Ảnh hưởng của protein khẩu phần lên khả năng sinh trưởng và phát dục của chim Cút mái giai đoạn từ 4 đến 7 tuần tuổi

Trần Hồng Định và Hồ Thúy Hằng.

Abstract

Effect of dietary protein on growth performance and maturity of female quails 4-7 weeks of age
This study was carried out to evaluate the effect of dietary protein on growth performance and
maturity of female quails from 4 to 7 weeks of age. The experiment was done on a household farm
belonging to Nam Hung hamlet, Minh Dieu ward, Hoa Binh District, Bac Lieu province. A total
of 108 female quails were randomly arranged to three dietary treatments with three replicates (12
quails per unit) in a completely randomized design. Experimental quails were allocated to three
diets that contain a similar metabolizable energy (ME) concentration (2,800 kcal/kg) but they have
different crude protein (CP) levels. The experimental treatments were: (1) A diet containing 20%
CP (CP20), (2) A diet containing 22% CP (CP22) and A diet containing 24% CP (CP24). The results
showed that CP22 and CP24 were better body weight gain and feed conversion ratio than CP20
(P<0.05). In addition, CP22 and CP24 were higher rates of egg production than CP20 at 7 weeks of
age (P<0.05). Interestingly, CP22 was a higher egg weight than CP24 (P<0.05). It was concluded that
using the diet containing 2,800kcal ME/kg and 22% CP to feed the female quails from 4 to 7 weeks
of age was the most suitable.