| ovarian features of the wild collared peccary (tayassu tajacu) from the northeastern peruvian amazon. | in this study, the ovaries of 27 wild collared peccaries (tayassu tajacu) from the amazonian region of northeastern peru were examined macroscopically and microscopically, and expression of major steroidogenic enzymes was detected by immunohistochemistry. our observations suggest a mean ovulation rate of 2.3 +/- 0.6 follicles and a low rate of reproductive wastage (0.4 +/- 0.6 oocytes or embryos per pregnancy). the collared peccary seems to exhibit follicular waves involving the synchronous grow ... | 2006 | 16516212 |
| first evidences of amazonian wildlife feeding on petroleum-contaminated soils: a new exposure route to petrogenic compounds? | videos recorded with infrared camera traps placed in petroleum contaminated areas of the peruvian amazon have shown that four wildlife species, the most important for indigenous peoples' diet (lowland tapir, paca, red-brocket deer and collared peccary), consume oil-contaminated soils and water. further research is needed to clarify whether amazonian wildlife's geophagy can be a route of exposure to petrogenic contamination for populations living in the vicinity of oil extraction areas and relyin ... | 2018 | 29103585 |
| monitoring of leptospirosis seroprevalence in a colony of captive collared peccaries (tayassu tajacu) from the peruvian amazon. | leptospirosis, an endemic zoonoses, is maintained in the environment by several wildlife species in the peruvian amazon. in order to evaluate the possible role of collared peccaries (cp) in the maintenance this disease, two serological surveys of leptospirosis were performed and zootechnical parameters were monitored in a captive cp colony in an interval of 27 months. total seroprevalence changed from 100% (n=27) to 86.4% (n=22), with reactions to a diversity of serogroups of zoonotic importance ... | 2009 | 19000627 |