The long-knot fish is known as the river group, and its meat is tender, with few thorns, and it is particularly fat, and it is a valuable economic fish. The long-kissing fish live in the bottom of the water and live in the rocks in the slow-flowing deep water area. They are docile, easy-to-fishing, and pleasing to the shade. They cluster in the water during the day and disperse into the upper water at night to feed. The long-knot fish is a carnivorous fish that feeds on small fish, shrimps and aquatic insects. It also feeds on artificial diets after acclimation. The critical growth temperature of long-knot fish is 15 to 30°C, and the optimum temperature is 24 to 28°C. . The optimal temperature for breeding is 23-27°C. Long-knot fish are less tolerant to hypoxia and grow best in water with dissolved oxygen of 5-7 mg/l. Floating head occurs when dissolved oxygen is less than 2.5 mg/l. At 1.5 mg/l, Pan Pan died. In general pond culture, the fry released at the end of the year can reach about 200 grams per end at the end of the year. The long-kissing fish is about 4 years old and mature, and from May to June each year is the breeding period. The fecundity of 3-6 kilograms of female fish is 1 to 100,000 capsules. The long-knot fish may be cultured in ponds and intensively cultured. And cage culture. The pond culture method is introduced as follows: 1. Pond selection The fish pond with adequate water supply, fresh water, and convenient water injection and drainage is not suitable for aquaculture ponds, fertilizer ponds or dead ponds with only rainwater recharge. The area is about 1000 square meters and the water depth is 1.5~ 2 meters. The pool with slope protection is better. Second, the fish stocking ponds can be planted after routine disinfection. The nitrofurazone medicinal bath can be used before the fish is in the pool. About 30 to 50 grams of fish species, stocking capacity of 500 to 1,000 per acre. Appropriately match a small amount of filter-feeding fish to control the water quality, and put 150 to 250 grams of oyster and squid 50 to 100 per acre. Third, feed feeding Feeding leeches, terrestrial crickets, and gradually increase the amount of compound feed for domestication, so that it can be converted into a fully-fed artificial feed. The tame-kicked long-knot fish may be fed with foods with a protein content of 40% to 45%. It is fed 1 to 2 times daily, and the daily dose accounts for 1.5% to 3% of the fish's body weight. It can also be fed with fresh live fish such as small, low-value fish, cockroaches, snails, oysters, etc., but they should not be used interchangeably. Fourth, water quality management As the long-knot fish threaten the four native fish intolerance of hypoxia, so it is more important than regular farming to regulate water quality, keep the water fresh, generally control the water transparency in the 30 to 40 cm, to prevent hypoxia. From May to June, change the water once every two weeks, change the water once a week from July to August, pay attention to adding new water when it is low or lack of oxygen, or increase the oxygen by using an aerator, and prevent the generation of harmful gases. V. Prevention and treatment of fish diseases Long-knot fish are more endangered and have less disease. Generally, 0.2-0.3 mg/kg of trichlorfon can be used to prevent and treat bacterial diseases in the high season of fish disease. Every 15 to 20 days, 15 to 20 kilograms of lime should be applied, or 1 mg/kg bleach solution should be sprayed all over the pond. Long-knot fish are more sensitive to drugs, and conventional fish diseases can be killed with 0.7 mg/kg copper sulfate. The drugs such as trichlorfon, potassium permanganate, and formalin are more tolerant. For unfamiliar fish medicines, it is best to do safety tests before use.
Vitamins are organic compounds and vital nutrients that an organism requires in limited amounts. An organic chemical compound (or related set of compounds) is called a vitamin when the organism cannot synthesize the compound in sufficient quantities, and it must be obtained through the diet.
Your body needs them to work properly, so you grow and develop just like you should. They are essential for the normal growth and development of a multicellular organism. Once growth and development are completed, vitamins remain essential nutrients for the healthy maintenance of the cells, tissues, and organs that make up a multicellular organism; they also enable a multicellular life form to efficiently use chemical energy provided by food it eats, and to help process the proteins, carbohydrates, and fats required for respiration.
Essential Vitamins
Antioxidant Vitamins,Natural Vitamins,Essential Vitamins,Anti Aging Vitamins
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