Ceresnáková Z, Chrenková M, Sommer A, Flak P
Research Institute for Animal Production, Nitra CSSR.
Arch Tierernahr. 1987 Jul-Aug;37(7-8):713-22. doi: 10.1080/17450398709425384.
In the extensive experiments in vitro degradation ability of hydrothermically and thermically treated feeds have been studied. The feeds used were soybean meal, horse bean, alfalfa meal, field pea. The feeds have been treated at 90, 110 and 130 degrees C for 30, 60 and 90 min. The treated feeds have been tested both for microbial degradation ability due to rumen microflora and enzymatic degradation ability via pepsin and trypsin. The fact has been regarded as an important finding that the degradation ability of nitrogenous compounds had been restricted effectively by hydrothermic treatment that was manifested by low ammonia-N levels in fermentation medium (11.3; 8.8; 15.9 and 1.1% out of nitrogen contents in the different feeds). On the other hand improved protein enzymatic digestibility have been recorded in treated feeds as compared with native ones.
在广泛的体外实验中,对经水热处理和热处理的饲料的降解能力进行了研究。所使用的饲料有豆粕、蚕豆、苜蓿粉、野豌豆。饲料在90℃、110℃和130℃下分别处理30分钟、60分钟和90分钟。对处理后的饲料进行了瘤胃微生物菌群的微生物降解能力以及胃蛋白酶和胰蛋白酶的酶解能力测试。水热处理有效限制了含氮化合物的降解能力,这一事实被视为一项重要发现,这表现为发酵培养基中氨氮水平较低(不同饲料中氮含量的11.3%、8.8%、15.9%和1.1%)。另一方面,与天然饲料相比,处理后的饲料蛋白质酶解消化率有所提高。