The breeding techniques of Tongjiao fish
Medical Vinyl Glove
1.Type:Powdered or Powdered free ,medical vinyl glove
2. Different colour :Nature ,Blue ,white ,yellow etc. for hospital examination after surgical.
3. Passed Certification: CE,FDA510K ,EN455,EN374,ISO9001,ISO13485 etc.
4.Medical grade,AQL:1.5,2.50,4.0 ;
5.Size: S,M,L,XL,XL etc. and weight as your requirement.
6.no latex and non sterile
7.beaded cuff;sigle use only
8.soft and comfortable.
9.OEM or ODM packing.
10.usage widely for hospital medical examination,health care,hotel ,restaurant ,home cleaning etc
Medical Grade Vinyl Glove,Disposable Medical Gloves,Medical Examination Gloves,Disposable Gloves Zibo Hongye Shangqin Medical Science and Technology Co.,Ltd. , http://www.vinylgloves.cn
1. The living habits of local pond angle fish: survival temperature 7°C~38°C, optimum growth temperature 20°C~33°C, omnivorous, mainly animal feed, resistant to hypoxia, hi dark, gregarious burrowing, strong With regard to escape from the water, the wild population has a yellowish body color and spots on both sides. The artificial breeders have a light body color and are mostly gray and black.
2. Pond conditions: The pond ponds for local pond corner fishes are generally 333~1333m2 in water depth of 1.2~1.8m. Masonry around the ponds is to be solidly built with masonry mortar to prevent leakage and set in the diagonal positions of ponds. Drain outlets, and set the barrage, the water inlet is best to extend into the pond outside the pool 1m.
3. Pond facilities: Ponds that cultivate local ponds should generally have a water hyacinth or a shading shed. The area is about 3 to 5 m2. In addition, because the local pond corner fish is hi, it should be placed in the pond tile, bamboo or asbestos (from the bottom of the pond 20cm) take a few fish ponds for the pond corner fish habitat and shade, but do not put the bamboo, Pine forks and other objects (some of which were set up for theft) were thrown into the pond so as not to affect the normal activities of the fish.
4. Qing Tong disinfection: in the seed pond before the pond, dry pond or water 10cm, and then sprinkle with 75kg/667m2 quicklime watered, be sure to splash evenly throughout the pond, even the pond walls should be spilled. It is best to sterilize the pond for a few days before returning water to 50~70cm. After returning to the water for 7~10d, the pH can be determined to be ≤9 or the test water can be used to prove that the toxicity has disappeared.
5. Cultivating water quality: If fertigation ponds can be fertilized in front of the seedlings, and a large number of larvae, copepods, and rotifers are to be bred, then there will be sufficient live larvae after the seedlings in the lower pond, and they will eat fast and grow quickly. With strong disease resistance and high survival rate, the cost can be reduced by applying 300 to 400 kg/667 m2 of fully-fermented and decomposed livestock manure after 2 to 3 days of disinfection in the clear pond, and then impounding water. Normally after 7 days of fertilization, the growth of plankton in the water reaches a peak period. This is the best time for seedlings to be put in. After that, it is only necessary to apply 100kg/667m2 fertilizer every 5 days to continuously feed the fish with live fish until the fish. As long as the finger-like thickness, the period (about 25 ~ 30d) can not feed or only cast a small amount of formulated feed.
6. Fish stocking: The stocking density of the local pond is generally 1-30000/667m2, and the stocking density is too large to easily cause disease death, which directly affects the survival rate; secondly, it will lead to uneven feeding, and there will be differences in size, affecting yield and benefit. The third is that in the middle period of cultivation, the production capacity of the pond is often exceeded. The fish in pond corners only eats for a long time, and the breeding cycle is greatly extended. Fourth, the aquaculture investment is too large and the risk increases. Therefore, the pond culture of local pond angle fish should strictly control the stocking density. When laying the seedlings, it is necessary to select the species with strong physique, long shape, disease-free and uniform size, one-time investment, and avoid two groups of fish in the same pond. When stocking, pay attention to the temperature difference no more than 3°C, stocking size 3~7cm/tail, the larger the stock size of stocking, the stronger the adaptability to the environment, the higher the survival rate, the more than 100g per 667m2 can be used for squid and squid ( Commonly known as cockroach and squid) 100 tails. Most of the seedlings in my county are from the end of March to mid-October.