eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2015-02-16 2 2 417 421 889 article Kadambri Gupta 1 1 Krishan Raj Kant 1 Sheetu Raina 1 Department of Zoology, University of Jammu, Jammu - 180 006 (India). The effect of eyestalk ablation (uni-lateral and bi-lateral) on ovarian histology of Macrobrachium dayanum has been evaluated. Morphological variables like weight and size were recorded & ovaries were histologically evaluated according to oocyte diameter and percental occurrence of oocytes.In the ovarian tissue of unablated female’s basophilic oocytes (BO) were dominant. Larger oocyte with yolky granules in the cytoplasm could be detected only in the ovaries of ablated females. Another distinguished feature of the ovaries of ablated females was the presence of advanced and atretic oocytes.The presence of advanced oocytes in ablated females probably indicates the effect of uni-lateral/bi-lateral eye-stalk ablation (UEA/BEA)in the reproductive cycles of Macrobrachium dayanum under laboratory conditions. https://biomedpharmajournal.org/vol2no2/effect-of-eye-stalk-ablation-on-reproduction-in-female-prawn-macrobrachium-dayanum/ Eye-stalk abltation Macrobrachium dayanum