本文關(guān)鍵詞： 飼用型四倍體刺槐 青貯 發(fā)酵品質(zhì) 青貯方法　出處：《西北農(nóng)林科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：為了克服飼料型四倍體刺槐新鮮葉片水分含量相對較高、可溶性碳水化合物含量低、緩沖能力高對其青貯發(fā)酵品質(zhì)的不利影響,本研究以新鮮飼用型四倍體刺槐葉為原料,按照減少水分含量(陰干)、采用發(fā)酵促進劑(添加碳水化合物——麩皮和蔗糖)、采用發(fā)酵抑制劑(添加甲酸甲醛混合液)共3條技術(shù)思路,采用單因素和多因素組合技術(shù)措施共設(shè)8個處理組,對四倍體刺槐葉青貯飼料的發(fā)酵品質(zhì)進行比較分析,以期對四倍體刺槐幼嫩枝葉青貯技術(shù)的推廣提供基礎(chǔ)資料,試驗結(jié)論表明:(1)本研究選用的單純減少水分含量、單純使用發(fā)酵促進劑——蔗糖和單純使用發(fā)酵抑制劑——甲酸甲醛混合物3條技術(shù)路線,均可一定程度改善青貯飼料的發(fā)酵品質(zhì),其中單純減少水分含量和單純使用發(fā)酵促進劑——蔗糖對改善氨氮占總氮比值均有不利影響,3者對于改善青貯發(fā)酵品質(zhì)的作用效果為發(fā)酵抑制劑發(fā)酵促進劑降低發(fā)酵底物水分含量。(2)單純使用發(fā)酵促進劑——麩皮處理,從表面看屬于單一因素處理,但其作用的實質(zhì)是發(fā)揮了減少水分含量與提高可溶性糖兩因素的共同作用,因而其效果遠優(yōu)于單一因素處理,故也可從作用效果角度將其視為二因素的組合處理。(3)多因素的組合處理,在改善青貯發(fā)酵品質(zhì)方面總體表現(xiàn)為具有一定的“組合效應(yīng)”,其對于改善青貯發(fā)酵品質(zhì)的作用效果為三因素組合二因素組合單因素處理。
[Abstract]:In order to overcome the adverse effects of relatively high water content and low soluble carbohydrate content in fresh leaves of forage tetraploid Robinia pseudoacacia and high buffering capacity on the silage fermentation quality of Robinia pseudoacacia L. In this study, fresh tetraploid Robinia pseudoacacia leaves were used as raw materials, according to the reduction of water content (dry, fermenting accelerator (add carbohydrate-bran and sucrose)). The fermentation inhibitor (formic acid formaldehyde mixed solution) was used in three technical ideas, and 8 treatment groups were set up by single factor and multi-factor combination technique. The fermentation quality of tetraploid Robinia pseudoacacia leaf silage was compared and analyzed in order to provide basic data for popularizing the silage technology of young branches and leaves of tetraploid Robinia pseudoacacia. The results showed that: (1) in this study, the water content was reduced only, the mixture of -sucrose and formic acid formaldehyde was used as the only fermentation accelerator and the mixture of formic acid and formaldehyde was used only. All of them could improve the fermentation quality of silage to some extent, among which only reducing water content and using only fermentation accelerator-sucrose had adverse effects on improving the ratio of ammonia to total nitrogen. 3) the effect of fermentation inhibitor on improving the fermentation quality of silage was as follows: fermentation inhibitor, fermentation accelerator, reducing the moisture content of fermentation substrate, and only using fermentation accelerator-bran treatment. On the surface, it belongs to a single factor treatment, but the essence of its action is to play the role of reducing water content and increasing soluble sugar, so its effect is far better than that of single factor treatment. Therefore, it can also be regarded as a combination treatment of two factors from the point of view of effect. The combination treatment of multiple factors has a certain "combination effect" in improving the fermentation quality of silage. Its effect on improving fermentation quality of silage was three factors combination, two factors combination and single factor treatment.
【學(xué)位授予單位】：西北農(nóng)林科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S816.53

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本文編號：1462223