Morten Kargo

Combi-Cross – The Use of New Technologies for Improving Dairy Crossbreeding Programs

Research output: Contribution to conferencePaperResearchpeer-review

  • Morten Kargo
  • Jehan Frans Ettema
  • Lydia Henriette Sørensen, Denmark
  • M Fjordside, VikingDenmark, Viborg, Denmark, Denmark
  • Line Hjortø, Knowledge center for Agriculture, Denmark
Combi-cross combines the advantages of pure breeding and crossbreeding within herd through a hierarchical breeding program with use of sexed semen. The highest ranking females in a purebred nucleus are used for pure breeding, while the lower ranking are used for production of Two-cross animals (f 1). The Two-cross animals produce Three-cross animals also expressing full heterosis. As sexed semen is intensively used in the first two stages of the program all Three-cross animals can be inseminated with beef semen. With a 30% replacement rate it possible to reduce the purebred nucleus to 33% of the production cows. The Combi-Cross concept is demonstrated in five demonstration herds, where 331 of the more than 1300 cows are Two-cross cows, producing at the same level as the Holstein cows
Original languageEnglish
Publication year17 Aug 2014
Number of pages3
Publication statusPublished - 17 Aug 2014
Event10th World Congress on Genetics Applied to Livestock Production (WCGALP) - The Westin Bayshore, 1601 Bayshore Drive, Vancouver, BC V6G 2V4, Vancouver, Canada
Duration: 17 Aug 201422 Aug 2014
Conference number: 10th

Conference

Conference10th World Congress on Genetics Applied to Livestock Production (WCGALP)
Number10th
LocationThe Westin Bayshore, 1601 Bayshore Drive, Vancouver, BC V6G 2V4
CountryCanada
CityVancouver
Period17/08/201422/08/2014

    Research areas

  • dairy cattle breeding, strategies, crossbreeding, sexed semen

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