Effect of resveratrol on growth performance, rectal temperature and serum parameters of yellow-feather broilers under heat stress
Effect of resveratrol on growth performance, rectal temperature and serum parameters of yellow-feather broilers under heat stress
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白藜芦醇对热应激下黄羽肉鸡生长性能及部分血清参数的影响
DOI：
10.1111/asj.13161
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发表时间：
2019-03-01
影响因子：
2
通讯作者：
He, Jianhua
中科院分区：
文献类型：
--
作者：
He, Shaoping;Li, Si;He, Jianhua
本试验旨在研究饲粮中添加白藜芦醇对热应激下黄羽肉鸡生长性能、直肠温度和血清参数的影响。试验选用480只28日龄黄羽肉鸡，随机分为5组，每组6个重复。热中性组（TN）（24 +/- 2℃）饲喂基础饲粮，热应激组（37 +/- 2℃，8 h /d，其余时间24 +/- 2℃）饲喂基础饲粮或基础饲粮中添加200、350和500 mg/kg白藜芦醇，连续14 d。结果显示，与不添加白藜芦醇的热应激组相比，添加白藜芦醇提高了平均日增重（p = 0.001），并降低了第3天开始的直肠温度（p < 0.05）。此外，添加350或500 mg/kg的白藜芦醇降低了（p < 0.05）皮质酮、促肾上腺皮质激素、胆固醇、甘油三酯、尿酸、丙二醛含量，降低了天冬氨酸转氨酶、丙氨酸转氨酶和乳酸脱氢酶的活性，提高了（p < 0.05）三碘甲状腺原氨酸水平、三碘甲状腺原氨酸/甲状腺素比值、总蛋白、谷胱甘肽水平以及碱性磷酸酶、总超氧化物歧化酶活性。过氧化氢酶和谷胱甘肽过氧化物酶，但波动不大。由此可见，在热应激条件下，添加白藜芦醇可通过正向调节血清代谢参数和减轻组织氧化损伤来改善肉仔鸡的生长性能。
This study investigated the effect of dietary resveratrol supplementation on growth performance, rectal temperature, and serum parameters of yellow-feather broilers under heat stress. A total of 480 yellow-feather broilers (28-day-old) were randomly allotted to five groups with six replicates. A thermoneutral group (TN) (24 +/- 2 degrees C) received a basal diet and another four heat-stressed groups (37 +/- 2 degrees C for 8 hr/day and 24 +/- 2 degrees C for the remaining time) were fed the basal diet or basal diet with 200, 350, and 500 mg/kg resveratrol for 14 consecutive days. The results revealed that resveratrol supplementation improved average daily gain (p = 0.001), and decreased (p < 0.05) rectal temperature from d 3 when compared with heat-stressed group without resveratrol. In addition, supplementation with resveratrol at 350 or 500 mg/kg lowered (p < 0.05) the contents of corticosterone, adrenocorticotropic hormone, cholesterol, triglycerides, uric acid, malonaldehyde, and activities of aspartate aminotransferase, alanine aminotransferase, and lactate dehydrogenase, increased (p < 0.05) the levels of triiodothyronine, the ratio of triiodothyronine to thyroxine, total protein, glutathione, and activities of alkaline phosphatase, total superoxide dismutase, catalase, and glutathione peroxidase, though with few fluctuation. In conclusion, supplementation with resveratrol can improve the growth performance by positively regulating serum metabolic parameters and alleviating tissue oxidant damage of broilers under heat stress.