-
How is poultry feed intake calculated? A summary of calculation formulas
817 crossbred broiler: starting from the first day, increase by 2.5 grams per day. That is, the feed intake of 1000 817 crossbred broilers at 35 days of age is: 2.5g x 35d x 1000 birds ÷ 500 grams = ...
-
How to feed silkworms well in summer and autumn? All the nutritional formulas are here
The main feed for silkworms is mulberry leaves. Because the quality of mulberry leaves varies greatly from season to season, it has a considerable impact on cocoon yield and quality. If nutritional supplements are fed to summer and autumn silkworms, the yield can be increased by 10%-20%. The formula techniques are introduced as follows: 1. Additive formulas and feeding methods. (1) Glucose solution additive. During the silkworm rearing period, if there is continuous rainy weather, the mulberry leaves are tender in texture due to insufficient sunlight, high in moisture content, and low in carbohydrates. At this time, a 5% glucose solution can be sprayed on the harvested mulberry leaves, and after they are air-dried, they can be fed to the silkworms, which can
-
Detailed Introduction to Common Fish Feed Formulas
1. Carp feed formula. ① Wheat bran 43%, fishmeal 30%, soybean cake 15%, barley 10%, additives 2%. ② Soybean cake 50%, fishmeal 15%, wheat bran 15%, rice bran 15%, vitamins 1%, inorganic salts 1%, antibiotics, scraps 1%, binder 2%. 2. Grass carp feed formula. ① Rice bran 40%, wheat bran 38%, soybean cake 10%, fishmeal 10%, yeast powder 2%. ② Cornmeal 70%, fishmeal 10%, soybean cake meal 15%, wheat bran 5%. On this basis, additionally add (
-
Feed Formulas and Scientific Preparation Methods for Lactating Sows
Lactating sows need large amounts of nutrients to support lactation. During peak lactation, the sow's milking capacity exceeds the nutrients she takes in through feed and exceeds the nutrients excreted in milk, so her body condition declines rapidly. Preparing 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 to be less
-
How to mix nutritional formulas for silkworms in summer and autumn
The main feed for silkworms is mulberry leaves. Since the quality of mulberry leaves varies greatly between seasons, it has a considerable impact on cocoon yield and quality. If nutritional supplements are fed to silkworms raised in summer and autumn, the yield can increase by 10%-20%. The formula techniques are introduced as follows: 1. Supplement formulas and feeding methods. 1. Glucose solution additive. During the silkworm rearing period, if there is continuous rainy weather, the mulberry leaves are tender in texture due to insufficient sunlight, have a high moisture content, and lower carbohydrates. At this time, a 5% glucose solution can be sprayed on the harvested mulberry leaves. After
-
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
-
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
-
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%
-
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
-
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
条件筛选