Yeşilbaş Ördeklerde (Anas platyrhynchos) Glandula Uropygialis’in Makroanatomik ve Histolojik Özellikleri

Yıl 2019, , 214 - 220, 25.12.2019

Bestami Yılmaz , Rahşan Yılmaz

https://doi.org/10.31196/huvfd.667765

Cited By: 6

Öz

Bu çalışma, erişkin erkek ve dişi yeşilbaş ördeklerde (Anas platyrhynchos) glandula uropygialis’in anatomik, topografik ve histolojik özelliklerini araştırmak amacıyla yapıldı. Çalışmada on yetişkin yeşilbaş ördek (5 erkek, 5 dişi) materyali kullanıldı. Kuyruk bölgesinde yerleşen glandula uropygialis’ler önce topografik olarak incelendi. Ardından diseksiyonları yapılarak morfolojik ve histolojik yapıları belirlendi. Bezin histolojik yapısını belirlemek için alınan doku örnekleri Hematoksilen & Eozin (H&E) ve Masson Trichrome ile boyandı. Yapılan incelemelerde glandula uropygialis’in son kuyruk omurları düzeyinde yerleşen “V” şeklinde bir yapı olduğu belirlendi. Morfometrik incelemelerde bezin ağırlığı erkeklerde ortalama 5.10±0.22 g, dişilerde ise 4.02±0.26 g bulundu. Relatif bez ağırlığı erkek bireylerde ortalama 0.31±0.01, dişlerde ise 0.28±0.01 olarak tespit edildi. Erkek ve dişiler arasında glandula uropygialis genişliği, glandula uropygialis yüksekliği, papilla uropygialis uzunluğu, papilla uropygialis yüksekliği ve tüy uzunluğu parametrelerinde fark olmadığı (P<0.05), glandula uropygialis ağırlığı ve uzunluğu parametrelerinde ise istatistiksel olarak anlamlı farklar bulunduğu tespit edildi (P>0.05). Histolojik incelemede bezin kapsülle çevrili iki lobdan oluştuğu gözlendi. Her bir lob merkezde boşaltıcı bir kanal etrafında çevrelenmiş tubuler yapıda bezler içeriyordu. Bezler şekil ve hücre yapısı bakımından üç farklı bölgeden oluşmaktaydı. Bezi oluşturan hücreler de şekil ve kalınlık bakımından bazal, intermediyer, sekretorik ve dejeneratif hücre tiplerine ayrılmıştı. Glandula uropygialis’in genel histolojik yapısı diğer kuşların anatomik ve histolojik özelliklerine benzerdi. Çalışmanın sonuçları, yeşilbaş ördeklerde glandula uropygialis'in genel yapısında bazı türlere özgü farklılıklar gözlense de diğer kuş türlerine benzer olduğunu göstermiştir.

Anahtar Kelimeler

Glandula uropygialis, Yeşilbaş ördek, Anatomi, Histoloji

Macroanatomical and Histological Features of Uropygial Gland in Mallard Ducks (Anas platyrhynchos)

Öz

This study was carried out in order to examine the anatomical, topographical and histological features of glandula urpygialis in male and female mallards (Anas platyrhynchos). In the study ten adult mallards (five males and five females) were used. The topographical localisation of the glandula uropygialis was examined. Afterwards morphological and histological structure of the dissected gland was assessed. Histological structure of the gland was examined using tissue samples stained with Hematoxylene & Eosin (H&E) and Masson Trichrome. The gland was detected to localize at the level of the last caudal vertebrae and have a “V” shape. Morphometric examination revealed that the mean weight of the gland was 5.10±0.22 g and 4.02±0.26 in males and females respectively. The relative gland weight (gland weight/body weigth) was found 0.31±0.01 and 0.28±0.01 in males and females respectively. There was no significant differences with respect to width and height of the glandula uropygialis, papilla length and height and feather legth (P<0.05) parameters, while statistically significant differences were found with respect to gland weight and gland length parameters between males and females (P>0.05). In the histological examination the gland was observed consisted of two lobes surrounded within a capsule. Each lobe contained tubular glands localized around a central excretion duct. The glands were composed of three distinct region with respect to form and cellular structure. Three distinct types of cells constructiong the gland were observed which were classified as intermediary, secretoric and degenerative. The results of the study indicated that the general structure of the glandula uropygialis in the mallard was similar to those in other bird species although certain species specific differences were observed.

