How to prevent and cure "white nose" disease

"White nose" disease, before this, should have never heard of. You go home to find books or go to the Internet to find information, there is no such thing as "white nose disease". However, after listening to my explanation, you go home to look up your existing books, you can find some symptoms of "white nose disease".

What is white nose disease "white nose disease" is the most typical in Northeast China since 2001. At the beginning, the villagers in the northeast found that the nose of foxes, minks and minks slowly appeared red dots from black, and then the area gradually expanded, followed by white spots, and finally, the nose turned white one by one. Then it was found that the claws gradually grew and became white, and the foot mats also became white and thickened. I began to think that if the nose, claws and foot pads turn white, it will not affect the sale of skin anyway. However, it was later found that some animals with white nose heads, claws and foot pads gradually shrank back, and some of the forearms of the forefeet gradually lost hair and dandruff, making it difficult to support the body. It is found that the survival rate of offspring is very low, and the production performance is very poor. As a result, "white nose disease" gradually spread. "White nose disease" is just a nickname. Due to the short time of discovery, we are still in the process of continuous research, and the real "big name" of this disease has not yet been determined, so I have to follow the name "white nose" to get sick.

After the cause of white nose disease occurred, we did not know what it was at that time, and the effect of treating it as a bacterial disease was not good; the effect of treating it as a parasitic disease was still not good. Finally, combined with the actual use of feed in production, we found a way to treat it from the point of view of nutrition, and achieved good results. Therefore, we initially determined that the disease was caused by a long-term imbalance in the feed for our fur animals. According to this way of treatment, the long-term observation from the end of 2001 to 2003 shows that the effect is very good. It also verifies that our judgment is correct. The disease, which has now been established, has launched a formal research process. I believe that in the near future, the truth of the matter will soon emerge. Through the experience in actual production, we should solve the current problems in production from the perspective of nutritional balance. So far, studies have found that "white nose" disease is actually a comprehensive nutritional metabolic disorder caused by the imbalance of nutrition and metabolism. it is mainly caused by the lack or proportion imbalance of many vitamins, minerals and amino acids in production.

The clinical manifestation of white nose disease in production, "white nose" disease has the following several manifestations: nose whitening: nose from black or brown gradually appear red spot-erythema-white spot-white spot; B. The pads are white, thickened, cracked, painful, and have individual ulcers. The claws are long and white: some individual claws are very long, some are white, and some are all white. There is also a very special performance-dry claws, some villagers call "dry claw disease". The claws are dry and fleshless; dark in color, crimson or dark red; produce a lot of dandruff and constantly fall off; difficult to stand upright.

The reproductive performance of "white nose" disease

Mismatch caused by a large proportion of estrus is not obvious: foxes and foxes, in particular, are in estrus once a year. When it is time for estrus, we never see the obvious symptoms of estrus, until after the estrus, there is no obvious estrus. Mismatch caused by this situation, and the proportion of this situation is larger. b. The embryo is absorbed and calcified: matched with the seed, watching the mother's belly get bigger day by day. However, after a period of time, it was found that the stomach did not grow, but gradually shrunk, and finally, the embryo was absorbed and calcified. c. A large proportion of miscarriages and stillbirths: there are many causes of miscarriages and stillbirths, and white nose disease can also cause a large proportion of miscarriages and stillbirths. d. Abnormal birth: the babies are red and white, pink and white, but they begin to die one after another from two or three days after delivery, and all die gradually after giving birth to more than 20 days after delivery. Even if a very small number of individuals survive, they are small and rickets. This year, if we encounter such a situation again, we should deal with it as soon as possible. "White nose" disease in production, there is a very special manifestation, all the previous symptoms are not, the beginning of the growth is also very good, after growing to a certain extent (usually before the growth period of winter hair in the later stage of growth and development), it does not go to the big director, and to the small director, that is, the growth shrinks back. In Guhe, a villager told me that his razor used to be 23 jin, but when I went there, it was only 3 jin. In Jianggezhuang, in November, I also saw a large number of razors with a size of only 7 or 8 jin.

Some farmers asked me, "Why do we still have this disease after the feed is better than before, but we don't have white nose disease?" Here's the reason. The quality of the feed we are talking about is only for the protein in the feed, while the quantity of other vitamins, minerals and amino acids does not increase with the increase of the amount of protein. The more eggs and fishmeal you add, the better you think this feed is; on the contrary, the less eggs and fishmeal you add, the worse it is. Originally, when there was less protein in the feed, the proportion of various nutrients was more appropriate, but now, due to the increase in the supply of protein, this relative balance has been destroyed even more, just like the proportion of calcium and phosphorus I mentioned earlier. Originally, calcium is high, but it is still replenishing calcium, so the more supplement, the more paralyzed.

White nose disease is still quite common in aquaculture, and sometimes it is easy for farmers to ignore it. It is very necessary to prevent and treat the disease in the process of breeding, which is also the best way to increase the production and control cost.