Study on the degradation of dry matter and fat of concentrates in the rumen of steers measured with nylon bag technique
1998
Zhao Guangyong | Zhang Qiang | Feng Yanglian(China Agricultural Uni., Beijing (China). College of Animal Science and Technology)
The degradabilities of dry matter and fat commonly used concentrates such as corn, sesame meal, rapeseed meal, soybean meal, cottonseed meal, sunflower meal, cottonseed cake, soybean and chicken giblets were determined with nylon bag technique. Results showed that at 48 hours of incubation, the dry matter degradability of soybean is 96.8, which was the highest in all feeds. The dry matter degradabilities of soybean meal, corn, sesame meal, rapeseed meal, cottonseed meal and cottonseed cake were 89.3, 89.0, 88.4, 79.2, 78.4 and 77.6, respectively. The dry matter degradability of chicken giblets was 66.5, which was the lowest among all feeds in the experiment. Teh fat degradabilities of cottonseed meal, rapeseed meal, soybean, soybean meal, cottonseed cake, sesame meal, chicken giblets, sunflower mean and corn were 98.9, 98.7, 98.5, 93.7, 89.7, 88.6, 88.3 and 83.6, respetively.
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