Studies On The Effects Of Different Treatments For Ningxia Typical Roughage

The research object of the test is Ningxia typical roughage:rice straw, corn stalks and alfalfa, using lactic acid, cellulose, urea and sodium hydroxide as additives to treat the roughage in different ways: microbial and ammoniated treatments. After the treatments, the fermentation quality, nutrients and regular conventional invitro digestibility of nutrient were measured. By analyzing the effects of the four additives on the nutritional value of feed, comparing the advantages and disadvantages of different additives, the best treatment was selected so as to offer some supporting data for further research and production practice.The results are as follows:1. The effect of Microbial fermentation additives on the quality of the crude feed The result shows that adding lactobacillus and cellulose will effectively reduce the content of PH, ammonia nitrogen in the Microbial feed, improve the comprehensive evaluation rate of ammonia nitrogen and organic acid in the feed. The PH in the feed can be reduced obviously by adding cellulose. To add straw and corn stalks to the mixed feed can reduce alfalfa forage buffer energy value, make up for the soluble carbohydrate deficiency in alfalfa forage and improve the fermentation quality of Microbial feed.2. The effect on the nutritional content of roughageThe result shows that adding lactic acid, cellulose, urea, sodium hydroxide will improve the conventional feed ingredients, effectively increase the content of CP in Microbial feed and ammoniated feed, reduce the content of NDF and ADF in the feed significantly and improve the nutritional value of roughage. The index of RFV in the mixed Microbial feed of alfalfa and corn stalks reaches166. The lactic acid improves forage nutrients better than cellulose. Urea increases the content of CP in the feed while sodium hydroxide reduces the content of NDF and ADF in the feed.3. The effect of additives on invitro digestibility of roughage conventional nutrients The result shows that the invitro digestive rate can be greatly improved by adding lactic acid, cellulose, urea and sodium hydroxide and the invitro digestive rate of CP,NDF and ADF is improved significantly. Lactic acid can improve the digestive rate much better than cellulose and sodium hydroxide improves the digestive rate of NDF and ADF.4. Optimization on different silage additivesThrough a comprehensive analysis of fermentation quality, conventional nutrients and in vitro digestibility of nutrients, the results of optimization on best treatment for different feed: The best way to treat straw and alfalfa Microbial feed:the ratio of straw to alfalfa is1:2mixed with5g/tlactic acid and1%cellulose. The best way to treat corn stalks and alfalfa Microbial feed:the ratio of corn stalks and alfalfa is1:2mixed with5g/t lactic acid and1%cellulose. The best way to treat rice straw Microbial feed:add7.5g/t lactic acid and1.5%cellulose. The best way to treat corn Microbial feed:add2.5g/t lactic acid and1%cellulose. The best way to treat ammoniated straw:8%of urea and sodium hydroxide, the ratio of urea to sodium hydroxide is1:1. The best way to treat corn stalks amination:add6%of urea and sodium hydroxide, the ratio of urea to sodium hydroxide is2:1. As is shown above, in Microbial feed, feed mixed with corn stalks and alfalfa is better than feed mixed with straw stalks and alfalfa, while in ammoniated feed, the treating effect of urea and sodium hydroxide on rice straw is better than on corn stalks.