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Contents


                                                                                                                       5    Abstract
                                                                                                                       9    1 – General introduction

                                                                                                                       25   2 – A systematic literature review of the major factors causing  yield gap by
                                                                                                                            affecting growth, feed conversion ratio and survival  in Nile tilapia
                                                                                                                            (Oreochromis niloticus)

                                                                                                                       69   3 –Genotype by environment interaction between aerated and non-aerated
                                                                                                                            ponds and the impact of aeration on genetic parameters in Nile tilapia
                                                                                                                            (Oreochromis niloticus)

                                                                                                                       105   4  –  Fluctuations in  growth are heritable  and  a  potential indicator  of
                                                                                                                            resilience in Nile tilapia (Oreochromis niloticus)
                                                                                                                       129   5 – Heritable variation in swimming performance in Nile tilapia (Oreochromis
                                                                                                                            niloticus) and negative genetic correlations with     growth and harvest
                                                                                                                            weight
                                                                                                                       155   6 – General discussion

                                                                                                                       175   Summary
                                                                                                                       181  Curriculum vitae

                                                                                                                       189   Acknowledgement
                                                                                                                       193   Colophon























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