【摘要】：本研究由二個(gè)試驗(yàn)構(gòu)成,分別探討日糧中添加不同水平的杜仲素對(duì)斷奶仔豬生產(chǎn)性能、抗腹瀉能力和經(jīng)濟(jì)效益的影響;杜仲素對(duì)斷奶仔豬免疫功能的影響及斷奶仔豬日糧中杜仲素的適宜添加量,為杜仲素在斷奶仔豬中開(kāi)發(fā)應(yīng)用提供理論依據(jù)。試驗(yàn)一:本試驗(yàn)選取35±2日齡,體重在9kg左右的杜×長(zhǎng)×大三元仔豬120頭。試驗(yàn)分成4個(gè)處組,每組3個(gè)重復(fù),每個(gè)重復(fù)10頭,對(duì)照組不添加杜仲素,試驗(yàn)1組、試驗(yàn)2組、試驗(yàn)3組在日糧中分別添加 1000mg/kg、1500mg/kg 和 2000mg/kg 杜仲素。結(jié)果表明:日糧中添加杜仲素可以提高斷奶仔豬的日增重、降低料肉比、降低腹瀉率、提高經(jīng)濟(jì)效益。試驗(yàn)2組可以顯著提高日增重(P0.05),顯著降低斷奶仔豬腹瀉率。本試驗(yàn)發(fā)現(xiàn)添加1500mg/kg的杜仲素可以達(dá)到較好效果。試驗(yàn)二:本試驗(yàn)選取35 土2日齡左右,體重在8kg左右的72頭杜長(zhǎng)大三元仔豬,試驗(yàn)分成4個(gè)處組,每組3個(gè)重復(fù),每個(gè)重復(fù)6頭,對(duì)照組不添加杜仲素,試驗(yàn)1組、試驗(yàn)2組、試驗(yàn)3組在日糧中分別添加1000mg/kg、1500mg/kg和2000mg/kg杜仲素。分別在試驗(yàn)前一天及試驗(yàn)第45天進(jìn)行靜脈采血,分析血液指標(biāo)。結(jié)果表明:①杜仲素添加組的豬瘟抗體阻斷率高于對(duì)照組,試驗(yàn)2組顯著高于對(duì)照組(P0.05),隨著杜仲素添加量的增加試驗(yàn)3組相對(duì)試驗(yàn)2組沒(méi)有顯著改善。②日糧中添加杜仲素顯著提高試驗(yàn)2組血清中谷胱甘肽過(guò)氧化物酶(GSH-Px)的活性(P0.05),顯著降低試驗(yàn)2組、試驗(yàn)3組血清中的MDA(P0.05),達(dá)到抗氧化效果。試驗(yàn)2組效果最明顯。③試驗(yàn)2組、3組通過(guò)添加杜仲素顯著提高血清中免疫球蛋白G(IgG)(P0.05)含量,試驗(yàn)2組效果最明顯。④試驗(yàn)2組、3組通過(guò)添加杜仲素顯著提高血清中總蛋白含量,試驗(yàn)2組顯著降低堿性磷酸酶活性及尿素氮水平。各試驗(yàn)組間的丙氨酸氨基轉(zhuǎn)移酶(ALT)和天門(mén)冬氨酸氨基轉(zhuǎn)移酶(AST)活性,白蛋白(ALB)和葡萄糖(GLU)含量均無(wú)顯著差異(P0.05)。
[Abstract]:Two experiments were conducted to investigate the effects of different levels of eucommiol on weaning piglets' performance, anti-diarrhea ability and economic benefit. The effect of Eucommiol on the immune function of weaned piglets and the appropriate amount of eucommiol in weaning piglets' diets provided a theoretical basis for the development and application of eucommiol in weaning piglets. Experiment 1: 120 DU 脳 Chang 脳 Da San piglets, 35 鹵2 days old and weighing about 9kg, were selected in this experiment. The experiment was divided into 4 groups, 3 repeats in each group, 10 repeats in each group. The control group was not supplemented with Eucommiol, while the first group, the second group and the experimental group 3 were fed diets supplemented with 1 000 mg / kg KG 1 500 mg / kg and 1 000 mg / kg KG / kg and 2000mg/kg eucommiol, respectively. The results showed that the addition of Eucommia ulmoides in diet could increase the daily gain of weaned piglets, reduce the feed / meat ratio, reduce the diarrhea rate and increase the economic benefit. Group 2 significantly increased daily gain (P0.05) and significantly reduced diarrhea rate of weaned piglets. It was found that the addition of 1500mg/kg to Eucommia ulmoides could achieve better results. Experiment 2: 72 Dudongshanyuan piglets, about 35 days old and weighing about 8kg, were divided into 4 groups, 3 replicates in each group, 6 piglets in each group, the control group was not supplemented with eucommiol, group 1 was treated with eucommiol, and group 2 was treated with eucommiol. Group 3 was fed diets supplemented with 1 000 mg / kg 1 500 mg / kg and 1 000 mg / kg 2000mg/kg eucommiol respectively. Venous blood samples were collected one day before the trial and 45 days after the trial, and the blood indexes were analyzed. The results showed that: 1 the blocking rate of classical swine fever antibody in the eucommia group was higher than that in the control group, and that in the experimental group 2 was significantly higher than that in the control group (P0.05). With the increase of the amount of Eucommia ulmoides, there was no significant improvement in the treatment group 3 compared with the experimental group 2. 2 the addition of Eucommiol to the diet significantly increased the activity of glutathione peroxidase (GSH-Px) in the serum of the experimental group 2 (P0.05). The level of MDA in serum of test group 2 and test 3 was significantly decreased (P0.05), and the effect of antioxidation was achieved. The effect of test 2 was the most obvious. 3 the content of immunoglobulin G (IgG) (0.05) in serum was significantly increased in group 3 by adding Eucommia ulmoides. 4 the effect of test 2 was the most obvious. 4 the effect of test 2 was the most obvious. The content of serum total protein was significantly increased by adding Eucommiol, while the activity of alkaline phosphatase and the level of urea nitrogen were significantly decreased in group 2. The activities of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), albumin (ALB) and glucose (GLU) were not significantly different between the two groups (P0.05).
【學(xué)位授予單位】：福建農(nóng)林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：S828.5

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