De Amicis Ippolito, Fusi Jasmine, Marruchella Giuseppe, Zedda Maria T, Mazzatenta Andrea, Robbe Domenico, Carluccio Augusto
Faculty of Veterinary Medicine, Università degli Studi di Teramo, Località Piano D'Accio, 64100 Teramo, Italy.
Department of Veterinary Medicine, Università degli Studi di Milano, Via dell'Università, 6, 26900 Lodi, Italy.
Animals (Basel). 2021 Sep 22;11(10):2762. doi: 10.3390/ani11102762.
This study investigated the postpartum (PP) uterine involution in nine multiparous Martina Franca jennies with at term, normal, and singleton foaling. Transrectal ultrasonography performed at Days 1, 3, 7, 14, 21, and 28 showed that the uterine tip diameters did not differ between the post-pregnant (PPH) and non-post-pregnant uterine horns (NPPH), whereas the diameter of the middle PPH was larger than the NPPH until Day 7 ( < 0.05). The diameter of the corpora-cornual junction resulted larger in the PPH than NPPH at Day 7 ( < 0.05). At Day 3, the microcaruncolae were not detected. Endometrial glands (GL) number increased, with the highest value on Day 28. Endometrial GL area and perimeter decreased ( < 0.001) from Day 1 to Day 28. Epithelial thickness increased from Days 1-3 to Day 7 ( < 0.001), and concurrently with the foal heat to Day 14 ( < 0.001), with a decrease at Days 21-28. A marked neutrophils reduction on Day 7 and eosinophil increase from the first three days to Days 7-14 was observed. The results suggest that, in Martina Franca jennies with normal foaling, the PP uterine involution can be considered complete on Day 14.
本研究调查了9匹经产的马尔蒂纳·弗兰卡母驴足月、正常单胎产驹后的子宫复旧情况。在产后第1、3、7、14、21和28天进行经直肠超声检查，结果显示，妊娠后子宫角（PPH）和未妊娠子宫角（NPPH）的子宫尖端直径无差异，而在第7天之前，PPH中部直径大于NPPH（P<0.05）。在第7天，PPH的宫角结合部直径大于NPPH（P<0.05）。在第3天，未检测到微肉阜。子宫内膜腺体（GL）数量增加，在第28天达到最高值。从第1天到第28天，子宫内膜GL面积和周长减小（P<0.001）。上皮厚度从第1 - 3天到第7天增加（P<0.001），并在产后发情期至第14天持续增加（P<0.001），在第21 - 28天减小。观察到在第7天中性粒细胞显著减少，嗜酸性粒细胞从最初三天到第7 - 14天增加。结果表明，在正常产驹的马尔蒂纳·弗兰卡母驴中，产后子宫复旧可在第14天视为完成。
