氨基酸副产物的添加对饲料发酵品质及消化率的影响研究

目前，在新疆农牧业相结合是脱贫必经之路。在农业地区农作物秸秆资源丰富，但缺乏高品质青贮生产技术，秸秆资源利用率低。本室对19家养殖户调研发现，在青贮生产中存在发酵周期长、发霉严重、饲料发酵品质及利用率低等问题。这些问题因拌入的乳酸菌不适应新疆自然条件及原料可溶性碳和氮含量低而引起的。因此本地高效饲用菌的筛选和补足碳氮源是解决问题的关键。本研究室已筛选出本地乳酸菌和纤维素分解菌，成补足原料中可溶性碳和氮、生产高品质青贮的关键。在国内外用糖废液来补足碳氮，而新疆该资源有限，但有丰富的氨基酸副产物（ABP）。ABP是氨基酸发酵液经提取氨基酸后的产量高、pH低、碳和氮含量高的废水。目前ABP除部分制化肥外其余排放环境引起污染。本室的ABP对饲用菌生长的影响实验证明，其对饲用菌生长有促进作用，为本项目提供科学依据。若本项目获资助则将ABP转化为饲用资源，可促进农牧业发展，有重要的经济和环保意义。

At present, the combination of agriculture and animal husbandry in Xinjiang is the only way to get rid of poverty. In agricultural areas, crop straw resources are abundant, but lack of high-quality silage production technology, and the utilization rate of straw resources is low. The investigation of 19 farmers in this room found that there are problems in the silage production, such as long fermentation cycle, serious mold, low feed fermentation quality and low utilization rate. These problems are caused by the fact that the lactic acid bacteria mixed in does not adapt to the natural conditions of Xinjiang and the low soluble carbon and nitrogen content of the raw materials. Therefore, the screening of local high-efficiency feed bacteria and the supplement of carbon and nitrogen sources are the key to solving the problem. The laboratory has screened out local lactic acid bacteria and cellulolytic bacteria to complement the soluble carbon and nitrogen in raw materials and produce high quality silage. Sugar waste liquid is used to make up carbon and nitrogen at home and abroad, while Xinjiang has limited resources, but it is rich in amino acid by-products (ABP). ABP is a wastewater with high yield, low pH, high carbon and nitrogen content after amino acid fermentation of amino acid fermentation broth. At present, ABP emits pollution in addition to some of the chemical fertilizers. The effect of ABP on the growth of forage bacteria in the laboratory proved that it promoted the growth of forage bacteria and provided scientific basis for the project. If the project is funded, converting ABP into forage resources can promote the development of agriculture and animal husbandry and has important economic and environmental significance.