Ponds carp high technology test reports _2691

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Ponds carp high technology test report

Temperature, dissolved oxygen and other environmental factors change. The amount of carp at feeding fish generally accounts for 4 _-7% body weight is more appropriate. (3) feeding technology. After acclimation, in accordance with the Each feeding to achieve the (4) water quality regulation. L0 days before stocking, water lm, after rising with the temperature deeper level. Usually early June water depth 1.5m, 7 月初 remain 2m, 8 月初 replace 30 --- 40cm of fresh water, and every day mu l0 2o lime Quanchiposa time, the PH value is transferred to 7-0 above. (5) fish disease control. Adopt a (6) daily management. Test pool located hand feeding and management, adhere to the morning, afternoon and evening Xuntang 1; measured water temperature 2 times a day; carp samples collected every 5 days Last check growing l, measured body length, body weight, calculated on the amount of feeding; measured once every l0 days,[link widoczny dla zalogowanych], PH value and dissolved oxygen. The cards set file and do the daily record. Third, the results of 1,[link widoczny dla zalogowanych], yield. From 10 May to 20 September, raising a total of l33 days. l0 acres of commercial fish ponds communist 7500kg, of which carp 6ooo ~, accounting for 80% of total output, silver carp and bighead carp 15oo ~, the average output per mu 750kg,[link widoczny dla zalogowanych], weight gain l0 times. 2, the economic benefits. l0 acres of ponds total expenditure for 39,300 yuan, the total income of 51,080 yuan, the total profit of 11,[link widoczny dla zalogowanych],780 yuan, 1,178 yuan mu profit, the main carp feed conversion rates as 1_8. Input-output ratio is 1:13. Fourth, understand the experiment, we feel that the main carp artificial ponds more than 750kg per mu, the culture should pay special attention to the following technical problems: 1 fish longer growing season. Because the city is located in the Alpine mountains, fish a shorter growing season, the best fish stocking at the end of the 4, but no later than May 10. After entering in mid-September, the growth of fish is still faster, should continue to adhere to the feeding,[link widoczny dla zalogowanych], and improve post-feeding. 2, the stocking of large-sized fine species. Put in place should be as a species put together enough, otherwise specifications missing for too long stocking, feed particle sizes affect the feeding inhibition of growth. Domesticated species of domesticated carp, without a long time, the success rate is low, and easily domesticated domesticated carp fingerlings. At the same time, must be used to achieve high-yield varieties of large size carp, specifications must be end-loaded on more than 100g, the variety on the mirror carp, common carp and other varieties as the best Matsuura, feeding ability, rapid weight gain. 3, stocking density and water quality control. Test pool water body stocking density and the amount contained in the fish pond is the city average of 2-3 times of traditional culture. Water quality throughout the breeding process should be kept clean. Regulate water quality generally use the following three ways: First, physical methods, namely, regulation of water aerobics and water pumps, aerators start in July and August, while maintaining the water level stability of the updated part of the water with the pump; Second, chemical methods, namely, regularly spilled lime, general mu 5 to l0, it can enable the PH value of 7 or more increase in the buffering capacity of pool water, can increase water fertility. Dominant due to eating of fish, feeding a large amount of metabolites more acidic pond environment trends; Third, biological methods, that is the main carp fish pond with the right amount of fertilizer and water, regulating the amount of water, plankton, and effective use of particles feed debris. If the water conditions can continue to be effectively controlled, can increase the stocking, production will increase. 4, fed with high-quality pellets El appropriate. Pellets not only to pay attention to the full price of nutrients, but also the production process in the processing of various ingredients are mixed directly affect the quality of feed, with the crude protein content of grain to feed 28% or more, can not use high salt content of fish meal than 3%, otherwise the fish will not only not long, and will have adverse consequences. The size of feed pellets and fish size to fit, fitness done El, El appropriate bait fish can reduce energy consumption, improve feed utilization. Processing of grain fineness of feed materials as small as possible, otherwise, not only poor particle shape, but also unfavorable for the digestion and absorption of fish. Feeding method should be scientific, must be domesticated carp to floating snatch, otherwise, not only to cut into l-3, and the loss of food nutrition major, causing serious waste. 5, fish disease control and daily management. Fish disease prevention and control can not be ignored, especially in high-density culture. Before feeding on fish ponds and disinfection, feeding period to actively prevent, generally inspected once every 5 days the fish situation. Daily management of the hand must be set up, identify problems and timely treatment. * 27 *