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  <leader>02412nam a2200217Ia 4500</leader>
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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="a">Phạm, Văn Tình</subfield>
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   <subfield code="a">46 câu hỏi - đáp về sản xuất giống và nuôi tôm càng xanh :</subfield>
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   <subfield code="b">(Macrobrachium rosenbergii)</subfield>
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   <subfield code="c">Phạm Văn Tình</subfield>
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   <subfield code="a">Thành phố Hồ Chí Minh</subfield>
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   <subfield code="b">Nông nghiệp</subfield>
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   <subfield code="a">Cuốn sách &quot;46 câu hỏi - đáp về sản xuất giống và nuôi tôm càng xanh&quot; gồm những câu hỏi như: Ở nước ta, tôm càng xanh phân bố ở những vùng nào trong tự nhiên?-tại sao ở các tỉnh phía Bắc không có tôm càng xanh phân bố trong tự nhiên?-Những vùng trong tự nhiên không có tôm càng xanh phân bố có nuôi được tôm càng xanh không?Chu kỳ lột xác của tôm càng xanh, để thuận tiện trong việc chăm sóc và quản lý ao nuôi?-Tôm càng xanh được sản xuất giống nhân tạo từ khi nào trên thế giới cũng như ở nước ta?-Thời gian ấp trứng của tôm là bao lâu? Một con tôm mẹ thường mang bao nhiêu trứng?-Lựa chọn vị trí xây dựng trại sản xuất giống tôm càng xanh như thế nào để sản xuất đạt hiệu quả?-Khi thực hiện sản xuất giống nhân tạo, đánh bắt, vận chuyển tôm mẹ mang trứng như thế nào?Nguồn tôm mẹ mang trứng ngoài tự nhiên có sử dụng sản xuất giống được không? Nguồn tôm mẹ nào tốt nhất?Khi nuôi tôm càng xanh thương phẩm, sử dụng con giống thu gom trong tự nhiên và con giống sản xuất nhân tạo có gì khác nhau? Sử dụng loại nào tốt hơn?Trong sản xuất giống tôm càng xanh nhân tạo, biện pháp phòng bệnh như thế nào đạt hiệu quả nhất?.....</subfield>
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   <subfield code="a">Fish culture,Shrimps</subfield>
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   <subfield code="i">Nguyễn Quang Điền, Giang sửa</subfield>
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   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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