同性影响晚期怀孕猪的乳腺发育
Chantal Farmer1, Jakob C Johannsen2, Caroline Gillies3
1Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College, Sherbrooke, QC, CanadaJ1M 0C8.
Translational animal science
|April 4, 2024
概括
子的乳腺发育较低,细胞增殖较低,与妊娠末期的多胞胎母猪相比. 猪乳腺发育的这些差异影响了潜在的奶产和管理策略.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 比较生理学比较生理学
背景情况:
- 均等性显著影响雌性哺乳动物的生理适应.
- 乳腺发育对于成功的哺乳期和后代的生存至关重要.
- 了解猪乳腺组织的平价驱动的变化对于优化生产至关重要.
研究的目的:
- 为了比较乳腺发育在和多母猪之间.
- 为了研究乳腺组织组成和细胞增殖的差异.
- 评估平价与关键生理标志物之间的关系.
主要方法:
- 乳腺副体和外副体组织质量的比较.
- 分析乳腺组织组成 (脂肪,干物质,蛋白质,DNA,RNA).
- 组织学评估气泡膜光环周长和Ki67扩散标志物.
- 测量血清IGF-1,葡萄糖,自由脂肪酸和尿素.
主要成果:
- 与母猪相比,的乳腺外和外组织总量较少.
- 吉尔特的帕伦基马组织具有更高的脂肪/干物质和更低的蛋白质/DNA/RNA含量.
- 膜亮度周长在子中较大,但上皮细胞增殖率 (Ki67) 较低.
- 的IGF-1循环水平高于多雌性母猪.
结论:
- 均等性对猪的乳腺发育有深远的影响.
- 子具有较不发达的乳腺组织,细胞活动减少.
- 这些发育差异可能会影响乳腺功能和乳生产潜力.
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