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Table 1.

Composition of solutions administered by oral gavage or intramuscular injection to rainbow lorikeets and red wattlebirds

Probe
SpeciesVolume given (μl)d-[14C]glucose (Bq)[14C]3-OMG (Bq)l-[3H]glucose (Bq)NaCl (mmol l–1)Unlabeled d-glucose (mmol l–1)
RL i.m.  125 4.4×105  1.1×106 175  
 Oral  300 8.9×105  2.1×106 75 200 
 Oral Probe distribution in body tissues 300 6.7×105  6.7×106 75 200 
RWB i.m. Trial A 125 3.7×105 3.5×105 8.3×105 175  
 i.m. Trial B 125   8.3×105 175  
 Oral Trial A 300 7.4×105  1.7×105 75 200 
 Oral Trial B 300  7×105 1.7×105 75 200 
 Oral Probe distribution in body tissues 300 6.7×105  6.7×105 75 200 
Probe
SpeciesVolume given (μl)d-[14C]glucose (Bq)[14C]3-OMG (Bq)l-[3H]glucose (Bq)NaCl (mmol l–1)Unlabeled d-glucose (mmol l–1)
RL i.m.  125 4.4×105  1.1×106 175  
 Oral  300 8.9×105  2.1×106 75 200 
 Oral Probe distribution in body tissues 300 6.7×105  6.7×106 75 200 
RWB i.m. Trial A 125 3.7×105 3.5×105 8.3×105 175  
 i.m. Trial B 125   8.3×105 175  
 Oral Trial A 300 7.4×105  1.7×105 75 200 
 Oral Trial B 300  7×105 1.7×105 75 200 
 Oral Probe distribution in body tissues 300 6.7×105  6.7×105 75 200 

RL, rainbow lorikeet; RWB, red wattlebird; i.m. intramuscular injection. Oral solutions were made up to conditions relatively saturating for the mediated glucose transporters (Chang et al., 2004). The total osmolality of the oral and injection solutions was controlled at approximately 350 mmol kg–1, so that the solutions were isosmotic with avian blood(Goldstein and Skadhauge,2000). Differences in the amounts of radioactivity in the probe solutions reflect differences in body mass between these two species

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