 of about 169,461 (153)

The Nasopharyngeal, Ruminal, and Vaginal Microbiota and the Core Taxa Shared Across These Microbiomes in Virgin Yearling Heifers Exposed to Divergent in Utero Nutrition During Their First Trimester of Gestation and in Pregnant Beef Heifers in Response to Mineral Supplementation

Microorganisms, 2021
In the present study, we evaluated whether the nasopharyngeal, ruminal, and vaginal microbiota would diverge (1) in virgin yearling beef heifers (9 months old) due to the maternal restricted gain during the first trimester of gestation; and (2) in ...
Devin B. Holman, Timothy D Schwinghamer, Tingting Liu   +2 more
exaly   +4 more sources

Genome-Wide Association Analyses of Fertility Traits in Beef Heifers

Genes, 2021
The ability of livestock to reproduce efficiently is critical to the sustainability of animal agriculture. Antral follicle count (AFC) and reproductive tract scores (RTS) can be used to estimate fertility in beef heifers, but the genetic mechanisms ...
Troy N Rowan, John B Hall, Brenda M Murdoch   +2 more
exaly   +2 more sources

Evaluation of age, weaning weight, body condition score, and reproductive tract score in pre-selected beef heifers relative to reproductive potential

Journal of Animal Science and Biotechnology, 2019
Background Artificial insemination is a preferred breeding method for beef heifers as it advances the genetic background, produces a predictive and profitable calving season, and extends the heifer’s reproductive life span.
Sarah E. Dickinson, Michelle F. Elmore, Lisa Kriese-Anderson, Joshua B. Elmore, Bailey N. Walker, Paul W. Dyce, Soren P. Rodning, Fernando H. Biase   +7 more
doaj   +2 more sources

Transcriptome profiles in peripheral white blood cells at the time of artificial insemination discriminate beef heifers with different fertility potential

BMC Genomics, 2018
Background Infertility is a longstanding limitation in livestock production with important economic impact for the cattle industry. Female reproductive traits are polygenic and lowly heritable in nature, thus selection for fertility is challenging.
Sarah E. Dickinson, Brock A. Griffin, Michelle F. Elmore, Lisa Kriese-Anderson, Joshua B. Elmore, Paul W. Dyce, Soren P. Rodning, Fernando H. Biase   +7 more
doaj   +2 more sources

Acclimation During the 7-Day CO-Synch + CIDR Protocol Improves Temperament and Pregnancy Rate to Timed Artificial Insemination in Bos taurus Beef Heifers [PDF]

Animals
Temperament has been associated with reproductive success in beef cattle, with excitable animals often exhibiting reduced fertility. This study evaluated whether acclimating heifers to human handling during an ovulation synchronization protocol improves ...
Sydney Flax, Danielle M. Ellinghuysen, Allen G. Schwartz, Jack Lemmon, Joao V. C. Silva, Santiago P. Hurtado, Andreia Ferreira Machado, Victor E. Gomez-Leon, John R. Jaeger, Nicola Oosthuizen, Kenneth C. Olson, Felipe A. C. C. Silva, Sandy K. Johnson, Nicholas W. Dias   +13 more
doaj   +2 more sources

Production, Carcass Characteristics and Valuable Cuts of Beef Breed Bulls and Heifers in Finnish Beef Cattle Population

Agricultural and Food Science, 2015
The objective of the present study was to determine growth and carcass traits of beef breed bulls and heifers in the Finnish beef cattle population. The data collected from Finnish slaughterhouses included observations of 6323 and 2385 Hereford (bulls ...
Maiju Pesonen
exaly   +3 more sources

Network-based multi-omics approaches to identify molecular signatures associated with pregnancy status in beef heifers [PDF]

Frontiers in Genetics
Fertility is a multifactorial trait and a key determinant of productivity and sustainability in beef cattle production. Identifying molecular mechanisms and biomarkers associated with fertility could improve the prediction of reproductive potential in ...
T. Cody Brown, Priyanka Banerjee, Paul W. Dyce, Shollie Falkenberg, Soren P. Rodning, Wellison J. S. Diniz   +5 more
doaj   +2 more sources

Dataset for miRNA expression analysis in the peripheral white blood cells of beef heifers at weaning

Data in Brief, 2023
Subfertility in beef heifers leads to a substantial economic loss for producers and beef industry. To overcome this problem, producers require an efficient system to discriminate beef heifers with varying reproductive potential as early as possible ...
Priyanka Banerjee, Wellison J.S. Diniz, Paul W. Dyce   +2 more
doaj   +1 more source

Effect of Chitosan Inclusion and Dietary Crude Protein Level on Nutrient Intake and Digestibility, Ruminal Fermentation, and N Excretion in Beef Heifers Offered a Grass Silage Based Diet

Animals, 2021
Simple Summary The level of crude protein offered to beef cattle has an impact on the level of nitrogen excreted into the environment, contributing towards ammonia emissions, which have a negative impact on terrestrial and aquatic ecosystems as well as ...
S. Kirwan, K. Pierce, E. Serra, M. McDonald, G. Rajauria, T. Boland   +5 more
semanticscholar   +1 more source

Vitamin and mineral supplementation and rate of gain during the first trimester of gestation affect concentrations of amino acids in maternal serum and allantoic fluid of beef heifers.

Journal of Animal Science, 2021
The objective of this study was to evaluate the effects of feeding vitamin and mineral (VTM) supplement and (or) rate of gain (GAIN) during early gestation on amino acid (AA) concentrations in allantoic (ALF) and amniotic fluid (AMF) and maternal serum ...
A. Menezes, K. McCarthy, C. Kassetas, F. Baumgaertner, J. Kirsch, S. Dorsam, T. Neville, A. Ward, P. Borowicz, L. Reynolds, K. Sedivec, J. C. Forcherio, R. Scott, J. Caton, C. Dahlen   +14 more
semanticscholar   +1 more source