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2.2.1.2. Time per dose
This mode allows you to enter the vibration (dosing) time of the FISHGUN D2, in order
to deliver feed for each individual tank. The time is entered in milliseconds (ms), so the
FISHGUN D2 will deliver the amount of feed needed (shown in the table below). It then
becomes possible to know how long the FISHGUN D2 should vibrate for each
individual to feed. For the total amount of feed to be distributed, refer to the summary
table on our website: https://planktovie.biz/en/protocols/nutritional -solutions/ Then
divide the total quantity of feed to be distributed per individual, per feeding, by the value
from Table 1 below, and enter this value as the vibration time.
TABLE 1: Quantity of feed delivered each ms
Size
(µm)
Hole diameter
(mm)
Quantity
(mg/ms)
CV (%)
75 2 0.019 14
150 2 0.055 8
300 2.4 0.083 6
500 2.4 0.096 5
Note 1 : For more precision, it is preferable to quantify, for each Diet-Tube, the amount
of food that will be delivered each ms of vibration.
Note 2 : Each Diet-Tube must be replaced after 12 months of use, thus
guaranteeing the values shown in the table.
This new version of the Fishgun makes it possible to use very fine grain sizes (75 µm)
without affecting the accuracy at which zebrafish are fed. Thus, the coefficient of
variation is less than 20% for a 75 µm grain size. More details in table 1 above.
Example 1 : Feeding adult fish.
Typically, one adult zebrafish (Danio rerio) should receive 30 mg of GEMMA Micro 500
each day. To dispense this, amount the FISHGUN D2 should vibrate for 30 : 0.096 =
312 ms. Enter this value in the "Time per unit" of FISHGUN D2.
Example 2 : Feeding post-larvae (30 days post-fertilization).
If a zebrafish (Danio rerio) post-larva is to receive 7 mg of GEMMA Micro 300 each
day, the FISHGUN D2 should vibrate for 7 : 0.083 = 84 ms to dispense this amount.
Enter this value in the "Time per unit" of FISHGUN D2.