Second, carp into the box density stocking density 40-50 times higher than the density of pond breeding, to reach more than 90% of the survival rate, the stocking density should be controlled at 146 / m 2 below.
Third, the catch and transport of fish species should be stopped three days before catching. When catching, the pool water should be kept at 30-40 cm, and should be pulled with a trawl to avoid dry pond fishing. The captured fish species should be kept in the hopper for 4-5 hours before being transported.
Fourth, cage feeding generally from the fish into the box the next day, began to feed, feeding a small number of times, feeding once every 2-3 hours, the amount of feeding depending on the fish to eat the situation may be.
Fifth, nutrient requirements Minerals and trace elements, is an essential nutrient for cages raising squid. When carp is highly intensively cultured, these substances are suitable for 4%-5% of the total dry feed.
1. Minerals Minerals such as calcium and phosphorus are important constituents of the bones. 99% of the total calcium in the fish, and 80% of the total phosphorus is present in the bones. Domestically, it is generally believed that calcium and scale ratios are 1:1 in cage-raised cod fish. Absolute additions of calcium salts and phosphorus salts in feeds are all slightly greater than 1. In order to maintain the acid-base balance in fish and adjust the osmotic pressure in the body, in the preparation of carp feeds based on plant-based raw materials, about 0.5% of salt should generally be added to promote the growth and development of carps. Magnesium is a choline ester. Enzymes and other activating factors. Adding 60-70 mg of magnesium to 100 g of dry feed can significantly promote the growth of salmon and increase feed conversion.
2, trace elements are currently used in the domestic mainly in the following trace elements: Cobalt is an anti-anemia factor and growth factor. Adding 3 grams of cobalt chloride per ton of salmon feed can increase the growth of carp by 15%-20% and reduce the cost of feed by 20%. Copper is a coenzyme for urease, tyrosinase and lysine oxidase. And is closely related to blood circulation. Adding 3ppm copper to the carp feed has a good promotion effect on the growth and development of fish: Adding 13ppm of manganese to carp feed can increase the growth rate and prevent the formation of bones; iron is hydrogen peroxide and peroxidase Make up ingredients and participate in blood circulation. Adding 80ppm of iron to the carp feed will ensure rapid growth of carp carps.
Procyanidins of Black Goji Berry far surpass blueberry(The Black Goji Berry contains procyanidins 3690 mg / 100 g; Blueberries contains procyanidins 3380 mg / 100 g), thus black Goji berry is the natural wild fruit contain the highest procyanidins ever discovered, besides, it is the most effective natural antioxidants, The effect of procyanidins is 20 times of VC, 50 times of VE. The vitamins, minerals and other nutrient content in black Goji berry is also very rich, especially the anthocyanins that can sweep away free radicals, have natural anti-oxidant function. The medicinal and health care value of black Goji berry is much higher than ordinary Red Goji Berry, it is known as "soft gold".
Black Goji Berry
ZHONGNING JIDING BIO SCIENCE DEVELOPMRNT CO., LTD. , http://www.jidinggouqi.com