Immunization Against Pox in Domestic Fowl
Immunization Against Pox in Domestic Fowl
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In our eReader you can find the full English version of the book. Read Immunization Against Pox in Domestic Fowl Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Immunization Against Pox in Domestic Fowl
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Storage at ice-box temperature for 48 hours of 1-percent sus- pensions of fowl-pox virus containing different preservatives such as . 025 to . 5 percent formalin, . 5 percent phenol, 2 percent saponin, and . 5 percent tricresol resulted in complete loss of viability of the virus and failure to produce either a reaction or resistance to pox in four-week-old chicks.
The practical application of the foregoing findings may be stated as follows: Potent fowl- and pigeon-pox vaccines properly administ...ered to healthy fowls produce a measurable immunity against fowl pox. The immunity induced by the application of fowl-pox vaccine, stick method, is of longer duration and better defined than the immunity induced by the application of pigeon-pox vaccine by the feather- follicle method. Pigeon-pox vaccine can be used with less risk than fowl-pox vaccine but it provides only a modified protection against the disease. In fact, fowls vaccinated with pigeon-pox vaccine may, upon subsequent ex- posure, develop lesions, but the systemic disturbance accompanying the unaltered virus infection is appreciably modified and often avoided.
What to read after Immunization Against Pox in Domestic Fowl?
You can find similar books in the "Read Also" column, or choose other free books by Robert Graham to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Storage at ice-box temperature for 48 hours of 1-percent sus- pensions of fowl-pox virus containing different preservatives such as . 025 to . 5 percent formalin, . 5 percent phenol, 2 percent saponin, and . 5 percent tricresol resulted in complete loss of viability of the virus and failure to produce either a reaction or resistance to pox in four-week-old chicks.
The practical application of the foregoing findings may be stated as follows: Potent fowl- and pigeon-pox vaccines properly administ...ered to healthy fowls produce a measurable immunity against fowl pox. The immunity induced by the application of fowl-pox vaccine, stick method, is of longer duration and better defined than the immunity induced by the application of pigeon-pox vaccine by the feather- follicle method. Pigeon-pox vaccine can be used with less risk than fowl-pox vaccine but it provides only a modified protection against the disease. In fact, fowls vaccinated with pigeon-pox vaccine may, upon subsequent ex- posure, develop lesions, but the systemic disturbance accompanying the unaltered virus infection is appreciably modified and often avoided.
What to read after Immunization Against Pox in Domestic Fowl?
You can find similar books in the "Read Also" column, or choose other free books by Robert Graham to read onlineMoreLess
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