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High Yield Cobia Breeding Techniques

Cobia fish usually live in tropical, subtropical and warm waters of temperate seas. In the wild, Cobia live in saltwater or brackish coastal waters, coral reefs to the open sea. In our country, this fish species is quite popular in many coastal provinces such as Quang Ninh, Hai Phong, Nghe An, Ha Tinh, Hue, Phu Yen, Khanh Hoa, Vung Tau, and Kien Giang. The main farming method is cage culture in the sea. Farmers still have many things to know about Cobia farming techniques? The content of the article below will help you get more information on this topic.

Cobia cages

With this species of fish, due to its good strength, it can be raised both in airtight bays or in sea with big waves depending on the conditions of the rearing grounds. Currently, two types of cages commonly used in cobia farming are wooden cages, which are often used to raise fish in airtight bays, and round-shaped HDPE cages that can be raised in open seas with high waves.

Cobia cages need to be designed with the right size
Cobia cages need to be designed with the right size

The mesh size used for commercial fish cages increases gradually with the growth of the fish. The cage area is large, with the bearing plastic cage usually having a volume of about 300 m3 or more. Iron cages usually have a volume of 30 – 180 m3.

Breeding and stocking techniques for cobia

The stocking size ranges from 70 to 75 days old, the length of the fish reaches 10cm to 12cm, the average weight is 12g. It is necessary to choose fingerlings of equal size, healthy, without scratches and disease.

Because cobia has a fast growth rate, when harvested, the average fish meat reaches 5kg/head, so the initial stocking density should be at 5-6 fish/m3

Before stocking fish, it is necessary to bathe the fish for 5-10 minutes in combination with aeration to eliminate parasitic pathogens on fish, or bath with 5 ppm potassium permanganate for 15-20 minutes. It is best to release fish in the early morning or cool afternoon.

Before stocking cobia, it is necessary to treat parasitic pathogens on fish
Before stocking cobia, it is necessary to treat parasitic pathogens on fish

Feed and management of cobia cages

It is recommended to use small fresh fish, trash fish as food for fish, each feeding about 5-8% of the total volume of farmed fish. If using industrial feed, it is necessary to use reputable bran of good quality, suitable for the growth of fish from 2-16mm. Feed the fish twice a day, morning and afternoon.

In the process of raising cobia, farmers pay attention to regularly monitor the condition of the fish
In the process of raising cobia, farmers pay attention to regularly monitor the condition of the fish

During the rearing process, it is necessary to monitor the health and disease status of the fish for timely handling. It is necessary to periodically clean and replace the cage net every 2-3 months to ensure ventilation for the cage. It is necessary to periodically check the cage components (float, frame, mooring line, net…) and when necessary, promptly maintain or replace to minimize the risk of cage damage. Monthly sample measurement to determine the growth of fish (fish length and weight), thereby determining the weight of fish in the cage to adjust the amount of food appropriately.

Hopefully with the amount of information related to cobia farming techniques Agrisearch.net shares. Farmers will be able to deploy their cobia breeding model more reasonably, bringing high economic efficiency.

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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