Characterization of Tifton 85 bermudagrass haylage with different layers of polyethylene film and storage time

Asian-Australasian Journal of Animal Sciences

Simone Damasceno Gomes¹  Kácia Carine Scheidt²  José Renato Stangarlin³  Caroline Daiane Nath³  Marcela Abbado Neres³  Samantha Mariana Monteiro Sunahara³  Luciano dos Santos Bersot⁴  Mallu Jagnow Sereno⁴  Ana Paula Perin⁴  Jaqueline Rocha Wobeto Sarto⁵ 

[1] Department of Agricultural Engineering, State University of West Paraná, Cascavel, PR 85819-110, Brazil;Department of Agricultural Science, State University of Maringá, Maringá, PR 87020-900, Brazil;Department of Agricultural Science, State University of West Paraná, Marechal Cândido Rondon, PR 85960-000, Brazil;Department of Veterinary Science, Federal University of Palotina, Palotina, PR 85950-000, Brazil;Department of Zootechny, São Paulo State University, Botucatu, SP 18618-970, Brazil;

关键词: Dehydration;    Fermentation;    Forage;    Microorganisms;   

DOI  :  10.5713/ajas.17.0604

来源: DOAJ

【 摘 要 】

Objective The objective was to characterize the fermentative and microbiological profile of Tifton 85 bermudagrass haylage with different layers of polyethylene film and storage time. Methods The experimental design consisted of a randomized block design with four and six wrapping layers (100 and 150 microns in total. respectively) allocated in the main plots, through repeated measures analysis (30, 60, and 90 days of storage) with four replicates. Results The storage time and number of wrapping layers did not show changes in the population of Clostridium and lactic acid bacteria. A decrease was observed in the enterobacteria population with an increase in the storage period in the two wrapping layers studied. Upon opening of the haylage at 30 days, the population of Bacillus was lower in haylages made with six layers of wrapping (3.63 log colony forming units/g). No growth of Listeria sp. or Salmonella sp. was observed during the experimental period. The fungal genera with a greater occurrence were Penicillium sp. and Fusarium sp. The following mycotoxins were not detected: ochratoxin A, fumonisins, and zearalenone. Relative to the organic butyric, propionic, and acetic acids, the haylages presented a low concentration of lactic acid; this may have prevented a drop in the pH, which was high when the silos were opened (5.4). The levels of ammoniacal nitrogen and soluble carbohydrates presented no variation among the number of wrapping layers, with an overall average of 35.55 and 38.04 g/kg. Conclusion Tifton 85 bermudagrass haylage wrapped with four and six layers presented adequate fermentation and microbiological characteristics in the evaluated periods.

【 授权许可】

Unknown