The best temperatures that sperm are produced is 37oc. if the temperature is higher than this then the scrotum lowers and if its colder than this the scrotum contracts and becomes more wrinkly.
The best temperature of the testes for normal sperm production is 1-1/2 to 2 degrees below body temperature, so, say, about 97 degrees.
37 degree below
Lower than body temperature
Temperature below body temperature in neccessary for sperm production. That is why the testicles are descended; they need to have a separate, lower temperature system.
35 degrees C a few degrees cooler than core body temp.
Temperature
The best temperature of the testes for normal sperm production is 1-1/2 to 2 degrees below body temperature, so, say, about 97 degrees.
37 degree below
Testicle temperature regulation is essential in maximum sperm production.
Lower than body temperature
The sperm need to be cooler than body temperature, hot tubs increase the temperature of the testicles above body temperature and production of sperm is decreased.
Production of sperm is reduced. The testicles need to be cooler than core body temperature for the production of numerous and viable sperm.
cremaster
The best temperature to keep sperm alive is with the human body. You may realise that during very cold temperatures your scrotum tends to go closer to your body. This is because they want to get the body heat. Once the sperm leaves the penis, it will not survive for very long.
The sperm count is dependent on the temperature of the testes. The testes are external to the body because they require a lower temperature to produce viable sperm. The testes work best at temperatures slightly less than core body temperature. Spermatogenesis is less efficient at lower and higher temperatures. This is the reason for retraction of the testes in the cold as well as non-viable sperm in men with (medically) undescended testes.
Temperature below body temperature in neccessary for sperm production. That is why the testicles are descended; they need to have a separate, lower temperature system.
Sperm production is the creation of sperm in the testies of the bull. Ovum production is the creation of eggs in the ovaries of the cow.