研究了枯草芽孢杆菌、酿酒酵母和乳杆菌混合发酵豆粕对仔猪粪便氨气排放的影响.以基础日粮作为对照,分别添加7.33%湿发酵豆粕和5%干发酵豆粕,对75头41日龄的仔猪进行28 d的饲养,然后利用箱式堆肥装置对仔猪粪便进行7 d的静置产氨试验.结果表明,湿发酵豆粕组仔猪粪便1 d和7 d产氨量都显著低于干发酵豆粕组(P<0.05),干发酵豆粕组仔猪粪便1天和7天产氨量都显著低于对照组(P<0.05),湿、干发酵豆粕组仔猪粪便1 d产氨量较对照组分别降低了33.46%、13.39%,7 d产氨量较对照组分别降低了23.53%、13.26%.由此可见,添加7.33%湿发酵豆粕或5%干发酵豆粕均可以减少粪便氨气排放,前者效果更好.%This study aims to evaluate the effects of fermented soybean meal by Bacillus subtilis,Saccharomyces cerevisiae and Bacillus lactis on manure ammonia emission of piglets.A total of 75 piglets with an initial body weight of 13.14 ± 0.22 kg were used in four weeks feeding trial,which was conducted using diets containing 7.33 % wet-fermented soybean meal or 5 % dry-fermented soybean meal,respectively.The manure of piglets was collected to a composting chamber to determine the ammonia production for 7 days.The results showed that the ammonia production of manure in wet-fermented soybean meal group was significantly lower than that in dry-fermented soybean meal group (P<0.05),and the ammonia production of manure in dry-fermented soybean meal group was significantly lower than that in control group (P<0.05).Compared with control group,the ammonia production of manure for both wet-fermented soybean meal group and dry-fermented soybean meal group decreased by 33.46% and 13.39% respectively on the first day,and by 23.53% and 13.26% in 7 days.In conclusion,the addition of 7.33% wet-fermented soybean meal or 5% dry-fermented soybean meal could reduce ammonia emission of manure,and wet-fermented soybean meal had a higher emission reduction compared with dry-fermented soybean meal.
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