How to identify adulterated pig feed
(1) observe with your eyes
Buy a magnifying glass with a larger magnifying glass. Sift the feed with a sieve, spread it into a thin layer, and carefully observe the material on and under the sieve with a magnifying glass. Some of these substances have the following characteristics under a magnifying glass.
1. Fishmeal the main ingredients of fishmeal are fish meat, fish bones, fish bones, fish scales, fish eyes, etc., and there should be no other substances. Under the magnifying glass are fish scales and fish eyes, the fish scales are covered with concentric circles, the fish bones on the head are flaky, the fish bones are tetrahedral, and the fish meat is made up of muscle fibers. 2. The edges of the blood powder particles are sharp and reddish brown, and the fragments of the black shell are usually tightly curled, smooth, with needle-like marks. You can also see a hard navel, oblong, yellow, brown or black. 3. Rapeseed cake (meal) the shell of rapeseed meal is brown or black, and the surface is fleshy. 4. Cottonseed cake (meal) the cotton shell has two layers, which are not separated; the outer shell is deep and shallow, and the outer shell is connected with cotton wool; there are many hairs, which are silvery under the microscope. 5. The bran is mainly wheat bran, which is flaky and contains many starch grains. 6. Bone powder is bone fragments, opaque, white, dull, rough and hard on the surface. 7. The shell powder is white or gray powder, and some shells have shallow lines.
(2) Identification by iodine and starch reaction
Buy a bottle of medical iodine. Put some of the raw materials, such as bean cakes or other cakes, on a clean white disk, spread them thin, and then drop a few drops of iodine on it and observe it after 1 minute. If some substances become blue-black, it means that they are mixed with fake. The more substances that change color, the more fake they will be. Because soybean meal does not contain starch, only starch turns blue when exposed to iodine. The common dopants in soybean meal are rice, wheat bran and rice husk.
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How to prevent porcine cold diarrhea in cold weather
Every year, due to the low temperature in the outdoor pig houses in the countryside, the pig body is attacked by strong cold air, coupled with eating and drinking cold water and cold food, cold evil goes straight to the stomach and intestines, which often makes some pigs weak in movement, cold and damp, clear and turbid, resulting in cold intestines diarrhea. The most common occurrence of this disease is in the weather from 49 to 59. The first reason is that the weather is the coldest in the year, and the second is that the Spring Festival has arrived, and every family usually feeds pigs with meat soup, resulting in more pig cold diarrhea. The local treatment is as follows: first strengthen the cold protection and heat preservation of the pig house, then stir-fry it into yellowish brown with white flour, and adjust it to a thin paste with warm water.
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Six ways to prevent chicken from wasting feed
1. Use full-price compound feed to improve the absorption and utilization rate of feed. It is undoubtedly the biggest and imperceptible waste to increase feed intake to make up for the incomplete nutritional composition of diet. feed must be prepared scientifically according to the physiological characteristics and growth and development of chickens (broilers and laying hens). 2. Feed crushing should not be too fine. Too fine feed is not only unsuitable for feeding, but also increases dust, resulting in a waste of feed. 3. Improve the trough to prevent feed waste. Provide food trough with reasonable structure according to chicken age.
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