Histological and histochemical investigations on the structural aspects of the testis of adult brown bear (Ursus archtos arctos)

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dc.contributor.buuauthorÖzfiliz, Nesrin
dc.contributor.departmentUludaǧ Üniversitesi/Veterinerlik Fakültesi.tr_TR
dc.contributor.researcheridAAH-2756-2021tr_TR
dc.contributor.scopusid6506533788tr_TR
dc.date.accessioned2021-12-21T12:56:03Z
dc.date.available2021-12-21T12:56:03Z
dc.date.issued1997
dc.description.abstractThe study carried out on mature Brown Bears brought to the Wild Life Research Center of Uludag University, Faculty of Veterinary Medicine, for rehabilitation. The bears were castrated before sending them to a wild life sanctuary for preventing their over breeding. Structural differences in the testes of bears in sexually active and inactive state were shown by using histological, histochemical and histometrical methods. Testes were cut longitudinally into two pieces and the lengths were measured. The tissue pieces taken from four different parts of one piece, fixated in buffered formalin to demonstrate the parenchyma and excretory ducts. The 5-7 micron sections cut from paraffin blocks, stained with Crosmon's Triple stain for morfological features, Gomori's silver stain and Pinkus' orcein-giemsa stain for connective tissue fibers, Me Manus' periodic-acide schiff technique for glycosaminoglycans. The 10-15 micron cryostat sections were stained with Oil-red O stain method for lipids. The average diameters of seminiferous tubules were measured with the method of Gill and Leighton. The average lengths of testes in active state were found longer than in inactive state. In the active state tunica albuginea of testes was thicker than in the inactive state. In the sexually active state it was observed that the walls of tubuli seminiferi contorti were made up of 2-4 lines of cells while they were contracted and the wall was made up of 1-2 cell lines in the inactive state. The average diameters and thickness of epithelium lining ductuli efferentes, ductus epididimidis and ductus deferens were increased in the active state.en_US
dc.identifier.citationÖzfiliz, N. (1997). "Histological and histochemical investigations on the structural aspects of the testis of adult brown bear (Ursus archtos arctos)". Turkish Journal of Veterinary & Animal Sciences, 21(5), 421-429.en_US
dc.identifier.endpage429tr_TR
dc.identifier.issn1300-0128
dc.identifier.issue5tr_TR
dc.identifier.scopus2-s2.0-3743096272tr_TR
dc.identifier.startpage421tr_TR
dc.identifier.urihttps://journals.tubitak.gov.tr/veterinary/abstract.htm?id=1662
dc.identifier.urihttp://hdl.handle.net/11452/23433
dc.identifier.volume21tr_TR
dc.identifier.wosA1997YG00200010tr_TR
dc.indexed.pubmedPubmeden_US
dc.indexed.scopusScopusen_US
dc.indexed.trdizinTrDizintr_TR
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherTÜBİTAKtr_TR
dc.relation.journalTurkish Journal of Veterinary & Animal Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectVeterinary sciencesen_US
dc.subjectBearen_US
dc.subjectTestesen_US
dc.subjectStructureen_US
dc.subjectHistochemistryen_US
dc.subjectAmericanusen_US
dc.subject.scopusUrsidae; Pseudopregnancy; 15-Keto-13,14-Dihydroprostaglandin F2Alphaen_US
dc.subject.wosVeterinary sciencesen_US
dc.titleHistological and histochemical investigations on the structural aspects of the testis of adult brown bear (Ursus archtos arctos)en_US
dc.typeArticle

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