Performance of dairy cows fed with high moisture whole plant maize silage inoculated with Pediococcus acidilacticci and Lactobacillus plantarum

摘要

Whole plant maize (DM 241 g kg-1) was ensiled into two ferroconcrete trenches of 100 teach. Two treatments were used 1) untreated (UT), 2)treated with the lactic acid producing bacteria 2 Lactobacillus plantarum and 2 Pediococcus acidilactici and Enzyme –Cellulase (I). Fermentation quality , aerobic stability, forage intake and milk yield of dairy cows were assessed. Compared to the control less (P<0.01) WSC were fermented into organic acids. Inoculation resulted in a significant increase (P<0.01) of lactic acid concentration and a decrease of the acetic acid concentration and prevention of butyric acid fermentation. Ammonia-N concentration was significantly lower (P<0.01) in inoculated silage compared to untreated silage. Inoculation lowered dry matter losses and improved the digestible value of the silage. Inoculant had no effect on aerobic stability of the silage. The results also showed that when silage was inoculated, silage intake of dairy cows increased by 1.44 kg DM and energy-corrected milk yield improved by 2.5 kg per cow per day compared with ordinary made silage