青贮饲料
微生物菌剂
发酵
植物乳杆菌
总混合日粮
食品科学
化学
乳酸
动物科学
农学
生物
细菌
园艺
接种
冰崩解
怀孕
遗传学
哺乳期
作者
Yixiao Xie,Shengyang Xu,Wenqi Li,Musen Wang,Zhe Wu,Jinze Bao,Tingting Jia,Zhu Yu
出处
期刊:Animals
[Multidisciplinary Digital Publishing Institute]
日期:2020-11-27
卷期号:10 (12): 2229-2229
被引量:11
摘要
This study aimed to evaluate the effect of the application of an inoculant and a preservative on the fermentation quality, in vitro digestibility, and aerobic stability of alfalfa silage-based fermented total mixed ration (TMR). The TMR was ensiled with (1) no additives (control), (2) Lactobacillus plantarum (LP), or (3) potassium sorbate (PS). The V-scores of all silages were higher than 80 points during the 30 days of ensiling. The addition of LP and PS had no effects on the in vitro parameters, such as in vitro digestibility and in vitro gas production (p > 0.05). LP-treated silage showed similar fermentation quality and comparable aerobic stability to the control (110 h). The LP only decreased the ammonia nitrogen (NH3-N) content (p < 0.05) during ensiling. The PS significantly increased the pH of TMR silages (p < 0.05). Meanwhile, the addition of PS improved the aerobic stability (>162 h) of TMR silage, indicated by the higher water-soluble carbohydrate content and lower NH3-N content in comparison with those in the control after aerobic exposure (p < 0.05). The improvement in fermentation quality is extremely small in terms of applying LP in TMR silage based on a large percentage of other silage ingredients. The PS is effective in conserving unpacked TMR silage and showed the potential to reduce the risk of ruminal acidosis in livestock.
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