1. Points to be considered in eyestalk ablation
Eyestalk ablation in crustaceans:
The eyestalk ablation is carried out only in female and not in male.
For eyestalk ablation, P. indicus with a carapace length of 30 mm (total length, 150 mm weight > 20 g) and P. monodon with the carapace length of mm (total length > 200mm and weight >100g) are normally selected.
Before removing eyestalks, the broodstock are kept in large plastic pools containing filtered sea water of 33  20%.

2. Points in the eyestalk ablation… cont’d
After about 24 hrs, the eyestalks are removed in the females using electrocauterization technique.
The ablated female and unablated males are then kept at 2:1 in larger circular plastic lined pools, in which the sea water is made to circulate through sub-gravel filter by air lifts.
The breeders are fed ad libitum using chopped fish or calm meat.
The temperature, salinity and pH of the medium are maintained at 28  2, 32  2% and respectively.