Views: 186 Author: Site Editor Publish Time: 2022-03-09 Origin: Site
Veterinary drugs are widely used in the development of animal husbandry, mainly for the treatment of livestock and poultry diseases, and greatly reduce the morbidity and mortality of livestock and poultry, and at the same time improve the utilization rate of feed and promote the growth of livestock and poultry. The role is also very obvious, and it has become a commonly used input in the current aquaculture industry. The use of veterinary drugs reduces breeding losses caused by diseases and ensures the development of animal husbandry. However, in recent years, the problem of excessive residues of veterinary drugs has received extensive attention, and qualified livestock products have become the focus of food safety. So what are the hazards of veterinary drugs residues in livestock products? Let's take a look.
Here is the table of contents:
l Hazards to Consumer Health
l Effects on Induced Resistant Bacteria and Normal Gastrointestinal Microflora
l Impact on the environment and ecology
l Impact on Livestock and Animal Husbandry
1. General toxic reactions
Some drugs remaining in animal products can cause chronic or accumulated poisoning to the human body due to long-term ingestion by the human body. For example, the human body is more sensitive to chloramphenicol than animals, and infants and young children are more sensitive to chloramphenicol. Inhaling a large amount of chloramphenicol in the human body can cause severe aplastic anemia, and infants and young children will have fatal "grey baby syndrome"; tetracycline Such drugs can combine with calcium in the human body, thereby inhibiting the development of bones and teeth in the human body during the growth period; tylosin and erythromycin in macrolides are fat-soluble and alkaline drugs, which are used in human beings. The volume of distribution in the body is high, which is prone to accumulation and chronic poisoning, which can lead to hearing loss and dizziness; Clenbuterol hydrochloride, ractopamine "clenbuterol" can cause human heart tube disease.
2. Special toxic reaction, causing "three causes" effect
Because some drugs can damage human tissue cells, induce gene mutations, and have carcinogenic activity.
After the use of such drugs in the breeding process, they will accumulate in the residual animals and their products and will continue to accumulate in the human body after human consumption. When the accumulation reaches a certain dose, it will cause carcinogenic, teratogenic, and mutagenic. Such as sulfamethazine, chloramphenicol, malachite green, etc.
3. Developmental toxicity (hormone-like effects)
The effects of synthetic hormones on development are mainly hormonal substances, such as estrogenic substances that can make men feminized or androgen substances that make women masculine.
4. Allergies and anaphylaxis
The residues of veterinary injection such as penicillins, tetracyclines, and certain aminoglycosides have strong sensitization effects, mild cases can cause skin itching and urticaria, and severe allergic reactions can lead to acute angioedema and shock, even endangering life.
Long-term use of antibiotics will induce sensitive bacteria in nature to become drug-resistant bacteria. When a drug-resistant bacterial infection occurs, the human body will be difficult to treat when the disease occurs, and the treatment time will be prolonged or even treatment failure. The microbiota in the gastrointestinal tract of normal people is in a balanced state. If you eat animal products containing antibiotics for a long time, the sensitive bacteria in the body will be inhibited or killed, and other non-sensitive pathogenic bacteria will multiply, thus making the microecological balance in the human body damaged, the body will develop infectious diseases.
veterinary drugs will enter the ecological environment in the form of prototypes or metabolites with the urine and feces of livestock and poultry, polluting surface water, soil, and groundwater, and the resulting drug-resistant strains are still active in the natural environment. Direct or indirect effects on the environment.
Long-term abuse of veterinary drugs will reduce the immunity and disease resistance of livestock and poultry, increase the probability of disease infection, and also cause acute and chronic poisoning; long-term abuse of drugs will also cause bacterial resistance to continue to strengthen, and drug-resistant bacteria continue to increase. Increase, making it more and more difficult to treat bacterial diseases in humans. Livestock and poultry products will also fail to meet the quality standards due to excessive residues of veterinary tablets, which will reduce consumers' confidence in livestock and poultry products and affect the market competitiveness of enterprises.
The above is about the hazards of veterinary drugs residues in animal products. If you are interested in veterinary drugs, veterinary external medicine, veterinary oral solutions, you can contact us.
