Growth, immunity, and ammonia excretion of albino and normal Apostichopus japonicus (Selenka) feeding with various experimental diets
Growth, immunity, and ammonia excretion of albino and normal Apostichopus japonicus (Selenka) feeding with various experimental diets
复制标题
不同实验饲料喂养的白化刺参和正常刺参的生长、免疫和氨排泄
DOI:
10.1111/anu.12646
复制
发表时间:
2017
影响因子:
3.5
通讯作者:
Yang Hongsheng
中科院分区:
文献类型:
--
作者:
Xia Sudong;Li Man;Zhang Libin;Rahman M. M.;Xu Qinzeng;Sun Lina;Liu Shilin;Yang Hongsheng
An experiment was conducted to evaluate the effects of six experimental diets on growth performance, ammonia excretion and immunity of albino and normalApostichopus japonicus. A factorial design was used, the factors being type of diets (six levels) and colour ofA. japonicus(two levels). A total of 30 randomly selected albinoA. japonicuswere housed in each (60 × 50 × 30 cm3) of 18 blue plastic aquaria to form six groups in triplicate, and the same set‐up was used for the normalA. japonicus. Each group of animals was fed with one of the six experimental diets. Apparent dry matter digestibility (ADMD) and apparent crude protein digestibility(ACPD) were analysed using acid‐insoluble ash (AIA) content method. At the end of the experiment, allA. japonicuswere harvested and weighed to calculate growth parameters. After weighing, six individuals from each aquarium were randomly sampled for immune indices. Results indicated that all growth parameters ofA. japonicusincreased with decreasing nutrient content in their diets (p< .01), whereas an opposite result was observed in case of the ammonia‐nitrogen production byA. japonicus. NormalA. japonicusgrew better (p< .01) and produced lower (p< .01) quantity of ammonia nitrogen compared to the albinoA. japonicus. Immunity particularly superoxide dismutase and lysozyme activities was higher (p< .05) in normal compared to albinoA. japonicus. Considering all measured variables, D1 (diet containing crude protein, crude lipid, carbohydrate and crude ash 51.8, 8.7, 231.3, 708.2 g/kg, respectively) was the best diet among all experimental diets. More research is still needed to optimize nutrients in the diet ofA. japonicus, as this study does not provide information about critical threshold level of nutrients in diets. Until then, diet D1 can be recommended forA. japonicusaquaculture.