| 饲料中不同糖源对杂交鲟幼鱼生长性能、血清生化指标和肌肉营养成分的影响 |
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| 引用本文： | 宋娇,姜海波,姜志强,陈立侨,王庆奎,袁海文,杨家和,姚俊杰.饲料中不同糖源对杂交鲟幼鱼生长性能、血清生化指标和肌肉营养成分的影响[J].大连海洋大学学报,2016(1):58-64. |
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| 作者姓名： | 宋娇 姜海波 姜志强 陈立侨 王庆奎 袁海文 杨家和 姚俊杰 |
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| 作者单位： | 1. 贵州大学 动物科学学院,贵州 贵阳,550025;2. 大连海洋大学，农业部北方海水增养殖重点实验室，辽宁 大连 116023;3. 华东师范大学 生命科学学院,上海,200240;4. 天津农学院 水产科学系,天津,300384 |
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| 基金项目： | 贵州省科学技术基金资助项目(黔科合J字[2013]2096号)，贵州大学引进人才科研项目(贵大人基合字[2012]019号)，国家“十二五”科技支撑计划项目(2012BAD25B00)，国家公益性行业(农业)科研专项(201203065) |
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| 摘 要： | 为探讨不同糖源对鲟鱼生长、饲料利用、血清生化指标和肌肉营养组成的影响,共配制5种含有不同糖源(葡萄糖、蔗糖、糊精、玉米淀粉、小麦淀粉)的等氮、等脂试验饲料,饲养初始体质量为(31.88±1.96)g的杂交鲟Acipenser baerii♀×Acipenser schrenckii♂幼鱼8周。结果表明:各试验组的成活率和日摄食率无显著性差异(P0.05);葡萄糖组终末体质量、增重率、特定生长率和蛋白质沉积率均显著低于其他各组(P0.05),而饲料系数则显著高于其他各组(P0.05);糊精组干物质表观消化率和蛋白质表观消化率均为最高,且显著高于葡萄糖组和蔗糖组(P0.05),但与玉米淀粉组和小麦淀粉组无显著性差异(P0.05);葡萄糖组的血糖、血清胆固醇和血清甘油三酯含量均为最高,其中血糖和血清胆固醇指标显著高于其他各组(P0.05),而血清甘油三酯指标则与蔗糖组无显著性差异(P0.05),但显著高于其他3个试验组(P0.05);糊精组肌糖原含量显著高于其他各组(P0.05),而其余各组间则无显著性差异(P0.05),糊精组肝糖原含量最低,且显著低于葡萄糖组和小麦淀粉组(P0.05);葡萄糖组粗脂肪含量最高,且显著高于其他各组(P0.05),小麦淀粉组粗蛋白质含量最高,且显著高于其他各组(P0.05),但与玉米淀粉组无显著性差异(P0.05)。研究表明,在本试验条件下,玉米淀粉和小麦淀粉更适宜作为杂交鲟幼鱼饲料糖源。
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| 关 键 词： | 杂交鲟 糖源 生长 血清生化指标 肌肉组成 |
Effects of dietary carbohydrate sources on growth,feed utilization and haematological parameters of juvenile hybrid sturgeon Acipenser baeri ♀× A. schrenckii ♂ |
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| Abstract: | An 8-week feeding trial was conducted to investigate the effects of different carbohydrate sources on growth, feed utilization, haematological parameters and muscle composition of juvenile hybrid sturgeon Acipenser baeri♀×A. schrenckii ♂(initial weight, 31. 88 g±1. 96 g). In the experiment, the juvenile hybrid sturgeon was fed five experimental diets containing 20% of glucose, sucrose, dextrin, corn starch and wheat starch. The results showed that there were no significant differences in survival rate and daily food intake rate in the hybrids fed the di-ets containing different carbohydrate sources ( P>0 . 05 ) . The juvenile hybrid sturgeon fed the diets containing glu-cose had significantly lower final body weight, weight gain rate, specific growth rate and protein deposition rate and higher food conversion ratio than the juveniles fed the control diet ( P<0 . 05 ) . The maximal apparent digestibility of dry matter and protein was observed in the hybrids fed the diets containing dextrin, significantly higher than that in the hybrids fed the diets containing glucose and sucrose groups (P<0. 05),without significantly different from the hybrids fed the diets containing corn starch and wheat starch ( P>0 . 05 ) . There was significantly higher serum glu-cose level in the hybrids fed the diets containing glucose than that in the others, without significant differences be-tween sucrose, dextrin and corn starch groups (P>0. 05),in which there was significantly higher than in the wheat starch group ( P<0 . 05 ) . The maximal levels of serum triglyceride and total cholesterol were found in the hybrids in glucose group, significantly higher triglyceride level than in the dextrin, corn starch and wheat starch groups ( P<0 . 05 ) , and significantly higher total cholesterol level than in other groups ( P<0 . 05 ) . The maximal muscular gly-cogen content was in the hybrids in dextrin group ( P<0 . 05 ) , without significant difference in other groups ( P>0. 05). However, the minimal liver glycogen content was observed in dextrin group, significantly lower than in the hybrids in glucose and wheat starch groups ( P<0 . 05 ) . There was the maximal crude lipid content in the hybrids fed the diet containing glucose, significantly higher than that in the other groups (P<0. 05). The maximal crude protein level was found in the hybrids in wheat starch group, significantly higher than in the other groups ( P<0 . 05 ) except for corn starch group ( P>0 . 05 ) . The findings indicated that corn starch and wheat starch were the optimal dietary carbohydrate sources for juvenile hybrid sturgeon under the conditions in present experiment. |
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| Keywords: | hybrid sturgeon carbohydrate source growth haematological parameter muscle composition |
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