liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Assessment of ventricular morphology using echocardiography in Ornate tinamous (Nothoprocta ornata) and domestic chickens (Gallus domesticus)
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.
2014 (English)Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
Abstract [en]

The Ornate Tinamou (Nothoprocta ornata), an ancient bird, has adapted to life at high altitude (>2.400 m.a.s.l) for a longer period than the domestic chicken (Gallus domesticus), which came to South America with the Spanish conquerors. Ornate tinamous have a smaller heart in relation to body size than domestic chickens. This study was made to evaluate heart morphometric measurements comparing Ornate Tinamou and domestic chicken using echocardiography measurements to determine wall thickness and chamber size and to evaluate whether it can retrieve measurements consistent with previous results on dissected hearts. I was also interested in evaluating potential adaptations of the Ornate Tinamou to life in hypoxic environments by exposing the heart to positive inotropic stimulation. The results were compared with those previously obtained on dissected hearts. The results showed that the chamber size of the domestic chicken was significantly larger than in Ornate Tinamou, both in conscious and anesthetized birds. Injection of 1µg/kg isoproterenol caused domestic chickens’ systolic chamber size to decrease significantly and fractional shortening to increase significantly. The same changes were seen in the Ornate Tinamou but they were not significant. In conclusion, this study confirms that echocardiography is a valid method for retrieving cardiac measurements without euthanizing animals, opening for the possibility of taking several measurements at different ages.

Place, publisher, year, edition, pages
2014. , 17 p.
Keyword [en]
Anesthesia, cardiac function, isoproterenol, left ventricular wall thickness, Ornate Tinamou
National Category
Biochemistry and Molecular Biology Microbiology
URN: urn:nbn:se:liu:diva-103754ISRN: LiTH-IFM- EX--13/2852--SEOAI: diva2:691017
Subject / course
Available from: 2014-02-21 Created: 2014-01-26 Last updated: 2014-02-21Bibliographically approved

Open Access in DiVA

fulltext(865 kB)224 downloads
File information
File name FULLTEXT01.pdfFile size 865 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
BiologyThe Institute of Technology
Biochemistry and Molecular BiologyMicrobiology

Search outside of DiVA

GoogleGoogle Scholar
Total: 224 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 263 hits
ReferencesLink to record
Permanent link

Direct link