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Studies on the influence of moderate inbreeding on inbreeding conditions culling ratio and causes the development of body mass and the sperm production and sperm quality of young bulls


Wissenschaftliche Zeitschrift der Humboldt-Universitaet zu Berlin Mathematisch-Naturwissenschaftliche Reihe 35(4): 327-334
Studies on the influence of moderate inbreeding on inbreeding conditions culling ratio and causes the development of body mass and the sperm production and sperm quality of young bulls
The inbreeding analysis of 13,076 young bulls from the 1974-1982 age classes from the East German Central Bull Breeding Station yielded a mean inbreeding coefficient of only 0.5% (inbreeding rate = 0.25%). In 93 (F = 12.5%) and 239 (F = 6.25%) inbred bulls, slight to moderate depressions (largely developmentally conditioned) in most of the parameters under investigation were observed in comparison with noninbred control animals. The depressions were greater the higher the degree of inbreeding. Nonetheless the inbred bulls fulfilled on the average the requirements for use in artificial insemination.

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Accession: 006517831



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