尿素缓释技术在反刍动物中应用的研究进展

摘要

尿素的实用意义较大，在生产中的应用也较为广泛。但是，直接饲喂尿素也存在一些弊端，特别是在饲料混合不均匀或尿素添加过量时，因为氨在瘤胃中的释放速度是瘤胃微生物对其利用速度的4倍。为了使反刍动物能更好地利用尿素，并使其瘤胃微生物利用氨与尿素释放氨同步，研究者们进行了大量的研究工作。对尿素缓释技术在反刍动物中应用的研究进展进行了综述。%Urea was of great significance and it had wide application in actual production. But feeding urea directly also had some disadvantages. When feed was mixed unevenly or urea was excessively added,the release rate of ammonia in rumen was four times as its utilization rate by rumen microbe. In order to make full use of urea by ruminants and synchronization of utilizing ammonia and releasing ammonia of rumen microbe,a lot of studies were made. The research progresses on the application of urea-releasing technology in ruminants were summarized.