Conference paper

CONSERVATION STRATEGIES FOR ENDANGERED CATTLE BREEDS IN VIEW OF COSTS AND INBREEDING

R. Lömker ; Institute of Animal Breeding and Genetics, Hannover School of Veterinary Medicine, Hannover, Germany
D.L. Simon ; Institute of Animal Breeding and Genetics, Hannover School of Veterinary Medicine, Hannover, Germany

Abstract

For conservation of endangered cattle breeds the strategies cryoconservation of semen (CS), cryoconservation of embryos plus semen (CE+CS), live animals in reproducing herds (LA) and the combination of live animals plus cryoconserved semen (LA+CS) have been compared with regard to discounted costs and accumulated
inbreeding for a simulated conservation period of 50 years. For LA and LA+CS three levels of milk production were assumed. In year 50 a population with an effective population size of Ne = 50 should be available for immediate use. Due to costs of reactivation CS turns out to be one of the most expensive strategies, the combination of LA+CS is the most attractive strategy in respect to costs, inbreeding
and important other factors. Cattle breeds which are not used for milk production cause lower costs or subsidies than breeds with low milk production (3000 kg/year).

Keywords

Hrčak ID:

163928

URI

https://hrcak.srce.hr/163928

Publication date:

18.7.1995.

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