2001, 18(9):4-5.
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2001, 18(9):6-6.
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2001, 18(9):14-15.
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2001, 18(9):15-15.
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2001, 18(9):24-24.
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2001, 18(9):25-26.
摘要:The serous ND maternal antibody(Mab) level in the young ostriches from ND vaccinated ostriches was de- determined for as days after hatching. The results showed that the serous MAb level gradually increased and reached its peaks at 7 day old and then gradually decreased. MAb could at be detected at 25 day old. The fourteen day old was suggested to be the critical age for vaccination of young ostriches from routine ND vaccinated breeding ostriches.
2001, 18(9):28-28.
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2001, 18(9):30-30.
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2001, 18(9):34-34.
摘要: