The Effects of Tomato Pomace with Enzyme on Growth, Body Composition and Digestibility of Common Carp (Cyprinus carpio L.)

Document Type : Research Paper

Authors

1 M.Sc. Student, Department of fisheries, Faculty of animal sciences and fisheries, Sari Agriculture Sciences and Natural Resources University, Sari, Iran.

2 Associate Professor, Department of fisheries, Faculty of animal sciences and fisheries, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.

3 Ph.D. student, Department of fisheries, Faculty of animal sciences and fisheries, Sari Agricultural Sciences and Natural, Sari, Iran.

Abstract

This study was to evaluate growth performance, nutrients digestibility and body composition in common carp, Cyprinus carpio, fed different levels of tomato pulp supplemented with enzyme complex. This research was conducted in the frame of a completely randomized design with seven four treatments and three replicates each. The diets were formulated by exchanging 10, 20 and 30% of tomato pulp with soybean meal and wheat flour. The three experimental diets were made by inclusion of enzyme complex (at 0.4 g/kg) to the pulp diets. A diet with no enzyme and tomato pulp was considered as a control diet in the current study. The result showed that maximum growth in common carp was obtained with diet contained 10 % tomato pulp (P<0.05). Inclusion of 10% tomato pulp also improved substantially feed conversion ratio than the other diets (P<0.05). In addition, 30% tomato pulp inclusion did not change carp growth compared with the control diet. Dry matter digestibility in carp was not affected by addition of progressive levels of tomato pulp with enzyme. However, protein digestibility was decreased with increasing the tomato pulp levels. Maximum protein digestibility was observed in common carp feeding on control diet and this is followed by diets with 10, 20 and 30% tomato pulp (P<0.05). Fat digestibility improved with increasing tomato pulp levels in the diets. Moreover, tomato pulp with enzyme did not influence body composition in common carp (P>0.05).

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Journal of Fisheries
Volume 70, Issue 2 - Serial Number 2
August 2017
Pages 170-178

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