About 31,000 tagged fingerlings representing 519 full-sib families
produced in the five generations were tested in freshwater earthen
ponds (1300–1600 m2
) at two locations in Dingan County, Hainan
Province (Table 3). The earthen ponds were fertilized a week before
stocking tagged fingerlings. Batches of families were stocked during
July–September and males and females were stocked in the same test
environments for grow-out testing. All fish in the two first generations