摘要
本试验利用伊莎蛋雏鸡，分别接种新城疫油乳剂灭活苗和Ｎ－７９弱毒苗，油乳剂灭活苗免疫的各试验组抗体滴度稍有下降，与对照组间无明显的差异；Ｎ－７９弱毒苗免疫的各试验组，高温处理２４小时的雏鸡，抗体滴度稍低于对照组，但无明显差异；而高温处理４８小时的各组，抗体滴度均显著低于对照组（ｐ＜０．０５）。
ISA chickens which were received either inactived oil emulsion(OE)or N 79 viable newscastle disease(ND)vaccines were conducted to investigate the effect of heat stress to imune response.The results showed the HI Ab of OE were developed slightly lower,but nonsignificant difference ws found between treatments and controls.The HI Ab of chickens which were stressed 48h and received N 79 vaccine were significantly lower(p<0 05)than that of controls.
