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Asian Journal of Poultry Science
Year: 2017  |  Volume: 11  |  Issue: 1  |  Page No.: 20 - 30

Effect of Fish Oil on Performance, Coccidiosis Prevention and Serum Lipid Profile in Broiler

Mukti Barua, Goutam Buddha Das, Kamrul Islam, Sharmin Chowdhury, Md. Emran Hossain, Babu Kanti Nath and Md. Shafiqul Islam    

Abstract: Background and Objective: Fish Oil (FO) is an important source of omeg-3 polyunsaturated fatty acids (PUFA) which increases performance, immunity to broilers. The present investigation was undertaken to determine the influence of dietary FO on performance, preventing coccidiosis and serum lipid profile in broilers. Materials and Methods: A total of 120 commercial chicks were randomly distributed in four groups which were treated either without FO (T0/control) or with 1% FO (T1), 2% FO (T2) and 3% FO (T3) in regular drinking water. The experiment was divided into three sections. Firstly, production performance of broilers with FO treatment was assigned. Secondly, gross and histo-pathological changes were determined in chicks infected with 104 sporulated oocysts of Eimeria spp. Finally, changes in different lipid profile parameters in broilers serum were measured. Data analysis was done for ANOVA by STATA version-12.1 where a p-value of <0.05 or <0.01 was considered statistically significant. Results: It was observed that FO in regular drinking water significantly (p<0.01) increased live weight, weight gain, feed consumption at 3rd and 4th weeks of age of broilers which were higher in T2 and T3 groups compared to others. Feed Conversion (FC) was significantly (p<0.01) better in FO supplemented groups. At necropsy, birds of control, T1 groups developed severe gross and histopathological lesions of coccidiosis. However, no lesions were developed in birds of T2 or T3 groups. With increasing levels of FO in the broiler diets, serum HDL-cholesterol level increased and cholesterol, LDL-cholesterol, triglycerides levels decreased significantly (p<0.01). Conclusion: It can be concluded that supplementing either 2 or 3% fish oil in regular drinking water of broiler is helpful in increasing performance, improving serum lipid profile of broilers. Birds also represent a high immune response against coccidiosis at these levels. All these positive effects can be gained in broiler if we can establish using fish oil in regular drinking water of broilers. Moreover, there will be least chance of developing drug resistance in broilers eventually in human caused by using coccidiostat for prevention of coccidiosis.

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