中国畜牧兽医 ›› 2025, Vol. 52 ›› Issue (2): 655-667.doi: 10.16431/j.cnki.1671-7236.2025.02.016

• 营养与饲料 • 上一篇    

姜黄素对热应激条件下延边黄牛育成牛生长性能、饲料养分表观消化率和血液指标的影响

钟明1, 耿龙君2, 崔莲花1,3, 徐紫嫣1, 严昌国2, 冯健1, 蔡洪范2, 张旭1   

  1. 1. 延边大学农学院, 延吉 133002;
    2. 延边弘朝智慧畜牧有限公司, 延吉 133400;
    3. 东北寒区肉牛科技创新教育部工程研究中心, 延吉 133002
  • 收稿日期:2024-08-30 发布日期:2025-01-24
  • 通讯作者: 崔莲花 E-mail:cuilianhua@ybu.edu.cn
  • 作者简介:钟明,E-mail:2353965954@qq.com;耿龙君,E-mail:893801944@qq.com。钟明和耿龙君对本文具有同等贡献,并列为第一作者。
  • 基金资助:
    吉林省科技厅肉牛产业化发展重大科技专项(YDZJ202203CGZH043);吉林省农业关键核心技术示范推广项目(JARS-2024-0703);吉林省教育厅重点科学研究项目(JJKH20230629KJ)

Effects of Curcumin on Growth Performance, Apparent Digestibility of Feed Nutrients and Blood Indexes of Yanbian Yellow Breeding Cattle Under Heat Stress

ZHONG Ming1, GENG Longjun2, CUI Lianhua1,3, XU Ziyan1, YAN Changguo2, FENG Jian1, CAI Hongfan2, ZHANG Xu1   

  1. 1. College of Agriculture, Yanbian University, Yanji 133002, China;
    2. Yanbian Hongchao Wisdom Animal Husbandry Co., Ltd., Yanji 133400, China;
    3. Northeast Cold Region Beef Cattle Science and Technology Innovation Engineering Research Center of the Ministry of Education, Yanji 133002, China
  • Received:2024-08-30 Published:2025-01-24

摘要: 【目的】 本研究旨在探讨姜黄素(curcumin,CUR)对热应激条件下育成牛生长性能、营养物质表观消化率和血清生化指标的影响,探究热应激条件下肉牛饲粮中适宜的姜黄素添加水平。【方法】 选取健康、体重接近(286.36 kg±3.95 kg)的32头延边黄牛育成牛,随机分成4组,每组8个重复,每个重复1头牛。各组姜黄素添加水平分别为0、100、200、300 mg/kg DM饲粮,分别为对照组、100 CUR组、200 CUR组、300 CUR组。预饲期7 d,正式试验期30 d。试验期间测定每日各时间点牛舍温度及相对湿度,计算温湿指数(temperature humidity index,THI)(试验期间牛舍THI≥72,试验牛均处于热应激状态);试验第31天早上,试验牛称重、测量体尺指标;颈静脉采血,检测血清生化指标;采用全收粪法收集新鲜粪便,测定饲料养分表观消化率。【结果】 与对照组相比,200 CUR组牛平均日增重、体斜长和胸围均显著提高(P<0.05),料重比显著降低(P<0.05);饲料粗脂肪、中性洗涤纤维和酸性洗涤纤维的表观消化率均显著提高(P<0.05);血清白蛋白、甲状腺素含量显著提高(P<0.05),谷草转氨酶、谷丙转氨酶活性、甘油三酯含量显著降低(P<0.05);丙二醛水平显著降低(P<0.05)。与对照组相比,各试验组牛体高、粗蛋白质消化率、血清总蛋白、球蛋白含量均显著提高(P<0.05);血清热休克蛋白70、皮质醇水平均显著降低(P<0.05);100 CUR组牛血清免疫球蛋白A显著提高(P<0.05);200 CUR和300 CUR组牛血清超氧化物歧化酶、谷胱甘肽-过氧化物酶活性及总抗氧能力均显著提高(P<0.05)。【结论】 在热应激条件下,饲粮中添加200 mg/kg DM 姜黄素可以提高育成期延边黄牛的生长性能和饲料养分表观消化率,提高机体抗氧化能力。

关键词: 姜黄素; 延边黄牛; 血液指标; 生长性能; 热应激

Abstract: 【Objective】 This study aimed to investigate the effects of curcumin (CUR) on growth performance,apparent digestibility of nutrients and serum biochemical indexes of breeding cattle under heat stress condition,and to explore the appropriate curcumin supplementation level in beef cattle diets under heat stress condition. 【Method】 Thirty-two healthy Yanbian Yellow breeding cattle,weighing 286.36 kg±3.95 kg,were randomly divided into four groups,with eight replicates in each group and one cow in each replicate.The curcumin supplemental levels for each group were set at 0,100,200 and 300 mg/kg DM diet respectively,named as control group,100 CUR,200 CUR,and 300 CUR groups.The prefeeding period was 7 days and the test period was 30 days.During the experiment,the temperature and relative humidity of the cowshed were measured at different time points every day,and the temperature and humidity index (THI) was calculated.During experimental period, THI≥72,the experimental cattle were considered to be in a state of heat stress.On the morning of the 31st day,the experimental cattle were weighed and their body size was assessed.Blood was drawn from the jugular vein to test serum biochemical indicators.The total fecal collection method was used to collect fresh feces for the measurement of apparent digestibility of feed nutrients. 【Result】 Compared to control group,cattle in 200 CUR group exhibited significant improvements in average daily weight gain,body depth,and chest circumference (P<0.05),alongside a notable reduction in feed-to-gain ratio (P<0.05).The apparent digestibility of crude fat,neutral detergent fiber and acid detergent fiber were significantly enhanced (P<0.05),serum albumin and thyroid hormone levels were markedly elevated (P<0.05),whereas activities of glutamate-oxaloacetic transaminase and glutamate-pyruvic transaminase as well as triglyceride content were significantly diminished (P<0.05),furthermore,malondialdehyde levels showed a significant decrease (P<0.05) in 200 CUR group.Compared to control group,the body height,crude protein digestibility,serum total protein and globulin contents were significantly increased (P<0.05),the levels of heat shock protein 70 and cortisol were significantly decreased (P<0.05) in three experimental groups.Serum immunoglobulin A was significantly increased in 100 CUR group (P<0.05).The activities of superoxide dismutase,glutathione peroxidase,and total antioxidant capacity in bovine serum were significantly elevated in 200 CUR and 300 CUR groups (P<0.05). 【Conclusion】 Adding 200 mg/kg DM curcumin to the diet of Yanbian Yellow breeding cattle during heat stress could improve their growth performance,apparent digestibility of feed nutrients,and antioxidant capacity.

Key words: curcumin; Yanbian Yellow cattle; blood index; growth performance; heat stress

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