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Yellow Catfish Polyculture Technology: Efficient Micro-net Cage Farming Method
Setting up micro-net cages in ponds used for farming other aquatic species to raise yellow catfish is a high-yield farming method that increases water surface utilization, featuring simple operation, low investment, easy rearing, fast growth and high returns. 1 Net cage setup The net cage is sewn from polyethylene netting, 2 m long, 2 m wide and 1.2 m high, with a mesh size of 0.5-1 cm. The cage uses a closed stretcher floating-fixed type, with a 9-mesh net cloth as a cushion layer at the bottom, the cushion layer edge being 20 cm high, to reduce feed loss; the upper part of the cage rises 30 cm above the water surface
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How to slaughter rabbits, take the hides and tan them more efficiently
Rex rabbit fur has the characteristics of being short, fine, flat, dense and beautiful, is in great demand on the market and commands a high price, but the market also has very high quality requirements when purchasing rex rabbit fur. To sell rex rabbit fur at a good price, raisers should master the following six tips: 1. Feed formulation. The rex rabbit is a dual-purpose rabbit for both fur and meat, and must both grow fur and grow meat. Feed nutrient levels must be high, generally with digestible energy of 11.4-11.9 MJ/kg, crude protein of 18%-19%, crude fiber of 6%-8%, crude fat of 3%-4%, calcium of 0.88
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4 Efficient New Fish Medications to Help Prevent and Treat Fish Diseases
1. High Chlorine Powder. This product is a bactericide; used at the right time, it has excellent preventive and curative effects on hemorrhage disease and red-skin disease, print disease, gill rot, black gill, enteritis, shell rot and red-leg disease in fish, shrimp, crabs, soft-shelled turtles, eels and frogs. It has a notable disinfecting, sterilizing and improving effect on pond bottom sediment and pond water. 2. Fish Parasite Nemesis. This product is a new type of highly efficient parasiticide (anthelmintic), capable of powerfully killing fish parasites such as Lernaea, Sinergasilus, Trichodina, Dactylogyrus, Gyrodactylus, sporozoans, Diplozoon and monogenean trematodes, and for
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Detailed Explanation of Early High-Yield and Efficient Cultivation Techniques for Snowflake Pear
The courtyard pear orchard of Qu Guohui in Ping'erfang Village, Guantun Town, Dashiqiao City, is a city-renowned typical example of dense planting for early high yield. The orchard was established in 1992, with an area of 800 sq m, planted with 133 Snowflake Pear trees at a spacing of 2m x 4m. All trees bore fruit by the 4th year, with a yield of 400 kg, sold at 2.80 yuan per kg; in 1996 the yield was 2100 kg, sold at 2.60 yuan per kg; in 1997 they were 4000 kg and 2.60 yuan respectively; in 1998 they were 6100 kg and 2.40 yuan respectively, with an annual income of 14,600 yuan
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Imitative wild cultivation technology for Gastrodia elata: efficient and material-saving
Terminology explained: ① From wild Gastrodia elata dug up over many years, it is not hard to find that the populations with large tubers, dense growth and high yield share a common set of features, summarized as: thick leaf-litter layer with tubers breaking through the ground (exposed above the surface), loose soil so air is not blocked, seven parts shade with little sunlight, and moisture suited to each of the four seasons. The inspiration for artificial imitative wild planting of Gastrodia is shallow beds, thin soil and thick mulch. ② High efficiency: imitative wild Gastrodia intercropped in the same bed with sweet potato gave a test result in which the total yield of Gastrodia was twice that of sweet potato, hence
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Shenli Automatic Cotton Boll and Husk Separator, efficiently separating cotton from husks
The Shenli brand automatic program-controlled cotton boll and husk separator is a practical cotton machine developed and invented by Jiangsu Yeyi Industrial Development Co., Ltd., and has applied for multiple national patents. Its arrival has freed cotton farmers from heavy labor, and in today's increasingly tight labor market, it is a capable good helper for cotton farmers to achieve prosperity. The machine weighs 65 kg, rated voltage 220 V, rated power 750 W, power consumption 0.75 kWh, cotton-husk separation rate 95-98%, husking rate 93-95%, work
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What issues should be noted in the efficient cultivation of kernel apricots?
Kernel apricot is one of the main dried fruits in northern China, with excellent economic returns. In recent years, due to the development of almonds, the comparative benefit of kernel apricots has somewhat declined. To improve the production efficiency of kernel apricots, comprehensive measures should be adopted. 1) Develop in suitable sites. Kernel apricots are drought-tolerant, tolerant of poor soil, and widely adaptable, but for efficient production, orchards must be established in locations with deep soil layers, fertile soil, and sheltered, south-facing slopes. Because kernel apricots bloom early and are susceptible to late frost damage, avoid establishing orchards on mountain ridges, wind gaps, and low-lying areas. 2) Pay attention to configuring pollinizer trees.
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How to efficiently utilize the second crop of Oriental lily flowers
Oriental lily bulbs are generally grown for only one crop abroad, then dug up and discarded. Based on China's national conditions, Chinese lily growers have developed a reuse technique for Oriental lily bulbs, which is now applied in many places. However, because the second-crop flowers produced by reusing Oriental lily bulbs are mostly harvested and marketed from June to August, when the selling price of lily cut flowers is relatively low, the economic benefit is limited. In the past two years, the Gansu Provincial Flower Engineering Technology Research Center, in cooperation with Gansu Lintao County Meilan Flower Company and the Lintao County Seed Farm, has explored a
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Efficient Cultivation Techniques for Oyster Mushrooms Grown on Corncobs
It is estimated that every 100 kg of corncobs can produce 100-150 kg of fresh oyster mushrooms, with a biological conversion rate of 150%-250%. Material selection and processing. Select fresh corncobs from the current year that are free of mold, expose them to sunlight for 2-3 days, and crush them to the size of corn kernels; screening is not required. Preparation of the growing substrate. Reference formula: corncobs 79%, soybean straw 15%, lime 4%, gypsum 1%, superphosphate 1%, urea 0.3%. Preparation method: first dissolve the lime and urea in water, then mix them into the material, with a water-to-material ratio of 1:1
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Efficient Fish-Clam Polyculture Methods and Key Technical Points
In 2004, I conducted a pond fish-clam polyculture experiment and achieved relatively good economic benefits. The farming details are described as follows. I. Experimental Materials 1. Preparation of farming ponds Two standard ponds excavated from low-lying fields were selected (having been used for fish farming for three years), with a total area of 10.2 hectares, pollution-free, facing the sun, well ventilated, oriented north-south, rectangular in structure, with an average water depth of about 2 m. Water intake and drainage were convenient, with abundant water sources and good water quality. 2. Pond clearing and disinfection One week before stocking fish and clams, on a sunny day, for each
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