摘要
黑麦草在盛花期刈割，自然风干，营养物质含量为：总能１６．３６ＭＪ／ｋｇ，干物质８９．４３％，粗蛋白质１０．４７％，粗纤维３７．２１％，钙０．３３％，总磷０．２２％，平均必需氨基酸为０．２７％，其中赖氨酸、蛋氨酸、苏氨酸和色氨酸含量分别为０．３４％、０．１９％、０．３５％和０．０５％。试验选用４头妊娠母猪。以玉米－豆粕型日粮为基础日粮，分别用黑麦草粉替代１０％、２０％和３０％的基础日粮作为试验日粮。采用４×４拉丁方设计。结果表明０％、１０％、２０％和３０％黑麦草粉组饲料总能的消化率分别为７９．３８％、７４．６９％、６５．１８％和５９．８８％；粗蛋白质消化率分别为７８．９３％、７６．３７％、７２．４３％和６９．１６％；干物质的消化率分别为７７．３０％、７４．５１％、６６．１６０％和６１．６０％。经回归分析得出黑麦草粉总能、粗蛋白质、干物质的消化率依次为１１．５４％、４７．６５％、２２．３０％。黑麦草粉的总氨基酸、总必需氨基酸和总非必需氨基酸的平均粪表观消化率分别为３７．９８％、３７．７８％和３８．２３％；赖氨酸、蛋氨酸、苏氨酸、色氨酸的粪表观消化率为１８．４９％、２５．０８％、１３．９５％、５６．３４％。
Rye was cut in full
blossom,natural dried by air,containing dry matter 89.43%,crude protein 10.47%,crude fiber
37.21%,calcium 0.33%,total phosphorus 0.22%,total energy 16.36MJ/kg,and essential amino
acid(mean) 0.27%,including lysine 0.34%,methionine 0.19%,threonine 0.35% and tryptophan
0.05%.Four gestating sows were involved in this study.Basal diet(corn-soybean meal) was
substituted with the rye hay in proportion as 10%,20% and 30%,respectively.44 Latin Square
design was used.The aparrent fecal digestibilities of total energy were 79.38%,74.69%,65.18%
and 59.88%,of crude protein 78.93%, 76.37%72.43% and 69.16%,and of dry matter
77.30%,74.51%,66.16% and 61.60%,respectively,in group 0%,10%,20% and 30%.By the means
of regression analysis,the digestibilities of total energy,crude protein and dry matter were
11.54%,47.65% and 22.30%,apparent fecal digestibilities (mean) of total amino acids,essential
amino acid and non-essential amino acids were 37.98%,37.78% and
38.23%,respectively,including lysine 18
出处
《中国畜牧杂志》
CAS
北大核心
1999年第4期13-15,共3页
Chinese Journal of Animal Science
关键词
妊娠母猪
消化率
黑麦草
养分
RyeSowDigestibility.49%,methinonine
25.08%,threonine 13.95% and tryptophan 56.34%,respectively.
