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- Title
In situ rumen degradation of sweet sorghum silage and the effect on growth performance in Holstein steers.
- Authors
Wu, C. P.; Hsu, T. H.; Wu, C. Y.; Hong, H. T.
- Abstract
Sweet sorghum is planted during February to October in Taiwan which is great in drought and heat tolerance. For ruminant feeder, using sorghum and fresh corn is a stable way for whole year diet. Results of in situ rumen degradation of sweet sorghum silage showed the rumen dry matter degradability was 17.34 % in 24th hour, and 37.05 and 40.38 % in 48th and 72th hour, respectively. Only the fiber degradability of sorghum silage need be evaluated further. 20 eighteen-month-old Holstein steers were randomly allocated to two different roughage groups which contained basal diet (corn silage, CS) and sweet sorghum silage (SS) group with 7: 3 of roughage and concentrate in the diet. The animal trial was conducted in April to October, 2021. Feed intake and residues were recorded every day, and body weight of steers were measured per two week. Results showed the average body weight of steers was 539.50 ± 23.92 kg in CS, and 601.00 ± 36.48 kg in SS. Daily body weight gain in SS was 0.88 kg which was higher than in CS. Dry matter intake of steers were 8.97 and 10.32 kg per day in CS and SS, respectively. There was great FCR in SS (11.71). To sum up, using sorghum silage was beneficial on daily weight gain, feed intake and FCR in steers during finishing period.
- Subjects
SORGHUM; SILAGE; PERFORMANCE records for beef cattle; CATTLE growth; DRY matter in animal nutrition; CATTLE weight
- Publication
Journal of the Chinese Society of Animal Science, 2021, Vol 50, p212
- ISSN
0253-9187
- Publication type
Article