A Detailed Explanation of Black-spotted Frog Breeding Technology and Management Key Points

AbstractThe breeding environment for the black-spotted frog: the pond is required to have high dissolved oxygen content, the suitable growth temperature is 20-30°C, and it likes to live in a warm, humid environment overgrown with weeds. Daily management: it fears direct sunlight, so concealed places can be set up in the pond, and vegetables etc. can be planted around it; during this period, leftover food and feces should be cleaned up in time, the pond water should be changed regularly, disinfection work should be done well, and the feed given should be comprehensive in nutrition. The feeding habits of the black-spotted frog: during the tadpole stage its diet is omnivorous, and after becoming a young frog it likes to eat insects and other arthropods.

I. The Environment for Breeding Black-spotted Frogs

1. Water quality

During the tadpole stage, the black-spotted frog requires a relatively high dissolved oxygen content in the frog pond, which generally needs to meet fishery water quality standards. Although young frogs and adult frogs breathe with their lungs, a high dissolved oxygen content in the water can better promote their growth and development. The suitable pH value is around 7-8, and generally the salinity must not exceed 2.

2. Temperature

The suitable growth temperature for the black-spotted frog is 20-30°C. When the temperature drops below 10°C, its activity and feeding ability will gradually weaken; when it drops below 5°C, it will begin its hibernation period; when the water temperature is above 32°C, its activity ability will gradually weaken; and when the temperature is above 35°C, it will cause the black-spotted frog to die one after another.

3. Humidity

The skin of the black-spotted frog does not have a tissue structure that protects against evaporation of water from the body, and it can only rely on the mucus secreted by skin glands to maintain the humidity of its body surface, but this is obviously still not enough, so there must be both a pond with good water quality and a warm, humid environment overgrown with weeds.

4. Light

The black-spotted frog likes to hide by day and come out at night, and fears direct sunlight, but it can move toward weak light. Light promotes the frog's growth, reproduction and metabolism. If it lives in a dark place for a long time, it will make it difficult for the gonads of the black-spotted frog to develop and mature, and may even cause it to stop releasing sperm and laying eggs.

II. Daily Management of Breeding Black-spotted Frogs

1. The black-spotted frog generally lives in burrows during the day, so concealed places need to be built in the pond; aquatic plants can be planted or melons, fruits, vegetables, etc. can be planted around it.

2. During the young frog stage it fears strong light and disturbance, and is relatively sensitive to changes in the surrounding environment, so when managing young frogs, attention should be paid to keeping the area around the pond relatively quiet.

3. Leftover food and feces need to be cleaned up in time, and the pond water should be changed regularly and disinfected, thereby keeping the water quality clear and reducing the incidence of disease.

4. The feed given should be rich and comprehensive in nutrition, and the protein content needs to be above 38%.

III. The Feeding Habits of the Black-spotted Frog

1. Tadpole stage: During the tadpole stage the black-spotted frog has an omnivorous diet, and it loves to feed on both animal and plant foods.

2. After tadpoles hatch: They mainly rely on absorbing the nutrients of the yolk sac to sustain life, and after 3-4 days, they begin to feed on plankton, single-celled algae and other foods in the water.

3. After tadpole metamorphosis: After the black-spotted frog tadpoles metamorphose into young frogs, they generally like to feed on insects and other arthropods, such as Coleoptera, Diptera, Hemiptera, Homoptera, Orthoptera, Lepidoptera, etc., and also love to swallow a small amount of shrimps, snails, Cyprinidae, Cobitidae, small fish, etc.