摘要
为探明生物添加剂对苜蓿青贮发酵品质的影响,在第二茬和第三茬各2种含水率(高、低)的苜蓿中分别添加苜蓿绿汁发酵液(AFGJ)、猫尾草绿汁发酵液(TFGJ)、乳酸菌制剂(LAB)、纤维素酶(CEL)及LAB+CEL(MIX)制作青贮。常温下贮存50d开封,测定青贮的发酵品质。结果表明:AFGJ和TFGJ对第二茬低含水率青贮和第三茬的2种含水率青贮、LAB、CEL和MIX对2茬各2种含水率苜蓿青贮的发酵品质均有显著的添加效果;在第二茬高含水率青贮中,CEL和MIX的添加效果最显著,在第二茬低含水率青贮中,MIX的添加效果最佳;在第三茬高含水率青贮中AFGJ和TFGJ的添加效果最显著,在第三茬低含水率青贮中TFGJ、AFGJ、LAB和MIX组的品质相近,优于CEL和CON组;青贮的发酵品质,第三茬优于第二茬;同茬同添加处理的高、低含水率青贮相比,第三茬青贮中的AFGJ组及TFGJ组相近,其他组均以低含水率青贮为优。
Two kinds of 2nd and 3rd cut alfalfa with different moisture content were ensiled to study the effects of alfalfa fermented green juice （AFGJ）, timothy fermented green juice （TFGJ）, lactic acid bacteria （LAB）, cellulase （CEL） and lactic acid bacteria（LAB）＋cellulase （MIX） on fermentation quality of alfalfa silages. Ensilaged them for 50 days at normal temperature, then measured the fermentation quality of the silages. Results showed that AFGJ and TFGJ significantly improved the fermentation quality of silages with low moisture content in 2nd cut and both high and low moisture content in 3rd cut, LAB,CEL and MIX significantly improved the fermentation quality of silages with both high and low moisture content in 2nd and 3rd cut. The effects of CEL and MIX on the fermentation quality of silages with high moisture content in 2nd cut and the effect of M1X on the fermentation quality of silages with low moisture content in 2nd cut were the best. The effects of AFGJ and TFGJ on the fermentation quality of silages with high moisture content in 3rd cut were the best. The fermentation quality of silages with low moisture content in 3rd cut effeeted by TFGJ, AFGJ, LAB and MIX were similar and better than CEL and CON. The fermentation quality of silages in 2nd cut were better than 3rd cut. Compared with silages of high and low moisture content within same cut and same additives, effects of AFGJ and TFGJ were similar and low moisture content in other groups showed better effect.
出处
《中国草地学报》
CSCD
北大核心
2009年第1期70-75,共6页
Chinese Journal of Grassland
基金
日本文部省基盘研究项目(07306013)资助
关键词
生物添加剂
含水率
苜蓿
青贮
发酵品质
Biological additive
Moisture content
Alfalfa
Silage
Fermentation quality
