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SPF vaccine in poultry production Application Effect


The number of the parent system into the age of 6 weeks into the chicken house, then the number of chicks survived several f2O week survival rate of survival live female Yucheng Ji June 1988 (only) (only) (Only )()() rate on behalf of the FI system when 17'000889l567252 species .363.8 【Total chicken to ask l44OO1410O9898 15,000 for a June 1989 test only a few positive pathogens suspected only a few positive rate of only a few infected prison in June 1989 (%) when the La test SP512821.50 ¨ Yuan period (22 weeks age) MG5122544.883. Zibo, Shandong Province,[link widoczny dla zalogowanych], raising the scale of egg products plant} 2O million varieties: Haisaikesi parents on behalf of the breeder and commodities on behalf of the field from January 1988 to start using SPF series of vaccines, immunization of species flocks. MD, ND incidence rate was significantly lower than in previous years, the survival rate of chicks and adult chickens were ~ 1987 years ago the survival rate has significantly increased, pullorum, septic mycoplasma, Mycoplasma synoviae positive detection rate than in previous years have a different extent. Total profit in 1988 compared with base year of 1987 increased 48 million. Table 3: Table 3 egg products plant in Zibo, Shandong SPF vaccine investigation into the care system analogy chicken passage number 6 the number of peers survival survival rate of chick survival Yucheng Ji 2O survival rate of the same age (its) (only )(%)()( .) Rate of chicken dollars in December 1987 when the ax 20000167001486083589 asked in January 1989 20000lB400l7B609296. The positive rate of pathogen detection efficiency is only a few suspect only a few positive only (%) l2 months in quarantine iI1987 SP5560478/8.6 Ⅱ: I test (42 weeks) MG20414/8.9MS2O4/2I · when a Yun,[link widoczny dla zalogowanych], 1989 1 May SP553827/0.4g 'MG2 mouth between Bute 03/1.5_ (4oN age) MS200 / 0 (turn 20 next) f, mouth ear flaps add a distiller producing potassium feed of laying hens Zhang Yi Zhuang County Grain Bureau of Penglai Laboratory Introduction. S content with the animal feed industry and the rapid growth of Xinjiang, feed raw grain was tight growing trend, which directly affect the development of animal husbandry closure, in order to broaden the sources of feed, lower feed costs, improve economic efficiency, we conducted Add egg production and feed fermentation lees test of laying hens fed a fermentation lees Preparation: Through screening, training, preparation of fermentation agent, has steamed Penglai wine just sprinkle the end of plant food lees (the main raw material for wine wheat, bran, sorghum, rice husk) back in time, mix starter, placed in fermentation tanks fermentation, drying thousand made. (Continued from page 19) IV. Conclusions from the oil taken from the project ● ● ● Nam Nam on breast self} 1. SPF vaccine successful development of poultry vaccines in China into a new international standard, the SPF chicken embryos without maternal antibody interference, speed of vaccine virus more complex decision big ship, the virus titer of the vaccine than split Meng was General hydroxyl Arrow | sin cancer with SPF chicken embryos to produce Newcastle disease vaccine, Department of I and Ⅳ in the chicken embryo allantoic fluid virus titer can be stabilized at 10EID50 on higher than normal 5-1O-fold embryo. Agglutination titer (HA), SPF vaccine up to 1024 times, while the S & P 180 times the distance of only blank seedlings. Made of SPF chicken embryo cells, leukemia, non-interference allows for a large number of Marek virus replication, cell lesions seen the same, PFU chicken embryo cells than normal number of high a0N so, fowlpox, bursa significant amount of toxic increased effect of promoting the use of phthalate _ look, SPF vaccine protection rate was better than the normal view of poultry vaccines. Breeder Beijing is a Beijing company and the North have been to some types of chicken vaccine completely replace the imported vaccine SPF use and achieved good results in the future success Phytophthora species Peng, Shandong Province, the large field will gradually adopt sPF vaccine immunization. 2. SPF chicken embryos to prevent the pollution of the nineteenth pathogens, vaccine manufacturing one hundred percent rate of first-class products, SPF chickens vaccinated vaccination can completely avoid the pollution of the flocks, the disease in chickens purification of species can play out 'significant role in promoting. Past experience tells us that in the kind of purification process of the disease in chickens, by mid-quarantine, Amoy core mid-way, SP, MG positive rate could be significantly reduced, but the fork will quickly rebound after a few years to the original level The reason the one hand, feeding and health management measures adversely on the other hand,[link widoczny dla zalogowanych], is due to a mixture of poultry vaccines in a variety of pathogenic microorganisms,[link widoczny dla zalogowanych], these pathogens through vaccination approach to pollution is not fan-free chickens, increase the incidence rate in chickens love. Trial proof; application SPF vaccine, not only to ensure the health of species flocks, and flocks of the purifying effect can be consolidated to obtain the economic and social benefits is the flail as significant.
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