应用体外法评定科威418的营养价值  

Evaluation of the Nutritive value of Kewei-418 with In Vitro Method

作　　者：姚军虎[1] 任爱英[1] 曹斌云[1] 刘万平[1] 邓凯[1] 田发展 

机构地区：[1]西北农业大学动物科学系,陕西省饲料厂

出　　处：《西北农业大学学报》1994年第3期79-82,共4页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

摘　　要：科威４１８是作者通过特殊工艺研制而成的牛羊高蛋白复合添加剂，其中含有尿素、营养保护剂、酶及多种微量元素等。体外试验表明，以豆饼、尿素及科威４１８作为氮素饲料时，培养３ｈ的培养液中ＮＨ＿３Ｎ浓度依次为１４．５，２８．７及２２．３ｍｇ·（１００ｍＬ）￣（－１）（Ｐ＜０．０１）；培养１２ｈ的ＮＨ＿３Ｎ浓度依次为７．３，１１．４及１３．３ｍｇ·（１００ｍＬ）￣（－１）（Ｐ＜０．０５）；真蛋白氮浓度依次为３８．６，２９．８及３５．４ｍｇ·（１００ｍＬ）￣（－１）（Ｐ＜０．０５）；基质风干物消化率依次为５４．９７％，６１．４４％及６４．９１％（Ｐ＜０．０１）。Kewei-418 was a compound feed with high protein contents de-veloped by the authors with special technology for cattle/sheep/goats.which contains urea,nutritive preservative,enzymes,trace elements and carrier. When soybean meal,urea or Kewei-418 was sole protein feed in the iso-nitrogen culture media,the contents of ammonia nitrogen of formentation liquid in in vitro system were 14.5.28.7 and 22.3 mg·(100mL)￣(-1) at the 3rd hour(P<0.01),and 7.3;11.4 and l3.3 mg·(100mL)￣(-1)at the 12 th hour (P<0.05),and the true protein nitrogen contents of fermentation liquid at the 12th hour were 38.6, 29.8 and 35.4mg·(100mL)￣(-1) media were 54.97,61.44 and 64.91%(P<0.01), respectively.

关 键 词：体外发酵 豆饼 尿素 添加剂 营养 

分 类 号：S816.15[农业科学—饲料科学]