在哺乳期使用胆性淋巴激素的治疗抑制了母猪在断奶后的雌激素表达
Arthur Martelli1, Monike Willemin Quirino2, Michele Dezordi Franz2
1Mestrado e Doutorado Profissional em Produção e Sanidade Animal (PGPSA) - Instituto Federal Catarinense, Araquari, SC, Brazil; Seara Alimentos, Seara, SC, Brazil.
Domestic animal endocrinology
|October 22, 2025
概括
在哺乳期服用马类胆性激素 (eCG) 和人类胆性激素 (hCG) 有效地延迟了母猪的断奶后雌激素. 这些激素治疗显著降低了雌激素的表达,并维持了孕激素水平,改善了生殖管理.
科学领域:
- 生殖生物学 生殖生物学
- 动物科学动物科学
- 内分泌学 在内分泌学.
背景情况:
- 断奶后的麻醉是猪生产中常见的挑战,影响生殖效率.
- 荷尔蒙干预措施正在探索,以管理雌性表达和优化繁殖窗口.
研究的目的:
- 评估在哺乳期服用不同剂量的eCG和hCG的疗效,以抑制母猪的断奶后雌激素的作用.
- 评估这些激素治疗对雌激素发作和卵巢活动的影响.
主要方法:
- 62只母猪被分配到对照组 (盐水),500 IU eCG/hCG或1000 IU eCG/hCG治疗组.
- 与断奶 (0日) 相比,在-7日和-4日给予激素.
- 在屠宰后进行了雌激素检测,血清孕激素分析和卵巢评估.
主要成果:
- 与对照组 (90.0%) 相比,eCG/hCG治疗组 (9.5-23.8%) 的雌激素表达显着较低.
- 断奶后+6天的血清孕激素水平在接受治疗的母猪中较高.
- 卵巢结构 (黄体体) 在所有组中都是可比的.
结论:
- 500 IU和1000 IU的eCG和hCG都有效地抑制了母猪在断奶后至少13天的雌性体表达.
- 哺乳期的激素治疗为管理猪生殖周期提供了一个可行的策略.
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