Acute effect of temperature on gametocytes of Rattus norvegicus: focus on morphometric study

[3-7] related to testicular function and spermatogenesis . [8] reported that, mammal including human being where testicular temperature found lower than core body temperature and recorded scrotal temperature as 2 - 3∞C lower than rectal temperature. In many mammals, including rats and man, the testes [9] within the scrotum were maintained at a low temperature . Optimum temperature required for spermatogenesis in human is 35∞C ± 1. Increase in testicular or scrotal temperature has induced [10] reduction in sperm count, total percentage and morphometry . Temperature has also influenced and delayed rate of [11-12] spermatogenesis . From decades work has been carried out related to spermatogenesis in different animals including invertebrates. studied the effect of high fluoride on quality of sperm in Rattus [14], norvegicus. studied the effects of Phaleria macrocarpa on male fertility by assessing its effect on the sperm characteristics including the sperm count, mortality, viability and its, [15] morphometry. , studied the effects of lead poisoning on the testes in albino rats. Available literature and information shows that scanty work has been carried out related to acute effect of temperature on spermatogenesis. So, present study was focused related to acute effect of varied temperature up to 96 h of exposure period. Data obtained was discussed in relation to morphometric analysis of sperm and reproductive physiology in experimental animal.