Foshan Standard Bio-Tech Co., Ltd. published papers about Immune effect of a precocious line of Eimeria necatrix with different doses and at different immunization times on the SCI journals Tropical Biomedicine
The author/rui-qing Lin, ya-biao weng
Recently, Foshan Standard Bio-Tech Co., Ltd. published research papers about “Immune effects of a precocious line of Eimeria necatrix with different doses and at different immunization times” on Tropical Biomedicine, which belong to the SCI journals in the field of parasitology.
This study was designed to assess the immune protective effects of the vaccine strain of a precocious line of Eimeria necatrix with different doses and at different immunization times. The immunizations had a negative effect on weight gains of chickens to a certain degree but could be compensated during the “compensatory growth period” after immunity was established in the chicken. The number of oocysts excreted was positively correlated with the immunization dose. All the immunized chickens, whether they were immunized once or twice or immunized with different doses of sporulated oocysts, were able to resist attack from 1×105 virulent sporulated oocysts of E.necatrix. The lesion scoring showed that no significant difference existed in the chicken groups immunized with different doses(300 and 600) of sporulated oocysts. However, a differnce existed in the immune homogeneity established in the different immunize groups, and two artificial immunizations were superior to one artificial immunization, indicating that two could extend the duration of oocyst excretion and allow more chance for the immunized chickens to become repeatedly infected.
Foshan Standard Bio-Tech Co., Ltd. had done a mass of work and made important progress in the product R&D, the immune mechanism and clinical application technology of the SCOCVAC®. The SCOCVAC® and its supporting technology made great contribution to the clinical prevention and control in the chicken coccidiosis. The products are widely used in domestic and has entered the international market. We are developing the coccidiosis vaccines of the rabbits and the pigs, the relevant results will be published in international or domestic famous journals, which will further improve the company influence at domestic and overseas.
The article link:http://www.msptm.org/files/Vol33-No03/570-576-Ya-Biao-Weng.pdf