1997
DOI: 10.1111/j.1439-0388.1997.tb00490.x
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Population structure of the Japanese Brown breed

Abstract: The population structure of the Japanese Brown in Kumamoto Prefecture was investigated with pedigree analysis. Two hundred heifers were randomly sampled, in 1960, 1970, 1980, and 1990. Population genetic parameters, i.e. F-statistics, index of subdivision, generation interval, effective population size, and effective number of sires, were estimated. The effective number of sires decreased, most dramatically, from 1970 to 1980. The average inbreeding coefficient (F(IT) ) increased, from 0.64% in 1960 to 5.43% i… Show more

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