Air sacs (Sacci pneumatici) in mallard ducks (Anas platyrhynchos)

Abstract

This study aimed to observe the air sacs (Sacci pneumatici) in mature Mallard ducks (Anas platyrhynchos). After animals (n=9) were euthanased by combination of ketamine 60 mg/kg and xylazine 6 mg/kg, methylmethacrylate (Takilon) was injected by way of trachea. They were put in a cold-aired room for two months for polymerization. Then, they were maserated with 3% potassium hydroxide at 40 °C, cleaned with tap water, coloured by glass dye and photographed. Morphology of the cervical and clavicular air sacs was consistent with previous studies. The cranial thoracic air sacs were smaller than the caudal sacs pneumatising the second to seventh ribs by their diverticula. The caudal thoracic air sac had no diverticulum. The left abdominal air sac had two portions, i.e. the cranial and caudal sacs; the latter aerating the last three ribs and synsacrum, the former being smaller and narrower. Moreover, the right abdominal air sac was bigger than the left sac

Keywords

• Air sac
• mallard duck

Yeşil başlı ördekte (Anas platyrhynchos) hava keseleri (Sacci pneumatici)

Abstract

Bu çalışma yeşil başlı ördekte (Anas platyrhynchos) hava keselerini (Sacci pneumatici) göstermeyi amaçladı. Hayvanlara (n=9) 60 mg/kg ketamin ve 6 mg/kg ksilazin bileşimi ile ötenazi uygulandıktan sonra, trakea yoluyla metilmetakrilat (Takilon) şırıngayla verildi. Polimerizasyon için soğuk hava odasında iki ay bekletildi. Takiben 40 ºC’de %3’lük potasyum hidroksitle masere edilerek akar su altında temizlendi, cam boyası ile her bir hava kesesi ayrı renklerle boyandı ve fotoğrafı çekildi. Servikal ve klavikular hava keselerinin morfolojisi önceki çalışmalarla uyum gösterdi. Divertikulum tarafından 2-7. kaburgaları havalandıran kranial torasik hava kesesi kaudal keselerden daha küçüktü. Kaudal torasik hava keselerinde divertikulum görülmedi. Sol abdominal hava kesesi kranial ve kaudal olmak üzere iki parçalıydı. Kaudal kısım son üç kaburga ve synsacrum’u havalandırdığı ve kranial keseden daha büyük ve geniş olduğu kayıt edildi. Ayrıca, sağ abdominal hava kesesi soldan daha büyük olduğu görüldü

Keywords

• Hava kesesi
• yeşil başlı ördek

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