论文部分内容阅读
试验选用1 260尾初始体质量为(44.34±1.58)g的津新鲤,随机分为6组,每组3个重复,每重复70尾鱼。6组饲料分别添加豆油、鸡油、玉米油、棕榈油、菜籽油和棉籽油。饲养8周后探讨饲料中不同脂肪源对津新鲤生长、消化及生理生化指标的影响。结果表明:日粮3组的相对增重率、特定生长率、饲料系数及蛋白效率显著高于其他5组(P<0.05),且饵料系数最低。不同脂肪源饲料对部分组织消化酶活性存在差别,后肠中脂肪酶日粮3组显著高于其他各组(P<0.05);肝胰中日粮3组最高;日粮3组蛋白酶活性最高。日粮3组肝胰超氧化物歧化酶(SOD)、总抗氧化能力(T-AOC)和谷胱甘肽(GSH)活力显著高于其他各组(P<0.05);肝胰天冬氨酸转氨酶(GOT)及丙氨酸氨基转移酶(GPT)活性日粮5组最低,日粮1组最高,各组间差别较大(P<0.05);不同脂肪源饲料对三酰甘油、总胆固醇及高低密度脂蛋白存在差异。总之,玉米油可作为津新鲤优质脂肪源。
A total of 1260 Jinxin carps with initial body weight of (44.34 ± 1.58) g were randomly divided into 6 groups with 3 replicates in each group, with 70 fish per replicate. 6 groups of feed were added soybean oil, chicken oil, corn oil, palm oil, rapeseed oil and cottonseed oil. After feeding for 8 weeks, the effects of different fat sources on the growth, digestion and physiological and biochemical indexes of Jinxin carp were studied. The results showed that the relative weight gain rate, specific growth rate, feed conversion coefficient and protein efficiency of the three dietary groups were significantly higher than those of the other five groups (P <0.05), and the lowest feed conversion coefficient. The activities of digestive enzymes in some tissues of different fat sources were different, the content of lipase in the hindgut was significantly higher in three groups than in other groups (P <0.05), the highest in three groups of hepatopancreas and the highest in three groups . The activities of hepatopancreas superoxide dismutase (SOD), total antioxidant capacity (T-AOC) and glutathione (GSH) in dietary 3 groups were significantly higher than those in other groups (P <0.05) The activities of GOT and GPT in diet group 5 were the lowest, the highest in diet group 1, and the differences among groups were significant (P <0.05). The effects of different fat sources on triglyceride, Cholesterol and high-density lipoprotein differences exist. In short, corn oil can be used as high-quality fresh fat carp source.