Stress Influence on qualitative and quantitative semen bulls of modern breeding
It has proven that a stress provoked by a blood test (a routine veterinary and preventive care) adversely influences on the semen production (concentration, total number of ejaculate spermatozoa, frozen semen dose output) for 24 to 48 hours in spite of the year season. An abrupt collecting a sire semen sample during routine veterinary and preventive actions has been suggested to correct for reducing both technological defects and economic losses by 20 % within the period of the short-term stress factor impact.