Results 11 to 20 of about 1,491,517 (300)

CATTLE FEEDER BEHAVIOR AND FEEDER CATTLE PLACEMENTS [PDF]

open access: yesJournal of Agricultural and Resource Economics, 1994
Cattle feeders appear irrational when they place cattle on feed when projected profit is negative. Long futures positions appear to offer superior returns to cattle feeding investment.
Kastens, Terry L., Schroeder, Ted C.
core   +4 more sources

Impact of heat stress on dairy cattle and selection strategies for thermotolerance: a review

open access: yesFrontiers in Veterinary Science, 2023
Climate change is a problem that causes many environmental issues that impact the productivity of livestock species. One of the major issues associated with climate change is an increase of the frequency of hot days and heat waves, which increases the ...
S. Cartwright   +3 more
semanticscholar   +1 more source

A multi-tissue atlas of regulatory variants in cattle

open access: yesNature Genetics, 2022
Characterization of genetic regulatory variants acting on livestock gene expression is essential for interpreting the molecular mechanisms underlying traits of economic value and for increasing the rate of genetic gain through artificial selection.
Shuli Liu   +27 more
semanticscholar   +1 more source

The Economic Impact of Parasitism from Nematodes, Trematodes and Ticks on Beef Cattle Production

open access: yesAnimals, 2023
Simple Summary Cattle parasites live inside or on the body of beef cattle. The most common beef parasites include intestinal roundworms, flatworms and ticks.
T. Strydom   +3 more
semanticscholar   +1 more source

Review: Genetic selection of high-yielding dairy cattle toward sustainable farming systems in a rapidly changing world.

open access: yesAnimal, 2021
The massive improvement in food production, as a result of effective genetic selection combined with advancements in farming practices, has been one of the greatest achievements of modern agriculture. For instance, the dairy cattle industry has more than
L. Brito   +8 more
semanticscholar   +1 more source

De novo assembly of the cattle reference genome with single-molecule sequencing

open access: yesGigaScience, 2020
Background Major advances in selection progress for cattle have been made following the introduction of genomic tools over the past 10–12 years. These tools depend upon the Bos taurus reference genome (UMD3.1.1), which was created using now-outdated ...
B. Rosen   +32 more
semanticscholar   +1 more source

Bovine Immunology: Implications for Dairy Cattle

open access: yesFrontiers in Immunology, 2021
The growing world population (7.8 billion) exerts an increased pressure on the cattle industry amongst others. Intensification and expansion of milk and beef production inevitably leads to increased risk of infectious disease spread and exacerbation ...
A. Vlasova, L. Saif
semanticscholar   +1 more source

Individual Beef Cattle Identification Using Muzzle Images and Deep Learning Techniques

open access: yesAnimals, 2022
Simple Summary The ability to identify individual animals has gained great interest in beef feedlots to allow for animal tracking and all applications for precision management of individuals. This study assessed the feasibility and performance of a total
Guoming Li, G. Erickson, Y. Xiong
semanticscholar   +1 more source

Non-Invasive Physiological Indicators of Heat Stress in Cattle

open access: yesAnimals, 2021
Simple Summary Heat stress is a common cause of poor welfare in cattle and is expected to increase with climate change. The biggest challenges are to feedlot and dairy cattle in hot climates but determining whether cattle are heat stressed can be ...
M. Idris   +4 more
semanticscholar   +1 more source

Peste des Petits Ruminants infection among cattle and wildlife in Northern Tanzania [PDF]

open access: yes, 2013
We investigated peste des petits ruminants (PPR) infection in cattle and wildlife in northern Tanzania. No wildlife from protected ecosystems were seropositive.
Abraham   +19 more
core   +2 more sources

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