| Autor: |
Alex T. Hung, Brian J. Leury, Matthew A. Sabin, Fahri Fahri, Kristy DiGiacomo, Tu-Fa Lien, Frank R. Dunshea |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Animal Nutrition, Vol 7, Iss 1, Pp 198-205 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2405-6545 |
| DOI: |
10.1016/j.aninu.2020.07.004 |
| Popis: |
Two studies were conducted to evaluate the effect of nano chromium picolinate (nCrPic) during heat stress (HS) in sheep. In the initial study, 36 Merino × Poll cross-bred sheep were individually penned and allocated to 3 dietary treatments (0, 400 and 800 μg/kg nCrPic) for 8 wk. Body composition was determined at the beginning and end of the experiment using dual energy X-ray absorptiometry. The sheep remained in their dietary groups but were then placed in metabolic cages and randomly allocated within the dietary group to differing ambient temperature regimes, i.e., thermo-neutral (TN) (n = 18) and HS (n = 18), for 3 wk. Dietary nCrPic had no effect on growth performance and body composition during the initial study conducted under TN conditions. Heat stress decreased average daily feed intake (ADFI) (P = 0.002) whereas sheep under HS had reduced average daily gain (ADG) and indeed lost weight (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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