| Autor: |
A-Rang Son, Seon-Ho Kim, Mahfuzul Islam, Michelle Miguel, Ye Pyae Naing, Sang-Suk Lee |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Journal of Animal Science and Biotechnology, Vol 14, Iss 1, Pp 1-14 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2049-1891 |
| DOI: |
10.1186/s40104-023-00961-x |
| Popis: |
Abstract Background This study investigated the effects of inorganic and organic minerals on physiological responses, oxidative stress reduction, and rumen microbiota in Holstein bull calves (123.81 ± 9.76 kg; 5 months old) during short-term heat stress (HS) and recovery periods. Eight Holstein calves were randomly assigned to four treatment groups: no mineral supplementation (Con), inorganic minerals (IM), organic minerals (OM), and high-concentration organic minerals (HOM) and two thermal environments (HS and recovery) using 4 × 2 factorial arrangement in a crossover design of four periods of 35 d. Calves were maintained in a temperature-controlled barn. The experimental period consisted of 14 d of HS, 14 d of recovery condititon, and a 7-d washing period. Results Body temperature and respiration rate were higher in HS than in the recovery conditions (P 0.05). The principal coordinate analysis represented that the overall rumen microbiota was not influenced by mineral supplementation; however, temperature-induced microbial structure shifts were indicated (PERMANOVA: P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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