断奶奶牛中的夏季扫综合征:病例系列
Rischi Robinson Male Here1,2, Catherine McAloon2, John Donlon1
1Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, Co. Meath, C15 PW93, Ireland.
Irish veterinary journal
|July 16, 2024
概括
牛犊的夏季扫综合征 (SSS) 与高血水平有关,而不是铜毒性或酸性. 需要对肥的应用时间和水平进行进一步的研究.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物健康 动物健康
- 牛犊营养 牛犊营养
背景情况:
- 夏季扫综合征 (Summer Scour Syndrome,简称SSS) 是一种在爱尔兰断奶小牛中新发现的疾病,导致腹,减肥,虚弱,甚至可能导致死亡.
- 临床症状包括胃肠道疾病,有时在第一个放牧季节出现口腔/食道.
- 这项研究旨在描述爱尔兰商业乳制品养小牛中SSS病例的特征.
研究的目的:
- 调查在断奶乳牛犊中夏季冲综合征 (SSS) 的潜在原因.
- 为了区分SSS与其他常见的小牛体疾病,如菌病和寄生性胃肠炎.
- 分析受影响小牛及其环境中的关键生化和营养参数.
主要方法:
- 通过初步检测,调查了五家农场出现不明原因的小牛腹,但不包括菌病和寄生性胃肠炎.
- 收集了农场管理数据,草和缩物样本,以及46只小牛的生物样本,这些样本来自三个案例农场 (CF) 和两个非案例农场 (NCF).
- 分析了液pH和氨,血液氨,铜,和草原原蛋白度.
主要成果:
- 与非病例养殖场 (22-25μmol/L) 相比,在病例养殖场的小牛的血中氨度显著更高 (129-223μmol/L).
- 液的pH值和氨水水平,血液中的铜和,以及草原原蛋白一般都在正常范围内,无论是病例农场还是非病例农场.
- 无机肥被应用在 1-3 周的牧场牧场前,不同于非牧场农场.
结论:
- 铜或的毒性和牛酸性化不太可能是SSS的主要原因.
- 血中氨度升高是SSS病例的一个关键发现.
- 无机化肥在前放牧牧场的时间和应用率需要进一步调查,作为潜在的促成因素.
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