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Revista de Producción Animal

versión On-line ISSN 2224-7920

Resumen

PARRA, Juan Carlos López; MOYANO, Juan Carlos; MARINI, Pablo Roberto  y  FISCHMAN, María Laura. Variation of seminal quality against a systemic bacterial infection in Blackbelly rams. Rev. prod. anim. [online]. 2019, vol.31, n.3, pp.19-28.  Epub 15-Dic-2019. ISSN 2224-7920.

Background:

The increase in body temperature in febrile states caused by diseases, prolonged trapping or stress affects the seminal quality. The objective was to evaluate how the spermogram of individuals affected by a systemic bacterial infection and its recovery after antibiotic therapy was modified.

Methods:

The case was presented in two Blackbelly sheep, belonging to the flock of the Center for Research, Postgraduate and Conservation of Amazonian Biodiversity. Semen is extracted weekly using the artificial vagina technique. In March 2018 it was observed that the two males presented different pathologies. On the same day that the symptoms were detected in the two rams, the treatment was implemented, without performing the etiological identification of the pathogens. After the treatment was started, serial semen extractions were performed for two months, once a week, two jumps in the morning between 9:00 and 11:00 am, with a difference of 10 to 15 minutes each. A total of 16 samples of each ro-ro were obtained.

Results:

The pH of the ejaculates of both rams ranged from 7.3 before treatment and in their recovery, to 6.1 at the most critical time of infection. In the volume of the ejaculates, it was observed that there were differences 1.15 ± 0.19 ml and 1.00 ± 0.15 ml respectively (p≤0.001). The concentration of the ejaculate was 3000 (500-6000) x106 / ml and 2200 (800-6000) x106 / ml. Both rams showed the same behavior with respect to color, mass motility, individual and progressive, which were affected from the second extraction until the tenth, from which they slowly began to recover their normal values.

Conclusions:

In the two clinical cases presented, the greatest impact on seminal quality was observed in the first 7 to 8 samples, all the analyzed parameters being affected, coinciding with the duration of the spermatogenesis cycle.

Palabras clave : Ram of hair; sperm quality; systemic antibiotic; Amazonia.

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