摘要
对刈割后初花期紫花苜蓿(Medicago sativa),分别喷洒不同浓度十二烷基硫酸钠(CK:0%、D1:0.5%、D2:1%、D3:1.5%、D4:2%、D5:2.5%、D6:3%),测定其水分含量变化和干燥后粗蛋白(CP),中性洗涤纤维(NDF),酸性洗涤纤维(ADF)及能量(GE)含量的变化。结果表明:喷洒不同浓度的十二烷基硫酸钠可以不同程度的提高紫花苜蓿的干燥速度,并改善其干草营养品质。除D5外,其余各处理组间紫花苜蓿的CP含量差异不显著(p>0.05),其中D5(2.5%)处理组CP含量最高(20.42%);D4(2%)NDF含量(33.77%)显著低于其他各处理组(p<0.05);除D3外,其他各处理组ADF含量显著低于CK(p<0.05);CK组GE含量极显著低于其余各处理(p<0.01),其中D6(3%)GE含量最高(17 671.00 J/g)。综合考虑,7个处理组中以D4(2%)处理组的干燥效果最好,能有效的改善紫花苜蓿干草品质。
After spraying alfalfa of early flowering with different concentrations of sodium dodecyl sulfate ( CK:0%, D1:0. 5%, D2: 1% , D3:t. 5% , D4:2% , D5:2. 5% , D6:3% ) , we measured the changes of water content and crude protein( CP) , neutral detergent fiber(NDF) , acid detergent fiber( ADF) , general energy (GE) content after drying. The results showed that the different concentrations of sodium dodecyl sulfate can increase the drying rate and improve the nutrition quality of dried alfalfa in different levels. In addition to D5, alfalfa CP content of the rest each treatment group has no significantly difference ( p 〉 0. 05 ) , and the CP content of D5 (2.5%) is the highest (20. 42% ) ; NDF content of D4 (2%) (33. 77% ) is significantly lower than the rest each treatment group ( p 〈 0. 05 ) ; in addition to D3, ADF and GE content of the rest each treatment group were significantly lower than CK ( p 〈 0. 05 ) ; GE content of CK was significantly lower than the rest each treatment group ( p 〈 0. 01 ) , GE content of 136 ( 3% ) was the highest( 17 671. 00 J/g) among all groups. The D4 (2%) treatment has the best drying effect and can effectively improve the quality of alfalfa hay in the 7 groups by synthesis consideration.
出处
《塔里木大学学报》
2010年第2期11-15,共5页
Journal of Tarim University
基金
国家科技支撑项目子课题(2006BAD16B03-10)
公益性农业行业项目(nyhyzx07-022)