禽流感血清抗体与卵黄抗体消长规律比较研究
금류감혈청항체여란황항체소장규률비교연구
Studies on the Decreasing and Increasing Rule of Serum-antibody and Yolk-antibody Titers in Laying Hens Vaccinated with Avian Influenza Oil-emulsion Killed Bivalent Vaccines
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