Pond monoculture mode and management

Green penaeids are generally raised in two cultures. The first eel is released in winter and spring (hereinafter referred to as spring shrimp); the second eel is stocked in the end of June to early August (hereinafter abbreviated as "shrimp"). Every shrimp aquaculture has to undergo pond preparation, disinfection of clear ponds, planting of aquatic plants and setting up of inhabited grids, water injection and fertilization, and other preliminary preparations. The following is a summary of the high-yield, high-efficiency and medium-low-yield aquaculture modes for the monoculture of shrimp ponds:

I. High-yield and high-efficiency breeding

1. The pond requires an area of ​​3 to 6 acres, with a rectangular shape, a large slope, complete drainage and drainage facilities, and oxygen aeration facilities. The air pump is the best way to attach sand and gas, and the inflation power is 1.1 kilowatts per 3 acres.

2. The spring shrimp breeding stocking time is from December of the previous year to February of the following year. The shrimp seedling size is 400 to 1200 tails/kg, and the stocking amount is 25 to 30 kg per mu. In mid-April, the use of land cages to catch large stay small, until dry pond fishing in June. The feed is mainly based on full-price pelleted feed for shrimps, supplemented by fresh live feeds such as small-sized fish, and generally has a yield of 40-60 kilograms per mu.

Second, small shrimp ponds in a single low-yield culture

The mode of low-yielding medium-sized and low-yield farming in the ponds of shrimps is generally stocked in December of last year. The specifications are 400 to 1,200 tails/kg of shrimp and 15 to 20 kg of acre. The spring of the following year will catch small and stay small, and the breeding season will use the pond's own young shrimp to breed the young shrimp. Generally, the annual mu yield will be 30-50 kilograms. This type of farming tends to lead to degraded shrimp germplasm and the market size of the shrimp is small. The advantages of such aquaculture are less investment and less risk, which is suitable for use in economically underdeveloped regions.

1. The flat-type wells and ponds required for excavation of old fish ponds, shallow ponds or rice fields are all available in the ponds. The area is generally 8 to 15 mu, the pond slope is small, and the water depth on the field boards is 0.6 to 1 meter, and there is no need for aeration facilities. .

2. The spring shrimp culture was stocked in December of last year. The size of the shrimp seedlings ranged from 400 to 1200 tails per kilogram, and 15 to 20 kilograms were stocked per acre. Water plants should not be too much, and the coverage is generally 15 to 20%. In April, mature organic fertilizers will be applied, and the feed will be coarsely mixed. Generally, full-priced pellets will account for 40%, wheat and soybean meal will account for 60%, and spring yield will be about 15kg.

Tempura

Tempura Flour,Premix Powder,Tempura Mix

Noodles,Panko,Seaweed,Pickled Vegetable Co., Ltd. , http://www.bjnoodles.com