Soundarapandian P, Dinakaran GK and Varadharajan D
Mass larval culture experiments were carried out from naturally collected berried females and also unilateral eyestalk ablated females. Fecundity was more in the naturally collected berried females. It was ranged between 7,271 ± 17.34 and 28,520.60 ± 31.11. Comparatively the fecundity was little bit low in the eyestalk ablated females. It was ranged between 7,112.66 ± 19.19 and 28,225.33 ± 36.37. The hatching rate was maximum in the naturally collected berried females (97.65 ± 0.59). It was less (92.81 ± 0.69) in the eyestalk ablated females. The incubation period for naturally collected females was 14.00 ± 0.07 days and it was 14.79 ± 0.11 days in eyestalk ablated females. The larval cycle was completed within 40.86 ± 0.58 days in naturally collected berried female. Whereas it was 41.97 ± 0.38 days in eyestalk ablated females. The survival rate of hatchlings was higher in naturally collected brooder (74.04 ± 0.09%) and it was less (70.35 ± 0.21%) in the eyestalk ablated females.
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