Method for purifying avian leukosis of Rizhao partridge chickens

Abstract

The invention discloses a method for purifying avian leukosis of Rizhao partridge chickens, which relates to the technical field of poultry breeding and comprises the following steps of uniformly arranging specific light sources in a chicken house, and setting specific breeding density, regularly feeding vitamins, selecting a target purified breeding chicken flock, eliminating positive chickens to construct an F0 generation breeding flock, hatching eggs to generate an F1 generation breeding flock, respectively carrying out antigen detection at different times to remove positive chickens, carrying out height, body length and body height detection and screening, constructing an F1 generation breeding purified flock, and hatching eggs to generate an F2 generation breeding flock, and enabling the rest to be done in the same manner until the F4-F6 generation breeding purification population, and acquiring the purification population when the 300-day-old antigen detection reaches zero detection rate. According to the method provided by the invention, population purification of the avian leukosis can be completed, the capability of the population obtained through purification for resisting the infection risk of the foreign avian leukosis is remarkably improved, chickens are not easily infected with the avian leukosis, the morbidity after infection is low, and the death rate after attack is low.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for purifying Rizhao Ma chicken avian leukemia. Background technique [0002] Avian leukosis is a general designation of a variety of tumor diseases in poultry caused by viruses of the poultry C-type retrovirus group, and it is a second-class infectious disease. Mainly lymphocytic leukemia, followed by erythroblastic leukemia and myeloblastic leukemia. In addition, it can also cause myeloid cell tumors, connective tissue tumors, epithelial tumors, endothelial tumors, etc. Most tumors invade the hematopoietic system, and a few invade other tissues. Most strains of avian leukosis virus can grow well in 11-12-day-old chicken embryos, and can produce hyperplastic acne spots in the chorioallantoic membrane. Inoculation of susceptible chicks from 1 to 14 days old by intraperitoneal or other routes can cause disease in chickens. Most avian leukosis viruses can grow...

AI Technical Summary

Problems solved by technology

[0003] It is precisely because chickens of different breeds or strains have great differences in resistance to viral infection and tumor occurrence. Therefore, we found that the existing methods for purifying avian leukemia, including the method for purifying populations of avian leukemia specifically for chickens, are not effective for Rizhao Ma chickens. It is not as effective as described in the literature. Therefore, it is necessary to develop a method for purifying avian leukemia specifically for the Rizhao Ma chicken population