The effect of Lactobacillus buchneri, Lactobacillus plantarum, or a chemical preservative on the fermentation and aerobic stability of corn silage
The effect of Lactobacillus buchneri, Lactobacillus plantarum, or a chemical preservative on the fermentation and aerobic stability of corn silage
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DOI：
10.3168/jds.s0022-0302(00)74912-5
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发表时间：
2000-03-01
影响因子：
3.5
通讯作者：
Kung, L
中科院分区：
文献类型：
--
作者：
Ranjit, NK;Kung, L
试验了几种微生物和一种化学防腐剂对玉米青贮发酵及好氧稳定性的影响。整株玉米（含半乳，干物质31.3%）在未经处理或经过以下处理后青贮在4个重复的20 l实验室筒仓中：新鲜饲料中添加1 × 10(5)和1 × 10(6) cfu/g的布氏乳杆菌；两株植物乳杆菌，每株浓度为1 × 10(6) cfu/g；以新鲜饲料重量0.1%为基础的缓冲丙酸产品。青贮100 d后，布氏乳杆菌（1 × 10(6) cfu/g）处理的青贮乳酸浓度低于未处理的青贮，但与其他处理的青贮相似。青贮饲料采用高剂量（1 × 10(6) cfu/g）处理，不采用中等剂量（1 × 10(5) cfu/g）处理。与其他处理（平均乙酸浓度为1.88%，酵母浓度为5.85 log cfu/g）相比，布氏菌的乙酸浓度为3.60%，酵母浓度为2.01 log cfu/g)。与未处理的青贮相比，经L、plantarums、适量布氏乳杆菌和化学防腐剂处理的青贮在暴露于空气中所需的加热时间更长，但改善幅度很小（6.3 ~ 10.5 h）。相比之下，青贮饲料的高成品率。在900小时的监测期间，布赫内里从未加热过。以1 × 10(6) cfu/g / oft接种玉米青贮。布氏菌的添加使玉米青贮的异乳酸发酵更加明显，并显著提高了玉米青贮的有氧稳定性。
Several microorganisms and one chemical preservative were tested for their effects on the fermentation and aerobic stability of corn silage. Whole-plant corn rone-half milk line, 31.3% dry matter) was ensiled in quadruplicate 20-L laboratory silos untreated or after the following treatments: Lactobacillus buchneri at 1 x 10(5) and 1 x 10(6) cfu/g of fresh forage; two different strains of L. plantarum, each at 1 x 10(6) cfu/g; and a buffered propionic acid-based product at 0.1% of fresh forage weight. After 100 d of ensiling, silage treated with L. buchneri (1 x 10(6) cfu/g) had a lower concentration of lactic acid compared with the untreated silage, but was similar to other treated silages. The silage treated with the high (1 x 10(6) cfu/g), but not the moderate rate (1 x 10(5) cfu/g) oft. buchneri also had a greater concentration of acetic acid (3.60%) and less yeasts (2.01 log cfu/g) when compared with other treatments (average of 1.88% acetic acid and 5.85 log cfu of yeasts/g). Silages treated with L, plantarums, the moderate rate of L. buchneri, and the chemical preservative took longer to heat than untreated silage when exposed to air, but improvements were numerically small (6.3 to 10.5 h). In contrast, silage treated with the high rate oft. buchneri never heated throughout a 900-h period of monitoring. Inoculating corn silage with 1 x 10(6) cfu/g oft. buchneri resulted in a more heterolactic fermentation and dramatically improved the aerobic stability of corn silage.