Some studies on body temperature of Friesian cattle at Sharkia province

This work was carried out on the Friesian Cattle of thefaculty of Agriculture Farm, Zagazig University , during theeperiod from April 1974 to March 1975. This study included fartymimcls ( 6 Males and 34 Females ) which were divided into three groups according to age •Body temperature, pulse rate and respiration rate wererecorded three times daily. The results obtained were as follows s’There were a seasonal variations in body temperature,pulse rate and respiration rate in all animals • Thehighest values in body temperature and respiration ~atewere reoorded in Summer during the period of highatmospherio temperature while the lowest values wererecorded in Winter during the period of low atmospheriotemperature • Spring and Autumn were intermediatebetween Winter and Summer. The pulse rate was at itslowes~ level in Winter while it Was faster in Autumn. andSpring but slight variations from maximum ooour inSummer.With regard to diurnal variation in 2- body temperature-, pulse rate and respiration rate, it was found that thelowest level for eaoh oocurred in the early morning (7 a.m) during rest and before feeding, but the maximum