The frog has delicate meat quality, less fat, low sugar content and high protein content. It has the effects of clearing heat, detoxifying, swelling, and relieving pain. Artificially raised frogs are not only technically simple but also economically profitable. First, the morphological characteristics The black spotted frog body is divided into three parts: the body without tail, body length is about 8 cm, the head is flat and wide, slightly triangular, and the eyes are round and prominent. There is an obvious round tympanum behind the two eyes, and the nostrils are small. The mouth is wide, the tip of the snout is pointed, and the tongue is bifurcated and can be pulled out. The skin is relatively smooth, with a pair of dorsal pleats and short skinfolds. The body is short and wide, with yellowish-green, dark green or gray-brown spots on the back and white ventral surfaces. The forelimbs are thick and short, with four toes and no carcasses. The hind limbs are well muscled, with five toes and a toe between the toes. There is a pair of external vocal sac on both sides of the male frog's mouth, and there is a mat on the inside of the first fat of the forelimb. The reproductive season is more obvious. The difference between the black spotted frog and the tiger frog is that the tiger frog is larger in body size, more than 10 cm in length, with yellow-green-brown markings on the back, horizontal stripes on the hind legs, and full spasm between the toes. The golden frog is about 5 cm long, with green or olive green on the back, with two brown-yellow dorsal pleats. Behind the thigh there is a yellow and a distinct white vertical pattern. Second, living habits The frogs inhabit the ponds, grasses on the shores of the gutters, and rice fields. They prey on insects, mainly agricultural pests. Adults live in amphibious life. They usually hide in grass or rice fields during the day, and come out in late dark and early morning. Frogs dormant when they fall below 10°C into the water or in the mud, and in the spring of the following year (in the early March of the Yangtze River), they perform mating activities, usually from April to July. The female frog can spawn up to 34 eggs at a time, and the fertilized eggs of the frog can hatch in 12 days. The beetle grows to a certain degree and begins to metamorphosis. Third, the construction of aquaculture ponds Frog breeding ponds are divided into spawning pools, ponds and frog pools. It is generally advisable to choose a place that is both wet and warm, and it is advisable to use a long concrete pool or earthen pond. The 46-meter-long pond is a single pond. The pool walls are best covered with cement. The bottom of the pond remains mud. The courtyard pond is generally 11.5 meters to 2 meters. The depth of the pool is generally 1 meter. There are irrigation holes and drainage channels, and the water depth is 20 ~50 cm. The pool surface must have a shading plate. Generally 40 frogs per square meter can be raised. The frog breeding pond can use earthen ponds, brick pools and rice fields. The key lies in preventing escape. If conditions permit, they can be used as brick walls or net fences, which are generally 1 to 1.2 meters high. The water depth in the pool is 30-60 cm, and water piles on the central or sunny side pile up for frog land habitat, and accounts for about 1/3 of the total pollution. Grass or crops are grown on mounds. In the pool water, put a small amount of floating grass. As a pond for cricket cultivation, only a small amount of land area is left for the metamorphosis of the young frogs. The Dianchi Lake is better equipped with concrete pools, and the slope of the pool walls should be gentle enough for habitats. Fourth, feeding and management (I) Feeding management of clams The artificial feeding of frogs must be hatched from the artificial eggs, and the larvae after filming should be cultivated in the original hatchery or cages, with 600 to 800 tails raised per square meter of water. The artificial feeding is started on the fourth day after hatching, and it is not necessary to feed into the rearing tank after feeding for one week. About 20 to 30 days later, it gradually feeds on worms, leeches, and fly maggots. It can also feed on soybean milk, bean dregs, bean cake powder, and chlorella. The addition of certain fish meal can promote its growth. In general, 15 cooked eggs are crushed with water and fed 1 or 2 times per 10,000. After the 5th day, use soybean milk, wheat bran, soybean curd residue compound feed, or rice bran and fish meal, and feed it 1 or 2 times a day. The feed is put on the bait-feeding table. The powder-like bait is first transferred into a viscous water and then splashed. èŒèšª Management: When it is found that there are bubbles in the pool or there is rancid odor in the water, change the water immediately. Normally, change it every 3 days. When the weather is dry for several days, change the water every 2 days. Metamorphosis management: frog eggs become young frogs about 70 days after hatching. The period from the occurrence of forelimbs to complete metamorphosis mainly depends on absorbing the tail supply, breathing air through the lungs, and begins to leap out of the water to land and inhabit. When more than 90% of the frogs turn into young frogs, they can be moved into the young frog pool. . (II) Feeding management of young frogs Intensive domestication: Concentration in high density can be in the density of 100 to 150 per square meter. In a concrete pool with a smooth inner wall and a height of more than 1 meter, the depth of the pool is about 20 centimeters. The bait station is placed on the surface of the water. On land, forcing frogs to come to the center to concentrate on feeding and inhabiting. Bait and taming: First feed with fresh bait for 1 to 2 days. Add 30% artificial diet to the bait on the 3rd day. Increase the proportion daily thereafter. After 10 days, increase to 80% of live baits.