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Effect of Diet Composition on the Utilization of Copra Meal by Finishing Broiler Chickens

Devi, Ashika (2016) Effect of Diet Composition on the Utilization of Copra Meal by Finishing Broiler Chickens. UNSPECIFIED. (Unpublished)

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The scarcity and high cost of traditional protein sources call for more research into improving the utilization of alternative sources. The effect of dietary protein sources on the utilization of copra meal by broilers was investigated. Five finisher diets (D1, D2, D3, D4 and D5) containing 20% crude protein were formulated. The control diet(D1) was based on three traditional protein sources (fish meal, meat and bone meal and soybean meal). The other diets (D2, D3, D4, and D5) contained copra meal with different combinations of these traditional protein sources. A total of 100, 21-day old Cobb 500 broilers (777.2 ± 11.4g; 1.5 CV) were allocated to 20 floor pens. Each diet was fed to birds in 4 pens in a completely randomized design for 3 weeks. During week one, feed intake increased on D5 and weight gain increased on D2 and D5 (P<0.05). The best feed conversion ratio (P<0.05) occurred on D2. Birds fed D1 and D5 gained more weight (P<0.05) during week two. Feed conversion ratio was not affected by the diet in weeks 2 and 3. In week three, gain was maximized on diet 2 (P<0.05) and there were no dietary effects on feed intake and feed conversion ratio (P>0.05). Dressing percentage was depressed (P<0.05) on D4. Breast yield was reduced on D3 and D4 (P<0.05). There were no dietary effects on thigh and drumstick yields (P>0.05). Most segments of the gut and their digesta content weighed lighter (P<0.05) on D5. There were no dietary effects on weight of proventriculus, gizzard, and caeca. Feed cost per kilogram carcass was reduced (P<0.05) on D2. Digestibility of DM, CP, CF and Fat was improved (P<0.05) on diet 2. It was concluded, that animal protein-based diets improve the utilization of 15% copra meal by finishing broilers compared to diets containing soybean meal. Further research into higher levels of copra meal in animal protein-based diets is warranted.

Item Type: Other
Subjects: S Agriculture > S Agriculture (General)
Divisions: Faculty of Business and Economics (FBE) > School of Agriculture and Food Technology
Depositing User: Fulori Nainoca - Waqairagata
Date Deposited: 19 Jun 2017 21:31
Last Modified: 12 Oct 2021 21:43

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