THE EFFECT OF EARLY FEED RESTRICTION ON COMPENSATORY GROWTH , PRODUCTIVE AND PHYSIOLOGICAL CHARACTERISTICS FOR BROILER CHICKEN 2- BY USING QUANTITATIVE FEED RESTRICTION PROGRAM

E.A,; S.A,; Al-Anni,; Naji,; B.M,; Ibrahim,

	THE EFFECT OF EARLY FEED RESTRICTION ON COMPENSATORY GROWTH , PRODUCTIVE AND PHYSIOLOGICAL CHARACTERISTICS FOR BROILER CHICKEN 2- BY USING QUANTITATIVE FEED RESTRICTION PROGRAM
iraqi poultry sciences journal
Article 1, Volume 2, Issue 3, 2007, Pages 1-18
Authors
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Abstract
This experiment was conducted to study the effect of early quantitative feed restriction during the first two weeks on productive and physiological performance of broiler chicks. A total of 750 unsexed one day old Arber Acers broiler chicks were randomly distributed into four treatment groups (T1 as control , T2 , T3 , T4 and T5) . Chicks in T1 were fed a standard ration ad. libtum through out the experimental period which was lasted 7 weeks . Quantitative feed restriction was used in four treatments during the period from 4-14 days of age , and then all chicks were fed ad. libtum throughout the age of marketing (at 7 weeks) . The feed restriction percentages were 12.5 , 25 , 37.5 and 50% for chicks in T2 , T3 , T4 and T5 respectively . The data showed that a compensatory growth was observed in bird of T2 , T3 and T4 , final body weight was not statistically different from control . However , the final body weight in T5 was significantly (P > 0.01) decreased when compared with that of the control . In all feed restriction treatments, feed consumption , total mortality , mortality due to ascitis and Sudden death syndrome (SDS) were significantly (P > 0.01) decreases. Feed conversion , production index (PI) and economic figure (EF) were significantly improved by feed restriction. However , blood characteristics and the antibody titer for Newcastle disease were not significantly affected by the treatments .

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