We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Grape seed extract and chromium nicotinate reduce impacts of heat stress in Simmental × Qinchuan steers.
- Authors
Chen, Huiyuan; Zhen, Jifu; Wu, Zhaoliang; Li, Xiaomin; Liu, Shimin; Tang, Zhiru; Sun, Zhihong
- Abstract
To assess the impacts of grape seed extract (GSE) fed with or without chromium nicotinate (CN) on beef steers under heat stress conditions, 40 Simmental × Qinchuan steers (400 ± 10 days old; 410 ± 8.0 kg) were randomly assigned to one of four diets (n = 10 per group): basal diet (CON group); basal diet + 33 mg/day CN (CN group); basal diet + 65 mg/kg DM GSE (GSE group); and basal diet + 33 mg/day CN + 65 mg/kg DM GSE (CN + GSE group). This study was conducted in summer and the steers were housed in outdoor shaded pens (10 steers/pen) and fed individually. The experiment lasted for 35 days, the first 7 days for diet and housing condition adaptation. The amount of feed intake was recorded daily; individual bodyweight was recorded on Days 8, 22, and 36. On Day 36 before feeding, six steers per group were slaughtered for collection of blood and tissue samples. Average daily liveweight gain and dry matter intake of steers were increased by the GSE, CN, and CN + GSE treatments (P < 0.05). Dietary treatments increased the activities of glutathione peroxidase and total superoxide dismutase in plasma (P < 0.05) and plasma concentration of interleukin 10 on Days 22 and 36 (P < 0.05), whereas decreased plasma concentration of tumour necrosis factor-α on Day 22 (P < 0.05). Overall, supplementation of GSE alone or with CN had positive effects on the growth performance of steers under heat stress conditions. Heat stress brings numerous negative impacts to beef production. This study showed that grape seed extract alone, and with chromium nicotinate, had positive effects on the growth performance of steers through improving intestinal mucosa morphology, enhancing antioxidant capacity and inhibiting inflammatory reaction. Therefore, grape seed extract can be used as a promising anti-heat stress agent for beef production.
- Subjects
GRAPE seed extract; BEEF cattle; CHROMIUM; BLOOD collection; OXIDANT status; INTESTINAL mucosa
- Publication
Animal Production Science, 2019, Vol 59, Issue 10, p1868
- ISSN
1836-0939
- Publication type
Article
- DOI
10.1071/AN17152