148 



Conservation Department 



Table 4.— ErrECT of Blood Removal upon Rock Bass {Ambloplites rupestris) 

 Weight of Specimen 325 grams 



DATE 



Volume 

 removed 



Hemoglobin 

 per cent 



Erythrocytes 

 per cm. 



Erythrocytes 

 vol. per cent 



8/29 

 8/30 

 8/31 

 9/5. 

 9/5. 



2 



1.6 



2.2 



2.2 



1.1 



Clotted before sampling 



75 

 ' 59 

 IS 44 

 I 47 



1,450,000 

 1,170,000 

 1,500,000 

 1,130,000 



21 

 24 



20 

 14 



This last sample was taken one hour after the previous one. A series of samples 

 were taken after this one but they clotted so rapidly that no determinations could 

 be run. In contrast to its control, this rock bass turned light in color over its entire 

 body during the last period of the experiment. 



Table 5. — Effect of Blood Removal upon Lake Catfish (Villariiis lacustris) 

 Weight of Specimen at End of Experiment. 4,000 Grams (About 8 lbs.) 



DATE 



Volume 

 removed 



Hemoglobin 

 per cent 



Erythrocytes 

 per cm. 



Erythrocytes 

 vol. per cent 



7/10 

 7/11 

 7/12 

 7/16 

 7/30 

 7/31 

 8/6. 

 8/17 



2,100,000 

 1,900,000 



2^3001006 

 1,200,000 



i^soo^ooo 



Ran a blood volume by the dye method 



Fed raw liver 

 30 1 

 15 I 



Fed raw liver 

 15 1 



Lost 

 80 



85 

 51 



57 



41 

 21 



22 



Table 6. — Effect of Blood Removal upon Carp (Cyprinuc carpio) 

 Weight of Specimen, 600 Grams 



DATE 



8/13 

 8/19 

 8/23 

 8/28 

 8/28 



8/28 



8/28 

 8/28 

 8/28 



Volume 



removed 



cc. 



2 



1.9 



2 



1.7 



5.1 



5.6 



2.3 



2.0 



1.3 



Hemoglobin 

 per cent 



67 

 50 

 58 

 40 

 47 



32 



Erythrocytes 

 per cm. 



1,465,000 



770,000 



1,000,000 



Lost 



Lost 



Lost 



Erythrocytes 

 vol. per cent 



25 



18 



20 (4 hrs. later than 



first sample.) 

 12 (5 hrs. later than 



first sample.) 

 (8 hrs. later than 



first sample.) 

 (9 hrs. later thna 



first sample.) 

 3 (9 hrs. later than 



first sample.) 



