Relação entre perímetro escrotal e concentração espermática em cães, clinicamente normais, da raça Pastor Alemão

Cortez, Annira Aquino; Aquino-Cortez, Annice; Silva, A.R.; Cardoso, R. C. S.; Silva, L.D.M.

doi:10.1590/s0102-09352002000500017

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…The pH values reported for the semen of healthy dogs vary from 6.3 to 6.7. 39 In this study, the pH values of the semen in healthy and chronically infected dogs were within the reported range, 6.5 and 6.7, respectively. The progressive motility, sperm concentration, abnormalities of spermatozoids, and viability exhibited means (in both healthy control and chronically infected dogs) that are in accordance with the reference values.…”

Section: Discussionsupporting

confidence: 72%

“…These data are similar to those obtained by Olar and others 35 who found a high correlation (r = 0.75) between testicular volume and sperm ejaculated daily in dogs. However, the data are discordant with those of England 38 and Cortez and others, 39 whose results showed low correlations between the parameters. The mass motility parameter showed means of 3.5 and 3.6 in healthy and chronically infected chagasic dogs, respectively.…”

Section: Discussionsupporting

confidence: 50%

“…The progressive motility, sperm concentration, abnormalities of spermatozoids, and viability exhibited means (in both healthy control and chronically infected dogs) that are in accordance with the reference values. 30,39,40 These results indicate that chronic infection by T. cruzi had no effect on the reproductive parameters of male dogs. This result differs from the findings reported by other authors who carried out experiments in Leishmania chagasi-infected dogs, 20 T. congolense-infected New Zealand White rabbits, 21 and T. brucei-infected West African dwarf bucks, 18 or red fronted gazelles 22 during the acute stage of infection.…”

Section: Discussionmentioning

confidence: 82%

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Sperm Morphological Features Associated with Chronic Chagas Disease in the Semen of Experimentally Infected Dogs

Rodríguez-Morales

Pedro-Martínez

Hernández-Pichardo

et al. 2014

The American Journal of Tropical Medicine and Hygiene

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Abstract. The presence of trypanosomatids in the reproductive systems of different mammals (causing genital lesions in the acute stage of the disease) may predispose the animals to low semen quality. However, there are no studies examining the alterations in the sperm morphological features in the chronic stage of Trypanosoma cruzi infection. Knowledge of these aspects is important to understand the other ways of transmission of the Chagas disease. Progressive motility, mass motility, concentration, and sperm morphology of 84 ejaculates of dogs that were chronically infected with T. cruzi were evaluated. Most of the findings were consistent with the reference values and with those obtained from healthy control dogs. The scrotal circumference was not correlated with spermatozoa concentration in the infected animals. In conclusion, the T. cruzi Ninoa (MHOM/MX/1994/Ninoa) strain does not cause significant alterations in the semen quality of dogs experiencing chronic Chagas disease (at concentrations of 5

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Section: Discussionsupporting

confidence: 72%

Section: Discussionsupporting

confidence: 50%

Section: Discussionmentioning

confidence: 82%

See 1 more Smart Citation

Sperm Morphological Features Associated with Chronic Chagas Disease in the Semen of Experimentally Infected Dogs

Rodríguez-Morales

Pedro-Martínez

Hernández-Pichardo

et al. 2014

The American Journal of Tropical Medicine and Hygiene

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The use of Doppler ultrasound as a potential fertility predictor in male goats

Ribeiro¹,

Santos²,

França³

et al. 2020

Turk J Vet Anim Sci

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The aim of the current study is to correlate Doppler flowmetry with andrological features in male goats belonging to different age and fertility groups. Thirty native crossbreed bucks bred in Northeastern Brazil were subjected to B-mode, spectral and color Doppler ultrasound, as well as to andrological examinations. Color Doppler ultrasound was used to evaluate blood flow in the pampiniform plexus and testicular parenchyma. Semen was collected through the electroejaculation method in order to have its physical and morphological features evaluated. The animals were grouped based on age (young, mature, and old) and fertility level (high and low) before analysis. Data were subjected to Poisson regression analysis. The fertile bucks have shown higher plexus and parenchyma pixel responses (P < 0.05). Old animals had the highest values for plexus and parenchyma pixels, and for parenchyma score, and they were followed by mature and young animals, respectively. There was a significant correlation among testicular vascular flows, age, testicular morphometry, and fertility; however, there was no correlation between Doppler variables and sperm morphology. In conclusion, Doppler ultrasound had a potential effect on the assessment of testicular artery hemodynamics in male goats. Thus, it can be used as a complementary tool to indicate seminal quality, or even as a potential fertility predictor.

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Relação entre perímetro escrotal e concentração espermática em cães, clinicamente normais, da raça Pastor Alemão

Cited by 2 publications

References 2 publications

Sperm Morphological Features Associated with Chronic Chagas Disease in the Semen of Experimentally Infected Dogs

Sperm Morphological Features Associated with Chronic Chagas Disease in the Semen of Experimentally Infected Dogs

The use of Doppler ultrasound as a potential fertility predictor in male goats

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