Jorge Fabiana M G, Donoso Flavia Maria Pia Montenegro, Alcobaça Mayla Magalhães de Oliveira, Cristofoli Marilu, Passos Nunes Fernanda B, Pizzutto Cristiane S, Assis Neto Antonio Chaves de
Department of Surgery, School of Veterinary Medicine and Animal Science of São Paulo University, São Paulo 05508-270, Brazil.
A Z Nunes & Cia Ltda ME, Itu 13301-521, Brazil.
Animals (Basel). 2023 Jan 27;13(3):438. doi: 10.3390/ani13030438.
Capybaras are the largest rodents cohabiting with humans within urban and peri-urban green areas and are known by their prolificity. Surgical contraception has been recommended by official organizations as a way to control capybara populations in areas of zoonotic disease transmission, but little data are available concerning surgical anatomy. To obtain objective anatomical descriptions related to reproductive organs, eight female capybaras cadavers were dissected. The stratigraphy of the lateral (flank) and ventral, post-umbilical (on the linea alba) abdominal wall is described as well as the vascular anatomy of reproductive organs and their syntopy with the abdominal viscera. We commented on the access to the uterine tubes and uterine horns for each approach, and for better description of abdominal wall stratigraphy, abdominal ultrasonography was performed in one live female. All of the animals were provenient from "in situ" population management projects that were properly authorized. Similar abdominal wall stratigraphy was found in comparison to domestic mammals, with emphasis on a thick cutaneous muscle, a thin linea alba, and a large, loose cecum. The uterine tubes were easily accessed by bilateral laparotomy, allowing tubal removal/ligation procedures, while uterine horn exposure was more readily reached by a midline post umbilical celiotomy, favoring horn ligature and hysterotomy techniques. This study can help achieve more efficient contraceptive surgeries in capybaras, reducing the total surgical time and enhancing animal welfare.
水豚是生活在城市和城郊绿地中与人类共存的最大啮齿动物，以其繁殖力强而闻名。官方组织建议采用手术避孕作为控制人畜共患病传播地区水豚种群数量的一种方法，但关于手术解剖学的数据却很少。为了获得与生殖器官相关的客观解剖学描述，解剖了8只雌性水豚尸体。描述了侧（腹侧）腹壁和腹侧脐后（白线处）腹壁的层次结构，以及生殖器官的血管解剖及其与腹腔脏器的毗邻关系。我们对每种入路进入输卵管和子宫角的方法进行了评论，并且为了更好地描述腹壁层次结构，对一只活体雌性水豚进行了腹部超声检查。所有动物均来自经过适当授权的“原地”种群管理项目。与家养哺乳动物相比，发现了相似的腹壁层次结构，重点是厚的皮肌、薄的白线和大而松弛的盲肠。通过双侧剖腹术很容易进入输卵管，从而可以进行输卵管切除/结扎手术，而通过脐后中线剖腹术更容易暴露子宫角，有利于子宫角结扎和子宫切开术。本研究有助于在水豚身上实现更高效的避孕手术，减少总手术时间并提高动物福利。
