不同水平的无机及有机复合微量元素对蛋鸡生产性能、蛋品质及血液生化指标的影响

发布时间：2018-05-27 07:16

本文选题：微量元素 + 生产性能　；参考：《中国农业科学院》2015年硕士论文

【摘要】：本试验旨在研究不同水平无机及有机复合微量元素对蛋鸡生产性能,蛋品质,微量元素沉积及血浆抗氧化能力的影响。选取990只22周龄的京红1号蛋鸡随机分为11组,每组6个重复,每个重复15只鸡。1组为对照组,2~6组,7~11组饲粮中按NRC(1994)推荐需要量的25%,50%,75%,100%,125%添加不同水平的无机及有机复合微量元素,Mn、Fe、Zn、Se添加水平参照蛋鸡NRC(1994)标准,Cu添加水平参照肉鸡NRC(1994)标准。试验期24周。结果:1.不同水平无机及有机复合微量元素对蛋鸡生产性能及蛋品质的影响1)试验1~24周,25%无机复合微量元素组产蛋率最高且在试验第8和第22周极显著提高鸡蛋的蛋壳强度(P0.01);2)试验17~24周,25%,50%,100%,125%有机复合微量元素组显著提高产蛋率(P0.05),极显著降低料蛋比(P0.01);50%有机复合微量元素组极显著提高试验第8周蛋黄颜色及试验第24周蛋白高度和哈夫单位(P0.01);3)NRC推荐需要量的25%添加水平下,试验9~16周,有机组产蛋率显著高于无机组(P0.05);试验第20周,有机组蛋白高度及哈夫单位极显著高于无机组(P0.01);NRC推荐需要量的50%添加水平下,试验第22,24周,有机组蛋白高度极显著高于无机组(P0.01),哈夫单位显著高于无机组(P0.05);试验第24周,有机组蛋白高度及哈夫单位显著高于无机组(P0.05)。2.不同水平无机及有机复合微量元素对蛋黄及粪便中微量元素含量的影响1)125%无机复合微量元素显著提高蛋黄中Mn,Cu,Zn的含量(P0.05);75%,100%,125%无机复合微量元素极显著增加鸡粪中Mn,Cu,Zn,Se的含量(P0.01);2)试验第12周,50%有机复合微量元素显著增加蛋黄中Cu,Zn,Se的含量(P0.05);75%,100%,125%有机复合微量元素极显著增加鸡粪中Mn,Fe,Cu,Zn的含量(P0.01);3)与无机复合微量元素相比,有机组显著增加蛋黄中Fe,Cu的含量(P0.05);NRC推荐需要量的75%,125%水平下,无机组鸡粪中Mn,Fe,Cu,Zn的含量显著高于有机组(P0.05)。3.不同水平无机及有机复合微量元素对血浆抗氧化能力的影响1)75%,100%,125%无机复合微量元素极显著提高血浆T-SOD和GSH-Px活性(P0.01),极显著降低试验第16周血浆MDA含量(P0.01),125%无机复合微量元素极显著提高血浆T-AOC(P0.01);2)添加25%~125%有机复合微量元素极显著提高血浆T-AOC,T-SOD及GSH-Px活性(P0.01),添加50%~125%有机复合微量元素极显著降低血浆MDA含量(P0.01);3)NRC推荐需要量的75%水平下,有机组血浆T-AOC,T-SOD及GSH-Px活性,NRC推荐需要量的125%水平下,有机组血浆T-SOD及GSH-Px活性均显著高于无机组(P0.05)。试验表明,产蛋期蛋鸡饲粮中无机及有机复合微量元素分别以NRC推荐需要量的25%和50%添加效果最佳,能够保证蛋黄中微量元素含量不减少的同时避免鸡粪中微量元素的排泄过量,无机复合微量元素以75%以上,有机复合微量元素以25%,50%添加利于提高血浆的抗氧化能力。在25%和50%水平下有机复合微量元素在产蛋率,蛋白高度和哈夫单位方面优于无机复合微量元素;有机组能够增加蛋黄中Fe与Cu的含量,在75%,125%添加水平下降低鸡粪中微量元素的排泄,且对蛋鸡的抗氧化能力优于无机复合微量元素。
[Abstract]:The purpose of this study was to study the effects of different inorganic and organic compound trace elements on the production performance, egg quality, microelement deposition and plasma antioxidant capacity of layers. 990 22 weeks old Jinghong 1 laying hens were randomly divided into 11 groups, each of which was 6 repeated, and each repeated 15 chicken.1 group was the control group, the 2~6 group and the 7~11 group were treated with NRC (1994). 25%, 50%, 75%, 100%, 125% added different levels of inorganic and organic compound trace elements, Mn, Fe, Zn, and Se were added to the NRC (1994) standard of laying hens. Cu addition level was referred to NRC (1994) standard for broilers. The experimental period was 24 weeks. Results: 1. the effects of different levels of no machine and organic compound trace elements on the production performance and egg quality of laying hens 1 In the test 1~24 weeks, the 25% inorganic compound microelement group had the highest egg production rate and significantly increased egg shell strength (P0.01) in the eighth and twenty-second weeks; 2) 17~24 weeks, 25%, 50%, 100%, 125% organic compound trace elements significantly increased the egg production rate (P0.05), and significantly decreased the ratio of egg to egg (P0.01); 50% organic compound microelement group was significantly improved. Eighth weeks of egg yolk color and test twenty-fourth weeks protein height and Hough unit (P0.01); 3) NRC recommended required amount of 25% addition level, test 9~16 weeks, the organic group egg production rate is significantly higher than