AMRABIT, A. (2025). GROWTH RESPONSES OF SELECTION FOR HIGH BODY WEIGHT IN MEAT QUAIL SYNTHETIC LINE. Egyptian Poultry Science Journal, (), -. doi: 10.21608/epsj.2025.90842.1177
ABDALRAHEM ALSNUSI AMRABIT. "GROWTH RESPONSES OF SELECTION FOR HIGH BODY WEIGHT IN MEAT QUAIL SYNTHETIC LINE". Egyptian Poultry Science Journal, , , 2025, -. doi: 10.21608/epsj.2025.90842.1177
AMRABIT, A. (2025). 'GROWTH RESPONSES OF SELECTION FOR HIGH BODY WEIGHT IN MEAT QUAIL SYNTHETIC LINE', Egyptian Poultry Science Journal, (), pp. -. doi: 10.21608/epsj.2025.90842.1177
AMRABIT, A. GROWTH RESPONSES OF SELECTION FOR HIGH BODY WEIGHT IN MEAT QUAIL SYNTHETIC LINE. Egyptian Poultry Science Journal, 2025; (): -. doi: 10.21608/epsj.2025.90842.1177
GROWTH RESPONSES OF SELECTION FOR HIGH BODY WEIGHT IN MEAT QUAIL SYNTHETIC LINE
Articles in Press, Accepted Manuscript, Available Online from 19 May 2025
Faculty of Agriculture
University of Benghazi
Libya
Abstract
The main objectives of the present study were to measure the direct response of selection for high body weight at 6 weeks of age with estimated the realized heritability of body weight at 6 weeks of age for this line from the selected experiment. In respect of generation, the results were shown the heaviest body weight at all different ages in the second generation and the lightest in the base with highly significant differences. The results are shown improving of daily weight gain during different periods for selected line in both selected generations compare by control line with significant differences. Among generations, the daily weight gains during all different periods of second selected generation were the highest than the rest of generations with highly significant differences. Direct selection response of BW6 was in the first generation (16.76 g). However, selection response was decrease in the second generation (5.97 g). Finally, the body weight at 6 weeks of age was increase by 22.73 g. for selected line comparing with control line from the two selected generations. Also, the selection for BW6 had positive responses on body weight at hatch, 2 and 4 weeks of ages. The daily weight gains were improved after two generations of BW6 selection by 0.41, 0.67, 0.50 and 0.53 g/d during 0 (hatch) – 2, 2 – 4, 4 - 6 and 0 – 6 weeks of ages, respectively. It can conculcated that the results of selection for body weight at 6 weeks of age had positive responses on body weight at different ages and daily weight gain during different periods of quail growth period. Moreover, these improvements were higher in the first generation of selection than the second
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