| 摘要: |
| 在宁夏南部偏旱区饲草资源十分缺乏的固原和海原,利用当地粮食作物秸秆进行微贮,并对其营养状况和饲喂效果进行测定。结果表明,秸秆饲草中粗蛋白质含量提高了152.85%,粗纤维含量降低了21.42%,总氨基酸含量提高了230.54%。以微贮30 d后的玉米秸秆饲喂牛、羊和猪时,提高了家畜的采食量。长期饲喂,羊、猪日增质量平均可达205和461g,其效益提高了189%和34%,其成本比氨化饲草降低60%以上。 |
| 关键词: 秸秆微贮 饲草营养与饲喂 宁南偏旱区 |
| DOI： |
| 分类号:］ |
| 基金项目:国家“九五”旱农攻关项目宁南半干旱偏旱区农业综合发展研究子题(96-004-04-07) |
|
| Research on straw micro-fermentation in the semiarid areas and semiarid areas liable to drought in South Ningxia |
|
LI Qing wang HU Jian hong JIA ZHi kuan
|
| Abstract: |
| The method of straw micro-fermantation has been studied to resolve the lack of local forage resources in the semiarid areas and semiarid areas liable to droughts in the south part of Ningxia.The nutrition states and feeding effects of straw micro fermentation forage have been measured.The results showed that the concentrations of crude protein and total amino acid were increased by 152.85% and 230.54%,respectively.The concentration of crude fiber was decreased by 21.42%.The feed intake of cattle,sheep and pigs was improved by feeding 30 days micro-fermented straw.The average daily weight gain of sheep and pigs was 205 and 461 g/d respectively,and the economic return was increased by 189% and 34%.The cost of straw micro fermentation forage was 60% lower than that of ammonianized forage. |
| Key words: straw,micro-fermentation,forage nutrition and feeding,semiarid areas in South Ningxia |