Anahtar Kelimeler

Uropygial gland, Mallard duck, Anatomy, Histology

Kaynakça

• Alida MB, Witmer LM, Holliday CM, 2017: Cranial joint histology in the mallard duck (Anas platyrhynchos): new insights on avian cranial kinesis. J Anat, 230, 444-460.
• Balkaya H, Özdemir D, Özüdoğru Z, Kara H, Erbaş E, 2016: Saksağanda (Pica pica) Glandula Uropygialis’in Anatomik ve Histolojik Yapıları Üzerine Bir Çalışma. Van Vet J, 27, 21-24.
• Baumel JJ, King SA, Breazile JE, Evans HE, Vanden Berge JC, 1993: Handbook of avian anatomy. Nomina Anatomica Avium, 2nd ed, Cambridge, Massachusetts.
• Chen YH, Peh HC, Roan SW, 2015: Establishment of Uropygial Gland Growth Curves for White, Three-Way Crossed Mule Ducklings. Braz J Poultry Sci, 17, 209-218.
• Chiale MC, Montalti D, Flamini MA, Fernández P, Gimeno E, Barbeito CG, 2016: Histological and histochemical study of the uropygial gland of chimango caracara (Milvago chimango vieillot, 1816). Biotech Histochem, 91, 30-37.
• Czirják GA, Pap PL, Vágási CI, Giraudeau M, Mureşan C, Mirleau P, Heeb P, 2013: Preen gland removal increases plumage bacterial load but not that of feather-degrading bacteria. Naturwissenschaften, 100, 145-151.
• Elder WH, 1954: The oil gland of birds. Wilson Bull, 66, 6-31.
• Fischer I, Haliński Ł, Meissner W, Stepnowski P, Knitter M, 2017: Seasonal changes in the preen wax composition of the Herring gull Larus argentatus. Chemoecology, 27, 127-139.
• Gezici M, 2002: Deri ve Epidermoidal Oluşumlar. In “Evcil Kuşların Anatomisi”, Ed; Dursun N, Medisan Yayınevi, Ankara.
• Harem MK, Altunay H, Harem İS, Beyaz F, 2005: Yaban ve evcil ördeklerde preen bezi üzerinde histomorfolojik ve histokimyasal çalışmalar. J Health Sci, 14, 20-30.
• Haydar NA, 2005: Anatomical and histological study of uropygial gland in the indigenous geese. MSc. Thesis, College of Veterinary Medicine, University of Baghdad, Iraq.
• Hirao A, 2011: The possible role of the uropygial gland on mate choice in domestic chicken. Int J Zoology, vol. 2011, Article ID 860801. Doi:10.1155/2011/860801.
• Jacob J, 1976: Bird Waxes. In “Chemistry and Biochemistry of Natural Waxes”, Ed; Kolattukudy PE. Elsevier, Amsterdam.
• Jacob J, Ziswiler V, 1982: The uropygial gland, In “Avian Biology”, Ed; Farner DS, King JR, Parkes KC, vol 6, Academic Press, New York.
• Jacob J, Eigener U, Hoppe U, 1997: The structure of preen gland waxes from Pelecaniform birds containing 3,7-Dimethyloctan-l-ol - an active ingredient against dermatophytes. Z Naturforsch, 52c, 114-123.
• Jawad HS, Idris LH, Bakar MZ, Kassim A, 2015: Anatomical changes of akar putra chicken digestive system after partial ablation of uropygial gland. Am J Anim Vet Sci, 10, 217-229.
• Johnston DW, 1988: A morphological atlas of the avian uropygial gland. Bull Br Mus Nat Hist, 54, 199-259.
• Kolattukudy PE, 1981: Avian uropygial (preen) gland. Method Enzymol, 72, 714-720.
• Kozlu T, Bozkurt YA, Ateş S, 2011: A macroanatomical and histological study of the uropygial gland in the white stork (Ciconia cicionia). Int J Morphol, 29, 723-726.
• Mobini B, Ziaii A, 2011: Comparative histological study of the preen of broiler and native chicken. Vet Res Bull, 6, 121-128.
• Montalti D, Salibián A, 2000: Uropygial gland size and avian habitat. Ornitol Neotrop, 11, 297-306.
• Montalti D, Quiroga A, Massone A, Idiart JR, Salibián A, 2001: Histochemical and lectin histochemical studies on the uropygial gland of rock dove Columba livia. Braz J Morphol Sci, 18, 33-39.
• Montalti D, Gutiérrez AM, Reboredo G, Salibián A, 2005: The chemical composition of the uropygial gland secretion of rock dove Columba livia. Comp Biochem Physiol A Mol Integr Physiol, 140, 275-279.
• Moyer BR, Rock AN, Clayton D, 2003: Experimental test of the importance of preen oil in Rock doves (Columba livia). The Auk, 120, 490-496.
• Quay WB, 1986: Uropygial gland. In “Biology of the Integument”, Ed; Bereiter-Hahn, J, Matoltsy AG, Richards KS, Springer-Verlag Berlin Heidelberg.
• Rajchard J, 2010: Biologically active substances of bird skin: a review. Vet Med-Czech, 55, 413-421.
• Reneerkens J,Versteegh MA, Schneider AM, Piersma T, Burtt EH, 2008: Seasonally changing preen-wax composition: red knots' (Calidris canutus) flexible defense against feather-degrading bacteria. The Auk, 125, 285-290.
• Reynolds S, 2013: The anatomy and histomorphology of the uropygial gland in New Zealand endemic species. Master of Zoology, Massey University, New Zealand.
• Sadoon AH, 2011: Histological study of european starling uropygial gland (Sturnus vulgaris). Int J Poult Sci, 10, 662-664.
• Sawad AA, 2006: Morphological and histological study of uropygial gland in moorhen (G. gallinula C. choropus). Int J Poult Sci, 5, 938-941.
• Shafiian A, Mobini HB, 2014: Histological and histochemical study on the uropygial gland of the goose (Anser anser). Bulg J Vet Med, 17, 1-8.
• Stevens L, 1996: Avian Biochemistry and Molecular Biology. Cambridge University Press, United Kingdom.
• Yılmaz B, Yılmaz R, Arıcan İ, Yıldız H, 2012: Anatomical structure of the syrinx in the Mallard (Anas platyrhynchos).Harran Univ Vet Fak Derg,1,111-116.
• Yılmaz B, Harem İŞ, Demircioğlu İ, Özyiğit G, Bozkaya F, 2018: Aseel ırkı horoz ve tavuklarda glandula uropygialis’in anatomik, morfometrik ve histolojik özellikleri. Eurasian J Vet Sci, 34, 65-70.