4 results about "Pullorum disease" patented technology

This invention discloses an SV molecular marker closely associated with the anti-infection phenotype of Salmonella pullorum and its application, belonging to the field of molecular breeding technology. This invention provides an SV molecular marker closely associated with the anti-infection phenotype of Salmonella pullorum. Homozygous Salmonella pullorum susceptible individuals are more resistant than homozygous Salmonella pullorum susceptible individuals, with a 324bp difference shown in SEQ ID NO.1. It also provides a pair of primers for amplifying the SV marker, with sequences shown in SEQ ID NO.2 and SEQ ID NO.3. Using the provided molecular marker and primers, individuals with high resistance to Salmonella pullorum can be identified or selected at an early stage. The detection results are not affected by factors such as the sex, living habits, and environment of the chickens, which can effectively shorten the breeding process, reduce the breeding workload, and improve the stability and reliability of the results. This is of great significance for reducing the economic losses of farmers caused by Salmonella pullorum infection.

The invention relates to the technical field of feed additives, in particular to a traditional Chinese medicine extract feed additive for treating pullorum disease and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 10-15 parts of radix scutellariae, 6-9 parts of rhizoma coptidis, 4-6 parts of fried radix sanguisorbae, 3-5 parts of herba portulacae, 2-3 parts of horseradish tree leaves, 1-2 parts of fructus aurantii immaturus and 1-2 parts of pouzolzia zeylanica. The invention also provides a preparation method of the feed additive, and the prepared feed additive can effectively treat pullorum disease.

The invention discloses lactobacillus johnsonii for preventing and treating pullorum disease salmonellosis and application of the lactobacillus johnsonii, and belongs to the field of microorganisms. According to the invention, a strain of Lactobacillus johnsonii LMZ8 is separated and screened, and the preservation number of the strain of Lactobacillus johnsonii LMZ8 is GDMCC No: 66614. The lactobacillus johnsonii LMZ8 is good in acid resistance and has certain tolerance to high-concentration cholate. Experimental results show that the lactobacillus johnsonii LMZ8 can effectively inhibit the growth of various pathogenic bacteria such as salmonella typhimurium and salmonella enteritidis, especially has a prominent inhibition effect on five strains of multi-drug-resistant salmonella pullorum with no same drug resistance spectrum, can effectively prevent and treat the pullorum disease caused by salmonella pullorum, and improves the growth performance of chicks. The lactobacillus johnsonii LMZ8 shows remarkable development potential in the aspects of preventing and controlling food-borne pathogenic bacteria and preventing and treating diseases such as pullorum disease, and has a wide development prospect.

The utility model relates to the technical field of veterinary detection equipment, and discloses pullorum disease detection equipment which comprises a box body, a waste barrel placing cabin, a power supply placing cabin, a storage cabin and an LED full-spectrum lamp, and self-locking moving wheels are rotationally connected to four corners of the bottom end of the box body. According to the pullorum disease detection equipment, flexible movement in the chicken house is realized through the self-locking moving wheels, a sandwich structure of the double-layer acrylic plate and the adjustable constant-temperature heating rod ensures that the reaction temperature is stabilized at 20-25 DEG C, and the LED full-spectrum lamp and the white-bottom glass plate are matched to simulate a natural light environment, so that the color development contrast and the judgment accuracy of antigen-antibody reaction are remarkably improved. The waste barrel and the power supply are arranged in a subdivision mode to avoid cross contamination, and a closed cleaning system formed by the guide pipe and the suction ball can achieve boiling water disinfection and waste liquid safe recovery. The linkage design of the auxiliary pulley and the rotating strip simplifies the replacement process of the waste barrel, and the sealed cabin door of the storage cabin guarantees clean storage of consumables. And a rubber plug arranged at the electrolyte notch realizes quick supply and leakage prevention.