期刊
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
卷 28, 期 7, 页码 999-1005出版社
ASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOC
DOI: 10.5713/ajas.15.0066
关键词
Bacillus-based Feed Additive; Fecal Gas Emission; Growth Performance; Growing-finishing Pigs; Nutrient Digestibility
资金
- Human Resource Training Program for Regional Innovation and Creativity through the Ministry of Education and National Research Foundation of Korea [NRF-2014H1C1A1067113]
Bacillus-based feed additive was evaluated for its efficacy on growth performance, nutrient digestibility, fecal gas emission, and the consumption of time and amount of water for cleaning the pen of growing finishing pigs. A total of 120 growing pigs (23.59 +/- 1.41 kg) were used in a 16-wk feeding trial. Pigs were randomly distributed into 1 of 2 treatments on the basis of body weight and sex. There were 12 replicate pens per treatment, with 5 pigs (3 barrows and 2 gilts) per pen. Dietary treatments were CON which was basal diet, and T1 which was CON+62.5 ppm microbial feed additive that provided 1.47x10(8) cfu of Bacillus organisms per grain of supplement. During the weeks 0 to 6, average daily gain (ADG) in T1 treatment was higher (p<0.05) than CON, but no improvement in average daily feed intake (ADFI) and feed efficiency (G:F) was noted. During 6 to 16 weeks, no difference (p>0.05) was noted in growth performance. However, ADG was improved (p<0.05) and overall ADFI tended (p = 0.06) to improve in Ti compared with CON. At week 6, the co-efficient of apparent total tract digestibility (CATTD) of dry matter (DM) nitrogen (N) was increased (p<0.05) in T1 compared with CON. Fecal NH3 emission was decreased (p<0.05) in T1 compared with CON, at the end of 6th and 15th weeks. The time and water consumed for washing the pens were decreased (p<0.05) in T1 compared with CON. In conclusion, supplementation with Bacillus-based feed additive could improve the overall growth performances, increase the CATTD of DM and decrease the fecal NH3 content and the time and water consumed in washing the pens for growing-finishing pigs.
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