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Entries with tag fertility .

Gene sequence deletion linked to reduced fertility and increased milk production in dairy cattle

Newly published research by Aarhus University in Denmark reports on a gene sequence deletion in dairy cattle which was found to have a positive effect on milk yield but caused embryonic death in dairy cattle. The deleted gene sequence encompasses four genes, and the deletion is present in 13%, 23% and 32% in Danish, Swedish and Finnish Red Cattle, respectively. The researchers...
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Genome-wide association study reveals four variants that influence conception rates in cows

Decreasing fertility is an area of concern to the dairy industry. A team of Japanese researchers have recently published the results of a genome-wide association study of Holstein cattle which has uncovered four variants, located at  PKP2, CTTNBP2NL, SETD6 , and  CACNB2 , that modulate conception rates. The scientists believe that PKP2  and  CTTNBP2NL ...
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Better understanding of bulls’ gene rich Y chromosome could help improve dairy cattle fertility

Researchers looking at the Y chromosomes of cattle have found that they have many more genes and have much more transcription activity than the Y chromosomes of primates. It is hoped that a better understanding of the bovine Y chromosome will ultimately help breeders tackle the issue of low fertility in dairy cattle.   Story source: Penn State News, 11 Jul 2013 ...
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