Sexual dimorphism in growth and feeding of Japanese quails in Northern Guinea Savanah

  1. N. Molokwu1, H. Y. Abbaya2,

 

1Department of Animal Science, Ahmadu Bello University, Zaria, Nigeria

2Department of Animal Production, Adamawa State University (ADSU), Mubi, Nigeria

 

(Manuscript received 15 February 2018; accepted for publication 2 May 2018)

 

Abstract. The study was conducted to determine effect of sex on growth, feed consumption and reproductive pattern of Japanese quails over 16 weeks of age in the Northern Guinea Savannah of Nigeria. A total of 206 (84 males and 122 females) quails were used for the study and some of the traits measured were body weight, average daily gain, growth rate, feed intake, feed cost, feed cost to gain ratio, age at sexual differentiation and weight at sexual differentiation. There was significant (p<0.05-0.01) difference in all the parameters measured except in feed consumption and feed cost (p>0.05) at 0-3 weeks, body weight, weight gain and growth rate (p>0.05) at 13-16 weeks. There is also no significant difference in the sex differentiation traits of the age at sexual differentiation (p>0.05). It is, therefore, concluded that sexual dimorphism was observed for growth and reproductive traits with the females having more response than the males; also, the Japanese quail used for this study showed a good variation for growth and reproduction traits, thus these traits can be used as basis for selection to develop highly efficient and direct, improved lines of Japanese quails.