| Autor: |
Maria Teresa P. Dentinho, Olga C. Moreira, Rui J. B. Bessa |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Forest Systems, Vol 27, Iss 1, Pp e04S-e04S (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2171-9845 |
| DOI: |
10.5424/fs/2018271-11991 |
| Popis: |
Aim of study: To evaluate the impact of Cistus ladanifer L. (rockrose) tannins on ruminal degradability and fermentation characteristics and the use of polyethylene glycol (PEG), as feed additive, to mitigate the anti-nutritional effects of rockrose tannins. Material and methods: Aerial parts of rockrose plants were harvested in March, freeze dried and divided in 4 subsamples which were treated with 0, 25, 50 and 75 g of PEG/kg of dry matter (DM). The mixtures were analysed for chemical composition including total phenolics, total tannins and condensed tannins. In situ rumen organic matter (OM) and N rumen degradability was evaluated using three rumen-cannulated rams and ruminal fermentation pattern (volatile fatty acids (VFA), gas production) was evaluated in vitro using a Rumen Simulation Technique (RUSITEC) apparatus. Main results: In situ experiment indicated that the effective degradability of the OM and N increased linearly (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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