动物营养学报2018，Vol.30Issue(6)：2245-2251,7.DOI:10.3969/j.issn.1006-267x.2018.06.028
酵母浸粉对家蚕血淋巴中甘油三酯含量和尿酸代谢的影响
Effects of Yeast Extract Powder on Triglyceride Content and Uric Acid Metabolism in Hemolymph of Silkworms
摘要
Abstract
This experiment was conducted to investigate the effects of yeast extract powder ( YEP) on the con-tent of triglyceride and the metabolism of uric acid ( UA) in hemolymph of silkworms ( Bombyx mori) . The silkworm variety "Jingsong × Haoyue" was used as experimental material. Choosing similar size and develop-ment of 600 silkworms randomly divided into four groups with each group had three replicates and each repli-cate had 50 silkworms ( half male and half female) . Fifth instar larvae of silkworms in experimental groups ( groups JM1, JM2 and JM3) were fed fresh mulberry leaves painted with 1％, 2％ and 4％ YEP solution,re-spectively, and those in control group were fed fresh mulberry leaves painted with distilled water. The UA con-tent, triglyceride ( TG) content and xanthine oxidase ( XOD) activity in hemolymph of silkworms were detec-ted after feeding with different concentrations of YEP for 3, 4 and 5 days. The results showed that the body weight growth rate of silkworms increased significantly after feeding with different concentrations of YEP for 5 days compared with the control group ( P<0.05) , but no significant differences were found among experimen-tal groups ( P>0.05) , and with the increase of YEP concentration, the body weight growth rate showed a trend of decline. The content of TG in hemolymph of silkworms after feeding with different concentrations of YEP for 5 days was 1.42 to 1.98 times higher than that of control group, and the differences between the control group and the groups JM1 or JM2 were significant ( P<0.05) . The content of UA in hemolymph of silkworms of each group showed a trend of decline with the extension of time. Compared with the 3rd day, the content of UA in hemolymph of silkworms of each group was significantly decreased compared with the 5th day ( P<0.05) . The content of UA in hemolymph of silkworms of each time point showed a trend of increase with the increase of YEP concentration, but the differences were not significant between the control group and the ex-perimental groups ( P>0.05) . The activity of XOD in hemolymph of silkworms of each time point was signifi-cantly higher than that of control group ( P<0.05) , but it was firstly increased and then decreased with the in-crease of YEP concentration. There was a significant or an extremely significant correlation between the content of UA and the activity of XOD in hemolymph of silkworms ( P<0.05 or P<0.01) , and the correlation coeffi-cient ranged from 0.652 to 0.902. It is concluded that feeding a certain concentration of YEP can lead to increa-ses of UA content, TG content and XOD activity in hemolymph, thus affecting the UA metabolism of silk-worms.关键词
家蚕/酵母浸粉/甘油三酯/尿酸代谢Key words
silkworms/yeast extract powder/triglyceride/uric acid metabolism分类
农业科技引用本文复制引用
李娜,靳慧杰,贾漫丽,黄露,谢岩,夏爱华,杨贵明,李季生..酵母浸粉对家蚕血淋巴中甘油三酯含量和尿酸代谢的影响[J].动物营养学报,2018,30(6):2245-2251,7.基金项目
河北省教育厅重点课题(ZD2016044) （ZD2016044）
