What food do river crabs eat and how to raise them?

What food do river crabs eat and how to raise them?

River crab is one of the important aquaculture species in my country and is loved by consumers for its delicious meat and rich nutrition. In recent years, with the continuous improvement of breeding technology, river crab breeding has become a wealth-making industry in many regions. This article will combine the hot topics and hot content on the Internet in the past 10 days to give you a detailed introduction to the feeding habits and scientific breeding methods of river crabs.

1. Feeding characteristics of river crabs

River crabs are omnivorous animals with a wide range of food sources, including both plant-based and animal-based food. The following are common food types of river crabs:

2. Scientific breeding methods of river crabs

1.Breeding environment selection

River crabs are suitable for growing in an environment with fresh water and sufficient dissolved oxygen. Breeding ponds should be selected in a place with sufficient water resources and convenient drainage and irrigation, and the water depth should be kept at 1-1.5 meters.

2.Stocking density control

3.Daily management points

(1) Water quality management: Check water quality regularly to keep the pH value between 7.5-8.5 and the transparency 30-40 cm.

(2) Feeding management: Follow the "four certain" principles (timing, fixed point, fixed quality, and quantitative). The daily feeding amount is generally 3-5% of the crab's body weight.

(3) Disease prevention and control: Disinfect regularly and isolate and treat diseased crabs promptly if found.

3. Recent hot topics in breeding

1.New model of ecological breeding

Recently, the "rice-crab symbiosis" model has been promoted in many places to achieve mutually beneficial symbiosis between rice and river crabs, which not only improves land utilization but also increases economic benefits.

2.Intelligent breeding technology application

With the development of Internet of Things technology, more and more farms are beginning to use intelligent monitoring systems to monitor key indicators such as water quality and dissolved oxygen in real time, greatly improving breeding efficiency.

3.Brand building

Local governments are actively promoting the construction of regional public brands for river crabs, such as "Yangcheng Lake Hairy Crabs", "Hongze Lake Hairy Crabs", etc., to increase the added value of products through brand effects.

4. Analysis of breeding benefits

5. Breeding precautions

1. Choose high-quality crab seedlings and avoid low-quality seedlings produced by inbreeding.

2. Pay attention to the construction of anti-escape facilities. River crabs have strong escape ability.

3. Feed formula should be adjusted at different growth stages to ensure nutritional balance.

4. Autumn is a critical period for river crab fattening, and the proportion of animal feed should be appropriately increased.

Through the above scientific breeding methods and combined with the current industry development trends, the river crab breeding industry has good development prospects. Farmers should choose a suitable breeding model based on their own conditions and focus on quality improvement and brand building in order to remain invincible in the fierce market competition.