不同发酵来源的木聚糖酶对芙蓉鲫幼鱼消化酶及部分血液指标的影响  

Effects of different kinds of fermented xylanase on activities of digestive enzymes and some blood indicators in intestinal of Furong crucian

作　　者：田芊芊[1] 徐树德[2] 胡毅[1] 李昭林[1] 赵清海[2] 

机构地区：[1]湖南农业大学,湖南长沙410128 [2]广东溢多利生物科技股份有限公司,广东珠海519060

出　　处：《中国饲料》2016年第9期31-33,38,共4页China Feed

摘　　要：为研究不同来源木聚糖酶对初始体重为（4.02±0.02）g的芙蓉鲫幼鱼部分血液指标和消化酶活性的影响,以基础饲料为对照组,在基础饲料中分别添加10g/kg里氏木霉液态深层发酵生产的木聚糖酶（里氏木霉组）、10 g/kg黑曲霉固态发酵生产的木聚糖酶（黑曲霉组）、10 g/kg毕赤酵母液态深层发酵生产的木聚糖酶（毕赤酵母组）,配制4种等氮等脂饲料,饲喂8周。结果表明：（1）与对照组相比,黑曲霉组、毕赤酵母组血糖含量分别提高26.36%、62.57%,甘油三酯含量分别提高189.53%、136.05%（P〈0.05）;三个试验组淀粉酶活力提高19.40%~31.69%（P〈0.05）;里氏木霉组脂肪酶活力提高155.21%（P〈0.05）。综上所述,饲料中添加不同发酵来源的木聚糖酶可提高芙蓉鲫的消化能力,能提供更多的能量,有利于提高饲料利用率,且里氏木霉组效果最佳。A8 weeks feeding experiment was conducted to investigate the effect of adding different sources of xylanase on part of blood indicators,digestive enzymes of furong crucian with initial bodyweight of （4.02±0.02）g.The basaldiet was set as the control group.All the other groups were supplemented with 10 g/kg xylanase from liquid submerged fermentation of trichoderma viride,10 g/kg xylanase of aspergillus niger pure solid fermentation production,10 g/kg xylanaseof pichia liquid submerged fermentation production.The results showed that the blood glucose of furong crucian in the aspergillus niger group and the pichia pastoris group was 26.36%,62.57% higher than that of control group （P〈0.05）;Triglyceride of furong crucian in the aspergillus niger group and pichia pastoris group was 189.53%,136.05% higer thanthat of control group （P〈0.05）;.The total cholesterol of furong crucian in the trichoderma reesei group and pichia pastorisgroup was 13.70%,16.30% lower than that of control group （P〈0.05）;.Compared with the control group,blood urea nitrogen of furong crucian in the trichoderma reesei group was improved by 33.26%,but that of aspergillus niger group andpichia pastoris group was decreased by 41.19%,46.70%（P〈0.05）.Compared with the control group,amylase of furongcrucian in all experiment groups was improved 19.40% -31.69%,the lipase activity of the trichoderma reesei group wasimproved 155.21%（P〈0.05）.These results suggested that the feed supplemented with xylanase significantly improved thedigestive ability of furong crucian,provided more energy,improved feed utilization rate.The aspergillus niger group was better than others.

关 键 词：木聚糖酶 消化酶 芙蓉鲫 血液指标 

分 类 号：S963[农业科学—水产养殖]