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浏阳市5个猪场猪伪狂犬病毒母源抗体的调查与分析 被引量:2

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摘要 试验采用ELISA法,对湖南省浏阳市5个不同规模商品化猪场共60头母猪及所产180头仔猪的PRV-g B抗体水平进行跟踪调查。试验发现每个场仔猪PRV-g B母源抗体在7~75日龄期间均呈逐渐下降趋势,到75日龄时,C、D场仔猪母源抗体水平仍较高,平均S/N值均在0.4以下,A场次之,平均S/N值均接近0.5,B、E场母源抗体水平最低,平均S/N值均在0.6以上。联系各场仔猪首免时间,只有A场合理,C、D场需推迟而B、E场需提前。这说明在当前母猪常规普免PR疫苗3~4次/年的情况下,各场仔猪均能获得较好的免疫保护,但在实际生产一线中,由于饲养管理、免疫程序、猪只免疫应答能力的不同,仔猪母源抗体水平确实存在较大差异。若想提高仔猪母源抗体水平,应当综合考虑加强产房仔猪和哺乳母猪饲养管理,提高初乳质量和初乳摄入量,同时监测仔猪母源抗体水平,适当调整首免时间显得非常重要。
出处 《湖南畜牧兽医》 2018年第6期26-28,共3页 Hunan Journal of Animal Science & Veterinary Medicine
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