What about pig mold poisoning? Prevention and Control of Mycotoxin Poisoning (1)

According to incomplete statistics, there are hundreds of mycotoxins, all of which cause damage to pigs, but to varying degrees. Many of the damage caused by mycotoxins are not easy to detect, and some need to be dissected, causing farmers to pay less attention to mycotoxins than other infectious diseases. Since June, more than 20% of pig farms have serious mycotoxin exceeding the standard, and it is also found that more than half of the feed pig farms have not added mildew remover, so there are varying degrees of problems.

Mycotoxins in pig farms mainly appear in the following links: first, inferior corn, soybean meal, wheat bran, etc.; second, there are more mycotoxins in low-priced full-price materials; third, although full-price materials are treated at high temperature in the process of production, but the toxins can not be disposed of; fourth, the pig farm map is convenient, the feed is fed too much at one time, and the feed stays in the pig farm for too long, so it is easy to mildew twice and produce toxins. Fifth, there are always leftovers in the trough of pig farms, and the residual feed is easy to mildew and produce toxins in the environment of high temperature and humidity; sixth, there is no reasonable addition of mildew remover.

The mycotoxins that have great influence on pigs in feed are as follows: aflatoxin, zearalenone, TMel-2 toxin, ochratoxin and ergotoxine.

Aflatoxin poisoning: aflatoxin is mainly produced by Aspergillus flavus and parasitic Aspergillus. It is one of the most toxic mycotoxins, which can cause serious liver disease, reduce the resistance of fattening pigs, decrease the feed utilization rate, slow down the growth, appear jaundice, coagulopathy, mental depression and anorexia, and seriously cause poisoning and death of pigs. the reproductive rate decreased, the abortion and lactation of sows decreased, and caused immunosuppression, and the immune effect of the vaccine was greatly reduced.

Zearalenone poisoning: this is a toxin produced by gibberellin growing on corn and wheat, mainly affecting piglets aged 3 months to 5 months. Clinically, it can be seen that small and medium-sized sows and castrated sows have estrus-like symptoms: swollen labia, bright red labia, flushing vaginal mucosa, prolapse of uterus or anus, breast protuberance and decreased libido; premature delivery and abortion of pregnant sows; delayed or abnormal estrus of weaned sows; prolonged labor process of parturient sows and increased number of weak babies and stillbirths.

Tmur2 toxin poisoning: Tmur2 toxin is another toxin produced by Fusarium graminearum and is characterized by vomiting and diarrhea. Acute: often in half an hour after eating onset, lethargy, gait hobble, do not eat, vomiting, lip and nose skin inflammation, stomatitis, salivation, diarrhea, hemorrhagic enteritis. Chronic: loss of appetite, indigestion, growth retardation, anemia; decreased conception rate and birth rate of sows, miscarriage, premature delivery or stillbirth. Autopsy showed extensive bleeding and damage of internal organs, myocardial hemorrhage, hepatomegaly and splenomegaly.

Ochratoxin poisoning: this is a toxic disease in which the kidney and liver are damaged by mycotoxin. It is characterized by polyuria clinically. When the content of ochratoxin is 1 mg / kg and the feeding time is 3 months, it can cause diarrhea, frequent urination, anorexia and dehydration, growth retardation, low utilization rate and so on. Autopsy showed rubber kidney, extensive degeneration of liver and hard and brittle texture.

Ergot poisoning: symptoms can occur within days or weeks, including depression, loss of appetite, rapid heartbeat and breathing, poor physical condition, claudication, severe necrosis of the tail, ears and hooves and shedding of carrion.