Sökning: "Tinamou"

Hittade 5 uppsatser innehållade ordet Tinamou.

1. 1. Heart and ventilation rate changes during tonic immobility in Ornate Tinamou (Nothoprocta ornata) and High Andean chicken (Gallus gallus) compared to Chilean Tinamou (Nothoprocta perdicaria)

   Kandidat-uppsats, Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakulteten

   Författare :Cecilia Alexis Greder; [2015]
   Nyckelord :Tonic immobility; Heart rate; Ventilation rate; Nothoprocta ornata; Nothoprocta perdicaria; Tinamou; Gallus gallus; Chicken;

   Sammanfattning : Animals can show different responses to fear for example by playing dead when there is no possibility to escape. This response is called tonic immobility (TI) and is a well-established test of fear to evaluate fearfulness. Long durations of TI are generally considered as high levels of fearfulness. LÄS MER

3. 2. Validation study : HemoCue Hb 201 + as a tool in comparative physiological field studies on avian blood

   Kandidat-uppsats, Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakulteten

   Författare :Frida Gustavsson; [2015]
   Nyckelord :HemoCue Hb 201 ; Drabkin´s method; validation study; avian blood; haemoglobin concentration; mean corpuscular volume;

   Sammanfattning : Haemoglobin concentration is becoming a widely popular parameter to use to assess physiological condition within a broad range of species. Assessments of large populations would preferable be done in field to receive quick results and avoid confounding factors associated with transport of blood. LÄS MER

4. 3. Assessment of ventricular morphology using echocardiography in Ornate tinamous (Nothoprocta ornata) and domestic chickens (Gallus domesticus)

   Kandidat-uppsats, Biologi; Tekniska högskolan

   Författare :Emma Backlund; [2014]
   Nyckelord :Anesthesia; cardiac function; isoproterenol; left ventricular wall thickness; Ornate Tinamou;

   Sammanfattning : The Ornate Tinamou (Nothoprocta ornata), an ancient bird, has adapted to life at high altitude (>2.400 m.a.s. LÄS MER

5. 4. Knockdown of the ERK pathway using siRNA in cultured chicken cardiomyocytes

   Magister-uppsats, Biologi; Tekniska högskolan

   Författare :Caroline Ovrén; [2014]
   Nyckelord :cell culture; RNA interference; cardiomyocytes; ERK; MAPK;

   Sammanfattning : The ancient South American birds called tinamous (Tinamidae) have the smallest hearts known among birds and their cardiomyocytes have previously been shown to express significantly lower levels of the mitogen-activated protein kinase ERK compared to the more modern chicken (Gallus gallus). ERK is a well-known mediator of growth signalling in the heart, especially in hypertrophy. LÄS MER

7. 5. Cardiorespiratory responses upon increased metabolism in the Ornate Tinamou, Nothoprocta ornata

   Master-uppsats, Biologi; Tekniska högskolan

   Författare :Isabella Gasparini; [2012]
   Nyckelord :Chronic hypoxia; Ornate Tinamou; small heart; HR; VR; lowered temperature; exercise;

   Sammanfattning : The Bolivian Ornate Tinamou, Nothoprocta ornata, lives higher than 3300 m above sea level and must constantly deal with a restricted availability of atmospheric oxygen, i.e., chronic hypoxia. Interestingly enough, the Ornate Tinamou has a small heart to body ratio, which implies a reduced ability in transporting oxygenated blood to the tissues. LÄS MER