the non unit (P0.05); the test twentieth weeks, the unit protein height and Hough unit is significantly higher than the non unit (P0.01); NRC recommended requirements of the 50% addition level At week 22,24, the height of the unit protein was significantly higher than that of the non unit (P0.01), and the Hough unit was significantly higher than that of the non unit (P0.05). In the twenty-fourth week test, the height of the unit protein and the Hough unit were significantly higher than that of the non unit (P0.05).2.. The effect of inorganic and organic compound trace elements on the content of trace elements in the yolk and feces was 1) 125%. Inorganic compound trace elements significantly increased the content of Mn, Cu and Zn (P0.05) in yolk; 75%, 100%, 125% inorganic compound trace elements significantly increased Mn, Cu, Zn, Se content (P0.01) in chicken manure for Twelfth weeks, and 50% organic compound trace elements significantly increased Cu, Zn, Se content in egg yolk; 75%, 100%, 125% organic compound trace elements were significantly increased. The content of Mn, Fe, Cu and Zn (P0.01) in chicken manure (P0.01); 3) compared with the inorganic compound trace elements, the unit significantly increased the Fe and Cu content in the yolk (P0.05), NRC recommended the amount of 75%, 125% level, the content of Mn, Fe, Cu, in the inorganic group of chicken manure was significantly higher than that of the organic-inorganic and organic compound trace elements. 1) 75%, 100%, 125% inorganic compound trace elements significantly increased plasma T-SOD and GSH-Px activity (P0.01), significantly reduced plasma MDA content (P0.01) for sixteenth weeks, and 125% inorganic compound trace elements significantly increased plasma T-AOC (P0.01); 2) adding 25%~ 125% organic compound trace elements significantly increased plasma T-AOC, T-SOD and GSH-Px. The activity (P0.01), adding 50%~125% organic compound trace elements significantly reduced the plasma MDA content (P0.01); 3) NRC recommended the required amount of 75% levels, the unit plasma T-AOC, T-SOD and GSH-Px activity, NRC recommended 125% levels, the unit plasma T-SOD and GSH-Px activity were significantly higher than the non unit (P0.05). Experiments showed that laying laying hens The inorganic and organic compound trace elements in the diet were best added with the recommended amount of 25% and 50% NRC, which could ensure that the content of trace elements in egg yolk could not be reduced and the excretion of trace elements in chicken manure was avoided. The inorganic compound trace elements were more than 75%, and the organic compound trace elements were added to 25% and 50% to improve the plasma. Antioxidant capacity. At 25% and 50% levels, the organic compound trace elements are superior to inorganic compound trace elements in egg production rate, protein height and Hough unit. The units can increase the content of Fe and Cu in egg yolk, and decrease the excretion of trace elements in low chicken manure at 75%, 125%, and the antioxidant capacity of the layers is better than the inorganic compound microelement. Quantity element.
【学位授予单位】：中国农业科学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S831.5

【引证文献】