Peçeli baykuşlarda (Tyto alba) Glandula Uropygialis’in Morfolojik ve Histolojik Analizi

Year 2020, Volume: 39 Issue: 2, 143 - 148, 30.12.2020

Bestami Yılmaz , Rahsan Yılmaz

https://doi.org/10.30782/jrvm.813008

Cited By: 3

Abstract

Glandula uropygialis (uropygial bez), kuşlarda derinin holokrin yapıda bir yağ bezidir. Bu çalışma erkek peçeli baykuşlarda (Tyto alba) uropygial bezin morfolojik ve histolojik yapısını belirlemek amacıyla yapıldı. Çalışmada erişkin yaşta 4 adet erkek peçeli baykuş materyali kullanıldı. Kuşların kuyruk bölgesinde yer alan bezler diseke edilerek vücuttan ayrıldı. Bezlerin morfometrik incelemeleri yapıldı. Bezin histolojik yapısını ortaya koyabilmek amacıyla doku kesitleri Hematoksilen & Eozin (H&E) ve Masson Trichrome yöntemleri ile boyandı. Boyanan kesitler ışık mikroskobu ile incelendi. Topografik incelemede, bezin synsakrumun kaudalinde, kuyruk omurlarının üzerinde yerleştiği belirlendi. Bezin ortalama ağırlığı 0.493±0.02 g, relatif indeks değeri (bez ağırlığının vücut ağırlığına oranı) ise 0.10±0.01 olarak bulundu. Histomorfolojik incelemede her bir lobun dışarıdan bağ doku ile sarıldığı görüldü. Loblar sıralı olarak dizilmiş tubulo-alveolar bezlerden oluşmaktaydı. Bezler ince bağ doku ile sınırlandırılarak birbirinden ayrılmışlardı. Bezler arasındaki bağ doku içerisinde kan damarları yer almaktaydı. Bezler kranialden kaudal uca doğru gidildikçe şekil ve hücre dizilişi bakımından farklılık gösteren 3 farklı bölgeden oluşmaktaydı. Sonuç olarak peçeli baykuş uropygial bezinin gerek morfolojik gerek histolojik yapısı bir takım yapısal farklılıklara rağmen literatürlerde bildirilen diğer birçok kanatlı hayvanlardaki ile benzerdi.

Keywords

morfoloji, peçeli baykuş, uropygial bez

Morphological and histological analysis of the Uropygial Gland in Barn owls (Tyto alba)

Abstract

The glandula uropygialis (uropygial gland) is a holocrine sebaceous gland of the skin in birds. This study was carried out to determine the morphological and histological structure of the uropygial gland in male barn owls (Tyto alba). In this study, four adult male barn owl materials were used. The glands in the tail area of the birds were dissected and separated from the body. Morphometric examinations were made of the glands. Tissue sections were stained with Hematoxylin & Eosin (H&E) and Masson Trichrome methods to reveal the histological structure of the gland. The stained sections were examined with by light microscope. In topographical examination, it was determined that the gland was located in the caudal of the synsacrum, above the tail vertebrae. The average weight of the gland was found 0.493 ± 0.02 g, and the relative index value (ratio of gland weight to body weight) was found 0.10 ± 0.01. In histomorphological examination, it was seen that each lobe was externally surrounded by connective tissue. The lobes consisted of sequentially lined tubulo-alveolar glands. The glands were separated by a thin connective tissue. There were blood vessels in the connective tissue between the glands. The glands consisted of 3 different regions that differ in shape and cell sequence to throught from the cranial to the caudal end. As a result, the morphological and histological structure of the barn owl uropygial gland was similar to many other poultry animals reported in the literature, despite some structural differences.

