At present, many pig farms have recognized the harm of mycotoxins. Some have experienced problems such as estrus, wigs, and miscarriage in sows. Some have seen symptoms such as redness and swelling of newborn piglets under the guidance of veterinarians; others feel it. Mycotoxin causes the pain of pig disease to be cured after the pig's resistance is reduced. It has also been heard that other people have learned the importance of the fungicide.
At present, the main impact on the pig industry is mainly the toxins produced by four fungi, aflatoxins produced by Aspergillus, ochratoxin, citrin, and Claviceps, mainly produced by Penicillium. ) produced ergot toxin (ergotine), vomiting toxin (DON) produced by Fusarium, zearalenone (F-2), T-2 toxin, fumagillin (fumonisin-Fumonisi-no) Etc., among which aflatoxin, zearalenone, T-2 toxin, vomiting toxin, ochratoxin, ergot toxin, etc. are more harmful to the herd.
The therapeutic effect of porcine mycotoxin poisoning is often unsatisfactory. It is the most economical way to prevent pig mycotoxin poisoning by taking effective measures. However, there are many kinds of anti-mold agents on the market, the quality is not good, and the price is also from a few dollars to more than one kilogram. The pig farm owner who has not studied in the aspect of mold remover is very troublesome. How to choose a cost-effective one? Mildew is imminent for them.
In solving the problem of mycotoxins, we must first control the moisture of feed and raw materials , strengthen storage management, and try to purchase fresh raw materials with good quality and low moisture content. Intensify inspection when purchasing raw materials to prevent moldy and deteriorated raw materials from entering the warehouse. Generally, the moisture in corn, sorghum and rice should not exceed 14%. For high water content, it should be aired in time. Pay attention to the control of air, humidity, temperature, etc. The warehouse for storing feed and raw materials should be dry and well ventilated, avoiding being piled up in dark and humid places to prevent mildew. The bottom of the warehouse should be protected from moisture and water. Feed and raw materials should be stacked on a wooden stand. There should be a gap above the storage warehouse for air circulation. Shorten the storage time of finished feed and raw materials, strictly follow the principle of “first in, first outâ€, and clean up contaminated raw materials in time.
Since many raw materials such as corn are generally infected with mold in the ground, the mold will multiply in different stages during the storage of the feed, resulting in more serious mildew. One way to solve this problem is to add acid preparations such as formic acid, propionic acid, sorbic acid and other acidifying agents to the feed, which can destroy the function of the mold, hinder the metabolism of the mold, and reduce the Aspergillus flavus, Aspergillus oryzae, Aspergillus fumigatus, gibberellone, etc. The toxic side effects of various molds.
The second measure is the addition of adsorbents , which is also the most important measure. The quality of the adsorbent is the main factor in the current price of the mold remover. Nano-sized montmorillonite with high fineness of adsorbent has strong adsorption capacity, but can only adsorb strong aflatoxins and zearalenone and other mycotoxins, and adsorbs vitamins in feed. Some manufacturers of fungicides add yeast cell wall components. The yeast cell wall extract is a product rich in β-glucan and mannooligosaccharides extracted by enzymatic cleavage of the yeast cell wall. Glucan and mannooligosaccharides have high affinity with organic mycotoxins, and can be adsorbed by intermolecular van der Waals force or directly combined with mycotoxins, but does not affect other nutrients in the feed. At the same time, some studies have found that mannooligosaccharides have high binding rates for aflatoxin, zearalenone, ochratoxin and the like. Mannan oligosaccharides can also stimulate immune cells in pigs and improve the immunity of the body caused by mycotoxin poisoning.
The third method is the enzyme preparation degradation method . The use of high-activity probiotics, active Saccharomyces cerevisiae, Bacillus subtilis increases the number of beneficial bacteria in livestock and poultry, reduces the living space of harmful molds, and degrades its toxicity with enzyme preparations.
Some manufacturers also use some of the traditional Chinese medicine to protect the liver and biliary, to make mold remover, and hope to enhance the liver detoxification ability or the liver and kidney damage caused by mycotoxins. However, the mycotoxin is relatively stable and is not easily destroyed. The effect of enhancing the detoxification ability on mycotoxins cannot be determined.
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