Table 1.

Genotype and allele frequencies of the PRNP polymorphisms in chickens.

		Genotype frequency, n (%)			Allele frequency
Polymorphisms	Total, n	+/+	+/−*	−/−	+	−
c.163_180delAACCCAGGGTACCCCCAT	106	13	89	4	115	97
c.268_269insC	106	0	4	102	4	208

*+ indicates an insertion; – indicates a deletion