Keywords

Barn owl, morphology, uropygial gland

References

• Reynolds S. The anatomy and histomorphology of the uropygial gland in New Zealand endemic species. Master of Zoology, Massey University, New Zealand; 2013.
• Lucas AM, Stettenheim PR. Uropygial gland, In: Avian Anatomy, Part II, US Dept Agric Handb, Washington, pp: 613-626; 1972.
• Bride J. Cytophysiologic differentiation in the epithelial region of the uropygial gland in the duck embryo Anas platyrhynchos. J Embryol Exp Morphol. 1978;46: 21-35.
• Quay WB. Uropygial gland. In “Biology of the Integument”, Ed; Bereiter-Hahn, J, Matoltsy AG, Richards KS, Springer-Verlag Berlin Heidelberg; 1986.
• Gezici M. Deri ve Epidermoidal Oluşumlar. In “Evcil Kuşların Anatomisi”, Ed; Dursun N, Medisan Yayınevi, Ankara; 2002.
• Rawles ME. The Integumentary System. Editor(s): Marshall AJ, Biology and Comparative Physiology of Birds, Academic Press, New York and London; 1960.
• Kushwaha P. Histological studies of preen gland of some pet birds. Academic Voices. 2018;7:35-38.
• Montalti D, Gutiérrez AM, Reboredo G, Salibián A. The chemical composition of the uropygial gland secretion of rock dove Columba livia. Comp Biochem Physiol A Mol Integr Physiol. 2005;140:275-279.
• Kolattukudy PE. Avian uropygial (preen) gland. Method Enzymol. 1981;72:714-720.
• Jacob J, Ziswiler V. The uropygial gland, In “Avian Biology”, Ed; Farner DS, King JR, Parkes KC, vol 6, Academic Press, New York; 1982.
• Whittaker DJ, Richmond KM, Miller AK, Kiley R, Bergeon Burns C, Atwell JW, Ketterson ED. Intraspecific preen oil odor preferences in dark-eyed juncos (Junco hyemalis). Behav Ecol. 2011;22:1256-1263.
• Salibian A, Montalti D. Physiological and biochemical aspects of the avian uropygial gland. Braz J Biol. 2009;69:437-446.
• Moyer BR, Rock AN, Clayton D. Experimental test of the importance of preen oil in Rock doves (Columba livia). The Auk. 2003;120:490-496.
• Giraudeau M, Duval C, Guillon N, Bretagnolle V, Gutierrez C, Heeb P. Effects of access to preen gland secretions on mallard plumage. Naturwissenschaften. 2010;97:577-581.
• Clayton DH. Mate choice in experimentally parasitized rock doves lousy males lose. Am Zool. 1990;30:251-262.
• Møller AP, Czirjak GÃ, Heeb P. Feather micro-organisms and uropygial antimicrobial defences in a colonial passerine bird. Funct Ecol. 2009;23:1097-1102.
• Shawkey MD, Pillai SR, Hill GE. Chemical warfare? Effects of uropygial oil on feather-degrading bacteria. J Avian Biol. 2003;34:345-349.
• Hirao A, Aoyama M, Sugita S. The role of uropygial gland on sexual behavior in domestic chicken Gallus gallus domesticus. Behav Processes. 2009;80(2):115-20.
• Bruce MD. Family Tytonidae (Barn-owls). Handbook of Birds of the World, Volume 5: Barn-owls to Hummingbirds. Lynx Edicions; 1999.
• Demircioğlu I, Yılmaz B, Filikçi K, Daş A. A morphometric and histometric analysis of the effect of Mint Oil (Mentha piperita) supplementation at different levels to Quail (Coturnix coturnix Japonica) rations on glandula uropygialis. FU Sağ Bil Vet Derg. 2019;33(3):185-189.
• Demircioğlu I, Yılmaz B, Filikçi K, Güngören G, Bozkaya F. Morphometric, histometric and histomorphological investigation of the effects of different ratios safflower (Chartamus tinctorius L.) oil supplements on glandula uropygialis in Japanese quails (Coturnix coturnix Japonica). Eurasian J Vet Sci. 2020;36(1): 42-47.
• Johnston DW. A morphological atlas of the avian uropygial gland. Bull Br Mus Nat Hist. 1988;54:199-259.
• Yılmaz B, Harem İŞ, Demircioğlu İ, Özyiğit G, Bozkaya F. Aseel ırkı horoz ve tavuklarda glandula uropygialis’in anatomik, morfometrik ve histolojik özellikleri. Eurasian J Vet Sci. 2018;34:65-70.
• Galván I, Sanz JJ. Feather mite abundance increases with uropygial gland size and plumage yellowness in Great Tits Parus major. Ibis. 2006;148:687-697. Elder WH. The oil gland of birds. Wilson Bull. 1954;66,6-31.
• Stettenheim PR. The integumentary morphology of modern birds - an overview. Am Zool. 2000;40:461-477.
• Jawad HS, Idris LH, Bakar MZ, Kassim A. Anatomical changes of akar putra chicken digestive system after partial ablation of uropygial gland. Am J Anim Vet Sci. 2015;10:217-229.
• Kozlu T, Bozkurt YA, Ateş S. A macroanatomical and histological study of the uropygial gland in the white stork (Ciconia cicionia). Int J Morphol. 2011;29:723-726.
• Yılmaz B, Yılmaz R. Macroanatomical and histological features of uropygial gland in mallard ducks (Anas platyrhynchos). Harran Üniv Vet Fak Derg. 2019;8(2):214-220.
• Fitzgerald TC. The coturnix quail, anatomy and histology. The Iowa State University Press, Ames Iowa, 282; 1969.
• Montalti D, Salibián A. Uropygial gland size and avian habitat. Ornitol Neotrop. 2000;11:297-306.
• Kennedy RJ. Preen gland weights. Ibis. 1971;113:369-372.
• Carril J, Chiale MC, Barbeito CG. The uropygial gland of the monk parakeet Myiopsitta monachus: Histology, morphogenesis, and evolution within Psittaciformes (Aves). Evol Dev. 2020;22(3), 269-282.
• Mobini B, Ziaii A. Comparative histological study of the preen of broiler and native chicken. Vet Res Bull. 2011;6:121-128.
• Sawad AA. Morphological and histological study of uropygial gland in moorhen (G. gallinula C. choropus). Int J Poult Sci. 2006;5:938-941.
• Harem MK, Altunay H, Harem İS, Beyaz F. Yaban ve evcil ördeklerde preen bezi üzerinde histomorfolojik ve histokimyasal çalışmalar. J Health Sci. 2005;14: 20-30.
• Haydar NA. Anatomical and histological study of uropygial gland in the indigenous geese. MSc. Thesis, College of Veterinary Medicine, University of Baghdad, Iraq; 2005.
• Chiale MC, Montalti D, Flamini MA, Fernández P, Gimeno E, Barbeito CG. Histological and histochemical study of the uropygial gland of chimango caracara (Milvago chimango vieillot, 1816). Biotech Histochem. 2016;91(1):30-37.
• Montalti D, Quiroga A, Massone A, Idiart JR, Salibián A. Histochemical and lectin histochemical studies on the uropygial gland of rock dove Columba livia. Braz J Morphol Sci. 2001;18:33-39.
• Sadoon AH. Histological study of european starling uropygial gland (Sturnus vulgaris). Int J Poult Sci. 2011;10:662-664.
• Shafiian A, Mobini HB. Histological and histochemical study on the uropygial gland of the goose (Anser anser). Bulg J Vet Med. 2014;17:1-8.