摘要
初花期收获的苜蓿经过0,8和32 h的晾晒,添加乳酸菌和纤维素酶进行青贮。结果表明,不同干物质含量的苜蓿青贮时,乳酸菌+纤维素酶的添加均能使青贮pH值快速下降;苜蓿半干青贮(干物质含量为38.45%)可使青贮氨态氮含量显著降低,并保存有较多的粗蛋白质,生成较多乳酸,其中以添加乳酸菌106cfu/g+纤维素酶0.05g/kg的青贮效果最好,其青贮综合评定得分最高,达93分。
Medicago sativa was harvested at the initial flowering stage and wilted for 0, 8 or 32 h after which the DM contents were 27. 15%, 38.45% and 50.87%, respectively. It was ensiled with lactic acid bacteria＋ cellulase at rates of 10^5 cfu/g＋0. 100 g/kg, 106 cfu/g＋0. 050 g/kg and 107 cfu/g＋0. 025 g/kg. All additions rapidly decreased silage pH under different DM contents of M. sativa. M. sativa （DM 38.45%） ensiled with lactic acid bacteria＋cellulase gave the best results： ammonia nitrogen content was reduced, and most CP was conserved and most lactic acid produced. The silage points of M. sativa （DM 38.45%） with the addition of 10^6 cfu/g lactic acid bacteria and 0.050 g/kg cellulase was 93 and its silage quality was better than those of other treatments.
出处
《草业学报》
CSCD
2007年第3期139-143,共5页
Acta Prataculturae Sinica
基金
"948"项目(2006-G38)资助
关键词
苜蓿
乳酸菌
纤维素酶
青贮品质
Medicago sativa
lactic acid bacteria
cellulase
silage quality
