The four major fishes refer to grass carp, herring, squid, and squid. Grasping the broodstock cultivation of the four major fishes in autumn will allow the broodstock to accumulate fat, promote gonad development, and increase the amount of egg-laying. This is an important part of raising the amount of eggs laid by broodstock in the coming year. The method is as follows: Spicy Chilli Sauce,Beef Chili Sauce,Chicken Chili Sauce,Mushroom Chili Sauce Ningxia Ningyang Halal Food Co., Ltd. , http://www.ningyangfood.com
First, the method of cultivation of grass and blue broodstock
1. Feeding: The autumn water is suitable for people. It is the season when grasses and blue broodstock have the highest food intake. The principle of feeding in the whole autumn is “mainly concentrated material, combined with crude and coarse.†The broodstock feeds about 150 grams of dry and heavy fine material such as wheat and soybean cake each day. Green feed was fed once a day for two days, and the amount of each feed was about 20% of the broiler's body weight. Green broodstock is mainly fed with snails, clams, and oysters, supplemented with bean cakes. In general, each broodstock has to feed about 150-200 kilograms of snails, clams, and clams during the entire autumnal culture period.
2, adjust the water quality: autumn grass, blue broodstock food intake, frequent activities, water quality is easy to aging, in the face of rainy and humid weather will be lack of oxygen floating head. So always add new water to make the pond fresh. For conditional ponds, aerators should be installed, and oxygen should be turned on when necessary to increase dissolved oxygen in the water, improve water quality, and facilitate the development of gonads in grasses and blue broodstocks.
3, prevention and treatment: Autumn grass, blue broodstock prone to enteritis, gills, red skin and other diseases. First of all, it is necessary to do a good job of prevention. Disinfect the body of water with quick lime and strong chlorine. Second, do not feed moldy feed, feed the green material with bleaching powder after disinfection, if found broodstock should be diagnosed in time, symptomatic treatment.
Second, the pheasant, pheasant broodstock method
1. Fertilizer: In the fall, organic fertilizer should be regularly applied. The main pond for raising squid has the ratio of organic fertilizer: 70% of human feces and 30% of pig cow dung; the main pond for raising squid, the ratio of organic fertilizer is 70% of pig cow dung and 30% of human dung. The number and number of shots should be based on the pond's fatness, weather changes, broodstock activity, and more. The general principle is to keep the water brown and have a transparency of about 0.2 meters. Powdered feed must be added when necessary to accumulate fat in broodstock to ensure normal development of the gonads.
2. Adjust water quality: In the autumn, you should always inject new water into the pond. To maintain the fertility and tenderness of the water body, fill the pond water in late autumn. Conditional ponds should be equipped with aerators for oxygenation to prevent broodstock hypoxia.
3, prevention and treatment of fish diseases: crickets, crickets broodstock fall susceptible to parasitic diseases, such as anchor head lice and fish gills, etc., can be used fish vermicelli, exterminator King Quanchiposa, can prevent parasitic diseases.