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Agro-Science
Journal of Tropical Agriculture, Food, Environment and Extension
 

ISSN 1119-7455
   
 
         
 
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Article No 5 of Volume 3.2 (2004)
 
    
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EJACULATE CHARACTERISTICS OF THREE GENOTYPES OF LOCAL COCKS IN THE HUMID TROPICS

Machebe, N.S and Ezekwe, A. G

Department of Animal Science University of Nigeria, Nsukka

 

 

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.

 

Key words: genotypes, semen, cock, naked-neck, frizzle.

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Date:19/07/2018
 
     
 
 
 
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