Effect ofLactobacillus plantarum‘KR107070’ and a propionic acid-based preservative on the fermentation characteristics, nutritive value and aerobic stability of alfalfa-corn mixed silage ensiled with four ratios
| Autor: | David B. Hannaway, Musen Wang, Zhu Yu, Zhe Wu |
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| Rok vydání: | 2017 |
| Předmět: |
Preservative
biology Formic acid Silage 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Plant Science biology.organism_classification 040201 dairy & animal science Lactic acid chemistry.chemical_compound chemistry Agronomy Sodium propionate 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Fermentation Food science Ammoniacal nitrogen Agronomy and Crop Science Ecology Evolution Behavior and Systematics Lactobacillus plantarum |
| Zdroj: | Grassland Science. 64:51-60 |
| ISSN: | 1744-6961 |
| DOI: | 10.1111/grs.12178 |
| Popis: | The effect of Lactobacillus plantarum ‘KR107070’ and a propionic acid-based preservative on the quality and aerobic stability of alfalfa-corn mixed silage ensiled with four ratios was evaluated. A 4 × 4 factorial arrangement was used in a completely randomized design in this study. The chopped alfalfa and corn were made into four alfalfa to corn ratios (containing 20, 40, 60 and 80% corn), each of which was treated with (i) distilled water; (ii) 1 × 106 colony forming units per g of L. plantarum ‘KR107070’; (iii) a chemical additive consisting of 0.24% propionic acid, 0.24% sodium propionate and 0.18% formic acid; (iv) a combination of (ii) and (iii). Treated forages mixture was ensiled with triplicate in a 5-L polythene bucket for 180 days. At silo opening, the fermentation characteristics of silage were enhanced with a lower pH value, higher lactic acid content and lower ammoniacal nitrogen concentration and its relative feed value decreased, with a higher ratio of corn for all treatments. The application of a chemical additive alone, or in combination with L. plantarum ‘KR107070’, decreased ammoniacal nitrogen concentrations and increased water soluble carbohydrates contents than control or L. plantarum ‘KR107070’ for each silage of four ratios, in addition to enhancing the aerobic stability of 60 and 80% corn silages compared to L. plantarum ‘KR107070’. The 60% corn silage, treated with combining 0.24% propionic acid, 0.24% sodium propionate and 0.18% formic acid with L. plantarum ‘KR107070’, is better in terms of conservation quality and aerobic stability. |
| Databáze: | OpenAIRE |
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