Produção Nacional
Morfologia do sistema reprodutor masculino da Preguiça-de-Coleira (Bradypus torquatus, Illiger, 1811)
2005; Fundação de Amparo à Pesquisa do Estado de SP; Volume: 5; Issue: 1 Linguagem: Inglês
10.1590/s1676-06032005000100035
ISSN1678-7927
Autores Tópico(s)Comparative Animal Anatomy Studies
ResumoSloths are mammals (Class: Mammalia) from Order Xenarthra (or Edentata), that is composed by three subordens and four families: Vermilingua subordem, Mylmeciphagidae family which belongs anteater; Pilosa subordem, Bradypodidae family and Choloepidae family, which we find sloths and Cingulata subordem and Dasypodidae family, where we observe the armadillos. We used in this research three-toed sloth (Bradypus torquatus) being six males and one female at different ages. These animals had been yielded to the Anatomy Laboratory of Surgery Department at College of Veterinary Medicine and Zootecny of Sao Paulo University (FMVZ/USP) from the Matinha Zoo botanic Reserve, Ilheus/Bahia (IBAMA Register no 02006.001.348/98-31). We used the technique of vascular latex injection (Neopreme® 650) and the muscular injection of watery formaldehyde solution to 10%, later analyzed by light microscopy. The results shown the presence of the necklace in adult animals allows to differentiate males from females. The perineal region is found extra cavity with oval shape, delimited by the interpubic, pubic bone and medial processes of pubis and sciatic tubers; it is divided in three regions: aponeurotic, fatty and muscular. The perineal muscles are represented through the muscles: elevator of the anus, sphincter urethral, penis retractor and the muscle sphincter anal. The male reproductive organs of three-toed sloth sloth (Bradypus torquatus) are represented: for a pair of testis; epididimus, composed of head, body and tail, two pairs of accessory genital glands; one composed by a pair of vesicular glands and another pair, the prostate; for male urethra and penis
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