How to Select and Breed Tadpole Fry? A Detailed Guide to the Methods
Friends who grew up in rural areas have probably often seen tadpoles, swimming around in the fields in a very conspicuous way, and many children catch them to play with. Everyone knows that frogs are a good delicacy and are loved by many consumers, so there are specialized farmers who raise frogs. Generally, if you want to raise good frogs, you have to select high-quality tadpole fry, so how do you select them well? How do you carry out breeding? Friends who want to know should take a quick look at the text below!
1. How to select tadpole fry?
1. Qualified tadpole fry should have a smooth body surface, skin rich in mucus, a strong physique, strong vitality, and fast growth.
2. The body weight of selected male tadpole fry must be 80-150 grams, and female tadpole fry must reach 100-200 grams.
3. Female tadpole fry should be selected with a swollen abdomen that is soft and elastic, while male tadpole fry should be selected with obvious dark spots on the throat and well-developed nuptial pads.
2. How are tadpole fry bred?
1. Preparation before stocking
Because tadpoles are small in the early stage and have poor mobility, they are easily harmed by various diseases and by water snakes, fierce fish, aquatic insects, and so on. Therefore, before stocking, the tadpole pond must be thoroughly cleared and disinfected with lime, bleaching powder, and so on. Apply 100 kg of lime and 10 kg of bleaching powder per mu of water surface to remove pathogens and various harmful organisms. A shade shed should be built above the tadpole pond, or an appropriate amount of water hyacinth should be placed in the pond.
2. Stocking density
Generally, tadpoles can be stocked 8 to 10 days after disinfection. The stocking density of tadpoles can be determined according to the size required to be reached. Generally, 2,000 newly hatched tadpoles are stocked per square meter of water surface, 1,000 tadpoles at 20 days of age, 500 tadpoles at 40 days of age, and 200 to 300 tadpoles at 60 days of age.
3. Feed feeding
Frog tadpoles are omnivorous with a tendency toward plant-based food. When they first begin feeding, they mainly eat phytoplankton and zooplankton in the water, and egg yolk or soybean milk can be added. Generally, feed twice a day, once in the morning and once in the evening, and each time feed 3 egg yolks per 10,000 tadpoles. After 5 to 6 days of feeding, as the tadpoles grow and their food intake increases, you can switch to soybean meal, wheat bran, cooked fish meat, and animal scraps, and so on. You can also feed artificial compound feed designed and produced according to the nutritional needs of frog tadpoles, especially extruded feed.
4. Daily management
The water quality of the tadpole breeding pond is required to be fresh and pollution-free, with a dissolved oxygen content above 3 mg/L. Water quality management is important daily work during tadpole breeding, and the tadpole pond should maintain fresh water quality and abundant natural bait organisms. When the pond water is found to be not fertile enough and the plankton quantity declines, additional fertilizer should be applied in a timely manner; if there are signs of water quality deterioration, the pond water should be replaced in a timely manner. Under normal circumstances, add or change water generally every 3 to 5 days.
All right, the above is all the content the editor wants to share with you today. Raising frogs is still fairly profitable now, but everyone should try to choose high-quality tadpole fry and use appropriate methods to breed them. I hope this article can help everyone.
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