不同季节不同类型猪舍环境参数监测及对仔猪生产性能影响的研究

发布时间：2018-01-19 20:41

  本文关键词： 环境参数 哺乳仔猪 断奶仔猪 生产性能　出处：《河北农业大学》2015年硕士论文　论文类型：学位论文

【摘要】：本试验采用环境监测的方法,通过对冬、夏季哺乳仔猪舍和保育舍内主要环境参数进行监测,并对仔猪生产性能进行测定,为改善封闭式猪舍内主要环境参数提供参考,为仔猪创造适宜的生长环境提供理论依据。结果表明:1夏、冬季哺乳仔猪舍二氧化碳、氨气和硫化氢的浓度分别为2220mg/m3和4412mg/m3、2.11mg/m3和10.11mg/m3、0.72mg/m3和2.61mg/m3,保育舍内二氧化碳、氨气和硫化氢的浓度分别为659.56mg/m3和4416.00mg/m3、1.55mg/m3和2.51mg/m3、0.42mg/m3和1.53mg/m3。冬季舍内有害气体浓度显著高于夏季。夏冬两季哺乳仔猪舍内的温度差异不显著,分别为25.91℃和24.47℃,保育舍夏冬两季舍内温度差异极显著,分别为27.87℃和21.07℃。2夏季哺乳仔猪舍内二氧化碳浓度显著高于保育舍,分别为2220.34mg/m3、659.56mg/m3,冬季两类型猪舍内的二氧化碳浓度变化差异不显著,哺乳仔猪舍其他有害气体浓度均显著高于保育舍,同一季节哺乳仔猪舍内温度高出保育舍2~3℃。夏季哺乳仔猪舍和保育舍内湿度存在极显著差异,分别为53.35%和50.18%,冬季哺乳仔猪舍和保育舍内湿度差异不显著。3冬、夏季哺乳仔猪舍和保育舍内有害气体浓度最高值均出现在上午6:00,保育舍冬、夏季温度最高值均出现在中午11:00,哺乳仔猪舍夏季温度最高值出现在18:00,冬季出现在11:00,夏季哺乳仔猪舍和保育舍的湿度最大值均出现在18:00,冬季均出现在6:00。4舍内环境对仔猪生产性能存在显著影响,舍内环境较好的猪舍有利于仔猪生产性能的发挥,能够显著提高哺乳仔猪窝断奶重,提高断奶仔猪的日采食量和平均日增重。
[Abstract]:The environmental monitoring method was used to monitor the main environmental parameters of breast-feeding piglets and nursery houses in winter and summer, and to determine the performance of piglets. In order to improve the main environmental parameters of closed piglets and provide a theoretical basis for piglets to create a suitable growth environment, the results showed that the carbon dioxide in weaning piglets in winter and in winter. The concentrations of ammonia and hydrogen sulfide were 2220 mg / m3 and 4412 mg / m3, 2.11 mg / m3 and 10.11 mg / m3, respectively. The concentrations of CO2, ammonia and hydrogen sulfide in conservation houses were 659.56 mg / m3 and 4416.00 mg / m3, respectively. 1.55 mg / m3 and 2.51 mg / m3. 0.42 mg / m3 and 1.53 mg / m3. The concentrations of harmful gases in winter were significantly higher than those in summer. There was no significant difference in temperature in piglets in summer and winter. It was 25.91 鈩，

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