da Silva Maitê Cardoso Coelho, Ullony Karitha Marques, de Araújo Gediendson Ribeiro, Jorge-Neto Pedro Nacib, Albuquerque Verônica Batista, Caramalac Simone Marques, de Oliveira Alice Rodrigues, Zanella Ricardo, Marques Mariana Groke, Csemark Antonio Carlos, Luczinski Thiago Cavalheri, Frazílio Fabrício de Oliveira, Silva Eliane Vianna da Costa E, de Deco-Souza Thyara
Faculdade de Medicina Veterinária e Zootecnia, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil.
Instituto Reprocon, Campo Grande, MS, Brasil.
Anim Reprod. 2021 Jul 2;18(2):e20210017. doi: 10.1590/1984-3143-AR2021-0017. eCollection 2021.
Among the different methods used for semen collection from domestic cats, the pharmacological collection by urethral catheterization becomes disruptive. Medetomidine is the elected α-adrenoceptor agonist for that, but in several countries, it is not commercially available. This study aimed to evaluate the efficacy of detomidine compared to medetomidine in collecting semen by urethral catheterization in domestic cats. Urethral catheterization was performed on 13 mongrel cats using a disposable semi-rigid tomcat urinary catheter. Of the 19 semen collections performed with medetomidine induction, 94.7% were successful, while with detomidine induction, only 56.3% of 16 were successful. The values semen samples variables were as follows for volume - 10.56 ± 0.4 vs 8.88 ± 0.5 mL, motility - 171.67 ± 0.79 vs 49.77 ± 3.45%, vigor - 4.1 ± 0.03 vs 3.10 ± 0.1 and concentration - 3.24 ± 0.19 vs 2.15 ± 0.13 ×10 sperm/mL respectively for medetomidine and detomidine group. The failure in semen collections with detomidine was mainly due to azoospermic samples, poor urethral relaxation, insufficient volume, or contamination of urine. The sperm concentration was also lower in the detomidine group (P <0.05) when compared to medetomidine. However, when the volume of semen collected was compared, we found no statistical differences. Despite its low performance in collecting semen from cats, detomidine may be an alternative when medetomidine is not accessible.
在家猫精液采集所采用的不同方法中，通过尿道插管进行药物诱导采集具有干扰性。美托咪定是为此选定的α-肾上腺素能受体激动剂，但在一些国家，它没有商业供应。本研究旨在评估在通过尿道插管采集家猫精液方面，右美托咪定与美托咪定相比的效果。使用一次性半刚性雄猫导尿管对13只杂种猫进行尿道插管。在使用美托咪定诱导进行的19次精液采集中，94.7%成功，而在使用右美托咪定诱导的16次采集中，仅56.3%成功。美托咪定组和右美托咪定组精液样本变量值如下：体积分别为10.56±0.4 vs 8.88±0.5 mL，活力分别为171.67±0.79 vs 49.77±3.45%，活力分别为4.1±0.03 vs 3.10±0.1，浓度分别为3.24±0.19 vs 2.15±0.13×10⁶精子/mL。右美托咪定精液采集失败主要是由于无精子样本、尿道松弛不良、体积不足或尿液污染。与美托咪定相比，右美托咪定组的精子浓度也较低（P<0.05）。然而，比较采集的精液体积时，我们未发现统计学差异。尽管右美托咪定在采集猫精液方面表现不佳，但在无法获得美托咪定的情况下，它可能是一种替代选择。
