본시험은 비육돈사료에 미생물제제를 사료에 미생물제제 A 및 B 0.1 미생물제제 C를 0.2% 혼합 급여할 경우 사료섭취량 및 돈분의 오염물질 배설농도에 미치는 영향을 분석하기 위하여 4처리×반복당 5두로서 총 20두를 공시하여 실시하였는데 그 결과를 요약하면 다음과 같다
이상의 결과를 요약해보면 비육돈에 미생물제제 혼합급여시 사료섭취량과 음수량을 증가시키는데 효과가 있는 것으로 조사되었으나, 비료성분 배설량에는 큰 차이를 보이지 않는 것으로 조사되었으나, BOD 등 오염물질농도의 경우에는 미생물제제 A급여구에서 가장 낮게 조사되어 비육돈사료에 미생물제제 급여시 오염물질 저감효과가 있는 것으로 조사되었다.Study for the effect of three different microbial feed additives(henceforth MA-A, MA-B, and MA-C) on feed coversion rate, and physical and chemical characteristics of swine finisher was conducted.
MA-B had higher number of Lactobacillus spp. and yeast, compared to any other. The amylase activity of MA-B was also higher than any other. The daily feed intake rates of pigs fed control, MA-A, MA-B and MA-C were 3.15, 3.14, 3.31 and 3.42 kg, respectively. MA-C had the highest weight gain. However, there was no significant difference between treatments. The weights of feces daily excreted by pigs fed control, MA-A, MA-B, and MA-C were 2.14, 2.02, 2.18, and 2.23 kg/day, respectively. The volume of urine daily excreted by pigs fed control, MA-A, MA-B, and MA-C were 3.14, 3.26, 3.27, and 3.41 ℓ/day, respectively. Water content, T-N, P2O5, and K2O in swine manure were not significantly different between treatments. The BOD were between 42,576 and 67,450mg/ℓ for feces and were between 5,882.5 and 8,657.5mg/ℓ for urine, respectively. The SS were between 138,000 and 180,000mg/ℓ for feces and were between 875.0 and 1450.0mg/ℓ for urine, respectively.