Effects of a fibrolytic enzyme and bacterial inoculants on the fermentation, chemical composition and aerobic stability of ensiled potato hash
| Autor: | T. Langa, J.J. Baloyi, T.F. Mutavhatsindi, B.D. Nkosi |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Bran
Silage pH water soluble carbohydrates 0402 animal and dairy science 04 agricultural and veterinary sciences ruminant Biology biology.organism_classification 040201 dairy & animal science Deterioration fibre nutrients pH ruminant water soluble carbohydrates Agronomy Ruminant nutrients fibre 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Animal Science and Zoology Fermentation Food science Deterioration Sugar Chemical composition Microbial inoculant Anaerobic exercise |
| Zdroj: | South African Journal of Animal Science, Volume: 48, Issue: 2, Pages: 244-252, Published: 2018 South African Journal of Animal Science; Vol 48, No 2 (2018); 244-252 |
| ISSN: | 2221-4062 0375-1589 |
| Popis: | The study was conducted to evaluate the effects of adding a fibrolytic enzyme in combination with bacterial inoculants on the fermentation, chemical composition and aerobic stability of ensiled potato hash (PH). Potato hash silage (PHS) was produced by mixing 800 g PH/kg and 200g wheat bran (WB)/kg. The mixture was ensiled with either no additive or enzyme Celluclast (low or high dose) or bacterial inoculants (Emsilage and Silosolve). These treatment combinations were produced: i) no additive (control); ii) Celluclast low dose (CLD); iii) Celluclast high dose (CHD); iv) Emsilage (EMS); v) CLD + EMS; vi) CHD + EMS; vii) Silosolve (SLS); viii) CLD + SLS; and ix) CHD + SLS. These treatments were ensiled in 81 x 1 L anaerobic jars for 90 days with nine replicates per treatment. Three samples per treatment were collected before ensiling and after 90 days’ ensiling, were analysed for fermentation characteristics and chemical composition. In addition, samples of day 90 were subjected to an aerobic stability test, where they were exposed for five days. Enzyme addition reduced fibre, thus making more sugar available for fermentation. The combination of CHD and EMS reduced silage pH, thus preserving the silage compared with other treatment combinations. Enzyme addition (used at low and high dose), and bacterial inoculants improved fermentation. Enzyme addition improved the chemical composition, but impaired the aerobic stability of PHS. Further work to test these findings on animal performance is warranted. Keywords: Deterioration, fibre, nutrients, pH, ruminant, water soluble carbohydrates |
| Databáze: | OpenAIRE |
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