摘要
玉米是反刍家畜最重要的能量饲料，其主要成分为淀粉，含量可达64％～78％，易被消化吸收，且利用率高。特别是经过蒸汽压片处理后的玉米，能够调控淀粉在反刍家畜不同消化部位的降解率，进一步提高其营养价值。为了研究蒸汽压片玉米和颗粒玉米及其TMR日粮的营养价值，试验利用体外产气法对蒸汽压片玉米和颗粒玉米及其TMR日粮体外产气和发酵参数进行了测定。结果表明，玉米经过蒸汽压片处理后，可有效改善其在反刍家畜瘤胃内的降解率，营养价值得到了显著提高。
Corn is the most important energy feed for ruminant. The main component of corn is starch and its content is 64%-78%. Starch is easy to be digested and absorbed, with high efficiency. Especially the corn after steam-flaked treatment could regulate the degradation of starch in different digestion organs of ruminant and further enhance its nutritional value. In order to study the nutritional values of steam-flaked corn, granule corn and their TMR diet, the gas production in vitro and fermentation parameters of steam-flaked corn, granule corn and their TMR diet were determined by using gas production in vitro method. The results showed that corn after steam-flaked treatment could effectively improve its degradation rate in the rumen of ruminant and significantly enhance its nutritional value.
出处
《畜牧与饲料科学》
2014年第5期34-36,共3页
Animal Husbandry and Feed Science
基金
国家科技支撑计划(2012BAD12B02)
关键词
体外产气
蒸汽压片玉米
颗粒玉米
营养价值
gas production in vitro
steam-flaked corn
granule corn
nutritional value
