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Published:
Feb 23, 2007DOI:
10.4314/as.v3i2.1510Keywords:
genotypes semen cock naked-neck frizzle.
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Ejaculate characteristics of three genotypes of local cocks in the humid tropics
Abstract
Twenty four (24) adult Nigerian local cocks comprising 8 naked-neck, 8 frizzle and 8 normal were subjected to two ejaculations per week for 14 weeks using the massage technique. Ejaculates were subjected to both physical and chemical evaluations. Results showed that naked- neck and frizzle cocks had higher (P<0.01) ejaculate volume, sperm concentration, total sperm, and sperm motility than the normal cocks. Semen colour and total abnormal sperm did not differ significantly (P>0.05) among the three genotypes. There were also no significant differences in most of the chemical parameters among the genotypes. From these results the naked-neck and frizzle cocks appear superior to normal cocks under the humid tropical environment in semen output and quality..
Keywords: genotypes, semen, cock, naked-neck, frizzle.
Agro-Science Vol. 3 (2) 2006: pp. 33-36
