Food rationing system in time and compensatory growth of two strains of Broiler chicken | ||
| iraqi poultry sciences journal | ||
| Article 1, Volume 6, Issue 1, December 2012, Pages 53-63 | ||
| Author | ||
| Z. Abdullah H. S. Abdul - Razaq | ||
| Abstract | ||
| This experiment was conducted at poultry farm in Grda-Rash , college of Agriculture university of Salahaddin . A216 unsexed one-day-old broiler chicks were used in this study . Birds were divided in two strain (108) of them was Hubbard and the other (108) was Cobb500 . Each strain divided in to three treatment (T1,T2,T3) and the chicks in each treatment were subdivided in three replicate . Chicks were in T1 were used as control and provided feed ad libitum . Feed restricted broiler T2 , provided feed (9 hour per day ) and T3 , provided feed (12 hour per day ) from the age ( 7 – 14 ) days . Results showed the means body weight and growth rate in Cobb500 chicks were increased (p> 0.05 ) due to the compensatory growth in the last four weeks of age whereas abdominal fat yield and mortality were decreased significantly (p> 0.05 ) in feed-restricted birds . There were no significant differences in feed conversion ratio , dressing percentage , breast cut at (42) days of age . | ||
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