Benefits of the inclusion of açai oil in the diet of dairy sheep in heat stress on health and milk production and quality
| Autor: | Gabriela Campigotto, Daiane S Dos Santos, Vanderlei Klauck, Marcelo Vedovatto, Roger R. Gebert, Roger Wagner, Carine F. Souza, Davi F. Alba, Matheus D. Baldissera, Aleksandro S. Da Silva, Ingrid Duarte dos Santos, João H. Reis, Ana Luiza Bachmann Schogor |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
food.ingredient Antioxidant Euterpe Globulin Physiology 030310 physiology medicine.medical_treatment Sheep Diseases Heat Stress Disorders 010603 evolutionary biology 01 natural sciences Biochemistry Soybean oil 03 medical and health sciences chemistry.chemical_compound food Animal science Lactation medicine Animals Plant Oils Dry matter 0303 health sciences Sheep biology Fatty Acids food and beverages biology.organism_classification Blood Cell Count Diet Açaí oil Milk medicine.anatomical_structure chemistry Dietary Supplements Urea biology.protein Female Lipid Peroxidation General Agricultural and Biological Sciences Developmental Biology |
| Zdroj: | Journal of Thermal Biology. 84:250-258 |
| ISSN: | 0306-4565 |
| DOI: | 10.1016/j.jtherbio.2019.07.007 |
| Popis: | The objective of this study was to determine whether the addition of acai (Euterpe oleracea) oil in the diets of lactating sheep under heat stress exerted beneficial effects on health as well as milk production and quality. Eighteen multiparous Lacaune sheep (2 or 3 parities; 28–30 days of lactation; average milk production of 1.7 L/sheep/day) were stratified by parity and milk production and were assigned randomly to 1 of 2 treatments (9 sheep/treatment): diet supplemented with 2% of soybean oil (SOY) or 2% of acai oil (ACAI) in the concentrate for 14 days. The amount of oil added in the diet was equivalent to 0.65% of the total diet (dry matter basis). Blood and milk samples were collected on days 1, 10 and 14. On day 14, the ACAI group sheep had lower serum concentrations of leukocytes, neutrophils, and lymphocytes than did the SOY group sheep. On day 14, ACAI group sheep had lower serum concentration of triglycerides and urea, milk concentration of fat and total solid and milk lipid peroxidation than did SOY group sheep. However, on day 14, ACAI group sheep had higher serum concentrations of glucose and globulin, serum and milk antioxidant capacity against peroxyl radicals, milk production and productive efficiency than did SOY group sheep. The fatty acids profile in milk did not differ between groups. These data suggest that acai oil improved the antioxidant activity in serum and milk and improved milk production and quality in dairy sheep under heat stress. |
| Databáze: | OpenAIRE |
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