Bài viết nghiên cứu tương tác giữa các kiểu gen và môi trường tính trạng tăng trưởng đã được công bố trên quần thể chọn giống G1 cùng chương trình nhưng chưa có dữ liệu lặp lại trên các thế hệ tiếp theo nhằm khẳng định sự tồn tại tương tác này hay không và có định hướng tốt cho thiết kế chương trình chọn giống tiếp theo. | Tương tác giữa kiểu gen và môi trường đến tính trạng tăng trưởng và tỷ lệ sống trên tôm sú (Penaeus monodon) chọn giống thế hệ thứ 4 24 Tr÷íng ¤i håc Næng L¥m TP. Hç Ch½ Minh Genotype by environment interaction for growth and survival rate in black tiger shrimp (Penaeus monodon ) in generation 4 Sang V. Nguyen∗ , Luan T. Nguyen, & Nhien V. Tran Research Institute for Aquaculture No. 2, Ho Chi Minh City, Vietnam ARTICLE INFO ABSTRACT Research Paper Genotype by environment interaction for growth rate in G1 of the same selection program has been published. However, there Received: May 02, 2019 is no repeated figure in later generations for confirming and Revised: August 01, 2019 well-planning the design of selection program for further im- Accepted: August 08, 2019 provement. The experiment was conducted using selective pop- ulation of generation 4 with 97 families tested in 3 environments. Growth (body weight) and survival rate at harvest weight were Keywords recorded and evaluated. There was no genotype by environment interaction for both traits with high genetic correlations of the same traits tested between ponds in the Central and in the South Black tiger shrimp of Vietnam of and , respectively. There was also no Genotype by environment interaction genotype by environment interaction for growth rate between Growth ponds in the South of Vietnam and bio-security indoor tank Survival rate with high genetic correlation of . These results indicated that the number of testing environments would be reduced to save the operation cost for a breeding program. Estimated ge- ∗ Corresponding author netic response was from moderate to high for growth trait cor- responding to moderate to high heritabilities ( - ) and Nguyen Van Sang high for survival rate corresponding to high heritabilities ( Email: nguyenvansang1973@ - ). Cited as: Nguyen, S. V., Nguyen, L. T., & Tran, .
