摘要
We investigated the effects of fish protein hydrolysate (FPH) on growth performance and humoral immune response of the large yellow croaker (Pseudosciaena crocea R.). One thousand and two hundred large yellow croakers [initial average weight: (162.75±23.85) g] were divided into four groups and reared in floating sea cages (3 m×3 m×3 m). The animals were fed with 4 diets: basal diet only (control) or diets supplemented with 5%, 10% and 15% (w/w) FPH. The results show that dietary FPH levels significantly influenced the growth and immunity of the large yellow croaker. Compared with the control group, total weight gain (TWG) in all treatment groups, relative weight gain (RWG) and specific growth rate (SGR) in fish fed with diets supplemented with 10% and 15% FPH were significantly increased (P<0.05). Similar results were observed in immune parameters [lysozyme activity, serum complements, immunoglobulin M (IgM)]. Lysozyme activity, complement C4 and IgM were also significantly increased (P<0.05) in fish fed with diets supplemented with 10% and 15% FPH, while complement C3 level was significantly increased (P<0.05) in all treatment groups. In general, with the supplementation of FPH, particularly at dose of 10%, the growth performance and immunity of the large yellow croaker can be improved effectively.
We investigated the effects of fish protein hydrolysate （FPH） on growth performance and humoral immune response of the large yellow croaker （Pseudosciaena crocea R.）. One thousand and two hundred large yellow croakers [initial average weight： （162.75±23.85） g] were divided into four groups and reared in floating sea cages （3 m×3 m×3 m）. The animals were fed with 4 diets： basal diet only （control） or diets supplemented with 5%, 10% and 15% （w/w） FPH. The results show that dietary FPH levels significantly influenced the growth and immunity of the large yellow croaker. Compared with the control group, total weight gain （TWG） in all treatment groups, relative weight gain （RWG） and specific growth rate （SGR） in fish fed with diets supplemented with 10% and 15% FPH were significantly increased （P〈0.05）. Similar results were observed in immune parameters [lysozyme activity, serum complements, immunoglobulin M （IgM）]. Lysozyme activity, complement C4 and IgM were also significantly increased （P〈0.05） in fish fed with diets supplemented with 10% and 15% FPH, while complement C3 level was significantly increased （P〈0.05） in all treatment groups. In general, with the supplementation of FPH, particularly at dose of 10%, the growth performance and immunity of the large yellow croaker can be improved effectively.
出处
《浙江中西医结合杂志》
2008年第9期684-690,共7页
Zhejiang Journal of Integrated Traditional Chinese and Western Medicine
基金
Project (No. 2006C12098) supported by the Science and TechnologyDepartment of Zhejiang Province, China
关键词
小黄鱼
蛋白质
水解作用
免疫系统
Fish protein hydrolysate （FPH）, Growth performance, Humoral immune response, Large yellow croaker
