Detailed Explanation of Key Points for Pollution-Free Beef Cattle Farming Technology
In order to ensure that beef contains no residues of chemical fertilizers, pesticides, hormones, antibiotics, veterinary drugs, chemically synthesized substances and other harmful substances to human health, beef cattle farming must be managed and produced in accordance with the relevant requirements of the operating procedures for green food production.
????I. Cattle Farm Environment
1. The terrain should be flat, sheltered from the wind, sunny and dry. The cattle farm site should be above the local historical highest flood line, and the groundwater level should be below 2 m.
2. Water quality must comply with the "Hygienic Standard for Drinking Water", with sufficient water volume, preferably deep groundwater.
3. The cattle shed site should be open and neat, with convenient transportation, and maintain a sanitary distance of more than 500 m from major highway trunk lines.
4. The cattle shed should maintain suitable temperature, humidity, airflow, light and fresh clean air. Toxic insecticides, sterilants and preservatives are prohibited.
5. Cattle farm sewage and waste discharge must meet treatment standards.
II. Beef Cattle Selection and Mating
Most of the beef cattle currently raised in China are crossbred offspring of introduced breeds such as Simmental and Charolais with domestic yellow cattle. Beef cattle breeds with fast growth speed, strong disease resistance and adaptability to local growing conditions should be selected for raising, and frozen semen from excellent bulls should be introduced for mating in combination with breeding. Beef cattle purchased from outside the farm must undergo strict quarantine and disinfection.
III. Feed Formulation
Green beef cattle farming should scientifically and reasonably formulate feed according to the nutritional needs of different developmental stages. Feed is the indirect food of humans, and toxic and harmful substances in feed will directly endanger human health. More and more studies have found that common human cancers, deformities, drug resistance and certain poisoning phenomena are related to residues of antibiotics, hormones and other synthetic drugs in meat, eggs and milk. Because excessive use of chemical fertilizers and pesticides will lead to higher residues of chemical fertilizers and pesticides in forage raw materials, which in turn leads to increased drug residues in beef, feed raw materials for green farming must come from pastures and planting bases within pollution-free areas.
????IV. Additives
Medicated additives once brought great benefits to the livestock industry, but with the development of the times, the side effects they cause have become increasingly obvious. Antibiotics at low therapeutic doses used as additives, while eliminating pathogenic bacteria, also eliminate microorganisms beneficial to the body, causing imbalance of the body's flora; long-term feeding can also produce drug resistance and leave residues in livestock products, causing adverse effects on public health and directly threatening human health and safety. Therefore, the use of feed additives must comply with the guidelines for the use of feed additives in the production of green food. Abuse of antibiotic additives such as excessive addition, failure to comply with withdrawal period requirements, or illegal use such as hypnotic sedatives, hormones or hormone-like substances will lead to excessive residues of such drugs in beef. Therefore, the production of green beef should try to use new biological preparations that can replace antibiotics and growth-promoting hormones, such as probiotics, acidifiers, enzyme preparations, Chinese herbal medicines, oligosaccharides, phospholipids, humic acid and other pure natural substances, or low-toxicity residue-free veterinary drug additives to replace antibiotic additives. Even if antibiotics must be used in production, antibiotic growth promoters should be used reasonably. First, animal-specific antibiotics with higher safety and no drug residues should be selected, while drugs prone to producing drug resistance should be avoided; second, the method of use should be correct and reasonable, must be evenly mixed with feed, and strictly implement regulations such as addition standards and withdrawal periods to reduce drug residues and drug resistance. The use of prohibited medicated additives is strictly forbidden, and various hormones, antibiotics, chemically synthesized growth promoters, chemical preservatives and other substances harmful to human health must be strictly controlled from entering milk to ensure product quality. Yuan Xingwu