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Tác giả: Hữu Ninh Nguyễn, Thế Mưu Trần

Ngôn ngữ: vie

Ký hiệu phân loại: 658.31 Elements of personnel management

Thông tin xuất bản: Nông nghiệp & Phát triển Nông thôn, 2014

Mô tả vật lý: 93-98

Bộ sưu tập: Metadata

ID: 567293

This study aimed to investigate into growth perfonnance of 7 whiteleg shrimp populations. Seventeen crosses were produced and fonnulated from 8 families in each cross. Shrimp families were separately nursed in tanks to reach PL15 size before random sampling the same number of PL15 from in each family to generate cross. Crosses were nursed until the size (2 g/individual) of tagging by fluorescent for communal rearing in pond. High maintaining tag was observed of 98 percent at harvesting. The survival rate was not high because of stress by changing culture environment and tagging. There was significant different (P0.05) between crosses in tenn of growth perfonnance. The highest weight of shrimp was harvested in CP x CP cross. The populations showed best growth perfonnance were CP, Co, Me, Met, Ecu, Ha. The significance differences between crosses for length were observed at tagging however no different at harvest.
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