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Effect of chicken haemoglobin powder on growth, feed utilization, immunity and haematological index of largemouth bass (Micropterus salmoides)

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Aquaculture and Fisheries 2020年第4期5卷 187-192页

作者： Guitao Ding Songlin Li An Wanga Naisong Chen National Demonstration Center for Experimental Fisheries Science Education Shanghai Ocean UniversityShanghai201306China Research Centre of the Agriculture Ministry on Environmental Ecology and Fish Nutrition Shanghai Ocean UniversityShanghai20136China Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding Shanghai Ocean UniversityShanghai201306China

A 12-week feeding trial was conducted to evaluate the effects of replacing fish meal by chicken haemoglobin powder in largemouth bass *** isonitrogenous(48%)and isolipidic(12%)diets were formulated to replace 0%(control),9.80%,19.61%and 29.41%of fish meal with chicken haemoglobin *** diet was fed to triplicate groups of fish(initial weight:49.50±0.07 g)twice *** fish specific growth rate was significantly reduced when diet replacement level was up to 19.61%,which may be related to the feed intake and apparent digestibility coefficient of protein and amino ***,the feed efficiency ratio and protein efficiency ratio were not significantly decreased until the replacement level up to 29.41%.The activity of CCP was significantly reduced when 19.61%of fish meal was ***,the activity of lysozyme and serum protein content was significantly altered in fish fed with the diets up to 29.41%***,the red blood cell count and haemoglobin content was significantly decreased when the replacement level was up to 19.61%.In overall,the diet with 9.80%of chicken haemoglobin powder was more suitable for largemouth bass.

关键词： chicken haemoglobin meal Growth Feed utilization Non-specific immunity Largemouth bass

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