种母鸡饲粮不同硒源及添加水平对后代肉鸡生长性能、肉品质、硒沉积和抗氧化功能的影响

发布时间：2018-03-02 20:31

本文选题：硒源　切入点：硒水平　出处：《动物营养学报》2016年12期 　论文类型：期刊论文

【摘要】：本试验旨在研究种母鸡饲粮不同硒源及添加水平对后代肉鸡生长性能、肉品质、硒沉积和抗氧化功能的影响。将540只48周龄的健康岭南黄父母代肉用种母鸡随机分为6个组,每组3个重复,每重复30只鸡。试验采用3(硒源)×2(水平)双因素随机试验设计,饲粮硒源分别为亚硒酸钠(SS)、酵母硒(SY)、硒代蛋氨酸(SM),硒添加水平分别为0.15和0.30 mg/kg(以硒计)。预试期4周,正试期8周。结果表明:1)与SS组相比,SM组显著降低了1~21日龄后代肉鸡的料重比(P0.05);SM和SY组显著提高了1日龄后代肉鸡肝脏、肾脏和肌肉的硒含量以及肾脏过氧化氢酶(CAT)活性(P0.05),显著降低了肝脏丙二醛(MDA)含量(P0.05)。与SY组相比,SM组显著提高了后代肉鸡16 h胸肌的p H和肾脏、肌肉的硒含量(P0.05)。2)0.30 mg/kg组的后代肉鸡肝脏、肾脏和肌肉的硒含量显著高于0.15 mg/kg组(P0.05)。与0.30 mg/kg组相比,0.15 mg/kg组显著提高了后代肉鸡8 h胸肌Hunter a值及p H(P0.05),显著降低了后代肉鸡24、48 h胸肌滴水损失(P0.05),显著提高了1日龄后代肉鸡肝脏谷胱甘肽过氧化物酶、总超氧化物歧化酶(T-SOD)活性和总抗氧化能力(T-AOC)及肾脏T-SOD、CAT活性和T-AOC(P0.05),显著降低了1日龄后代肉鸡肾脏MDA含量(P0.05)。由此可见,在本试验条件下,种母鸡饲粮中添加0.15 mg/kg SM效果最佳。
[Abstract]:The purpose of this study was to study the effects of different selenium sources and supplementation levels on the growth performance, meat quality, selenium deposition and antioxidant function of broilers. 540 healthy Lingnan Yellow broilers aged 48 weeks were randomly divided into 6 groups. There were 3 replicates in each group and 30 chickens in each replica. A 3 (selenium source) 脳 2 (horizontal) double factor randomized trial design was used in the experiment. Dietary selenium sources were sodium selenite (SSS), yeast selenite (SYN), selenomethionine (SMN), and selenium supplementation levels of 0.15 and 0.30 mg / kg (in terms of selenium), respectively. The pretest period was 4 weeks. The results showed that compared with SS group, the feed weight ratio of chicks in SM group was significantly lower than that in control group (P0.05) and SY group significantly increased the liver of 1-day-old broilers. The content of selenium in kidney and muscle and the activity of catalase catalase (CAT) in kidney P0.05A significantly decreased the content of malondialdehyde (MDAA) in liver. Compared with sy group, SM group significantly increased the pH and kidney of pectoralis muscle of broilers at 16 h. The selenium content of muscle and the liver of broilers in the group of P0. 05 and 0. 30 mg/kg. The content of selenium in kidney and muscle was significantly higher than that in 0. 15 mg/kg group (P 0. 05). Compared with 0. 30 mg/kg group, the content of Hunter a of pectoralis muscle and pH value of pectoralis muscle in broilers were significantly increased, and the drop loss of pectoralis muscle of offspring broilers at 24 48 h was decreased significantly, and the value of pectoralis muscle drop was significantly increased in 1st, compared with 0. 30 mg/kg group. Liver glutathione peroxidase (Glutathione peroxidase), Total superoxide dismutase (SOD) activity and total antioxidant activity (T-AOC), T-SOD catalase (cat) activity and T-AOC (P0.05) activity in kidney significantly decreased the content of MDA in the kidney of 1-day-old broiler chickens. It can be seen that the effect of adding 0.15 mg/kg SM to the diet of hens was the best under the experimental conditions.
【作者单位】：浙江大学动物科学学院;
【基金】：国家肉鸡产业技术体系(CARS-42-G19) 国家自然科学基金(31572422)
【分类号】：S831.5

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