Fish Feed Machine Knowleagde

Basic conditions of the pond
Choose a place with good water source, fresh water quality, no industrial pollution, good soil quality, and convenient transportation to build the pool. The pool area is 5-20 acres, the water depth is 2.5-4 meters, the pool bottom is flat, the pond foundation is firm, the water retention performance is good, and the surrounding ventilation is not high. Sunshield. It is best not to build pig pens and three-bird sheds (chicken, duck, goose sheds) at the base of the pond. If pig pens and three-bird sheds are indeed built, the animal excrement cannot be directly discharged into the fish pond. Appropriate release at the right time.

Preparation before stocking
1. Whole pond, clear pond. The pond should be drained before stocking, exposed to the sun for more than 1 week, and repair and strengthen the pond foundation during the sun pond. Use 225 mg/L quicklime for clearing the pond in the dry pond, or keep the pond water at 1 meter, use 50 kilograms of tea bran per mu, smash it and dissolve it, and then splash the whole pond. Do not enter new water within three days after clearing the pond, so as not to affect the clearing effect.
2. Fertilize and cultivate water quality. About 7 days after the pond, when the toxicity of the drug disappears, use a 60-mesh silk screen to filter the water 70-80 cm, and apply 300-400 kg of organic fertilizer per mu to cultivate phytoplankton bait. Gradually add water to 1 meter as the water becomes thicker. After bringing the seedlings into the pond, as the water temperature increases and the fish grows up, water is gradually added to the maximum water storage depth of the pond.

Nursery and stocking in ponds
1. Choice of nursery. Choose tilapia fry with smooth body surface, healthy physique, plump fish, neat size, high male rate, size of about 5 cm, and 5% salt water or 5-10 mg/L potassium permanganate solution After soaking, put it in the fish pond. 2. Stocking density. After the pond water has been tested for non-toxicity, put tilapia fry on the principle of 1 fish per cubic meter of water body, appropriately matched with 50 g/tail bighead fish 40-50 fish/mu, 30 g/tail silver carp 30-40 fish /Mu, after the tilapia grows to 100 g/tail size, put in 30-50 southern largemouth catfish/mu or raise an appropriate amount of largemouth bass in a timely manner.

Feeding management
1. Equipped with oxygenation facilities. Equipped with aeration facilities according to the principle of 1 aerator for every 5 acres, to ensure that the raised tilapia does not appear floating heads under high-density breeding conditions. Ensure high and stable production

2. Feeding. In the breeding process, in order to save costs and also comply with the principle of pollution-free, before tilapia reaches 150 grams, the fish will be cultured with fat water and rely on animal manure fertilizer ponds to cultivate biological feed for fish breeding. Generally, fertilization is once a week. Apply 100 to 150 kg per mu each time. After 2 to 3 months, after the tilapia raised reaches the size of 250 g/tail, enter the mid-term breeding, change the breeding method, and put in full price with tilapia feed for breeding. At this time, the theoretical feeding principle is Adhere to the "four fixed" feeding, usually feed 2 times a day, every day at 9-10 o'clock in the morning, 5-6 o'clock in the afternoon each time. The daily dosage is 3% to 4% of the fish's body weight, and 0.75 to 1 kg of Yinxiang brand tilapia feed can grow 0.5 kg of adult fish. In fact, when many farmers put in feed, as long as the fish can eat, on the principle of not wasting the feed, they can feed as much as the fish can eat. The tilapia grows faster, about 7-8 months. It can grow to more than 1 kg/tail. In the middle and late stages, keep the water quality fresh and ensure that the fish have a good appetite to achieve rapid growth