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Breeding Techniques of Monosex Tilapia for New Breeders

Technology of raising monogamous tilapia Merchandise is not complicated. However, to achieve high results, you need to strictly follow the technical processes. Please take the time to learn more about this topic through the content of the article below.

Breeding monogamous tilapia is currently very interested by farmers
Breeding monogamous tilapia is currently very interested by farmers
  1. Preparing the pond

It is an important step to create a lot of natural food for fish during the growing season.

For ponds with rotation, intercropping, one shrimp crop and one fish crop with a density of 1-2 fish/m2, the pond preparation becomes simple, but pay attention to the problem of killing trash fish and water snakes. It is possible to add quicklime which is ground directly from limestone, seashells, snails … in the amount from 300-500 kg/ha and organic fertilizers (pork, chicken, buffalo, cow …) pond bottom from 300-500 kg/ha.

For the breeding ponds, with a density of 5-7 fish/m2 or more, the rearing time is long, the pond preparation needs to be done carefully with the steps of clearing dirty mud, drying in the sun for 5-7 days, plowing the bottom. . The amount of lime and fertilizer is more than the density and must be applied additionally during the rearing process.

  1. Make water color

After harvesting and liming, fertilizing, killing impurities are done, frame the trash fish filter and put water in 30-40 cm after 4-5 days, the water will turn light green, yellow green or banana green, then continue. Continue to supply water to the pond to reach the level of 1m and prepare to release the fingerlings.

Watercoloring is an impossible thing to do when preparing a pond for monogamous tilapia
Watercoloring is an impossible thing to do when preparing a pond for monogamous tilapia

Tilapia farming in ponds and shrimp farming areas should pay attention to:

  • Wastewater from shrimp ponds should be reused because this water contains many types of algae, which are an abundant natural food source for tilapia.
  • Tilapia can be cultured in freshwater ponds or nursery ponds for 1-2 months at a density (15-20 fish/m2) in June and July. When the shrimp is collected (September, October) transfer these fish to shrimp ponds, the fish will grow quickly, shortening the farming time.
  1. Fish

Seeds meet the following standards:

  • Well-proportioned shape, no irregularities, no scratches.
  • Bright colors, fast swimming.

When releasing fish, we have to put bags and bags containing fish in the pond for 15-20 minutes, then pour the fish into the basins and pots to tame the salt. Add salt water slowly into the basin, pot to gradually increase after 1 hour to 2-3‰ (salinity) and gradually increase until equal to the salinity of the pond water.

  • It is recommended to release the fingerlings in the morning or in the cool of the afternoon. Avoid stocking fish at noon or in the hot sun, fingerlings must both tolerate high temperatures and adapt to salinity, causing damage and loss after stocking.

For ponds with salinity of 15‰ or less, there is no need to tame, but you can drop the fingerlings directly.

  1. Farming density

When stocking new fish, the weight of 0.5-1g/fish is equivalent to 1000-2000 fish/kg. The fingerlings can be stocked in small ponds with a density of 15-20 fish/m2, after one month, they can be transferred to a larger pond, reduce the density to 7-10 fish/m2 and after 2 months, they can be transferred to a pond with honey. suitable level of rearing 2-3 animals/m2.

  • Under normal conditions, one crop of shrimp and one fish crop can be rotated at a density of 2-3 fish/m2.
  • Under good management and good management conditions, it can be raised at a density of 3-5 animals/m2 .
  • In aquaculture, there is a water fan that can be raised at a density of 5-10 fish/m2/
Stocking density of tilapia seed should not be too thin or too thick
Stocking density of tilapia seed should not be too thin or too thick
  1. Feed the fish

Use homemade foods with ingredients:

– Trash fish, fish chips, crabs, small crabs or preparations from cattle slaughterhouses: 40-50%

– Corn flour, wheat flour, sweet potato flour, rice flour: 20-30%

– Rice bran: 10-20%

– Soybean meal, peanuts: 10-20%

+ How to prepare: The above ingredients are cooked, mixed with rice bran, milled and extruded into fibers, dried and eaten all during the day.

+ Feeding: 02 times per day

– Morning at 5-6 o’clock and

– Afternoon at 17-18 o’clock.

+ Amount of food

– The first month: the amount of food in the month is 3-5% of the weight of the fish.

– The second month: the amount of food in the day is 2-3% of the weight of the fish.

– The 3rd month onwards: the amount of food in the day is 0.5-1% of the fish weight.

+ In tilapia farming, it is necessary to pay attention to combine feeding with organic fertilizer application to increase the productivity of farmed fish.

– To create abundant natural food, organic fertilizers (usually pig, chicken, duck, buffalo, cow …) and inorganic fertilizers (Urea, NPK…) can be applied in combination or separately. individually depending on the fertile conditions of each pond.

Creating good natural food (dark water color, high density of algae) or nutrient-rich ponds is considered the most effective measure to increase the productivity of fish cultured in ponds and ponds.

  1. Management care

Observe daily for leaks around pond banks, sluice nets and fish activity.

– If you see fish floating early in the morning, you must provide more water.

– Periodically every 10-15 days check the fish with a fishing net, measure the growth of the fish to adjust the daily amount of food.

Observing and dealing with problems in the perch pond is not to be missed
Observing and handling problems in perch ponds is something that cannot be ignored
  1. Harvest

After 5-6 months of farming, the fish reaches a weight of 0.5-0.6 kg/fish, can harvest fish meat, there are two ways to collect.

– Harvesting: draining shallow ponds at 40-50cm water level, pulling nets to collect large fish.

– Collect clean: pull the net to catch many times, then pump out to catch all the remaining fish.

Monogamous tilapia can be harvested for about 6 months
Monogamous tilapia can be harvested for about 6 months

Raising unisex tilapia in shrimp ponds in the winter-spring crop not only creates income for shrimp farmers, but also creates a meaningful product for society, which is a source of fresh protein for domestic and export markets. . Wish the farmers success in applying this technique to tilapia farming scale.

Emilia Chaney
Emilia Chaneyhttps://agrisearch.net
My name is Emilia Chaney. I'm a social girl from Romania with a big smile and 3 passions: Agriculture, Travel and Social Media. I try to make this blog practical, full of great advice and inspiring ideas.

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