Seasonal and age-related changes in the testis of Labeo rohita during the age of 18 to 29 months. The tissues were fixed in buffered formalin paraffin embedded and 5µ thick sections were stained with hematoxylin-eosin. The stained sections were photomicrographed with high resolution digital camera. For other details, see Table I and II and the section “Materials and Methods”. Bv, Blood Vessel; I, Interstitium; LL, Lobular Lumen; PGC, Primary Germ Cell; PS, Primary Spermatocytes; SG, Spermatogonia; SS, Secondary Spermatocytes; ST, Spermatids