Effects of dietary vitamin B-1 on growth performance, blood metabolites, body composition, intestinal enzyme activities and morphometric parameters of juvenile yellow catfish (Pelteobagrus fulvidraco)
文献类型： 外文期刊
作者： Zhao, Hongxia 1 ; Chen, Bing 1 ; Huang, Yanhua 1 ; Cao, Junming 1 ; Wang, Guoxia 1 ; Chen, Xiaoying 1 ; Mo, Wenyan 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Anim Nutr & Feed Sci South China, Guangzhou, Peoples R China
3.Guangdong Key Lab Anim Breeding & Nutr, Guangzhou, Peoples R China
关键词： blood metabolites; body composition; growth performance; intestinal enzyme activities; Pelteobagrus fulvidraco; vitamin B-1
期刊名称：AQUACULTURE NUTRITION （ 影响因子：3.497； 五年影响因子：3.78 ）
ISSN： 1353-5773
年卷期： 2020 年 26 卷 5 期
页码：
收录情况： SCI
摘要： The effects of vitamin B-1 on growth, blood metabolites, body composition, intestinal enzyme activities and morphometric parameters were evaluated by a 63-day feeding trial in Pelteobagrus fulvidraco fed diets containing vitamin B-1 with 4.29, 6.02, 7.86, 11.94 and 19.05 mg/kg, respectively. Results showed that 7.86 mg/kg vitamin B-1 resulted in significantly higher weight gain (WG), specific growth rate (SGR) and protein efficiency ratio (PER) (p < .05). Serum triglyceride, cholesterol and whole-body lipid were observed in 11.94 mg/kg vitamin B-1 group significantly higher than those in 4.29 mg/kg group, accompanied by the lower serum glucose content in the same group (p < .05). Significantly higher values of whole-body protein, serum total protein, relative intestinal length, fold height, intestinal trypsin, amylase, alkaline phosphatase, Na+/K+-ATPase, gamma-glutamyl transpeptidase, creatine kinase, muscular layer thickness and intestosomatic index were observed in 7.86 mg/kg vitamin B-1 group compared with those in 4.29 mg/kg group (p < .05). These results suggested that diets supplemented with vitamin B-1 improved growth performance, feed utilization, intestinal digestive and absorption capacity of juvenile yellow catfish. The optimal dietary vitamin B-1 requirements estimated using a two-slope broken-line model based on WG and PER of yellow catfish were 7.42 and 6.01 mg/kg, respectively.
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