Sustainability

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Technical farming process

3. FARMING OPERATIONS

3.1 Feeding:
Feeding twice a day:
- Morning: 9 -  10:00AM
- Aflernoon: 16 -17.00
Quantity of feed as below:
                        Fish weignt                  Feed dimension                        Protein                        Feed quantity/day
                           (Gr/pc)                              (mm)                                   (%)                               (% fish weight)
                          20 - 100                             2_4                                  40_30                                      5 -  4
                        100 - 200                             4_0                                  30_20                                      4 -  3
                        200 - 500                             6_8                                  26_22                                      3 -  2
                          >500                                  8_10                                   22                                         2 - 1.2
3.2 Water exchange :
- Do not change the water during the first 7 days after putting fingerlings into the ponds. If it is necessary to change the water, when doing so you must use a sterilized chemical.
- When the pond water < 100 gr/pc, is changed once every 2 - 3 days, change just 30% of the water each time..
- When the water 100 - 200 gr/pc, is changed once every 1 - 2 days, change 50% water of the pond water each time.
- When the water > 200 gr/pc, is changed regularly, change just 50% of the pond water.
Note. Depending on the condition of each pond, the time to change the water can vary accordingly. When fish < l00gr/pc, change water it must also be sterilized.
4.3 Adding vitamins:

- Vitamin C: Mixed with feed, when fish are unwell (for the whole farming time)

- Elecamin: Periodically mixing with feed (Using for fish < 200 gr/pc)

- Vime – Glucan: Periodically mixing with feed (Using for fish < 500 gr/pc)

- Glusome 115: Periodically mixing with feed (Using for fish < 500 gr/pc)

- Prozyme: Mixing with feed after using antibiotics

- Sopherol: Mixing with feed after using antibiotics, periodically mixing with feed but stop using 2 months before harvesting.

4.4 Checking fish:

 - Check the fish’s swimming ability, feeding and eating activities, on a  daily basis. Carefully check dead fish to find out why they died and see what treatment is suitable.

- Every 10 – 15 days, check the weight of the fish. When checking the weight of 10 – 20 pieces, use medium-sized fish.

4.5 Preventive treatment:

4.5.1 Water treatment:

Check the fish’s swimming ability, feeding and eating ability daily. Carefully check dead fish dead to find out why they died and what is s suitable treatment.

With fish > 200 gr/pc, treat water once every 10 – 15 days

* Before treating water, spread zeolite to the pond ( 200 – 400 Kg/ha). One day after treating water, change the water and spread lime to the pond. During raining season, regularly add lime to the ponds.

4.5.2 Adding nutrition

Fish < 100 gr/pc, regularly add vitamin C, Vime-Glucan, Vemevit 9, Elecamin. Four times a month (each time continuously 3 – 5 days).

Fish 100 – 200 gr/pc, regularly add vitamin C, Vime-Glucan, Vemevit 9, Glusome, Elecamin. Three times a month (each time continuously 3 – 5 days).

Fish 200 – 500 gr/pc, regularly add vitamin C, Vime-Glucan, Vemevit 9, Glusome 115, Senic-EH, and sorpherol. Twice a month (each time continuously 3 – 5 days).

Prozyme, sorpherol is used after finish treating fish with antibiotics.

2 months before harvesting, add sorpherol, twice a month, each time continuously for 3 days.