奶畜高效复合蛋白添加剂科威418营养价值的研究初探  

A PRELIMINARY STUDY ON NUTRITIVE VALUE OF HIGHLY EFFECTIVE COMPLEX PROTEIN ADDITIVE KEWEI418 FOR DAIRY STOCK

作　　者：刘万平 胡建宏[2] 

机构地区：[1]固原县畜牧局,宁夏固原756000 [2]西北农业大学,陕西杨凌712100

出　　处：《宁夏农学院学报》2000年第1期45-49,共5页Journal of Ningxia Agricultural College

摘　　要：体外发酵试验表明 ,在培养基质等氮情况下 ,以豆饼、尿素及科威 418作为主要氮素饲料 ,培养 3h ,培养液中氨氮 (NH3 N)浓度依次为 0 .14、0 .2 8和 0 .2 2mg/ml(P <0 .0 1)。培养 12h氨氮 (NH3 N)浓度依次为 0 .0 37、0 .11和 0 .13mg/ml(p <0 .0 5 ) ,真蛋白氮 (TPN)浓度依次为 0 .38、0 .2 9和 0 .35mg/ml(p <0 .0 5 ) ,基质风干物消化率依次为 5 4.97%、6 1.44%和 6 4 .91%(P <0 .0 1)。以上结果表明科威 418作为主要氮素饲料 ,不仅可以促进微生物蛋白质 (MCP)的合成 ,而且可提高日粮风干物的消化率 。The experimental result of fermentation in vetro showed that, in the case of equal nitrogen in culture medium, taking soybean cake, urea and Kewei418 as a major nitrogen feed stuff, the concentrations of ammonia nitrogen in culture solution were 0.14/ml, 0.28/ml and 0.22/ml in sequence after 3h (p<0.01), and 0.037/ml, 0.11/ml and 0.13/ml in sequence after 12h(p<0.05).the concentrations of true protein nitrogen (TPN) were 0.38/ml, 0.29/ml and 0.35/ml in sequence (p<0.05). The digesbilities of the culture meidium air dry matter 54.79%, 61.44% and 64.91% respectively (p<0.01). it indicated that, as major mitrogen feed stuff, kewei418 doesn't only promote the synthesis of microorganism protein but also improve the digestibility of the culture medium air dry matter. It's a kind of highly of effective and dite-saving additive.

关 键 词：体外发酵 科威418 节粮型添加剂 奶畜 蛋白质 

分 类 号：S816.7[农业科学—饲料科学]