非营养性抗热应激剂对热应激种公牛生产性能及血液生化指标的影响

摘要

选用12头延边黄牛、延黄牛和西门塔尔牛肉种公牛作为研究对象,在夏季热应激时往日粮中添加一定比例的含小苏打、瘤胃素、乙酸钠等非营养素性抗热应激剂,试验期为30 d.观察并统计它们的干物质采食量、精液产量,检测精液品质；在试验开始和结束时采集血液样品并检测其相关离子、酶和激素的含量.结果发现,与对照组相比较,添加非营养性抗热应激剂的试验组显著提高了种公牛的干物质采食量、精液产量与精液品质.说明所添加的非营养性抗热应激剂能在一定程度上减缓热应激对肉种公牛的不利影响.%12 bulls which belong to Yanbian cattle, Yanhang cattle and Simmental were selected and divided into two groups. The experimental group was given non-nutritional heat stress alleviators during the heat stress in summer. The experiment lasted 30 days, the dry matter intake ( DMI) , semen volume per ejaculate (VOL) and semen quality were measured. At the beginning and end of the experiment, their blood was collected to determine the contents of related ions,hormone and enzymes in blood. The results indicate that non-nutritional heat-stress alleviating supplement can relieve the adverse effect of heat stress on bulls.