Otsuka, commonly known as the giant salamander, belongs to the genus Amphibia. There are two types of Otsuka, the Chinese Otsuka and the Japanese Otsuka. The Chinese giant salamander is a rare wild animal with high economic value. It not only has 27 times more nutrient and higher medicinal value and ornamental value than the turtle, but also has important scientific research value in the history of animal evolution.
The oysters are tame and omnivorous. Their natural foods include fish, shrimp, frogs, mollusks, meat, aquatic insects and shellfish. The growth rate of giant salamanders is much faster under artificial rearing conditions than under natural conditions. It takes only one year to grow large tadpoles from 1 kg to 5 kg at moderate temperatures, and the economic value is considerable. The following mainly introduces the large-scale artificial breeding techniques.
1. Breeding conditions: Both indoor and outdoor can be cultured. The outdoor cultivation pond is specially constructed for the open air, and the indoor is a variety of aquaculture ponds transformed from idle facilities. The aquaculture pond only needs to be safe and firm to prevent water leakage, keep running water or be equipped with aerators. The size of indoor aquaculture ponds can range from 1 to tens of square meters. Culture ponds need to be immersed in water for 1 month before stocking, so that the pH value is below 6.4, generally do not strong light, only to maintain a low light or no light can be.
2. Stocking of seedlings: The breeding of big oysters generally introduces more than 10 cm of larvae. About 20 cubs per square metre of water can be bred. The seedlings were stocked with copper sulfate (2 mg/L) for 5 hours before stocking, and the carcass was bathed with 5% sodium chloride for 10 minutes. In the pool, granite was used to build a cave and plants were placed for hiding.
3. Feeding: The aquaculture pond is equipped with a bait-feeding table with a little above the water surface. For feeds, natural foods are preferred, mainly plankton, insects, meat and fish, and shellfish. Each morning and evening feeds once, which is better before 7:30 in the morning and 10:30 in the evening. When feeding food, you should first clean up the last bait. Feeding amount is 5-10% of body weight. When the water temperature is 16-23°C, the feeding amount should be increased, and the times and times can be kept constant.
4, daily management. Dayi's daily management is simple, but it is very important. Keep three times when feeding: timing, fixed point, and quantitative. It is very important to understand the ecological habits of Daxie. You should be afraid of noisy and dazed, happy water is afraid of drowning, and hi is dark and afraid of glare. These habits should be taken care of as much as possible. In addition, the carcasses and culture ponds are regularly sterilized and disease-prevented. Pay attention to changes in the water temperature. The control water temperature in the summer should not exceed 26°C to prevent summer sleep and prevent the water temperature from falling below the freezing temperature in winter.
To achieve the above points, it is very easy to artificially raise large clams.
The oysters are tame and omnivorous. Their natural foods include fish, shrimp, frogs, mollusks, meat, aquatic insects and shellfish. The growth rate of giant salamanders is much faster under artificial rearing conditions than under natural conditions. It takes only one year to grow large tadpoles from 1 kg to 5 kg at moderate temperatures, and the economic value is considerable. The following mainly introduces the large-scale artificial breeding techniques.
1. Breeding conditions: Both indoor and outdoor can be cultured. The outdoor cultivation pond is specially constructed for the open air, and the indoor is a variety of aquaculture ponds transformed from idle facilities. The aquaculture pond only needs to be safe and firm to prevent water leakage, keep running water or be equipped with aerators. The size of indoor aquaculture ponds can range from 1 to tens of square meters. Culture ponds need to be immersed in water for 1 month before stocking, so that the pH value is below 6.4, generally do not strong light, only to maintain a low light or no light can be.
2. Stocking of seedlings: The breeding of big oysters generally introduces more than 10 cm of larvae. About 20 cubs per square metre of water can be bred. The seedlings were stocked with copper sulfate (2 mg/L) for 5 hours before stocking, and the carcass was bathed with 5% sodium chloride for 10 minutes. In the pool, granite was used to build a cave and plants were placed for hiding.
3. Feeding: The aquaculture pond is equipped with a bait-feeding table with a little above the water surface. For feeds, natural foods are preferred, mainly plankton, insects, meat and fish, and shellfish. Each morning and evening feeds once, which is better before 7:30 in the morning and 10:30 in the evening. When feeding food, you should first clean up the last bait. Feeding amount is 5-10% of body weight. When the water temperature is 16-23°C, the feeding amount should be increased, and the times and times can be kept constant.
4, daily management. Dayi's daily management is simple, but it is very important. Keep three times when feeding: timing, fixed point, and quantitative. It is very important to understand the ecological habits of Daxie. You should be afraid of noisy and dazed, happy water is afraid of drowning, and hi is dark and afraid of glare. These habits should be taken care of as much as possible. In addition, the carcasses and culture ponds are regularly sterilized and disease-prevented. Pay attention to changes in the water temperature. The control water temperature in the summer should not exceed 26°C to prevent summer sleep and prevent the water temperature from falling below the freezing temperature in winter.
To achieve the above points, it is very easy to artificially raise large clams.
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