EFFECT OF REDUCING PROTEIN CONCENTRATE LEVEL DURING GROWER PERIOD ON BROILERS PERFORMANCE

Razuki, W.M.; Hussain, S.H.; Al-Khilani, F.M.; Khadim, S.T.

	EFFECT OF REDUCING PROTEIN CONCENTRATE LEVEL DURING GROWER PERIOD ON BROILERS PERFORMANCE
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 14, Issue 8, 2009, Pages 0-0
Authors
W.M. Razuki; S.H. Hussain; F.M. Al-Khilani; S.T. Khadim
Abstract
Two experiments were carried out at defferent times to evaluate the effects of reducing protein (plant or animal) concentrate level during grower period on broiler chick's performance. At 28 days of age, A total of 400 (Exp. 1) and 320 (Exp. 2) of Ross strain broiler chicks were used. In the first experiment, chicks were fed on four grower diets as follow : a grower diet A (control diet) which contained 10% Plant Protein (BRECONEX) Concentrate (PPC) fed from 29 to 49 days of age, a grower diet B which contained 5% PPC fed only from 29 to 35 days of age and fed on diet A to the end of experiment, a grower diet C which contained 5% PPC fed only from 36 to 42 days of age and fed on diet A to the end of experiment ,and a grower diet D which contained 5% PPC fed only from 43-49 days of age. In the second experiment, chicks were fed on four grower diets as follow : a grower diet A (control diet) which contained 10% Animal Protein (PROVIMI) Concentrate (APC) from 29 to 49 days of age, a grower diet B which contained 5% APC fed only from 29-35 days of age and fed on diet A to the end of experiment, a grower diet C which contained 5% APC fed only from 29 to 42 days of age and fed on diet A to the end of experiment and a grower diet D which contained 5% APC fed from 29-49 days of age. The results of first experiment showed a significant (p<0.05) reduction in live body weight and feed conversion ratio and significant (p<0.05) increasing in feed consumption during period of 29-49 days of age for chicks fed on grower diets B as compared with those fed on control diet A which contained 10 % of a similar protein. However, the differences between other treatments (C and D) and control group had nonsignificant. The results of second experiment showed that reducing animal protein concentrate (Provimi) level from 10 to 5% during grower period had no significant effects on broiler chick's performance. Therfore; it can be concluded that this study indicated that reducing level of plant or animal protein concentrate from 10 to 5% in broiler grower diets during partial or complete grower phase had no any adversely effects on broilers performance.

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