-
What polypeptide antibiotic drugs are commonly used in geese
Colistin source and properties: This product is extracted from the culture fluid of Bacillus polymyxa. It has five components, A, B, C, D, and E, belongs to the polypeptide compounds, and has similar basic chemical structures. In clinical application, colistin B and E are mainly used. Its sulfate is a white or light yellow powder, easily soluble in water. Action and uses: This product has a strong antibacterial effect on Gram-negative bacteria, inhibiting bacteria at low concentrations and killing bacteria at high concentrations. It is mainly highly effective against Escherichia coli, Salmonella, Shigella, Pseudomonas aeruginosa, Pasteurella, and others
-
Detailed Explanation of Lincosamide Antibiotics Commonly Used in Geese
Source and properties: This product is extracted from the culture broth of a Streptomyces variant. It is a white crystalline powder, alkaline, bitter in taste, and soluble in water. Its hydrochloride salt is easily soluble in water. Both the aqueous solution and the dry product are relatively stable. Actions and uses: The antibacterial action of this product is similar to that of erythromycin, but its antibacterial spectrum is narrower than that of erythromycin. It has strong antibacterial action against most Gram-positive bacteria such as Staphylococcus aureus, Streptococcus, Clostridium welchii, etc., and also has a significant effect on mycoplasma. Clinically, it is mainly used to treat mycoplasmosis, necrotic enteritis, staphylococcosis
-
Why does the pigpen fermentation bed have an anti-disease function?
The biggest fear in pig farming is that the pigs get sick. No matter how good a pig is, once it gets sick, you are sure to lose money. Raising pigs on a pigpen fermentation bed has an anti-disease function and allows the pigs to grow healthily in a sterile environment. The pigpen is bedded with sawdust and wood shavings to make a fermentation bed; it is warm in winter and cool in summer, safe and hygienic so the pigs do not get sick, and they also gain weight quickly. After Jinbaobei fermentation starter, wood shavings and soil are mixed in a certain ratio, a certain amount of activator and salt are added, and if conditions permit a small amount of rice bran, distillers' grains, etc. can also be added, so that the moisture content reaches 60%, to ensure that the functional microbial strains can multiply in large numbers, after
-
Detailed Explanation of the Patterns of Change in Porcine Circovirus Type 2 Antibodies
Porcine circovirus antibodies show a certain stage-based pattern, with two peaks. One occurs at 1 to 2 weeks of age and consists of maternal antibodies acquired from the mother; the other occurs at 8 to 10 weeks of age and is caused by circovirus infection. Then, in the older pig stage, antibody levels drop to undetectable, which also indicates that infection with the virus at this stage is relatively mild. Porcine circovirus infection is very harmful to pigs. The period when the health level of the herd is relatively low coincides in time with porcine circovirus infection, which provides a theoretical basis for us regarding immune failure, severe secondary infections,
-
Antidote to snakebite hidden in the immune system
New research suggests that immune cells called mast cells help protect mice from certain snakebites and bee stings. Although mast cells are best known for their role in helping produce the symptoms of anaphylactic shock, asthma and allergies, scientists also recognize other supporting roles these cells play in the immune system's fight against infection. The venom of many insects and reptiles contains chemicals that can activate mast cells, so researchers generally believed that mast cells' role was to worsen the harm of snakebites or insect stings.
-
Introduction to Amprolium Hydrochloride (Amprol), a Commonly Used Antiparasitic Drug in Ducks
Source and properties: This product is a white or off-white powder. It is odorless, easily soluble in water, and relatively stable in nature, making it suitable for combining with other ingredients such as antibiotics, vitamins, and minerals, and for adding to poultry diets. Actions and uses: Amprolium is an anticoccidial drug launched in the 1960s. This product is highly effective, safe, and not prone to inducing drug resistance, and it is still widely used today. The structure of this product is similar to thiamine, so it can inhibit the thiamine metabolism of coccidia and thereby exert an anticoccidial effect. This product can not only inhibit the growth
-
Study on Immunization Methods against Swine Trichinellosis and Biochemical Characteristics of Trichinella Antigens
1. Biochemical characteristics of Trichinella antigens: For the first time, advanced techniques including sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), isoelectric focusing (IEF), two-dimensional electrophoresis and enzyme-linked immunoelectrotransfer blot (EITB) were applied to analyze 4 types of Trichinella antigens. The analysis showed that the soluble antigen of muscle larvae contains at least glycoproteins, lipoproteins, glycolipoproteins, simple proteins, polysaccharides and esterase isozymes. Two-dimensional electrophoresis revealed 122 polypeptide spots, most of which were acidic polypeptides with molecular weights below 67 KD.
-
Quarantine Methods and Handling Measures for Swine Toxoplasmosis
Swine toxoplasmosis is a zoonotic infectious disease caused by Toxoplasma gondii. This disease is most commonly seen in pigs. Humans can contract the disease through wound contact or by eating raw meat infected with this disease. Therefore, carrying out ante-mortem quarantine and post-mortem inspection for swine toxoplasmosis at designated slaughterhouses is of vital importance for safeguarding the development of the breeding industry and human health. 1 Ante-mortem quarantine: Pigs suffering from swine toxoplasmosis show an elevated body temperature reaching 41-42°C, reduced or complete loss of appetite, runny nose, coughing or difficulty breathing, anemia, and conjunctival hyperemia.
-
Key points of grass-growing sheep farming: pasture planting and feeding management methods
Grass-growing sheep farming techniques
-
Which forage grass varieties are suitable for planting for sheep raising?
What forage grass is good to plant for sheep raising?
条件筛选