title: Respiratory bronchoscopy of subadult American alligators (Alligator mississippiensis) and tracheal wash evaluation.
abstract: Twelve healthy approximately 3-yr-old captive-born 4.5-9 kg American alligators (Alligator mississipiensis) each had bronchoscopy and tracheal washes performed four times during a 10-mo period to evaluate seasonal respiratory microbiology and cytology. Cytologic evaluation of most samples showed a small amount of mucus and low numbers of ciliated columnar epithelium, cubodial epithelium, and keratinized squamous cells. No bacteria or parasites were observed, and there was no seasonal variation in the cytology. No significant bacterial or fungal growth was identified in any season. Hematology performed in the spring and fall evaluations showed seasonal variation in the red blood cell count, hemoglobin concentration, mean corpuscular volume, mean corpuscular hemoglobin concentration, eosinophil count, and thrombocyte count. The lower respiratory tract (at the tracheal level) of healthy subadult alligators appears to be sterile, and cytology is similar to that described in domestic mammals.
authors.affiliation: Veterinary Medical Teaching Hospital, College of Veterinary Medicine, University of Florida, P.O. Box 100126, Gainesville 32610, USA.
authors.forename: Maud
authors.initials: M
authors.lastname: Lafortune
authors.forename: Thomas
authors.initials: T
authors.lastname: Göbel
authors.forename: Elliot
authors.initials: E
authors.lastname: Jacobson
authors.forename: Darryl
authors.initials: D
authors.lastname: Heard
authors.forename: Dan
authors.initials: D
authors.lastname: Brown
authors.forename: Rick
authors.initials: R
authors.lastname: Alleman
authors.forename: Kent
authors.initials: K
authors.lastname: Vliet
authors.forename: Kendal E
authors.initials: KE
authors.lastname: Harr
authors.forename: Jorge
authors.initials: J
authors.lastname: Hernandez
mesh_terms: D000489:Alligators and Crocodiles / Q000097:blood; D000818:Animals; D001772:Blood Cell Count / Q000662:veterinary*; D001999:Bronchoscopy / Q000379:methods / Q000662:veterinary*; D005260:Female; D008297:Male; D012621:Seasons; D014132:Trachea / Q000166:cytology* / Q000382:microbiology*