Ponds benefit paddlefish highly _4747

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Ponds with high benefit paddlefish

, Humus and other natural food debris can also be fed artificial feed and feed ingredients for no special requirements. The production of paddlefish in the pond, we can use the fertilizer, fertilizer and timely way to foster pond zooplankton to increase the amount of organic debris can also be fed directly to meet their basic nutritional needs with food. Fed with the diet in the process of change in food process should be tame pond paddlefish feeding one of the key issues. The FCR test smaller, I do not think that the preparation of food is very reasonable formula, but focus on a reasonable daily dressing and timely control of water quality, food organisms culture results. But because there is no experience culturing, so feed costs account for some proportion of the high cost of production. How to improve feed formulation and feeding means, methods, time, frequency or feeding in the pond is not the primary care needs further testing and research. 2. Pond water quality by paddlefish paddlefish natural food is mainly zooplankton,[link widoczny dla zalogowanych], water color, water quality will affect the amount of food to its non-labor, it should be proper control of the pond fertility. Paddlefish in the optimal growth temperature (21 ~ 24 ��) than the four fish (25 ~ 32 ~ C) is lower, the test pond water temperature is too high in the summer to replenish reservoirs in the bottom of the water to the pond, is conducive to the growth of paddlefish . Paddlefish requires dissolved oxygen in the 3.5 mg / l or more, so filling in the breeding process in a timely manner and timely start new water pond aerator is to increase production of paddlefish, reduce feed consumption, another key measure to reduce disease. 3. Although accustomed to the habits of paddlefish paddlefish habitat at the bottom, but it is to the upper feeding, and its gentle, poor jumping, easy to catch, purse-seine fishing in the first network test can catch from about 90%. Therefore, from the fishing point of view, should be very suitable for the fish pond and large,[link widoczny dla zalogowanych], the water culture. Hubei Xiangfan Vocational and Technical College Jonathan Daw Shu Xiang Feng Yun Ren Xiaoli Li Xiufeng Telephone (0710) 3903380 Postal Code 441021 l editor of Zhao Yongfeng fish Fugu pure pond technology from 2002 to 2004, we carried out in the Yangtze River plain ponds Fugu, the survival rate 80%, and adult fish size 380 ~ 450 grams, benefit more than 8500 yuan per mu, now breeding techniques are summarized below. First, the pond pond conditions 10 to 22 acres in size, depth of 2.8 meters can be maintained, each pond is equipped with inlet and outlet gates, one each, with 0.3 acre pond, 0.5 kW aerators, water for the Yangtze River water,[link widoczny dla zalogowanych], fish with lime before stocking 150 kg / mu clear pond disinfection. Second, the fish stocking 1. Source of fish species in 2002 purchased from Shanghai, from 2003 to 2004 over the previous year by their own cultivation of the species conservation by winter from greenhouses. Stocking of fingerling size at 70 to 100 grams, body robust, dynamic strength, fatness and high, bright color, no deformity, specifications and tidy. 2. Time and stocking density in mid-May (water temperature above 20 ��) began stocking fish, puffer fish stocking 500 per acre, with 250 to 400 g / tail chub 100, 250 to 400 g / End of bighead carp 20, Yangtze River irrigation water due to the direct satisfaction, small trash more by the end of June put mandarin fish species of 5 to 10 7 cm. Fish before stocking with 3% to 5% salt water bath 10 to 15 minutes, depending on the length of time bathing the extent of the species tolerance. Third, feeding and management 1. Adult eels fed with feed material,[link widoczny dla zalogowanych], through the feed mixer dough-like feeding the food table. Every 15 meters take a fresh platform, specifications 0.7 m �� 5 m,[link widoczny dla zalogowanych], feed food evenly fed to each stage, for ease of eating puffer fish check the situation, set up a 0.5 m �� 0.5 Fresh rice distribution activities Taiwan, 1 hour after feeding, the activity brought food units, check puffer fish feeding situation. At 2 feeding times (8:30 am ~ 9:00 pm 4:30 ~ 5: oo), on the amount of feeding the fish body weight by 3% to 5% body weight measured once every 15 days. 2. First, adjust the depth of timely water quality management, fish stocking the initial water depth of 1.5 to 1.8 meters, as the temperature increases and body growth, and gradually increase the depth, the hot season to maintain water depth of 2.5 ~ 2 .8 meters. Second, regulation of water quality, in the puffer fish culture period, the use of the Yangtze River ebb, for sets of natural water, so that the transparency of water maintained at 35 ~ 40 cm, and dissolved oxygen maintained at 4.7 mg / l or more. Third, the timely opening aerators, hot weather and every morning when opening aerators, floating head to prevent hypoxia. 3. Daily management Xuntang 2 times every day, mainly observed the activities of puffer fish and water quality, water temperature measured twice a day, every 3 to 5 days measured dissolved oxygen, PH, ammonia, transparency once. Fisheries management station Huang Renguo Jiangsu PC 225200 Jiangdu