| reproductive performance of captive collared peccaries (tayassu tajacu) in the eastern amazon. | this study analyses reproductive parameters resulting from 74 parturitions in a population of captive collared peccaries in the eastern amazon (belém, state of pará, brazil) during a 65-month survey. parturitions were homogeneously distributed throughout the year. the average litter size was 1.85 newborns per parturition. collared peccary females had a newborn sex ratio of 52.6% females and 47.4% males. the mean age at first parturition was 639, although, the earliest first parturition occurred ... | 2007 | 17101243 |
| a health evaluation in a colony of captive collared peccaries (tayassu tajacu) in the eastern amazon. | this study pretends to determine baseline data on the health and mortality of a colony of captive collared peccaries in the eastern amazon (belém, state of pará, brazil) during a 65-months survey. thirty-nine out of 166 animals (23.5%) died and were examined post-mortem. monthly mortality averaged 1.2%. the highest mortality rate was observed in newborns (74.4%). abandonment by the mother and aggression were responsible for 24.1% and 13.8% of the total newborn deaths, respectively. most frequent ... | 2006 | 16487552 |
| water availability not fruitfall modulates the dry season distribution of frugivorous terrestrial vertebrates in a lowland amazon forest. | terrestrial vertebrate frugivores constitute one of the major guilds in tropical forests. previous studies show that the meso-scale distribution of this group is only weakly explained by variables such as altitude and tree basal area in lowland amazon forests. for the first time we test whether seasonally limiting resources (water and fallen fruit) affect the dry season distribution in 25 species of terrestrial vertebrates. to examine the effects of the spatial availability of fruit and water on ... | 2017 | 28301589 |
| hematological markers and biochemical profiles in terms of gender and age of captive collared peccaries (tayassu tajacu) in eastern amazon. | complete blood counts and blood biochemical analyses are laboratory tests that allow the monitoring of physiological condition, nutrition, and health in free-living or captive wild animals. when interpreting these tests, it is essential to compare the results with reference ranges that are suitable for the species. few studies have been conducted on the hematological and biochemical characteristics of tayassu tajacu, particularly for animals raised in the amazon biome. the objectives of this stu ... | 2015 | 26634461 |