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Fish and duck raising techniques
"The fish in the water and the duck in the water" are called by the masses as "fish and ducks." This is a combination of fisheries and animal husbandry. The duck's splatter feed and duck dung are used by the fish to increase feed utilization, reduce fish farming costs, and increase revenue. 1. Conditions for fishery waters: Usually, the ponds or ponds with a land area of ​​5 mu or more, waters of small reservoirs, river forks, etc., require a water depth of 1.5 meters or more, adequate water supply, and convenient drainage. ? 2, duck facilities: Ducks built in the pond, the sun should be sufficient, drainage should be convenient, the duck house should be flat, with sandy soil is better. The size of the duck house is determined according to the amount of rearing. If the duck accommodates 7-8 feathers per square meter, the meat duck uses 5 feathers per square meter. Between the duck house and the surface of the water, there is a duck playing field, the size of which is equal to the area of ​​the duck house. The ground of the sports ground should be flat, slightly inclined toward the water surface, and the slope should not exceed 30 to facilitate the movement of the ducks. Each group of ducks is suitable for 500-1000 feathers. Put bamboo or net fences at the entrance to the playground for ducks to enter the water from the playground. Bamboo curtains or nets are 60-80 cm above the water surface and 50-60 cm into the water, so that the ducks can only go outside the fence and go out, but the fish can freely access from under the bamboo curtain or net. The water area of ​​the fence is about 1-2 times that of the duck house. 3, feeding fish species: to take more varieties of polyculture, so that different food, different levels of fish polyculture, improve the utilization of water and the rational use of bait. Usually feeding species: ((1) Carp, living in the upper water layer, hi jump, living in fertilizer water, the main filter for plankton, grow faster, generally second-instar fish up to 1-1.5 kg. (2) carp Due to the fact that the head is larger than the deafness, the masses call it the "big-headed owl." Living in the middle and upper layers of the water, it is not good for jumping, and it is easy to catch. The main filter is mainly zooplankton and the second-instar fish can reach 1.5-2.5 kilograms. Grass carp, often living in the middle and lower layers of water, gets its name because of its preference for grazing, and its food is large and fast growing, and the second-instar fish can reach 1.5-2 gongs.. (4) Carp lives in the bottom layer of water and is mixed with food and grows quickly. 5) Squid lived on the bottom of water and used phytoplankton as the main food, and the first-instar fish was 0.1-0.2 kilogram of the second-instar fish which could grow up to 0.5 kilograms. Although the individuals were small, the group had higher yields. At the bottom of the water, the omnivorous fish, which is dominated by plant foods, can directly swallow the remaining food of the duck and grow faster. The first-instar fish weigh 0.4-0.7 kilograms, which is the ideal fish for fish and ducks. , It has the characteristics of complex feeding, fast growth, strong fertility, short breeding cycle, and few diseases, etc. It mainly feeds on plankton and can directly ingest duck's residual feed, etc. Up to 0.15-0.3 kg in weight in the year, large Up to 0.5 kg is one of the best breeding fish for ducks and ducks.? 4. Breeding duck breeds: (1) Beijing duck, meat duck, white feathers, and up to 2.5-3 weight for 56 days (2) Cherry Valley Duck, a meat duck, with white feathers, and a short neck compared with the Beijing Duck, which can weigh up to 2.8-3 kg for 56 days. Small ducks are raised on the 130th, and the annual output is 250-300.The mature ducks weigh 1.5-1.6 kg and the female ducks 1.6-1.7 kg. (4) Jinding duck is a small duck of Fujian type. It will be open on the 140th, and will produce 240-280 bait per year.The ducks will weigh 1.5-1.7 kg and the female ducks will 1.9-2.4 kg.? 5. Feeding of fish and ducks: 80-120 ducks per mu can be raised. If there are often micro-flowing water, the amount of duck feeding can be appropriately increased.Generally, one duck per year can produce 2-3 kilograms of fish.(1) Pond fish raising net production of 350 kilograms of stocking (tail/acre): 250 (in two deliveries), é³™150 (two deliveries), é²®1200, 鲤40, grass carp 60, wild pheasant 150, tilapia 700. (2) Shantang small reservoir aquaculture net yield 200 kg stocking Quantity (tail/mu): é²¢50, é³™100, é²®400, é²®50, grass carp 30, 鲤30.? 6. Feeding management of ducks: Available To feed the duck feed sold by the feed company, feed “four to two nosâ€, that is, the feed must be reasonable, the amount to be fed should be appropriate, the feeding time should be fixed, the feeding tools should be cleaned, the moldy feed should not be fed, the moldy feed should not be fed, and the smell should not be consumed Water: The feed is fed 3-4 times a day, usually more at dinner, such as 3 times a day, 35% in the morning, 20% in the afternoon, 45% in dinner, etc. Duck management: Before and after the autumn, for one year old The female duck carried out artificial forced plucking, that is, only three days of feeding water and a small amount of feed, and began to feed a small amount of mixed feed in the afternoon of the third day. At this time, the duck feathers are fluffy and easily fall off. Artificially, the wings and feathers of the tail can be removed to promote the regeneration of new feathers. After the hair is pulled, the amount of feed should be gradually increased until it is resumed.