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氨的积累作为一个代理来确定鹿地松鼠 (Ammospermophilus leucurus) 子换频率
Megan M Ellis1, Jourdan E Brune1, Karuna Patil2
1Department of Comparative Medicine, University of Washington, Seattle, Washington.
概括
建议每周更换子,以控制氨水平. 床铺不足会导致氨的快速积累,影响动物福利.
科学领域:
- 兽医科学 兽医科学 兽医科学
- 动物养殖 动物养殖
- 环境生理学环境生理学
背景情况:
- 缺乏基于证据的标准,用于鹿地松鼠 (AGS, *Ammospermophilus leucurus*) 的子更换间隔.
- 需要为AGS住房建立安全的氨水平值.
- 了解影响动物所氨积累的因素的重要性.
研究的目的:
- 为了评估单独的AGS的子氨积累.
- 为了确定影响氨水平的因素,包括床位体积和水消耗.
- 为了确定AGS的最佳子更换间隔.
主要方法:
- 每天测量静态中的内氨量,使用不同的玉米床体积 (1/2, 3/4, 1, 2 qt).
- 根据小鼠毒性研究,当氨量超过50ppm时,子被更换.
- 在两周内,水消耗和氨积累之间的相关性分析.
主要成果:
- 在个别AGS中,内氨含量在个别AGS中具有很大的变化.
- 氨的积累与水的消耗和床位体积有显著的关联.
- 17-18%的AGS与1/2-3/4 qt床铺在7天内超过了50ppm氨.
- 所有具有1-2千床铺的AGS在1周内保持在50ppm氨以下.
- 不是所有2千床上的AGS在2周内保持在50ppm氨以下.
结论:
- 在静态子中单独安置的AGS需要每周更换子,用1qt的床单.
- 床位体积和个人用水量是氨管理的关键因素.
- 在没有频繁的子更换的情况下,目前的住房实践可能无法充分控制AGS的氨水平.
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