prevalence and risk factors associated with the prrs virus in semen of boars in pig farms of yucatan
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ID: 205482
2009
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Abstract
The objectives of the present study were to estimate the prevalence of and to determine the risk factors associated with the porcine reproductive and respiratory syndrome virus (PRRSV, American strain) in semen of boars in pig herds of Yucatan, Mexico. Ninety two boars from 26 herds were ejaculated once. Semen samples were processed by the RT-nPCR test using the ORF7 primer to detect the PRRS virus. The true prevalence estimated was 10.1% (95% CI = 4.1-16.1%). Significance of risk factors was determined by Fisher-exact test. The odds of detecting genetic material of the PRRSV was greater (OR = 9.2) in semen of boars used under natural mating than those used in artificial insemination. In herds where boar’s acclimatization was not practiced the odds of a positive boar was 4.3. Another risk factor (P < 0.05) was the origin of the animals. In conclusion, the prevalence of the PRRSV in boar semen was smaller to the notified in the literature and determinate in blood serum. Management practices, such as the use of the artificial insemination and acclimatization of the boar, could be useful in reducing the prevalence of the PRRS virus in the pig farms.
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jordan-craviotto2009tropicalprevalence
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| Authors | ;Aremi Jordan-Craviotto;José C. Segura;Alejandro Alzina-López;Jorge Carlos Rodriguez-Buenfil;Sandra Villegas-Perez |
| Journal | diabetes therapy : research, treatment and education of diabetes and related disorders |
| Year | 2009 |
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