Breeding technology of Rana nigromaculata in rice field!

Frog is a beneficial insect, which can prey on a large number of mosquitoes and pests. Frog meat is tender and rich in protein, which has been one of the delicacies on people's table for many years. In order to meet people's needs, crazy fishing leads to wild resources. In addition, now the state has issued laws and regulations to protect the environment, and it is not allowed to catch wild frogs. Breeding frogs has become one of the most popular projects for farmers, so how to breed frogs in rice fields? Next, let's take a look at the frog nesting technology provided by Wuhan Xiaogan Industry Alliance.

Paddy field reconstruction

The first thing is to choose a suitable rice field. The days we choose are, firstly, relatively low terrain, secondly, convenient irrigation and drainage, and will not dry up when the weather is hot, so that frogs have a comfortable growth environment. Enclose the rice fields with purse seines, and set up escape nets at the entrances and exits to prevent frogs from fleeing. Reinforce and raise the ridge. Dig frog ditch. On both sides of the paddy field (near the intake canal or reservoir), a frog ditch in the shape of "1 1" is excavated, with the length equal to that of the frog field, the width of 1m and the depth of 0.5-0.6m, accounting for 15%-25% of Honda's area.

Seedling stocking

Disinfection of ponds and cultivation of plankton in pond water should be done well before seedling raising. 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. Culture of plankton Under natural conditions, tadpoles mainly eat phytoplankton and zooplankton in water. Fermented organic manure (such as cow manure and pig manure) can be applied at the same time when fresh water is injected into tadpole pond after disinfection, and the dosage per square meter is 0.5 1. 0kg。 After 3 ~5 days of fertilization, the reproductive order of plankton in water is basically the same as that of tadpoles.

Feeding and 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, fish and animal viscera were "dead fed" and live bait with the size similar to that of live bait was fed, 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.

Before raising frogs, the company provided free technical training and related technical knowledge of breeding frogs. More importantly, don't let the frog escape. The way to take them is to bypass the rice fields. Put the gauze on it so that the frog won't run away. Rice can't be grown in rice fields, and pesticides and fertilizers can't be used. These pesticides and fertilizers have an effect on the growth of frogs. If it is pesticide, frogs will naturally have pesticide residues, so there will be no market for this frog.

However, in fact, raising frogs in rice fields will also benefit rice. On the one hand, rice fields provide food for frogs. These foods are like insects in rice fields. After eating these bugs, don't you need pesticides? In addition, some excrement of frogs is also a way to fertilize rice fields, so this is ecological farming. This paddy field is an interdependent small ecological environment.