Effect of different silage additives on quality of mixed silage of corn and whole soybean
The purpose of the experiment was to investigate the effects of different silage additives on the mixed silage of silage corn and whole soybean(1∶1).The control(CK)had no microbial inoculum,T1,T2,T3,T4,and T5 were silaged with 0.005 g/kg microbial inoculum,0.3 g/kg enzyme preparation,0.005 g/kg microbial inoculum+0.3 g/kg enzyme preparation,4 mL/kg formic acid,and 4 mL/kg propionic acid,respectively,and the silage was fermented for 90 days.The results showed that the pH value of treatment groups and CK was lower than 4.10.Lactic acid(LA)content in T4,T5,and T1 was significantly higher than that in other treatments(P＜0.05).The content of acetic acid(AA)was significantly higher than that of CK(P＜0.05),and ammonia nitrogen/total nitrogen(NH3-N/TN)was significantly lower than that of CK(P＜0.05).The contentrations of dry matter(DM)and starch in T5 and T4 were significantly higher than those in CK(P＜0.05).The content of crude fat(EE)in T3 and T2 was significantly higher than that in CK(P＜0.05).The content of soluble carbohydrate(WSC)in T1 and T4 was significantly higher than that in CK(P＜0.05).The contentrations of crude ash(CA)and acid detergent fiber(ADF)treated with each additive were significantly higher than those in CK(P＜0.05).The nutritional value of all treatments was ranked as T1＞T5＞T4＞T3＞T2＞CK by the membership function method.The additive treatments improved the aerobic stability of corn and soybean mixture,and the effects of T5,T4,and T1 were better than those of other treatments.The study indicates that the additive treatments improve the nutritional value and aerobic stability of mixed silage of corn and whole soybean,among which propionic acid,formic acid,and microbial inoculum are better than other treatments.
国家科技期刊平台
NSTL
万方数据
维普
