首页|饲料中蛋白质与脂肪含量对淡水石斑鱼生理生化指标的影响

饲料中蛋白质与脂肪含量对淡水石斑鱼生理生化指标的影响

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为研究饲料中不同水平蛋白质和脂肪对淡水石斑鱼生理生化指标的影响,采用配置蛋白质水平为 40%、44%、48%和52%,脂肪水平为 8%、12%和 16%的饲料对 450 尾受试淡水石斑鱼投喂56d的方法,对其血液和肝脏的抗氧化指标和血液的生化指标进行测定.结果表明:在血液抗氧化指标分析中,48P/8F组中GSH-Px值显著高于其他组(P<0.05),各组间T-AOC差异不显著(P>0.05);肝脏抗氧化指标中,48P/12F组中CAT值显著高于其余各组(P<0.05),各组间T-AOC差异不显著(P>0.05);血液生理生化指标中,40P/8F组和 52P/8F组TG显著高于 52P/16F组(P<0.05),48P/8F组AST值最小,显著低于 44P/16F组和48P/12F组(P<0.05),且 48P/8F组ALT值显著低于52P各组ALT值(P<0.05).综上,48%蛋白质与 8%脂肪含量为淡水石斑鱼适宜饲料配比,能够增强鱼体抗氧化酶活力,提高其抗氧化能力.
Effects of Dietary Protein and Fat Contents on Physiological and Biochemical Indexes of Cichlasoma man-aguense
In order to study the effects of different levels of protein and fat in diets on physiological and biochemical indexes of Cich-lasoma managuense,450 fish were fed diets with protein levels of 40%,44%,48%and 52%and fat levels of 8%,12%and 16%for 56 days.The antioxidant and biochemical indexes of blood and liver were measured.The results showed that,in the analysis of blood antioxidant indexes,the GSH-Px value of 48P/8F group was significantly higher than that of other groups(P<0.05).There was no sig-nificant difference in T-AOC among all groups(P>0.05).Among liver antioxidant indexes,CAT value in 48P/12F group was signifi-cantly higher than that in other groups(P<0.05)and there was no significant difference in T-AOC among all groups(P>0.05).In blood physiological and biochemical indexes,the TG in 40P/8F and 52P/8F groups was significantly higher than that in 52P/16F group(P<0.05).The AST value in 48P/8F group was the lowest,which was significantly lower than that in 44P/16F and 48P/12F groups(P<0.05),and the ALT value in 48P/8F group was significantly lower than that in 52P groups(P<0.05).In conclusion,this study proves that 48%protein and 8%fat content is the appropriate dietary ratio for Cichlasoma managuense,which can enhance the antioxidant enzyme activity and improve the antioxidant capacity of the fish.

Cichlasoma managuenseprotein contentfat contentantioxidant capacitybiochemical index

孙晓旺、郑艳坤、马林、尤宏争、毕相东、孙学亮

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天津市水产研究所,天津 300221

天津市农业发展服务中心,天津 300192

天津农学院,天津 300384

淡水石斑鱼 蛋白质含量 脂肪含量 抗氧化能力 生化指标

天津市科技计划项目天津市科技计划项目天津市科技计划项目甘肃省科技计划项目甘肃省科技计划项目

22ZYCGSN0024022ZYCGSN0005023ZYCGSN0035022CX8NE20823CXND0002

2023

天津农业科学
天津农业科学院信息研究所

天津农业科学

影响因子:0.705
ISSN:1006-6500
年,卷(期):2023.29(12)
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