نوع مقاله : مقاله پژوهشی
نویسندگان
گروه علوم و مهندسی شیلات، دانشکده منابع طبیعی و محیط زیست، دانشگاه ملایر، ملایر، همدان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Introduction: At present, due to the decrease in wild catch and the increase in demand, finding an alternative protein source for fish meal in aqua-feed has become one of the challenges of the aquaculture industry. One of the alternative sources is insects that are considered part of the natural food of aquatic animals, especially in the larval stage, and are rich in amino acids, fats, vitamins, and minerals. The aim of the present study was to evaluate the effect of black soldier fly larvae meal (BSFLM) in the diet of Pacific white shrimp, Litopenaeus vannamei post-larvae on growth performance and digestive enzyme activity.
Materials and methods: Four experimental diets were prepared in triplicate with replacement levels of 0 (D1), 25 (D2), 50 (D3), and 100% (D4) of fish meal with BSFLM as isonitrogenous and isocaloric diets. The effect of the prepared diets on growth performance and digestive enzyme activity in the Pacific white shrimp post larvae (weight: 4 mg) was evaluated for 70 days.
Results and discussion: The obtained findings showed that using BSFLM up to 50% (D3) significantly increased the final BW, WG, SGR, PER, and LER, while those indices significantly decreased in shrimp fed with D4 (P<0.05). The FCR revealed a significant decrease of up to 50% BSFLM but significantly increased in shrimp fed with D4 (P<0.05). The digestive enzyme activity from the hepatopancreas and intestine indicated that trypsin and lipase had a significant increase in the shrimp fed with diets up to 50% BSFLM (P<0.05), while amylase showed no significant difference. The digestive enzymes significantly decreased in the shrimp fed with D4 (P<0.05).
Conclusion: Based on the results of this study, fish meal replacement with BSFLM up to 50% had a significant effect on shrimp growth performance and digestive enzyme activity.
Funding: The author has no sources of funding for the present work.
Acknowledgements: The author would like to thank the helpful assistance offered by the staff of the Persian Gulf Aquatic Resources Restoration Center, located in Bandar Kolahi, Minab, Hormozgan.
کلیدواژهها [English]
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