Snake bite antidote of the immune system
New research suggests that immune cells called mast cells help protect mice from certain snakebites and stings. Although the role of mast cells in helping to produce symptoms of anaphylactic shock, asthma and allergies is most clear, scientists also recognize that these cells play other auxiliary roles in the immune system in dealing with infection. The venom of many insects and reptiles contains chemicals that activate mast cells, so researchers generally believe that the role of mast cells is to worsen the harm of poisonous snake bites or insect stings. But a new study by MartinMetz and colleagues shows that venom from snakes and bees is more harmful to mice that lack mast cells than normal mice. Experiments with the venom of Israeli rat venom suggest that mast cells provide protection by releasing carboxypeptidase A, which degrades a dangerous component of the venom, which puts forward a possible new direction for detoxification research. Snake bites contain different amounts of venom, and mast cells have the greatest effect on venoms that are below or close to lethal amounts, said StephenGalli, the article's newsletter author.
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Selection and selection of white raccoon dog
At present, the coat color of the white raccoon dog type in China has been very stable, that is, the part of the white hair is white regardless of the needle hair and the villi are all white, and there is no other miscellaneous color (such as the needle hair is white and the villi is not white or part of the body is not white, etc.). Therefore, the selection of white raccoon dogs should focus on coat color, fur quality and body shape, especially male raccoon dogs. The selection of white raccoon dogs should be mated with wild-type raccoon dogs, but not among white raccoon dogs. White raccoon dogs generally have the disadvantage of thick and long needle hair, and the selected wild raccoon dogs had better have short and dense needle hair in order to correct the shortcomings of white raccoon dogs.
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Feed the rabbit "Sanbao" in spring and summer
Garlic, tangerine peel and chili are commonly used seasonings in family dishes, which are called "kitchen three treasures". Because they contain a variety of nutrients, non-toxic and no side effects, they are not easy to cause harmful residues in animal products, and also have the role of epidemic prevention and treatment. so it is also known as the three treasures of pure natural agriculture and forestry culture. In recent years, the author used Sanbao in rabbit production and achieved good results. First, it can increase the appetite of rabbits. Adding appropriate amount of garlic powder, tangerine peel powder and chilli powder to the feed can cover up the bad smell of some feed ingredients, increase the flavor and improve the feed.
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