In order to have a significant impact on commercial scale production,
triploid shrimp must grow faster than their diploid counterparts
during a period from postlarva to marketing size. The period usually
falls within 3–6 months after hatching when the shrimp reach 15–
40 g size. Survival rates of the triploid shrimp should also be comparable
to that of the diploid individuals. Thus far, these two major obstacles
have not been overcome in any commercial farmed shrimp
production. Another shrimp species that challenges researchers and
aquaculturists is the black tiger shrimp Penaeus monodon. Wood
et al. (2011) described a successful triploid induction in this species.
However, this report provided only its success on the inductionmethods
and studies up to the nauplius, but not to the juvenile, stage. Sellars
et al. (2012) extended the study by rearing 6-dimethylaminopurine
(6-DMAP)-induced triploid P. monodon to marketing size, or postlarva
184 stage. However, they found that, in terms of growth rate, triploid
P. monodon had no advantage over the diploid ones.
In order to have a significant impact on commercial scale production,triploid shrimp must grow faster than their diploid counterpartsduring a period from postlarva to marketing size. The period usuallyfalls within 3–6 months after hatching when the shrimp reach 15–40 g size. Survival rates of the triploid shrimp should also be comparableto that of the diploid individuals. Thus far, these two major obstacleshave not been overcome in any commercial farmed shrimpproduction. Another shrimp species that challenges researchers andaquaculturists is the black tiger shrimp Penaeus monodon. Woodet al. (2011) described a successful triploid induction in this species.However, this report provided only its success on the inductionmethodsand studies up to the nauplius, but not to the juvenile, stage. Sellarset al. (2012) extended the study by rearing 6-dimethylaminopurine(6-DMAP)-induced triploid P. monodon to marketing size, or postlarva184 stage. However, they found that, in terms of growth rate, triploidP. monodon had no advantage over the diploid ones.
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