Implementation of Biological Control to the Integrated Control of Strongyle Infection among Wild Captive Equids in a Zoological Park

The integrated control of strongyles was assayed for a period of three years in wild equids (zebras, European donkeys, and African wild asses) captive in a zoo and infected by strongyles. During three years control of parasites consisted of deworming with ivermectin + praziquantel; equids also received every two days commercial nutritional pellets containing a blend of 104 - 105 spores of the fungi Mucor circinelloides + Duddingtonia flagrans per kg meal. Coprological analyses were done monthly to establish the counts of eggs of strongyles per gram of feces (EPG). The reductions in the fecal egg counts (FECR) and in the positive horses (PHR) were calculated fifteen days after deworming; the egg reappearance period (ERP) and the time elapsed from the previous deworming (TPD) were also recorded. Four anthelmintic treatments were administered during the assay, three times throughout the first 2 yrs, and another treatment during the last one. FECR values of 96-100% and 75-100% for the PHR were recorded. The ERP oscillated between eight and twenty-eight weeks, and the TPD ranged from four to eighteen months, increasing to the end of the trial. No side effects were observed in any of the equids. It is concluded that integrated control of strongyles among equids captive in a zoo can be developed by anthelmintic deworming together with the administration of pellets manufactured with spores of parasiticide fungi every two days

Redução de riscos na perspectiva dos praticantes de barebacking: possibilidades e desafios

Este artigo discute uma modalidade de barebacking (sexo anal desprotegido) denominada de parcial ou com redução de riscos. Esta discussão é decorrente de uma etnografia online sobre os sentidos e práticas de barebacking, no contexto brasileiro, entre os anos de 2004 a 2007. Entretanto, ao focalizar a redução de riscos no barebacking, este artigo traz outras formas, práticas, possibilidades eróticas de realização e entendimento do mesmo. É o caso, por exemplo, quando alguns praticantes evitam ejacular dentro ou receber o esperma do parceiro, buscam ser mais receptivos ou insertivos ou manter relações sexuais desprotegidas com parceiros do mesmo status sorológico. Nessa direção, torna-se importante discutir as possibilidades e limites de modelos alternativos de prevenção utilizados no cotidiano de diferentes pessoas, levando-se em consideração as preferências sexuais, dinâmica dos relacionamentos, crenças, discursos, experiências e contextos interativos