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Cattle Cycles [PDF]

open access: possibleJournal of Political Economy, 1994
U.S. beef cattle stocks are among the most periodic economic time series. A theory of cattle cycles is constructed on the basis of breeding stock inventory decisions. The low fertility rate of cows and substantial lags and future feedback between fertility and consumption decisions cause the demographic structure of the herd to respond cyclically to ...
Sherwin Rosen   +2 more
openaire   +1 more source
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Cloning Cattle

Cloning and Stem Cells, 2003
Over the past six years, hundreds of apparently normal calves have been cloned worldwide from bovine somatic donor cells. However, these surviving animals represent less than 5% of all cloned embryos transferred into recipient cows. Most of the remaining 95% die at various stages of development from a predictable pattern of placental and fetal ...
B, Oback, D N, Wells
openaire   +2 more sources

1000 Bull Genomes Project to Map Simple and Complex Genetic Traits in Cattle: Applications and Outcomes.

Annual Review of Animal Biosciences, 2019
The 1000 Bull Genomes Project is a collection of whole-genome sequences from 2,703 individuals capturing a significant proportion of the world's cattle diversity.
B. Hayes, H. Daetwyler
semanticscholar   +1 more source

Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus Infection in Domestic Dairy Cattle and Cats, United States, 2024

Emerging Infectious Diseases
We report highly pathogenic avian influenza A(H5N1) virus in dairy cattle and cats in Kansas and Texas, United States, which reflects the continued spread of clade 2.3.4.4b viruses that entered the country in late 2021.
Eric R. Burrough   +12 more
semanticscholar   +1 more source

Cattle-to-Cattle Transmission of Bovine Tuberculosis

The Veterinary Journal, 2000
In developed countries, Mycobacterium bovis infection in cattle is now mostly confined to the respiratory system, which reflects transmission and establishment of infection mainly by this route. A single bacillus transported within a droplet nucleus is probably sufficient to establish infection within the bovine lung.
F D, Menzies, S D, Neill
openaire   +2 more sources

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