Epididymal morphophysiology of adult collared peccaries (Pecari tajacu)
| Autor: | Diva Anelie de Araújo Guimarães, Maria Auxiliadora Pantoja Ferreira, Anna Patrycia Martins de Oliveira, Ana Cássia Sarmento Ferreira, Deise de Lima Cardoso, Natália Inagaki de Albuquerque, Otávio Mitio Ohashi |
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| Rok vydání: | 2016 |
| Předmět: |
Epididymis
Morphology Pecari Pecari tajacu endocrine system Histology General Veterinary Spermatozoon media_common.quotation_subject Efferent ducts Anatomy Biology biology.organism_classification Andrology medicine.anatomical_structure Reproductive biology medicine lcsh:Animal culture Orchiectomy Pseudostratified columnar epithelium Reproduction lcsh:SF1-1100 media_common |
| Zdroj: | Brazilian Journal of Veterinary Research and Animal Science, Vol 53, Iss 3 (2016) |
| ISSN: | 1678-4456 1413-9596 |
| DOI: | 10.11606/issn.1678-4456.bjvras.2016.108493 |
| Popis: | A functional understanding of the epididymis makes it possible to increase a species’ fertility, since it facilitates the preservation of gametes for use in assisted reproduction techniques. This study analyzed the histological features of the different regions of the epididymis of the Pecari tajacu and the associated pathologies found in the spermatozoa present in this organ. After an orchiectomy surgery to remove the testicles and epididymis obtained from eight adult animals bred in captivity, fixation and histological processing of samples were carried out. The presence of pseudostratified columnar epithelium with stereocilia was observed in all regions of the epididymis (caput, corpus and caudal). Similarities were noted between the average height of the corpus and caudal epithelium, which differed from that found at the caput (1- proximal: region associated with the efferent ducts; 2- distal: region associated with corpus epididymis). It was also observed that the proximal caput presents a smaller average of the tubules diameter compared to other portions of the epididymis. Regarding pathologies of the spermatozoa, thirteen different types of morphological modifications were observed. Underdeveloped spermatozoa and detached heads were most frequently encountered along the epididymis of the collared peccaries. This study is a pioneer in the area and its data will serve as a basis for comparative research on the reproductive biology of artiodactyls, thus contributing to their conservation and reproduction. |
| Databáze: | OpenAIRE |
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