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Agriculture & Food, Volume 6, 2018

EVALUATION OF DRIED TOMATO POMACE AS UNCONVENTIONAL FEED IN BROILERS DIET: NUTRITIONAL, ZOOTECHNICAL AND IMMUNE PARAMETERS
Maha M. Hady, Mohamed M. Zaki, Shaimaa R. Anwer
Pages: 52-63
Published: 19 Jul 2018
Views: 746
Downloads: 215
Abstract: The current study was carried out to evaluate the impact of dietary dried tomato pomace (DTP) inclusion on the zootechnical performance parameters ,carcass traits and immune status of broiler chickens when included at two levels (8&16%) with or without commercial enzyme (MZ) supplementation in a maize-soybean diet. One –hundred and eighty-one- day old unsexed Cobb broiler chickens were arranged in complete randomized 3X2 factorial design in 35- day trial. The nutritive value for the DTP were determined and accordingly, two isonitrogenous – isocaloric experimental diets (starter and finisher) were formulated to which the % of DTP was 0(C0), 8 (DTP8) & 16 (DTP16) and for each level the MZ supplementation was added either 0 or 200gm/ton. Zootechnical parameters (body weight development, feed consumption and Feed conversion ratio) were determined. Phagocytic activity, phagocytic index and HI titers for Newcastle Disease (NDV) were selected parameters for immune response. The results revealed that 16% DTP with MZ produced highly significant (p<0.05) increase for feed intake, body weight and significant (p<0.05) decrease for Feed conversion ratio in comparison to the control or the 8%DTP with or without MZ. However, the low level of DTP surpassed all non- supplemented MZ groups in final body weight and FCR. Phagocytic activity and index, and antibody production against NDV were not affected by the supplementation of DTP at both levels, meanwhile, the same groups fed DTP with MZ showed significant (p<0.05) improvement for all selected immune parameters. Carcass traits demonstrated the groups fed DTP at any level with MZ posses significant (p<0.05) lowered abdominal fat compared with the non-supplemented groups. The economic study confirmed that DTP could be successfully incorporated in broilers diet at the highest level (16%) on condition that it must be included in a well-balanced diet and it is used with the suitable enzyme combination.
Keywords: broilers, dried tomato pomace, immunity, multi- enzyme, performance, unconventional feedstuff
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