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- Title
Nota Técnica: Efecto del espacio por animal sobre los niveles de cortisol, conductas agonísticas y su relación con el ciclo ovárico del pecarí de collar (Pecari tajacu) en cautiverio.
- Authors
Montes-Pérez, R. C.; Kuri-Melo, L.; Mukul-Yerves, J. M.; Segura-Correa, J. C.; Castro, F. G. Centurión
- Abstract
Two groups, each of seven mature females and one vasectomized male, of collared peccaries (Pecari tajacu) in captivity were used to compare two treatments based on either 5 and 20 m²/animal. Blood plasma levels of cortisol and progesterone were measured by radioimmunoassay. Variations in plasma concentration of progesterones were used to detect stages of ovarian cyclicity. Sexual and agonistic behaviors were measured by the scan sampling method. Results obtained with the 5 and 20 m²/animal treatments were: concentration of cortisol, 7.86 to 11.85 and 7.76 to 12.10 µg/dl; duration of the estrous cycle was 28.5 + 9.5 and 24.6 + 3.4 d, respectively, with no differences between treatments (P < 0.05). The corresponding values for proportion of sexual behavior were 2.40 and 2.19% those for agnostic behavior were 1.54 and 2.10%, the latter difference being significant (P > 0.05). It is concluded that mixed groups of collared peccaries with one sole male can be submitted to a housing density of 5 m²/animal without affecting the blood level of cortisol, the agonistic behavior or the cyclical ovarian activity.
- Subjects
COLLARED peccary behavior; HORMONES in animal nutrition; CORTISONE; PROGESTERONE; COLLARED peccary; MENSTRUAL cycle; PECARI
- Publication
Latin American Archives of Animal Production / Archivos Latinoamericanos de Producción Animal / Arquivos Latino-Americanos de Produção Animal, 2012, Vol 20, Issue 3-4, p77
- ISSN
1022-1301
- Publication type
Article