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Analysis of breeding strategies against genetic disorders in Austrian Fleckvieh cattle
The study evaluates different breeding strategies against genetic defects in Fleckvieh AUSTRIA in terms of annual monetary genetic gain and discounted profit. Presently six genetic disorders are published for Austrian Fleckvieh (Simmental) cattle. The allele frequencies vary between 0.5 and 7% in the female population. If all male carriers are erased from the breeding program, both in herdbook cows as well as in planned mating, 7% loss in annual monetary genetic gain and 9% reduction in discounted profit have to be expected. If carriers are excluded in herdbook cows only, the reduction in annual monetary genetic gain is 2.4% and 3% in discounted profit, respectively. The reduction in genetic gain due to discard of carriers can be compensated by increased use of MOET.
Keywords:
genetic disorders
breeding strategy
genetic response
discounted profit
