File:Friesian-Holstein breed.png

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Animal husbandry - Holstein-Friesian breed of cows

Main topic Animal husbandry
Holstein-Friesian cows are also known as Holstein cattle or Friesian cow. These animals are the world's highest milk producing cattle. A mature Holstein-Friesian weighs up to 600 kg and stands 150 cm tall at shoulder. Holstein heifers are mature by 15 months and breed at that age. The gestation period of Holstein heifers is about nine and half months. Holstein heifers calve for the first time between 23 and 26 months of age.

Friesian cows dominate the UK dairy cow population. Friesian cattle stock and semen are exported to many countries. Friesian is suitable for farms where grazing is the main feature of the system.

The black and white expression of colors on fur-coat of Holsteins is due to dominant alleles of if genes. However the black color gets replaced in some offspring to red. This is due to the expression of a recessive gene. When the parents have both dominant genes (say 'BB'), all the offspring will also be 'BB' and have black patches.

Related pictures & information

Description Friesian-Holstein breed
Source Cow from Image Number K5176-3 Photo by Keith Weller.
Modified by User:Mahmood
PermissionThis image is in the public domain because it contains materials that originally came from the Agricultural Research Service, the research agency of the United States Department of Agriculture. This modified file is also released under the above terms by the User:Mahmood.

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current19:28, 23 November 2012Thumbnail for version as of 19:28, 23 November 2012135 × 135 (50 KB)Mahmood (Talk | contribs)

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