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To raise pigs well, feed formulation is the key
First, it must be varied and reasonable to ensure comprehensive nutrition. Among the three types of feed for pigs - green feed, roughage and concentrate - green feed contains more water, is bulky, easy to digest and highly palatable, and contains a variety of vitamins, minerals and protein; roughage is bulky and has a relatively high crude fiber content, and when reasonably combined it can increase the contact surface between feed and digestive juices and has a laxative effect, easily giving pigs a feeling of fullness, but it is difficult to digest; concentrate is characterized by small volume, high nutritional value and easy digestion, but is relatively lacking in minerals and vitamins. Second, pay attention
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How to mix fish feed? Sharing several practical formulas
1. Suitable for grass carp or silver carp and bighead carp: rice straw powder 70%, soybean cake 15%, cottonseed cake 10%, cornmeal 5%, plus bone meal 1%, salt 0.5%, and an appropriate amount of vitamins. 2. Suitable for cage-cultured grass carp: soybean stalks or peanut vines 60%, soybean cake 15%, rapeseed cake (or cottonseed cake) 10%, cornmeal 10%, fish meal 5%, plus clam shell powder (or bone meal) 1%, salt 0.5%. 3. Suitable for grass carp: dried green grass powder (or peanut vines, sweet potato vines) 45%, soybean cake
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Six fish feed formulas, useful reference for scientific fish farming
1. Suitable for tilapia in flowing water and cage culture: grass meal 20%, fish meal 30%, soybean cake 20%, corn gluten meal 20%, rice bran 20%, wheat bran 10%, corn flour 5.5%, bone meal 1%, salt and vitamins together 0.5%. 2. Suitable for grass carp: sweet potato vine meal 45%, soybean cake 13%, rice bran 15%, wheat bran 12%, fish meal 3%, corn flour 10%, bone meal 1.5%, salt 0.5%. 3. Suitable for bighead carp, silver carp and grass carp: rice straw
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Detailed Explanation of the Key Points of Formula Fertilization Technology for Cotton
Currently, it is the critical period for cotton land preparation and fertilization, in order to do a good job in cotton formula fertilization and lay the foundation for high quality and high yield. The cotton fertilization technology is now provided to the majority of cotton farmers for reference: 1. Pay attention to the application of farmyard manure: farmyard manure can improve the soil, enrich soil fertility, and contains various nutrient elements needed by crops, providing what crops need for growth. It has complete nutrition and is rich in organic matter, and has a significant effect on improving the soil and increasing the utilization rate of chemical fertilizers. 2. Increase the application of phosphate fertilizer: phosphorus has low mobility in the soil and dissolves and releases slowly,
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Detailed Explanation of Key Technical Points for Formula Fertilization of Cotton
Cotton has an indeterminate growth habit, strong regeneration capacity, highly controllable plant architecture, and a high fertilizer demand. Generally speaking, adequate fertilizer is the foundation for high yield and quality in cotton. Sufficient phosphate fertilizer can promote vigorous growth of cotton plants, increase boll weight, and advance maturity. Potassium fertilizer is a catalyst for various enzymes in plants, and can promote photosynthesis and cellulose synthesis. The fertilization technique for cotton is the eight-character formula fertilization method of "adjust nitrogen, increase potassium, supplement phosphorus, spray boron." Specifically, the following 5 technical measures should be well implemented. 1. Attach importance to the application of farmyard manure
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How to reasonably choose a scientific formula for oyster mushroom cultivation?
Oyster mushrooms have low requirements for raw materials, and many industrial and agricultural by-products can be used as raw materials. However, whether the carbon-to-nitrogen ratio in the growing medium is scientific and whether the amounts of other supplementary materials added are reasonable are issues that cannot be ignored in oyster mushroom production. At present, bag-cultivated oyster mushrooms mainly use cottonseed hulls as the raw material, so the quality of the cottonseed hulls directly affects the level of oyster mushroom yield and even whether cultivation can succeed. Fresh, high-quality cottonseed hulls should be selected; if moldy and deteriorated cottonseed hulls are used, it will cause contamination by weed molds and may even lead to cultivation failure. Pesticides or other
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Detailed Explanation of Three Fish Feed Formulas and Their Mixing Methods
(1) Grass carp feed formula (1) Rice bran 40%, wheat bran 38%, soybean cake 10%, fish meal 10%, yeast powder 2%. The feed conversion ratio of this formula is 1.9; if green fodder is added separately, the feed conversion ratio is 2.2. This formula was provided by the Pearl River Fisheries Research Institute. (2) Rice straw powder 80%, soybean cake 10%, rice bran 10%. This formula was provided by the Yangtze River Fisheries Research Institute, with a feed conversion ratio of 4.9. (3) Corn meal 70%, fish meal 10%, soybean cake powder 15%, wheat bran 5%. Its additives and binders are: sweet potato 12%
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How to formulate feed for pigs during lactation? Sharing practical formulation tips
Sows during lactation need large amounts of nutrients to support milk production. At peak lactation, the sow's milking capacity exceeds the nutrients she takes in through feed and the nutrients excreted in milk are greater, so the sow's body condition declines rapidly. Formulating high-quality, high-nutrient-density feed for lactating sows is the best way to resolve this contradiction. Feed Formula 1: Lactation Feed Formula 1 in Table 4-3 avoids as much as possible the use of bulky feeds such as alfalfa and rice hull bran. In the design of lactation feed formulas, unknown nutritional factors appear less important
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What are the compound additive formulas for omnivorous fish?
Carp and tilapia: Minerals or trace elements (mg): each gram of premix contains iron 50, copper 3, cobalt 0.01, manganese 20, zinc 30, iodine 0.1, selenium 0.01, the amount added to feed is 0.1. Vitamin mixture composition (mg): each gram of premix contains A 1000 IU, E 10 IU, K2 2, B1 4, B2 4, pantothenic acid 10, nicotinic acid 20, pyridoxine 4, folic acid 1, C 40, B12 0.004, biotin
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How are fish body disinfection solutions prepared? Introduction to common formulas
Soaking and disinfecting fish bodies with medicated solutions is an indispensable task when stocking fish fry and fingerlings, and is an effective measure for preventing fish diseases. Here are several common preparation and application methods for soaking disinfection solutions. 1. Bleaching powder solution: Prepare at a dosage of 1 gram of bleaching powder per 100 kg of clean water, that is, a bleaching powder solution with a concentration of 10 mg/kg. At a water temperature of 10-15°C, soak the fish for 15-30 minutes. It can kill various pathogenic bacteria on the fish body and has a good effect on preventing bacterial red-skin disease and rotten
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