Fermentative characteristics and chemical composition of cochineal nopal cactus silage containing chemical and microbial additives

The objective of this study was to evaluate the fermentative characteristics and chemical composition of cochineal nopal cactus silage additives with urea or Lactobacillus buchneri (LB), as well as the association of both additives in four storage times (7, 15, 60 and 120 days) and during aerobic st...

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Veröffentlicht in:The Journal of agricultural science 2020-09, Vol.158 (7), p.574-582
Hauptverfasser: Sá, W. C. C. S., Santos, E. M., de Oliveira, J. S., de Araujo, G. G. L., Perazzo, A. F., da Silva, A. L., Pereira, D. M., César Neto, J. M., Santos, F. N. S., Leite, G. M.
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container_end_page 582
container_issue 7
container_start_page 574
container_title The Journal of agricultural science
container_volume 158
creator Sá, W. C. C. S.
Santos, E. M.
de Oliveira, J. S.
de Araujo, G. G. L.
Perazzo, A. F.
da Silva, A. L.
Pereira, D. M.
César Neto, J. M.
Santos, F. N. S.
Leite, G. M.
description The objective of this study was to evaluate the fermentative characteristics and chemical composition of cochineal nopal cactus silage additives with urea or Lactobacillus buchneri (LB), as well as the association of both additives in four storage times (7, 15, 60 and 120 days) and during aerobic stability, with evaluations at 0, 48 and 96 h. Four silages were used: no additive, addition of 2% urea, addition of LB and addition of 2% urea and LB. The study was divided into two experiments: the first experiment evaluated the silages at different storage times, and the second experiment evaluated the silages during the aerobic stability test. In both experiments, the experimental design was completely randomized in a factorial scheme (4 × 4 and 4 × 3) with three replicates per treatment. After the ensiling process, lactic acid bacteria predominated in all treatments. The concentration of lactic acid increased significantly from 60 days of ensiling. The concentration of acetic acid varied significantly between the storage times only for the silages treated with urea and LB alone. The silage treated with urea maintained a constant pH value up to 120 days of storage. During the 96 h aerobic stability test, no breaking in the stability of silages was observed. The exclusive or associated use of urea and LB promotes improvement in the fermentative characteristics of cochineal nopal cactus silage, without major alterations in the chemical composition or interfering with the aerobic stability of the silages.
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ispartof The Journal of agricultural science, 2020-09, Vol.158 (7), p.574-582
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source Cambridge Journals
subjects Acetic acid
Acids
Additives
Bacteria
Chemical composition
Crops and Soils Research Paper
Design of experiments
Experimental design
Experiments
Fermentation
Laboratories
Lactic acid
Lactic acid bacteria
Microorganisms
Opuntia cochenillifera
Silage
Stability analysis
Stability tests
Urea
Ureas
title Fermentative characteristics and chemical composition of cochineal nopal cactus silage containing chemical and microbial additives
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