<b>Aerobic stability in corn silage (<i>Zea mays</i>L.) ensiled with different microbial additives

Abstract

ABSTRACT. This study aimed to assess different microbial additives, regarding the efficiency of aerobic stability in corn silages. The corn hybrid used for silages production was the DKB 310. . The experimental design was completely randomized with five replicates for each treatment. For the parameters evaluated daily, we used the split plot design, in which the different silages were assigned to the plots and the time of exposure to air was assigned to the subplots. There was no difference of additives on silage pH in any of the evaluation days. The control silage reached higher temperatures indicating greater vulnerability. All additives had no aerobic instability. Silages made with the use of microbial additives were effective in maintaining the aerobic stability.Keywords: aerobiosis, silage, fermentation, nutritional quality.Estabilidade aerobica em silagem de milho (Zea mays L.) ensilada com diferentes aditivos microbianos RESUMO. O objetivo deste trabalho foi avaliar diferentes aditivos microbianos, no tocante a eficiência da estabilidade aeróbia em silagens de milho. O híbrido de milho utilizado para cultivo e posterior confecção das silagens foi o DKB 310. Os tratamentos impostos às silagens foram: 1) Tratamento Controle, sem nenhum aditivo microbiano. 2) Tratamento com LPPA composto por: Lactobacillus plantarum CCT 0580 3,1x10 10

Influence of inoculation with Lactobacillus on fermentation, production of 1,2-propanediol and 1-propanol as well as Maize silage aerobic stability

“…Silva et al [ 26 ] used L. buchneri strains and noted an increase in the CP level compared with that in the control sample. Similar results were reported by Bumbieris et al [ 27 ], who observed that the CP content in inoculated samples (7.47%) was greater than in the control samples (6.87%). Lactobacillus strains used in our study reduced yeast and mould counts.…”

Effects of Bacillus subtilis or Lentilactobacillus buchneri on aerobic stability, and the microbial community in aerobic exposure of whole plant corn silage

“…In addition, researchers have confirmed that B. subtilis can produce antifungal and antibacterial substances, that can inhibit the growth of undesirable microorganisms such as yeast and filamentous fungi, and prevent silage spoilage and mycotoxin production ( Bonaldi et al, 2021 ), which may be applicable to improving aerobic stability. Inoculation with B. subtilis can improve the aerobic stability of silage ( Bumbieris et al, 2017 ; Bai et al, 2020 ), but studies on its role in whole plant corn silage are inadequate. Gandra et al (2017) observed that co-inoculation of L. buchneri and B. subtilis improved the aerobic stability of sunflower silage by reducing the number of aerobic and spoilage microorganisms and increasing the number of lactic acid bacteria.…”

Effect of microbial inoculants on the chemical composition and aerobic stability of Tanzania guinea grass silages

“…However, the temperatures of I and L increased linearly over time after opening of silo. The increase in temperature over time is because of the enzymatic activity of the deleterious microorganisms that release energy (heat) during the process of nutrient degradation (Bumbieris Junior et al, 2017). This is different from what occurs normally in corn silages (Tomaz et al, 2018) and supports the concept that tropical grasses are more prone to deterioration by aerobic bacteria.…”

“…As a consequence, microbial metabolic activity inside the silo is reduced and the forage can be preserved for longer periods (McDonald et al, 1991). High pH conditions also favour development of Clostridium bacteria, which can take advantage of aerobic conditions after opening the silo to convert proteins into NH 3 -N (Bumbieris Junior et al, 2017;Zanine et al, 2018). Controlling Clostridium bacteria in silages with inoculants can be difficult in humid conditions, and dry matter may be lost as a result (Tomaz et al, 2018).…”