营养酸模对产奶母牛饲喂效果的试验报告

试验用营养酸模鲜茎叶替代奶牛部分精料观测其对泌乳牛的饲喂效果。试验共设三个试验组和一个对照组，其试验组营养政模的替代率分别为１２．５％、２５．０％及 ３７．５％，经三期 ３００天的饲喂，其结果为试验组比对照组头日产奶量分别高 ０．９６ｂｄ、２．２５ａｂ、２．６７ｋｇ（Ｐ＜０．０１或 Ｐ＜０．０５），比对照组（ＣＫ）提高 ７．７％、１８．０％、２１．３％；平均乳脂率分别提高 ０．６３Ａ，０．３５Ｂ，０．３１Ｂ个百分点（Ｐ＜０ ．０１或 Ｐ＜０．０５），比ＣＫ组提高１７．３％、９．６％、８．５％。经济效益显著，适应性良好。试验证实，用营养酸模替代部分精料对提高奶牛泌乳量和改善牛奶品质及口感是有利的。

Report on an feeding effectious assay to lactation ability of the cow with Nutritious Rumex

This assay used new grown stem and leaves to subastitute part of the extractive feed, and notise the effect of its lactation ability. This assay has divided three assay groups and one contrast group, and the proportion of the substitute with Nutritious Rumex are 12. 0%, 25. 0% and 37. 5%. through 30 days(three stages). the results showed that the Average daily milk yield of the assay groups are more than that of the contrast group by 0. 96bd, 2. 25ab, 2. 67a(P<0.01 or P <0. 05 ), A. milkfat percentage each has improved 0. 63A, 0. 35B, 0. 31B(P<0.01 or P<0.05), its economic benefit is outstanding, and it's tasty. The assay proves that it is feasible and effective to substitute part of the extractive feed when we develop the cow industry, and will do good to improve the cow lactation contion content, milk quanlity and taste.