【摘要】：本研究以羅斯308肉雞為研究對象,試驗(yàn)分兩批次進(jìn)行,研究在低、高豆粕添加量的情況下,日糧中添加β-甘露聚糖酶對白羽肉雞生產(chǎn)性能及腸道健康的影響。試驗(yàn)一為低豆粕日糧,選取1日齡羅斯308肉雞1440只,隨機(jī)分為4個處理,每個處理設(shè)12個重復(fù),每個重復(fù)30只雞,分別飼喂4種不同處理的日糧:即基礎(chǔ)日糧、基礎(chǔ)日糧添加甘露聚糖酶(500g/t)、低能量日糧、低能量日糧添加甘露聚糖酶(500g/t),試驗(yàn)期分別為42天。試驗(yàn)二為高豆粕日糧,選取1日齡羅斯308肉雞1080只,隨機(jī)分為4個處理,每個處理設(shè)10個重復(fù),每個重復(fù)27只雞,分別飼喂4種不同處理的日糧:即基礎(chǔ)日糧、基礎(chǔ)日糧添加甘露聚糖酶(500g/t)、低能量日糧、低能量日糧添加甘露聚糖酶(500g/t),試驗(yàn)期33天。研究結(jié)果表明:低豆粕日糧添加β-甘露聚糖酶對的肉雞的生產(chǎn)性能沒有起到顯著性的促進(jìn)作用。低豆粕低能量日糧添加β-甘露聚糖酶后反而增加了料肉比;高豆粕日糧添加β-甘露聚糖酶對的肉雞的生產(chǎn)性能有一定的改善作用;低豆粕日糧添加β-甘露聚糖酶能顯著降低十二指腸的重量指數(shù),高豆粕低能量日糧添加β-甘露聚糖酶能顯著性降低回腸的重量指數(shù);低豆粕低能量日糧添加β-甘露聚糖酶組較基礎(chǔ)日糧組能顯著降低血液中尿素氮、乳酸脫氫酶的含量;日糧添加β-甘露聚糖酶降低了腸道淀粉酶活性;低豆粕日糧能量降低之后,添加β-甘露聚糖酶顯著性增加十二指腸和回腸的長度;高豆粕日糧添加β-甘露聚糖酶顯著提高了腹脂率。以上研究表明:飼糧中添加β-甘露聚糖酶可以影響肉雞腸道發(fā)育,促進(jìn)機(jī)體內(nèi)蛋白質(zhì)的沉積,在一定程度上緩解外界環(huán)境對肉雞的應(yīng)激。
[Abstract]:In this study, Roth308 broiler was divided into two batches to study the effects of 尾 -mannanase supplementation in diet on the performance and intestinal health of white broilers under the condition of low and high soybean meal supplementation. Experiment 1 was a low soybean meal diet. 1440 1-day-old Roth308 broilers were randomly divided into 4 treatments with 12 replicates in each treatment and 30 chickens in each treatment. The diets were fed with four different treatments: basal diet. Mannanase (500g/t) was added to basal diet and mannanase (500g/t) was added to low energy diet for 42 days. The second experiment was high soybean meal diet. 1080 1-day-old Roth308 broilers were randomly divided into 4 treatments, with 10 replicates in each treatment and 27 chickens in each treatment. The diets were fed with four different treatments: basal diet. Mannanase (500g/t) was added to basal diet and mannanase (500g/t) was added to low energy diet for 33 days. The results showed that the low soybean meal diet supplemented with 尾 -mannanase did not play a significant role in promoting the performance of broilers. Adding 尾 -mannanase to low soybean meal and low energy diet increased feed / meat ratio, and high soybean meal diet supplemented with 尾 -mannanase could improve the performance of broiler. The addition of 尾 -mannanase to low soybean meal diet significantly decreased the weight index of duodenum, and 尾 -mannanase to high soybean meal and low energy diet significantly decreased the weight index of ileum. The contents of blood urea nitrogen and lactate dehydrogenase in low soybean meal and low energy diet supplemented with 尾 -mannanase were significantly lower than those in basal diet, and the activity of intestinal amylase was decreased in diet supplemented with 尾 -mannanase. Addition of 尾 -mannanase significantly increased the length of duodenum and ileum, and 尾 -mannanase significantly increased abdominal fat rate in high soybean meal diet. The results showed that 尾 -mannanase in diet could affect the intestinal development of broilers, promote the accumulation of protein in the body, and alleviate the stress caused by the external environment to the broilers to a certain extent.
【學(xué)位授予單位】：山東農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S831.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李麗;宋英今;;β-甘露聚糖酶對肉仔雞生長及免疫功能的影響[J];中國家禽;2013年14期

2 林金法;李曉明;董金格;唐飛江;鄒曉庭;;和美酵素對肉仔雞生長性能的影響[J];飼料研究;2011年07期

3 蔣桂韜;張民;張旭;王向榮;張建華;戴求仲;;在復(fù)合酶中添加β-甘露聚糖酶對櫻桃谷肉鴨生長性能的影響[J];飼料工業(yè);2010年20期

4 王德蓉;潘曉;;飼料中非淀粉多糖的抗?fàn)I養(yǎng)作用及相關(guān)酶制劑的應(yīng)用[J];南方農(nóng)業(yè);2010年05期

5 張華琦;楊偉春;;非淀粉多糖酶的作用機(jī)制及在家禽生產(chǎn)中的應(yīng)用[J];飼料研究;2009年11期

6 李學(xué)儉;潘樹德;邊連全;張飛;董衛(wèi)國;;β-甘露聚糖酶對斷乳仔豬生產(chǎn)性能的影響[J];黑龍江畜牧獸醫(yī);2008年12期

7 張芹;毛勝勇;朱偉云;;β-甘露聚糖酶在動物生產(chǎn)中的應(yīng)用[J];畜牧與獸醫(yī);2008年02期

8 蔡發(fā)國;曹云鶴;陳權(quán)軍;;新型酶制劑——β-甘露聚糖酶的研究進(jìn)展[J];飼料研究;2007年11期

9 潘俊福;徐春厚;;β-甘露聚糖酶的營養(yǎng)免疫功能及其在動物生產(chǎn)中的應(yīng)用[J];湖南飼料;2007年04期

10 王佳麗;楊群輝;;非淀粉多糖及其抗?fàn)I養(yǎng)作用[J];畜牧與飼料科學(xué);2007年04期

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