Fish Feed Machine Knowleagde

The prosperous period of catfish reproduction is between March and May, and the middle and northern part are about one month slower than the southern part. First select the mature female and male species, and select 3 female fish and 1 male fish for each group and put them into each group. In the cloth bucket net.

Female catfish can be easily distinguished during the breeding period. At this time, the female fish's abdomen is enlarged and soft, the genital pores are round and swollen, and the anus is not concave. Lightly pressing the abdomen with fingers will cause light yellow eggs to be discharged.

The male fish is slender, with a flat lower abdomen, narrow and long genital openings, and the pectoral fins are usually larger than those of females of the same body length. If you press lightly with your fingers, the mature fish will discharge a small amount of white semen.

Touch with your hands before collecting the eggs, check the softness of the female abdomen and gently squeeze it. If there is egg production, the dry guide method is used to collect the eggs; if there is no egg production, wait for a period of time before proceeding. an examination.

First catch the female fish that can ovulate. One person wraps her abdomen with gauze and faces the genital opening to the porcelain or container for egg collection. The container must be clean and water-free. The other person catches the female fish’s tail and gently squeezes it toward the anus. When pressed, the eggs are slowly squeezed out into the container. Pour in the prepared sperm suspension, stir with feathers, and add clean water to wash away the excess sperm. Insemination is completed after several times. The fertilized egg is spherical, greenish-yellow, with a little red spot, and has a diameter of 1.65 to 1.8 mm. The fertilized egg is not sticky at first, and will become sticky after about 20 minutes.

The fertilized egg should be spread on the attached egg sheet before it becomes sticky. Generally, materials such as screens and nets can be attached and gently stirred with feathers to make the fertilized egg Evenly attached, if the egg particles are attached too densely, it will affect the hatching rate.

2. Scientific feeding of fry bait
The newly hatched fry rely entirely on their own egg yolk as nourishment. The egg yolk gradually disappears in about 2 days. When the larvae can swim normally horizontally, they can go to the pond to eat. Fry open feed can use boiled egg yolk or small accelerando and cope pod plankton. Cook the egg, remove the shell and wrap the egg yolk with gauze, squeeze the egg yolk in a tray with water to form a water slurry of egg yolk particles The pool splashes.
As the fish grows up, they can be fed with water fleas, mosquito larvae, water worms, fly maggots and various small fry, or fed with silkworm pupa meal, pig blood, artificial seedling compound feed, etc. It is advisable to have a little bit of bait left in the pond before the next feeding amount, so as to prevent the fry from feeding each other due to insufficient feeding.
The fry are weak in resistance and have different specifications. If they are fed directly into a large pond, the fry will have a large range of activity and will consume a lot of physical energy. Moreover, the fed bait is difficult to eat for a while, causing waste and polluting the water quality. It can be intensively raised in the small pond first, and then raised in the big pond. This is not only easy to manage, but also allows the fry to better adapt to the new environment, and it is easy to get enough food in the small pond to promote their rapid growth.

Common sense of water disinfection and defense management
1: Fish ponds should be regularly cleaned of tiny parasites in the water. Sprinkle 20 kg of quicklime or 100 ml of bleach powder with water, once a month.
2: Keep injecting water every day, so that the water will not deteriorate easily and can also increase oxygen.
3: Feeding should be in a fixed position so that it is easy to clean up food residues and will not affect the environment of the entire pond.
4: Deal with the food residue left by the pond fish in time, so as to improve the water quality and not easily deteriorate.
5:A catty of fish is considered to be an adult fish, and an acre of pond can hold about 800-100 thousand, and the number of fish cannot be too many. Adult fish eat a lot and need to be fed three times a day. Feed the food in an appropriate amount, and feed a small amount of food, so as to avoid the loss of fish caused by death! The feeding food for adult fish is mainly our feed and straw. Whole grains can be used as non-staple food for feeding the fish, which can improve the immunity of the fish and reduce the disease! Pay attention to the water quality and increase oxygen every day.
6:The fish of about two catties can be divided into ponds. The number of big fish is about 600-1000 fry. It is fed with 100 carps and 200 silver carp. Silver carp and carp eat debris and will not follow Grass carp grabs food. Generally, the fish can grow up at this stage, so the feeding frequency should be more. The perennial grass carp is generally not raised too much. The market demand is about 4 kg. Therefore, small fish pond farming meets the needs of the current market. Fish are sold every year, which means there is income every year.