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 Wysłany: Pią 22:01, 28 Sty 2011 Temat postu: Founder domesticated silver crucian carp breeding |
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Founder domesticated silver crucian carp breeding techniques of pollution
em. Stocking of fingerlings stocked 2.1 times 2: When the water temperature stable at 10 ~ (2 above stocking. 2.2 stocking: a body weight of the fish 60 ~ 75g, 1000 tail / mu. Sterilize 2.3 species: salt 1 % to 3%, 5 to 20 minutes soaking; potassium permanganate l0 ~ 20mg / L, bath l5 ~ 30 分钟. 3ll ¨ I 3.1 feed requirements of breeding management: the crude protein content of feed is about 30% 3.2. tamer food: Founder of silver carp stocking,[link widoczny dla zalogowanych], you can start tame food before each feeding vessels to use fixed-tap a particular sound, and then feeding again the formation of food conditioned reflex Taiwan, Japan and feeding 7 to 8 times in 30 minutes. After about 7 days or so tame food, you can make the formation of water clusters snatch the fish's habits, and then it can be turned into a normal fed. 3.3 feeding amount: According to the weather, water temperature, feeding the fish properly regulate the amount of feeding conditions and feeding times. the water temperature below 18 ~ (2, weight of fish at feeding amount of 1% to 3%, 2 times a day feeding. the water temperature at 18 ~ (2 or more, feeding amount of fish body weight at 3% to 5%, at feeding 3 to 5 times. 3.4 feeding method: feeding rate of spreading investment and snatch the fish should be based on the situation to determine, as intense feeding, should increase the feeding area, and to speed up the feeding speed, a fast and slow by slow rhythm, feeding time every 30 to 40 minutes. 4 .4.1 patrol daily management pool: fish, after running , twice daily Xuntang 1, to observe changes in water quality, fish feeding activities and so on, be sure to promptly adjust the amount of feed fed. to eliminate the debris pool to keep the pool clean and found a dead fish, sick fish should promptly picked up and buried. 4.2 Water management: water temperature changes with the seasons and the new water conditioning water filling, usually filling a l5-day times, each time with water l5 ~ 30em, but in the hot season, 1 to 1 week , the hot season sunny noon aerator 1 to 2 hours. (continued on page  * 3 total 106 fish loach fish Heilongjiang rice farming technology in recent years, the consumption in the loach been optimistic about the prospects of the case , we have been breeding experiment in many ways, the experience is very suitable for rice farming to the loach,[link widoczny dla zalogowanych], and can be Loach, dual-harvest rice. now Loach's rice farming procedures are summarized as follows: 1 for rice farming Loach adequate water source must be selected, no pollution, soil fertility, water retention good plots. 2 than non-paddy farming Loach ridge ridge width and height, solid. Also, according to the size of rice fields, the actual length and width of the inside of the excavation by the ridge width of 0.5m, 1m deep ditch about 3-5 fish. This high temperature in the rice fields or sprayed into the fish loach can ditch to escape,[link widoczny dla zalogowanych], but also easy to harvest fishing. 3 stocking density is generally 1-1.5 million / acre, specifications can be 5em so. 4, feeding on the bait, according to local conditions, to soybean, corn, wheat bran-based. loach generally do not release immediately after the feeding rice to make rice fields meet the loach in 4-5 days Hello again. to 2 times a day is appropriate, according to Loach's food intake to increase or decrease the amount fed. 5, with special emphasis on strengthening the management, in particular reinforce the ridge to regular and timely checks stopped fish equipment. loach ability to escape special ' strong,[link widoczny dla zalogowanych], particularly rice should be taken to avoid rainy days, the water level is too high Loach escape. In addition, special attention to prevent pesticide contamination of water into the paddy fields. 6 in the fishing will be let go of paddy water, leaving fish Goushen Water District, and then in the outlet put a string bag, then put the water in the ditch net fish, catfish naturally into a net. (Mongol Autonomous County Livestock and Aquatic Centre Wang Tiejun) (on page 3) 5 5.1 disinfected regularly to prevent diseases, water : 15 days 1, lime 20-25mg / L. 5.2 common diseases: name of disease onset of symptoms treatment of seasonal water temperature in the 15-25 ~ C disease, mouth, gill covers and fins congestion, gill Quanchiposa triclosan Isocyanurate 0. hemorrhagic 20-35 to 12 for the peak incidence of gray, reddish muscle, intestinal congestion, anal swelling, abdominal swelling, soft reduction abdomen 3-0.5mg / L, day treatment,[link widoczny dla zalogowanych], even using 3 second yellow scales off water out of focus, dorsal fin, caudal fin not bleach skin fester disease perennial Quanchiposa 1.5mg / L with the degree of gill rot decay gills with sludge from April to October, congestive Quanchiposa opercular skin bleaching powder 1.5mg / L of visible parasites in the body of needle-like parasite Quanchiposa trichlorfon 0.3-0. anchor head Ergasilus temperature in 12-33 to 12 tables, fins and eyes on the 5mg / L, every other week 1 , once every 2 Quanchiposa copper sulfate 0.5mg / L, black fish Trichodina from April to July, an increase in body surface and gill mucus plus ferrous sulfate 0.2mg / L · 8 ·
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