Effect of Various Strains of Lactobacillus buchneri on the Fermentation Quality and Aerobic Stability of Corn Silage

Abstract

The aerobic deterioration of silage nutrients is inevitable in tropical countries, causing negative consequences in animal production systems. Aiming to minimize the losses, the effects of Lactobacillus buchneri strains on fermentation profile and aerobic stability of corn silages were evaluated. The experiment was conducted under a completely randomized design with 13 treatments and three replicates. The treatments were noninoculated, commercial L. buchneri (CI), and 11 wild strains of L. buchneri: LB-56.1, LB-56.2, LB-56.4, LB-56.7, LB-56.8, LB-56.9, LB-56.21, LB-56.22, LB-56.25, LB-56.26, and LB-56.27. The treatments could be divided into three different groups according to silage pH and acetic acid concentration. Silages inoculated with LB-56.1, LB-56.4, and LB-56.9 presented higher pH, whereas intermediate values were observed for LB-56.2, LB-56.7, and LB-56.8. The highest acetic acid production was observed for LB-56.1 and LB-56.7. On the other hand, lowest concentrations were found for CI, LB-56.22, LB-56.25, LB-56.26, and LB-56.27. Higher amounts of NH3–N were observed for LB-56.8, LB-56.21, LB-56.22, and LB-56.27 silages than others. Silage inoculation with CI, LB-56.1, LB-56.2, LB-56.4, LB-56.8, LB-56.9, and LB-56.25 strains had higher aerobic stability than others (59.7 vs. 41.2 h). The L. buchneri strains LB-56.1, LB-56.2, LB-56.4, LB-56.8, LB-56.9, and LB-56.25 provided potential features to improve the aerobic stability of corn silage.

Effect of Inoculants and Sealing Delay on the Fermentation Quality of Early Harvested Wheat Forage

“…Moreover, in our experiment, no statistical differences at T60 within the thesis were observed (Figure S6). However, the LAB levels in all the theses were similar to those reported in maize silage supplemented with Lb after 90 d of fermentation [78].…”

Effects of Different Types of LAB on Dynamic Fermentation Quality and Microbial Community of Native Grass Silage during Anaerobic Fermentation and Aerobic Exposure

“…The aerobic stability of LB and PB was significantly greater than that of CK and LP, with LB being the highest. Better fermentation characteristics and aerobic stability during the aerobic exposure phase are common when Lactobacillus buchneri is used as a silage inoculant, which is consistent with observations reported by Agarussi et al [ 42 ]. While the acetic acid content of LP was higher than that of CK, aerobic stability was not significantly different from CK, which may be due to the fact that a large amount of lactic acid provided sufficient fermentation substrate for undesirable microorganisms during the aerobic exposure phase, resulting in reduced aerobic stability of LP, as verified by the results of Da et al [ 43 ] and Mugabe et al [ 44 ].…”

Effect of lactic acid bacterial starter KUB-G2 on grass silage quality and its microbial community performed using 140-ton plastic bag silos: a large-scale study

“…However, spoilage can occur during silo opening (Wilkinson and Davies, 2012). To reduce these risks, especially yeast contamination, heterofermentative LAB, such as Lentilactobacillus buchneri, is increasingly used as additional silage inoculants to increase content of acetic acid, consequently suppressing the growth of yeast cells (Nascimento et al, 2022;Schmidt and Kung, 2010;Yin et al, 2023). The benefits of Lb.…”