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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="a">636</subfield>
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   <subfield code="a">60620105</subfield>
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   <subfield code="a">Mai Hoàng Việt</subfield>
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   <subfield code="a">Bước đầu khảo sát bệnh Newcastle trên đàn gà mắc bệnh tại ba huyện thuộc tỉnh An Giang và thử nghiệm một quy trình phòng bệnh với vaccine Newcastle chịu nhiệt (Luận án Thạc sĩ Khoa học Nông nghiệp, chuyên ngành Chăn nuôi)</subfield>
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   <subfield code="c">Mai Hoàng Việt</subfield>
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   <subfield code="a">Cần Thơ</subfield>
  </datafield>
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   <subfield code="b">Trường ĐH Cần Thơ</subfield>
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   <subfield code="c">1998</subfield>
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   <subfield code="a">Công trình khảo sát, thử nghiệm về bệnh Newcastle trên gà ( bệnh gây ra chủ yếu ở gà dưới 7 tháng tuổi, nuôi chăn thả, thời điểm mắc bệnh rải rác ở các tháng mùa khô, tập trung nhất vào tháng 1). Đồng thời qua quy trình thử nghiệm, công trình cũng cung cấp các phương pháp chủng phòng vaccine Newcastle chịu nhiệt (bằng cách cho ăn với gà thả và cho uống với gà nuôi nhốt ở 6 tuần tuổi</subfield>
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   <subfield code="a">poultry - breeding,poultry - virus diseases,veterinary medicine</subfield>
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   <subfield code="i">Minh, 990409</subfield>
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   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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