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KMID : 1025520030450040529
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Journal of Animal Science and Technology
2003 Volume.45 No. 4 p.529 ~ p.536
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Effects of Feeding Mushroom Substrate Waste and Probiotics on Productivity, Emission of Gases and Odors in Manure for Finishing Pigs
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Abstract
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A total of 72 finishing pigs(L×Y×D； 80㎏ 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 emission 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_(２)S 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 erms 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.
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