新城疫植物油乳剂苗的研究

应用植物油代替矿物油制备ＮＤ油苗，植物油苗时相中含２．５％或５％蜂蜡（ＢＷ，乳化剂），油相和水相比例为４：１，植物油苗免疫来航易感鸡，并采血检测清ＨＩ抗体效价，全部５％ＢＷ植物油苗的ＨＩ抗体和对照矿物苗Ｈ抗体无明显差异（Ｐ〉０．０５），而大多数２．５％ＢＷ植物油苗（２．５％ＢＷ花生油苗除外）及２．５％直溶ＢＷ植物油苗，大多数５％直溶ＢＷ植物疫苗９５％直溶ＢＷ玉米油苗除外）的ＨＩ抗体都明显低于（Ｐ〈

Newcastle Disease Oil-emulsion Vaccines Prepared with Vegetable Oil

Vegetable oils were used as replacements for min eral oil in ND oil-emulsion vaccines.2.5 percent or 5 percent of beewax(BW) of t he oil phase that was used to prepare water-in-oil emulsion vaccines that contai ned a final concentration of 20% aqueous antigen.White leghorn chickens were vaccina t ed and bled for their serlogic HI titers testing.The HI titers of all vegetable oil vaccines with 5% BW were not significantly different from those of control m ineral oil vaccine.but the HI titers of most vegetable oil vaccines with 2.5%BW( except peanut oil vaccine with 2.5% BW)were significantly lower than the control mineral oil vaccine.The HI titers of vegetable oil vaccines with 2.5% and 5% di rect-melted BW (except the corn oil vaccine with 5% direct-melted BW)were signif icantly lower than control mineral oil vaccine.Tissue reactions associated with vegetable oil vaccines were less severe than those associated with mineral oil v accine.These findings indicate that any of the several vegetable oil may be more suitable than mineral oil for preparation of poultry oil-emulsion vaccines.