How to Draw Blood from an Adult Fish
Place the fish in the holding tank., Wait until the fish loses balance and swims abnormally. , Squeeze the peduncle of the fish gently and observe the response., Have an assistant hold the fish upside down with the tail facing in your direction...
Step-by-Step Guide
-
Step 1: Place the fish in the holding tank.
If the fish attempts to swim away, wait until it stops responding to pressure.
If the fish does not respond, proceed with the directions. ,,,,,,, This is the vertebral column. ,, If blood does not appear in the needle, withdraw the needle and repeat steps 1–9.
If blood does appear in the needle, maintain pressure on the plunger and proceed with the directions. ,,,,,, -
Step 2: Wait until the fish loses balance and swims abnormally.
-
Step 3: Squeeze the peduncle of the fish gently and observe the response.
-
Step 4: Have an assistant hold the fish upside down with the tail facing in your direction.
-
Step 5: Grasp the peduncle of the fish at the base of the tail fin with one hand and hold it so that the body of the fish is straight.
-
Step 6: Position the needle with the other hand so that the needle is aimed at the axial ventral peduncle
-
Step 7: about an inch behind the anal fin.
-
Step 8: Tilt the needle so that the needle is at a 45 degree angle from the peduncle.
-
Step 9: Insert the needle into the skin and between the scales of the fish.
-
Step 10: Push the needle straight down toward the center of the body.
-
Step 11: STOP when you hit a hard
-
Step 12: impenetrable surface.
-
Step 13: Withdraw the needle no more than a millimeter.
-
Step 14: Gently pull back on the plunger.
-
Step 15: Release the plunger once the desired amount of blood has been drawn.
-
Step 16: Place your thumb on the body of the fish above the needle.
-
Step 17: Simultaneously withdraw the needle from the fish and apply slight pressure with your thumb.
-
Step 18: Once the needle has been completely withdrawn
-
Step 19: press down firmly on the area of puncture for five seconds OR until bleeding stops.
-
Step 20: Place the fish into the recovery tank.
-
Step 21: Monitor the fish every ten minutes over the next hour for any abnormal behavior or signs of bleeding.
Detailed Guide
If the fish attempts to swim away, wait until it stops responding to pressure.
If the fish does not respond, proceed with the directions. ,,,,,,, This is the vertebral column. ,, If blood does not appear in the needle, withdraw the needle and repeat steps 1–9.
If blood does appear in the needle, maintain pressure on the plunger and proceed with the directions. ,,,,,,
About the Author
George Edwards
Creates helpful guides on organization to inspire and educate readers.
Rate This Guide
How helpful was this guide? Click to rate: