Journal Article

A Meta-Analysis of the Effects of Lactobacillus buchneri on the Fermentation and Aerobic Stability of Corn and Grass and Small-Grain Silages

Kleinschmit, D.H., Kung, L.

2006

Overview

The results of adding Lactobacillus buchneri to silages from 43 experiments in 23 sources reporting standard errors were summarized using meta-analysis. The effects of inoculation were summarized by type of crop (corn or grass and small grains) and the treatments were classified into the following categories: 1) untreated silage with nothing applied (LB0), 2) silage treated with L. buchneri at ≤100,000 cfu/g of fresh forage (LB1), and 3) silage treated with L. buchneri at>100,000 cfu/g (LB2). In both types of crops, inoculation with L. buchneri decreased concentrations of lactic acid, and this response was dose-dependent in corn but not in grass and small-grain silages. Treatment with L. buchneri markedly increased the concentrations of acetic acid in both crops in a dose-dependent manner. The numbers of yeasts were lower in silages treated with LB1 and further decreased in silages treated with LB2 compared with untreated silages. Untreated corn silage spoiled after 25h of exposure to air but corn silage treated with LB1 did not spoil until 35h, and this stability was further enhanced to 503h with LB2. In grass and small-grain silages, yeasts were nearly undetectable; however, inoculation improved aerobic stability in a dose-dependent manner (206, 226, and 245h for LB0, LB1, and LB2, respectively). The recovery of DM after ensiling was lower for LB2 (94.5%) when compared with LB0 (95.5%) in corn silage and was lower for both LB1 (94.8%) and LB2 (95.3%) when compared with LB0 (96.6%) in grass and small-grain silages.

• Publisher: Elsevier Inc,American Dairy Science Association,Am Dairy Sci Assoc
• Subject: acetic acid / Acetic Acid - analysis / aerobic stability / analysis / Animal productions / barley silage / Biological and medical sciences / Cereal and baking product industries / chemistry / corn silage / dose response / Edible Grain / Edible Grain - chemistry / Edible Grain - microbiology / Fermentation / Fermentation - physiology / Food industries / Fundamental and applied biological sciences. Psychology / grass silage / isolation & purification / lactic acid / Lactobacillus / Lactobacillus - physiology / Lactobacillus buchneri / microbiology / oxidative stability / physiology / Poaceae / Poaceae - chemistry / Poaceae - microbiology / Silage / Silage - analysis / Silage - microbiology / silage additives / silage fermentation / sorghum silage / Terrestrial animal productions / Vertebrates / wheat silage / whole crop silage / yeasts / Yeasts - isolation & purification / Yeasts - physiology / Zea mays / Zea mays - chemistry / Zea mays - microbiology