Method for breeding frogs in paddy field

Frog is a common amphibian and an important and common agricultural breeding project. There are many kinds of breeding methods for frogs, and paddy field breeding is an important breeding method. So, how to raise frogs in rice fields? Let me take you to know more.

Breeding techniques of frog in paddy field. Paddy fields with low terrain, convenient irrigation and drainage, no waterlogging and no drought should be selected for paddy field foundation engineering construction, and the area should be controlled at 0.067-0. 134 hectares. Every 0.067 hectare of paddy field, a number of dikes with a width of about 1 m and a height of more than 50 cm are generally built, and the area of the dikes generally accounts for 20% of the total paddy field area, creating an environment that conforms to the amphibious habits of frogs.

The width between ridges is 4-5 meters, which is convenient for rice planting. Paddy fields are surrounded by polyethylene nets, and the height is about 1 m to prevent frogs from escaping. A sunshade 50 cm above the ground was built by bamboo poles and reed curtains on the edge of the dike as a place for frogs to rest and eat, with a specification of 2 meters? 1.5m, a sunshade will be set on the ridge every 10m.

There are three 50 cm gourmet tables under each awning? 30 centimeters. In order to ensure that there is enough water source in paddy field, each culture frame should be provided with a separate water inlet and drainage channel. The inlet channel and outlet channel are arranged diagonally to promote the rotation of water flow and make the water exchange sufficient.

Techniques for raising frogs in rice fields II. Frogs raised with seedlings in rice fields are generally released in early April. Before stocking, 20 kilograms of quicklime was used to disinfect the furrows between ridges every 0.067 hectares, and water was released one week later to raise frogs. The newly metamorphosed young frogs are stocked with 20,000-25,000 per 0.067 hectare, and the young frogs after 30 days are stocked with 6.5438+0.5-20,000 per 0.067 hectare. Frogs of different specifications should not be kept at the same time.

Frog breeding technology III. Feeding management 1. Food domestication. The specific measures are as follows: firstly, live baits such as bread worms, fly maggots and small earthworms are evenly spread on the embankment for young frogs to prey on, and they are fed twice a day in the morning and evening; Five days later, the young frog used to prey on live bait, and then put these live bait on the food table; A week later, the fish and animal viscera were "dead fed" and fed with live bait similar in size to live bait, gradually increasing the share of "dead feeding" and finally completely transitioning to "dead feeding".

In addition, several live loaches can be put into the feed by simulating live bait, and the live loaches swim in the feed tray to drive the feed in the tray. When young frogs see that the feed in the tray vibrates completely, they will scramble to eat it, which can also achieve the purpose of domestication. The domestication time is generally about 20 days.

2. Feed and its feeding. The feed of new metamorphosed young frogs is mainly small animals such as maggots, breadworms and small earthworms, and the average daily feed per 100-150g. When the young frog grows to about 15g, feed small miscellaneous fish, shrimp, earthworm, snail meat and animal viscera (chopped), and the daily feeding amount is equivalent to 10%- 15% of the young frog's weight. In addition, insect traps should be installed in rice fields to trap insects as bait for frogs. When the frog grows to more than 50g, the artificial compound pellet feed is fed, the protein content of the compound feed is above 35%, the diameter is 4-6mm, and the feeding amount is controlled at 3%-5% of the frog's weight, and it is fed/kloc-0 each time in the morning and afternoon.

3. Daily management. Breeding frogs in rice fields and planting soybeans on the embankment in summer can give frogs shade from the cold; In summer, rice fields should be properly supplemented with some new water, and the water level should be kept at about 40 cm; Clean the food table every day and disinfect and dry it regularly; Patrol the fields every day to observe the growth of frogs.

Breeding techniques of frogs in rice fields. Disease control frogs in rice fields can eat some pests, but they can't completely replace pesticides to control pests. Serious rice diseases and insect pests still need high-efficiency and low-toxicity pesticides. In order to ensure the safety of Rana americana in rice fields, we should pay attention to cleaning and dredging ditches before applying pesticides to make the water level in rice fields deepen to 6- 10cm. When spraying drugs, try to reduce the drugs falling into the water. The emulsion pesticide is sprayed after the dew is dry, and the powder pesticide is sprayed when there is dew, or it can be sprayed in turn every half field. After spraying, if frogs are found unsuitable, add fresh water to the field immediately.

In addition, don't take medicine before it rains, lest it fall into the water. The prevention and control of frog diseases should be based on strengthening frog physique and improving rice field environment, and take the road of prevention first and combining prevention and control:

① When young frogs are stocked, soak them in 20X 10-6 potassium permanganate solution or 3%-4% salt solution 10 minute.

② In feeding management, frog ditch (pond), tools, frog body and food should be disinfected frequently, and feeding should be timed, located and quantified.

(3) transportation, seedling operation should be careful. Before the peak season or epidemic period of frog disease, sprinkle 20× 10-6 quicklime or 1× 10-6 bleaching powder in paddy fields every10 days, or add different drugs to the compound feed for feed control.

(4) When patrolling in the field, remove the enemy's situation, dirt and residual bait in time; Frogs that are slow to move, lie still, anorexia or have other abnormal manifestations should be caught and examined in time, and the sick people should be treated in isolation, and effective measures should be taken to stop the development and spread of the disease.

Techniques for raising frogs in paddy fields V. Precautions for raising frogs in paddy fields ① Paddy fields should have sufficient water sources, convenient irrigation and drainage, and pollution-free water quality.

② Divide the paddy field into several small frog fields, each with an area of about 80? 120 square meters.

③ Frog ditch excavation. On both sides of the rice field? Excavate one at the side of the diversion canal or reservoir, with a length equal to the frog farm, a width of 1m and a depth of 0.5-0.6m? 1 1? Zigzag frog ditch accounts for 15-25% of Honda area. A small ridge with a height of 0.3 meters and a width of 0.3 meters was built at the junction of frog ditch and frog field.

④ Heighten and reinforce the ridge. Build a ridge around the ridge with the soil dug from the ridge ditch, with a height of 0.4-0.5m and a width of 0.3-0.5m.. ..

⑤ Build escape prevention facilities. Pile around the ridge, enclose it with cement tile or polyethylene net, with a height of 0.8- 1 m, and bury it in the soil of 10 cm.

⑥ Diagonal excavation of inlet and outlet gaps. Each border field is excavated with 1-2 water inlets and outlets respectively, and at the same time, a frog barrier is nailed with barbed wire or polyethylene net.

⑦ Build a shade shed. A sunshade net is hung horizontally above each frog ditch for shading, with the width of 1.5-2m and the same length as the frog ditch.

⑧ Dig a flood drainage ditch around the frog farm to prevent the flood from entering the frog farm.

Through the above introduction of frog rice field breeding technology, we now know how to breed frogs in rice fields. Frog rice field breeding is a mode in the process of frog breeding. American frogs can be cultivated in rice fields, which is not only eco-green, but also makes full use of the space of rice fields and increases the yield of rice fields.