Variation between and within Populations of Mink: II. Skin and Fur Characteristics
作者:
Peer Berg,
期刊:
Acta Agriculturae Scandinavica, Section A — Animal Science
(Taylor Available online 1993)
卷期:
Volume 43,
issue 3
页码: 158-164
ISSN:0906-4702
年代: 1993
DOI:10.1080/09064709309410160
出版商: Taylor & Francis Group
关键词: heritability;maternal effects;sex interaction;progeny test
数据来源: Taylor
摘要:
Genetic and environmental sources of variation in skin and fur characteristics were estimated within and between populations in a two year mink progeny testing scheme with approximately 200 paternal progeny groups. Animals from several populations were housed at a central test station, and corresponding full-sibs were kept at the farm of origin. Data were analysed with an animal model to estimate heritabilities, common litter effects and fixed effects due to population and environment. Genetic variation within and between populations was found, together with significant environmental effects, indicating potential improvements in the breeding scheme. An interaction of sex with population and environment was considered and found significant for traits with a large sex dimorphism. Common litter effects were unimportant for traits measured, except for length and weight of skin. Discrete, subjectively measured traits are analysed with a linear model and a threshold model.
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