蚯蚓, fly maggots, small fish, shrimp, insects, calves and loach, etc.; "dead baits" refers to dried pupa, animal viscera, and formulated feeds. To static, "dead bait" is activated, and finally overtaken to completely feed artificial bait. At the same time, it requires timing, quantification, and positioning. Feeding time, spring and autumn around noon, summer evening or morning, feeding 1 or 2 times a day, each feed should be eaten in about 1 hour. Babies weighing 50 grams or less should be given 6 to 8% of body weight; larvae weighing more than 100 grams should have 8 to 10% of body weight. The bait requires fresh, clean and nutritious. Screening, grading, and division: When young frogs are domesticated for 20 to 30 days, the pool water should be drained, and the large-sized young frogs should be transferred to a frog pond at a density of 60 to 80 per square meter; small-sized young frogs still remain in the original pool. Domestication. The use of feed, indoor three-dimensional, multi-layer cage cage intensive farming, is a new method of breeding frogs. The frogs are cultured in plastic boxes and wooden boxes, and the small-scale production of the frogs is extremely high. Hundreds of eggs can be produced per square meter, and it takes only five months from hatching to adult frogs. (III) Feeding Management of Adult Frogs After the frog is transferred into a frog pond, the frog has a large food intake and a rapid growth rate. This is an important period for the production of commodities. Except for the supply of sufficient feed, the frogs need to increase the feeding of animal feeds, mainly labor. High-protein, high-reproductive live baits such as fly maggots, cockroaches, red worms, and cyanobacteria blister. In the case of lack of live bait, can be mixed with mixed feed, such as the use of rapeseed cake (powdered) 60%, rice bran (or wheat bran) 30%, 5% soy flour, fish meal 5% with a uniform effect is better. Cockroaches are active in water and can feed concentrates after 5 days. They are soybean milk, egg yolk, leeches, water spinach, tomato and plankton in water. In addition, to raise the earthworms on the mound, as long as every evening on the mound and sprinkled with some concentration of 3 to 5% of the lime water, the clams will come out to act as frog bait. It is also necessary to feed formula feeds in appropriate amounts, and to divide them in time to adjust the stocking density. After 1 month of frog rearing, when the weight of the frog body reached 100 grams, the rearing density was 30 per square meter, and after 2 months it was changed to 10 to 15 per square meter. After a short period of feeding, you can become a commercial frog listing. Sixth, breeding technology The key to breeding technology of frogs is artificial breeding, because wild frogs often have a double-slug parasite parasitizing in the muscles of frogs, and artificially spawning isolated frogs can effectively prevent the disease. Seeds were planted at a density of about 1 group of frogs per 3 square meters (invested well before May). The frogs require individual hypertrophy, and it is better to open the pro-frog for 1 to 2 years. The proportion of male and female mixed stocks is 3:1, and the stocking density is relatively less than that of the meat frogs. It takes about three years from young frogs to sexual maturity. The frog management: to strengthen the feeding of protein feed, mainly fleas, moth worms supplemented. Maintaining the normal balance of pool water requires fertilizer and living. When the water temperature stabilizes at about 22°C, it is ready for spawning hatching (at this time, the male frog buzzes). More than 50 grams of female frogs can spawn a lot at a time. General male and female hold eggs for aquatic plants. The frog eggs are light yellow and round, and they are attached to the glial egg membrane and float on the aquatic grass. It is easy to identify. (1) Spawning: Artificial spawning sites require a still water zone. Cage-type spawning methods are generally used, and frogs are forced to spawn in baskets or cages. Male and female frogs can lay five spawning baskets or cages at a ratio of 1:1 and 20 square meters. The pool water depth should be maintained at 10-15 cm, and the water temperature should be maintained at 10°C-11°C in order to achieve a hatching rate. To increase, the eggs can be protected with a fence to prevent the pro-flood from sinking. (II) Incubation: The temperature of frog fertilized eggs during incubation should be kept at 20°C~28°C, mainly natural incubation; plastic film covering hatching method and anhydrous incubation method can also be adopted. It usually takes 3 to 5 days to fully hatch. The newborn quail depends on the egg membrane for safe survival. Do not stir the pool water. After all the frogs lay eggs, the frogs will be caught out of the pool so as not to interfere with hatching and habitat survival. After 5 days of egg hatching, concentrate feeds such as soymilk, egg yolk, leeches, and plankton in the water can be fed twice a day. However, the amount of feeding should not be too high, so as to avoid water quality deterioration and death. After feeding for 1 week, the quail can be moved into the rearing pond for rearing.
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The frog is also known as the frog, and in some places it is called the water chicken. It is the collective name for the black spotted frog, tiger frog, and golden frog. In terms of classification, it belongs to the amphibious class, Anura, and Frogidae, all common frog species in China.