Asparagopsis taxiformis decreases enteric methane production from sheep
| Autor: | Michael Laurence, Hayley C. Norman, M. G. Wilmot, Nigel W. Tomkins, Rocky de Nys, Robert D. Kinley, Xixi Li, Hannah Bender |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
chemistry.chemical_classification food.ingredient biology Methanogenesis 010604 marine biology & hydrobiology 0402 animal and dairy science 04 agricultural and veterinary sciences biology.organism_classification 040201 dairy & animal science 01 natural sciences Animal science food chemistry Biochemistry Respiration Feedlot Propionate Animal Science and Zoology Organic matter Fermentation Asparagopsis Asparagopsis taxiformis Food Science |
| Zdroj: | Animal Production Science. 58:681 |
| ISSN: | 1836-0939 |
| DOI: | 10.1071/an15883 |
| Popis: | Asparagopsis taxiformis concentrates halogenated compounds that are known to inhibit cobamide-dependent methanogenesis in vitro and, therefore, has potential to mitigate enteric methane production. The present study investigated the effect of Asparagopsis on methane (CH4) production from sheep offered a high-fibre pelleted diet (offered at 1.2 × maintenance) at five inclusion levels of Asparagopsis for 72 days (0% (control), 0.5%, 1%, 2% and 3% organic matter basis as offered). Individual animal CH4 measurements were conducted at 21-day intervals using open-circuit respiration chambers. Asparagopsis inclusion resulted in a consistent and dose-dependent reduction in enteric CH4 production over time, with up to 80% CH4 mitigation at the 3% offered rate compared with the group fed no Asparagopsis (P < 0.05). Sheep fed Asparagopsis had a significantly lower concentration of total volatile fatty acids and acetate, but a higher propionate concentration. No changes in liveweight gain were identified. Supplementing Asparagopsis in a high-fibre diet ( |
| Databáze: | OpenAIRE |
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