Evaluation of testicular artery blood flow by Doppler ultrasonography as a predictor of spermatogenesis in the dog

The present study examines the relationship between reproductive and seminal characteristic with blood flow supply of the testis in male dogs by means of Doppler ultrasonography. Five male dogs were subject to a clinical examination, blood sampling, B-Mode and Doppler ultrasonography of the testis,...

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Bibliographic Details
Published in:Research in veterinary science 2013-10, Vol.95 (2), p.632-637
Main Authors: Zelli, R., Troisi, A., Elad Ngonput, A., Cardinali, L., Polisca, A.
Format: Article
Language:English
Subjects:
Animals
Blood
blood flow
Blood Flow Velocity - physiology
Blood Flow Velocity - veterinary
Blood perfusion
blood sampling
clinical examination
Colour Doppler
correlation
Dog testis
Dogs
Dogs - physiology
Hypo-osmotic swelling test
Male
Men
Pulsed Doppler
semen
Sperm
sperm concentration
Spermatogenesis
Spermatogenesis - physiology
spermatozoa
tail
testes
Testis - blood supply
ultrasonography
Veins & arteries
Veterinary medicine
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Summary:The present study examines the relationship between reproductive and seminal characteristic with blood flow supply of the testis in male dogs by means of Doppler ultrasonography. Five male dogs were subject to a clinical examination, blood sampling, B-Mode and Doppler ultrasonography of the testis, semen evaluation at collections and after storage at 4°C for 24, 48 and 72h in three replicates 30days apart. Peak Systolic Velocity was positively correlated with testicular volume and negatively with live sperm at collections and after 24h. A negative correlation existed between Resistive Index and Pulsatility Index with total and progressive motility at collections and also after 24, 48 and 72h. Resistive Index and Pulsatility Index were also negatively correlated with the percentage of membrane intact sperms with curled tails at collections while the latter was positively correlated with End Diastolic Velocity. Moreover, positive linear correlations of weight with bilateral testicular volume and total sperm concentration and also between age and abnormal sperm at collections and after 24h were established. The results suggest that the Resistive Index and Pulsatility Index seem to be potential markers of seminal quality in dogs.
ISSN:0034-5288
1532-2661
DOI:10.1016/j.rvsc.2013.04.023