[Pattern of displaying recessive allele of atrophic rhinitis (AR) at different methods of pig breeding]
1997
Gavrichenkov, A.I. (Academy of Sciences of Belarus, Minsk (Belarus). Institute of Genetics and Cytology)
Experimental study of pigs has revealed their hereditary predisposition to AR. Change in the genetic population under constant elimination of the allele r resulted in a decrease in its frequency q that affected an increase in the frequency P of the allele R. Allele redistribution is an outcome of the selection directed at elimination of the allele r. Selection had an effect on genotype distribution. At first the number of homozygous RR decreased and by the end of improving head of livestock from a health point of view their number increased. The portion of heterozygous Rr individuals and recessive ones was appreciably reduced
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