Pinho R O, Camilo B S, Lima Dma, Villadiego Fac, Vergara Jcm, Shiomi H H, Cardoso R E, Lopes P S, Guimarães Sef, Guimarães J D
Federal University of Viçosa (UFV), Viçosa, Minas Gerais, Brazil.
University of Viçosa (UNIVICOSA), Viçosa, Minas Gerais, Brazil.
Reprod Domest Anim. 2018 Apr;53(2):393-400. doi: 10.1111/rda.13119. Epub 2017 Dec 1.
The objective was to study the use of ultrasound as a complementary test in the breeding soundness evaluation in male pigs and study the pattern of echogenicity of the testicular parenchyma in boars of different racial groups. Twenty-six adult boars from four different racial groups were used, 10 from the Piau breed (group 1), four from the commercial and finishing group (group 2), six Pietrain breed (group 3) and six from the Duroc breed (group 4). All animals were evaluated for breeding soundness evaluation and the ultrasound examination of the testicles. The groups of animals that were evaluated showed no difference in the main semen parameters that were evaluated, except for the sperm volume, concentration of the ejaculated sperm and the supravital staining; the lowest figures were for the animals from the Piau breed (group 1). In relation to the testicular biometrics, Duroc animals (group 4) had a greater scrotal width compared to the other groups. But when we assessed the intensity of pixels of the testicles, there was a difference between groups. The groups 2 (finishing animals), 3 (Pietrain) and 4 had no difference between themselves. Group 3 had greater pixel intensity in relation to group 1. Of the 26 animals studied, five showed an abnormality during ultrasound evaluation, like hydrocele, hyperechoic mass in the testicular parenchyma, cyst in the head of the epididymis and the presence of fluid in the head and tail of the epididymis. The various animal groups studied did not differ in the principal reproductive parameters evaluated, showing that despite the great variability of reproductive traits between breeds and within the same breed, the breeding soundness evaluation, the more complete it is, is essential for the selection of breeders and the ultrasonography of the reproductive system becomes an important addition in this examination.
目的是研究超声作为公猪繁殖健全性评估的辅助检查方法，并研究不同种族群体公猪睾丸实质的回声模式。使用了来自四个不同种族群体的26头成年公猪，10头来自皮奥伊品种（第1组），4头来自商品育肥组（第2组），6头皮特兰品种（第3组）和6头杜洛克品种（第4组）。对所有动物进行了繁殖健全性评估和睾丸超声检查。所评估的动物组在主要精液参数方面没有差异，但精液体积、射出精子浓度和体外活体染色除外；皮奥伊品种（第1组）的动物这些参数最低。关于睾丸生物测量，杜洛克品种的动物（第4组）阴囊宽度比其他组更大。但在评估睾丸像素强度时，各群组之间存在差异。第2组（育肥动物）、第3组（皮特兰）和第4组之间没有差异。第3组相对于第1组具有更高的像素强度。在研究的26头动物中，5头在超声评估期间显示出异常，如鞘膜积液、睾丸实质内高回声团块、附睾头部囊肿以及附睾头部和尾部有液体。所研究的不同动物组在评估的主要生殖参数方面没有差异，表明尽管品种之间以及同一品种内生殖性状差异很大，但繁殖健全性评估越全面，对种猪选择就越重要，而生殖系统超声检查成为这项检查的重要补充。
