Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effects of Feeding Mushroom Substrate Waste and Probiotics on Productivity, Emission of Gases and Odors in Manure for Finishing Pigs

버섯재배 폐배지와 생균제의 급여가 비육돈의 생산성, 돈분 중 가스 및 냄새발생에 미치는 영향

  • Choi, S.C. (Division of Animal Resources, Kangwon National University) ;
  • Chae, B.J. (Division of Animal Resources, Kangwon National University)
  • 최순천 (강원대학교 동물자원학부) ;
  • 채병조 (강원대학교 동물자원학부)
  • Published : 2003.08.30
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Abstract

A total of 72 finishing pigs(L${\times}$Y${\times}$D; 80kg of initial body weight) were employed for 5 weeks to investigate the effects of feeding mushroom substrate waste(MSW) treated with pleurotus ostreatus and probiotics on productivity, carcass traits, nutrient digestibility and emissions of harmful gases and malodor in manure. Treatments were Control(C: basal diet), T1(3% MSW) and T2(3% MSW+ 0.1% probiotics). Average daily gain(ADG) was lower(p<0.05) in pigs fed a T1 diet than those fed a C diet, however, there was no difference in ADG of pigs fed diets between C and T2. Similar trends were found in feed/gain(F/G) among treatments, though feed intake was not different. No differences were found in back fat thickness among treatments, but carcass dressing percentage was significantly(p<0.05) improved in pigs fed a T2 diet compared to C or T1 diets. Nutrient digestibilities including dry matter, crude protein, energy and crude fiber were lower(p<0.05) in T1 than C or T2. $NH_3$ and $H_2S$ gas emissions were reduced(p<0.05) or not produced in pig manure from T2 as compared to C or T1. In conclusion, the present result shows that feeding MSW with probiotics is desirable for finishing pigs in terms of productivity, carcass traits and nutrient digestibility. It also appears that the emission of harmful gases and malodor in manure can be reduced by the inclusion of probiotics in the diet.

본 연구는 버섯재배 폐배지(MSW)의 단독 또는 생균제와의 혼합급여가 비육돈의 생산성, 영양소 소화율 및 돈분중 유해가스와 냄새발생에 미치는 영향을 조사하고자 비육돈 72두(L${\times}$Y${\times}$D, 개시체중 80kg)를 공시하여 5주간 사양시험을 실시하였다. MSW와 생균제를 첨가하지 않은 대조구, T1(MSW 3%첨가), 그리고 T2(T1에 생균제 0.1% 첨가)로 3처리를 두었다. 일당증체량에서는 T1이 대조구와 T2에 비해 유의적으로(p<0.05) 떨어지는 결과가 나타났으나 사료섭취량에서는 각 처리간에 별 차이가 없었다. 그러나 사료요구율은 증체량과 같은 경향을 보여 T1이 T2에 비해 유의적으로 낮았다(p<0.05). 도체성적을 살펴보면 도체율이 T2가 T1과 대조구에 비해 유의적으로(p<0.05) 증가되었으나 대조구와 T1간에는 차이가 없었다. 등지방두께는 처리간에 유의적인 차이가 인정되지 않았다. 건물, 에너지, 단백질의 소화율이 T1에서 대조구나 T2에 비해 전반적으로 떨어졌다 (p<0.05). 특히 조섬유의 소화율에서는 T1이 다른 처리에 비해 현저히 떨어졌으며(p<0.05), T2는 대조구에 비해서도 유의적으로 소화율이 개선되었다(p<0.05). 돈분 중 발생되는 $NH_3$가스와 $H_2S$ 가스 발생량은 대조구나 T1에 비해 T2에서 유의적으로(p<0.05) 감소되었거나 발생되지 않았다. 이상의 결과를 요약해 보면, 비육돈사료에서 MSW를 단독으로 사용하는 것보다 생균제와 혼합하여 사용하면 돼지의 생산성, 도체성상 및 영양소 소화율에서 도움이 되며, 특히 생균제를 첨가할 때 돈분에서 발생하는 유해가스나 냄새 발생량을 줄일 수 있을 것으로 사료된다.

Keywords

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