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Productive Performance and Digestive Tract Size of Broiler Chicks Fed a Conventional or an all Vegetable Ingredients Diet

Abstract Al-Masri, M.R. 2006. Productive performance and digestive tract size of broiler chicks fed a conventional or an all vegetable ingredients diet. J. Appl. Anim. Res., 30: 81–84. Experiments were carried out to study the effect of feeding broiler chicks with added meat-bone meal (conventional diet) or without (vegetable diet) on feed efficiency (FE), metabolizable energy efficiency (MEE) and biological aspects of digestive organs during 1–53 days of chicks' age. The two diets had no significant (P<0.05) effects on FE and MEE. The FE values were positively correlated to the metabolizable energy consumption values (R=0.77). Changing from a diet containing meat-bone meal to an all vegetable ingredients had no negative effect on the biological aspects of broilers' digestive tract (relative weights of crop, proventriculus, gizzard, duodenum, jejunum, ileum, caeca, colon, pancreas and liver). An all vegetable diet is recommended for broiler production.