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- Title
Evaluation of rice straw sweet potato silage on the performance of Holstein steers.
- Authors
Wang, T. L.; Wu, C. P.; Hsu, T. H.; Wu, C. Y.; Zhong, W. L.
- Abstract
Taiwan produced a large amount of rice straw and sweet potato by-products every year. It can reduce feeding costs when feeding them to animals. The aim of this study was to evaluate the optimum diet ratio of rice stalk sweet potato silage (RSS) and the performance of steers. 16 Holstein steers (240.5 ± 29.82 kg) fed with different ratio of RSS, corn fodder, and concentrate, which were (1) 3:2:5, (2) 4:2:4, (3) 5:2:3, (4) 7:0:3, (5) 8:0:2 respectively. Fed for 2 weeks, the feed intake was recorded every day and steers were weighed every 2 weeks. The ADG, DMI, and FCR were then calculated to evaluate the optimal diet ratio. The results showed that the diet (3) had the best growth trait, ADG was 0.98kg and FCR was 7.71. While feeding the diet (5), DMI decrease and had no weight gain. This test showed that feeding the ratio of 5:2:3 to Holstein steers had the best performance. An optimal ratio of rice straw sweet potato silage in the diet was 50%, excessive use will have a negative impact.
- Subjects
RICE straw; SWEET potatoes; SILAGE; BEEF cattle; ANIMAL feeding behavior
- Publication
Journal of the Chinese Society of Animal Science, 2019, Vol 48, p335
- ISSN
0253-9187
- Publication type
Article