Foreign feed rookies appear frequently

Introduction: with the development of animal husbandry and feed industry, foreign food science and technology personnel have increased their investment in feed research, and various new feed products and technologies have been emerging, which has opened up a new way to accelerate the development of new fields in feed industry In order to seek new feed resources for livestock and poultry, in recent years, Russia has made great efforts to develop and use nettle as green and dry feed They use the green nettle branches and leaves to feed poultry directly, and at the same time, they make silage and dry broken feed for preservation and use as poultry feed According to the determination, the content of carotene 140-300 mg, vitamin cl000-2000 mg, vitamin E20 mg, vitamin K25 mg, Fe, Mn, Cu, Zn, tannin, organic acid and other active substances and minerals were found in the leaves and shoots of Urtica The laying rate of laying hens fed with nettle increased by 18% - 25%, and the disease rate of young animals also decreased significantly In order to improve the weight gain of Broilers and the laying rate of laying hens, Russian researchers, after years of research and experiments, added a certain amount of gravel to the chicken feed, and achieved remarkable results They choose the granite gravel which is not easy to dissolve to feed the chicken, so as to effectively improve the ability of the chicken's muscle stomach to grind the feed, slow down the passing speed of food in the chicken's gastrointestinal tract, make the digestive fluid more easily enter the stomach, promote the better absorption of nutrients, thus improving the weight gain of the broiler and the laying rate of the layer In recent years, Japan has successfully made high protein feed from waste animal hair Animal hair is composed of keratin, which is difficult to digest and absorb for any livestock Therefore, animal hair is treated as waste Now, Japan's Dongguan animal product processing research institute can process these waste animal hair into high protein feed It is to add 30% water to the washed animal hair in a pressure kettle, cook it for 1 hour under 2.5kg pressure and 230 ℃ temperature, take it out from the kettle after cooling, and then get a paste of hydrolyzed protein Since keratin has been decomposed into various amino acids under high temperature and pressure, the absorption rate of effective amino acids in animals can reach 75% - 94% Adding the "protein paste" to the common feed to feed livestock can fully meet the needs of feed protein The Japan Fisheries Research Center also uses seaweed to make aquaculture feed, turning waste into treasure The production method of the new feed is: adding cellulase, Lactobacillus and yeast to the seaweed salvaged from the sea to ferment in the fermentation tank After about 24 hours, seaweed can be broken down into cell size particles, such as marine plankton, which can be used as feed for young fish and shellfish in farms This process is carried out without oxygen, so the oxygen supply equipment and stirring device are saved, and the cost is reduced In order to improve the quality of livestock and poultry products, a Japanese food company also mixed nutmeg, pepper, dried pepper, clove and ginger into the feed to feed broilers, so that their meat and chicken can be kept fresh for a longer time, and most consumers prefer its taste Not long ago, a Biochemical Institute in the United States developed a new technology to produce feed protein from natural gas The technology is divided into two steps: the first step is to convert natural gas into methanol; the second step is to use a kind of cultured yeast to synthesize single cell protein with methanol in a culture vessel The newly produced feed protein is similar to the common colloidal protein This technology has opened up a new way to find a large number of feed protein resources for livestock and poultry breeding Recently, U.S researchers have also developed pig feed to reduce the odor of feces, using artificial amino acid feed to pigs, which can reduce the odor of pig emissions Because ammonia is the main substance that produces peculiar smell in pig excreta, which is produced by the decomposition of nitrogen compounds such as protein by microorganisms during the process of pig digestion If synthetic amino acids are used for feeding, the content of excess amino acids in pigs will be greatly reduced If the content of natural feed is reduced by 14% - 18%, and the content of ammonia in the excreta is increased, the content of ammonia will be reduced by 30% - 50%, and the growth of pigs will not be affected Australia has developed a new type of synthetic feed for the abundant bird excrement resources in the surrounding islands According to the determination, these bird droppings contain a large number of nutrients and physiological active substances which have been digested but not absorbed It is a good feed and additive raw material The preparation method is to dry the black manure at low temperature to retain the active substances and some enzymes, remove the odor and peculiar smell, add a small amount of dry yeast, grain, straw powder and microelements after grinding, stir them to make particles or other shapes, add this feed to feed the young cattle, with a daily gain of 1.5-2.1kg; use it to feed the cows, the milk yield is more than 12% higher than the control group Recently, Finnish researchers have developed a feed that can increase the vitamin D content of eggs The vitamin D content of this feed is 3.5 times of that of the general feed The hens fed this feed can produce 7 times more vitamin D than that of the general eggs, making considerable benefits In order to meet the market demand for low fat and high nutrition milk, Brazilian researchers have recently developed a new type of feed, which can make cows produce natural milk with low fat and high protein This new type of cow feed contains cla This kind of substance secreted naturally and contained in milk can regulate the two enzymes of fat production in cow body In order to solve the problem of adding CLA into feed without damaging the digestive system of dairy cattle, CLA molecules and calcium salt can be mixed into feed CLA has the function of preventing animal and human from cancer and new blood vessel disease The content of CLA in the milk of cow fed with CLA additive is 5 times higher than that of ordinary milk (author:) share to feed Weibo share to: