Detection And Analysis Of Immune Antibody Against Hog Cholera And The FMD In Jinxian City

To observe the level of antibody in hog cholera and foot and mouth disease in Jinxian county, and then to analyze impact factors with vaccine immune valence, collecting serums in some pig farms is to detect immune antibody of CSF and FMD by indirect Hemagglutination assay that antibody positive rate of hog cholera and foot and mouth disease are89.5%and85.9%respectively from October to December2011; Antibody positive rate of north county is higher than south county, and scale farmers is far above free-range farmers; From comparison in stages of swinery, whether hog cholera or foot and mouth disease, the antibody positive rate from high to low is:multiparous sows> piglets> finishing pigs> growing pigs.Pass site measurements and test results, while stocking density of piglets≥0.3m2/a pig, growing pigs≥0.6m2/a pig, finishing pigs≥1m2/a pig, multiparous sows≥1.5m2/a pig, pigs could reach the ideal antibody positive rate. According to count the immune days and immune dose of test pigs, the results are that the first CSF vaccination is at25-30day-old, vaccination campaign is at55-60day-old, multiparous sows are3times a year; The first FMD vaccination is at30-35day-old, vaccination campaign is at60-65day-old, multiparous sows are3times a year; Immune dose of CSF vaccine:a piglet one portion, a growing pig two portions, a multiparous sow three portions; Immune dose of FMD vaccine: one milliliter of a piglet, one to two milliliter of a growing pig, three milliliter of a multiparous sow. The immune procedure is fit to the condition in Jinxian, and it could certify higher level of antibody, what’s more, it can enhance the application.