本文選題：微量元素 + 生產(chǎn)性能��； 參考：《中國農(nóng)業(yè)科學院》2015年碩士論文

【摘要】：本試驗旨在研究不同水平無機及有機復合微量元素對蛋雞生產(chǎn)性能,蛋品質,微量元素沉積及血漿抗氧化能力的影響。選取990只22周齡的京紅1號蛋雞隨機分為11組,每組6個重復,每個重復15只雞。1組為對照組,2~6組,7~11組飼糧中按NRC(1994)推薦需要量的25%,50%,75%,100%,125%添加不同水平的無機及有機復合微量元素,Mn、Fe、Zn、Se添加水平參照蛋雞NRC(1994)標準,Cu添加水平參照肉雞NRC(1994)標準。試驗期24周。結果:1.不同水平無機及有機復合微量元素對蛋雞生產(chǎn)性能及蛋品質的影響1)試驗1~24周,25%無機復合微量元素組產(chǎn)蛋率最高且在試驗第8和第22周極顯著提高雞蛋的蛋殼強度(P0.01);2)試驗17~24周,25%,50%,100%,125%有機復合微量元素組顯著提高產(chǎn)蛋率(P0.05),極顯著降低料蛋比(P0.01);50%有機復合微量元素組極顯著提高試驗第8周蛋黃顏色及試驗第24周蛋白高度和哈夫單位(P0.01);3)NRC推薦需要量的25%添加水平下,試驗9~16周,有機組產(chǎn)蛋率顯著高于無機組(P0.05);試驗第20周,有機組蛋白高度及哈夫單位極顯著高于無機組(P0.01);NRC推薦需要量的50%添加水平下,試驗第22,24周,有機組蛋白高度極顯著高于無機組(P0.01),哈夫單位顯著高于無機組(P0.05);試驗第24周,有機組蛋白高度及哈夫單位顯著高于無機組(P0.05)。2.不同水平無機及有機復合微量元素對蛋黃及糞便中微量元素含量的影響1)125%無機復合微量元素顯著提高蛋黃中Mn,Cu,Zn的含量(P0.05);75%,100%,125%無機復合微量元素極顯著增加雞糞中Mn,Cu,Zn,Se的含量(P0.01);2)試驗第12周,50%有機復合微量元素顯著增加蛋黃中Cu,Zn,Se的含量(P0.05);75%,100%,125%有機復合微量元素極顯著增加雞糞中Mn,Fe,Cu,Zn的含量(P0.01);3)與無機復合微量元素相比,有機組顯著增加蛋黃中Fe,Cu的含量(P0.05);NRC推薦需要量的75%,125%水平下,無機組雞糞中Mn,Fe,Cu,Zn的含量顯著高于有機組(P0.05)。3.不同水平無機及有機復合微量元素對血漿抗氧化能力的影響1)75%,100%,125%無機復合微量元素極顯著提高血漿T-SOD和GSH-Px活性(P0.01),極顯著降低試驗第16周血漿MDA含量(P0.01),125%無機復合微量元素極顯著提高血漿T-AOC(P0.01);2)添加25%~125%有機復合微量元素極顯著提高血漿T-AOC,T-SOD及GSH-Px活性(P0.01),添加50%~125%有機復合微量元素極顯著降低血漿MDA含量(P0.01);3)NRC推薦需要量的75%水平下,有機組血漿T-AOC,T-SOD及GSH-Px活性,NRC推薦需要量的125%水平下,有機組血漿T-SOD及GSH-Px活性均顯著高于無機組(P0.05)。試驗表明,產(chǎn)蛋期蛋雞飼糧中無機及有機復合微量元素分別以NRC推薦需要量的25%和50%添加效果最佳,能夠保證蛋黃中微量元素含量不減少的同時避免雞糞中微量元素的排泄過量,無機復合微量元素以75%以上,有機復合微量元素以25%,50%添加利于提高血漿的抗氧化能力。在25%和50%水平下有機復合微量元素在產(chǎn)蛋率,蛋白高度和哈夫單位方面優(yōu)于無機復合微量元素;有機組能夠增加蛋黃中Fe與Cu的含量,在75%,125%添加水平下降低雞糞中微量元素的排泄,且對蛋雞的抗氧化能力優(yōu)于無機復合微量元素。
[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.
【學位授予單位】：中國農(nóng)業(yè)科學院
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：S831.5

【引證文獻】

相關會議論文 前1條

1 江書忠;潘中勉;黃飛若;蔣思文;彭健;;有機微量元素和飼料抗氧化劑對肥育豬生長性能、肉品質和抗氧化能力的影響[A];第六次全國飼料營養(yǎng)學術研討會論文集[C];2010年

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本文編號：1941001