Effect of size-fractionated fish protein hydrolysate on growth and feed utilization of turbot (Scophthalmus maximus L.)
文献类型: 外文期刊
作者: Zheng, Keke 1 ; Liang, Mengqing 1 ; Yao, Hongbo 1 ; Wang, Jialin 1 ; Chang, Qing 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China
关键词: Scophthalmus maximus;fish protein hydrolysate;growth performance;feed utilization;non-specific immune response
期刊名称:AQUACULTURE RESEARCH ( 影响因子:2.082; 五年影响因子:2.415 )
ISSN: 1355-557X
年卷期: 2013 年 44 卷 6 期
页码:
收录情况: SCI
摘要: Four experimental diets were fed to turbot to examine the effect of fish hydrolysate and ultra-filtered fish hydrolysate on growth performance, feed utilization and non-specific immune response. Fish hydrolysate was produced by enzymatic treatment and size fractionated using ultra-filtration (UF). The permeate (molecular weight <1000Da) after UF and the non-ultra-filtered fish hydrolysate (NUF) were tested as feed ingredients. Diets UF1, UF2 contained 3.7%, 1.2% ultra-filtered fish hydrolysate to replace fish meal protein respectively. The diets UF1, NUF were identical in composition except that the molecular weight of fish hydrolysate in the diet. Fish meal was used in the control diet. All diets were made equal in protein, lipid and energy. Each experimental diet was fed to juvenile turbot (27.87 +/- 0.04g) in triplicate for 8weeks. Results of this study indicate that the best overall growth and feed utilization of turbot juveniles were obtained with a diet containing higher dose of the small molecular weight compounds in fish hydrolysate. Acid phosphatase, alkaline phosphatase, lysozyme and superoxide dismutase activity in serum were not affected by diet. Total antioxidant capacity was improved with increasing level of low molecule weight fish hydrolysate (UF1).
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