Pulse wave Doppler ultrasound of testicular arteries and their relationship with semen characteristics in healthy bulls

作     者：Alessia Gloria Augusto Carluccio Laura Wegher Domenico Robbe Claudio Valorz Alberto Contri 

作者机构：Faculty of Veterinary MedicineUniversity of TeramoLocalitàPiano D’Accio64100 TeramoItaly Provincial Breeders Federation of TrentoVia delle Bettine 4038121 TrentoItaly 

出 版 物：《Journal of Animal Science and Biotechnology》 (畜牧与生物技术杂志（英文版）)

年 卷 期：2018年第9卷第2期

页      面：319-325页

核心收录：

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 0832[工学-食品科学与工程（可授工学、农学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 0905[农学-畜牧学] 0906[农学-兽医学] 09[农学] 0703[理学-化学] 0836[工学-生物工程] 

基　　金：the Provincial Breeders Federation of Trento for their support 

主　　题：Bull Pulse wave Doppler Sperm morphology Testis Ultrasound 

摘      要：Background: Semen evaluation is used to estimate the testicular function. In bulls, the spermatozoa present in the ejaculate are the result of a process that begun more than 2 mo earlier, bequeathing a delayed depiction of the actual function of the testis. Since testis vascularization might be critical for the gonad function, selected pulse wave Doppler ultrasound parameters were assessed in this study, for instance the peak systolic velocity, the end diastolic velocity and the resistive index of the testicular artery along the spermatic cord, the marginal portion of the testicular artery and the intratesticular branches of the testicular artery both in healthy adult and young *** between these parameters and characteristics of semen that was collected numerous times, before and after the Doppler ultrasound ***: The peak systolic velocity and the end diastolic velocity measured in the testicular artery along the spermatic cord(supratesticular artery – SA) were variable among the bulls and within individual bulls, likely due to the convoluted course of the vessel. The resistive index was found highly repeatable in the same bull. A reduction in the resistive index was found between the supratesticular artery and the marginal portion of the testicular artery(P 0.01), and between the marginal portion of the testicular artery and the intratesticular branches of the testicular artery(P 0.05). No differences were recorded for the pulse wave Doppler ultrasound parameters in young bulls compared with adults. A significant correlation was found between the resistive index of the marginal portion of the testicular artery and total sperm in the ejaculate(r = 0.516, P 0.05), the immature sperm(r = 0.462, P 0.05), the teratoid sperm(r = 0.375, P 0.05), and the Dag defect sperm(r = 0.389, P 0.05). Similarly, the resistive index of the intratesticular branches of the testicular artery were found correlated with the total sperm number in