EFFECT OF SHEARING WOOL AND THE MONTHS OF THE YEAR ON SOME HEAT TOLERANCE STANDARDS IN AWASSI TURKISH EWE

Abstract

This experiment aimed to identify the effect of wool shearing and the environmental factor represented by some hot months of the year on some of the criteria for thermal endurance in Awassi Turkish ewe .The experiment was carried out at the Dawar Research Station in Ramadi of the Agricultural Research Department / Ministry of Agriculture. For the period from July 1, 2019 to October 1, 2019. In the experiment, 18 Turkish Awassi ewes, aged 3-5 years, with an average weight of about 55 kg, were used. The ewes were randomly divided into three equal treatments in each treatment 6 ewes. The ewes of the control group were not shearing the wool, the second treatment (T2) was treated with shearing at a level of 1 cm above the skin , and the third treatment (T3) was treated with shearing at the level of the skin.The value of the weekly THI in this study (32.33, 31.08, 31.70, 32.53, 33.45, 33.83, 34.60, 33.91, 31.90, 31.10, 31.84, 32.74) for the study weeks in a row, while the monthly THI was (31.63, 33.48, 31.82) for the months of the study in July August and September in a row The results of the experiment showed a significant difference in the control group with the effect of the treatment on the Respiratory Rate during the weeks (1,5,7,8,11) compared to the two treatment groups, while no significant differences were recorded with the effect of the period. body temperature, observed with the effect of the treatment and the time period in the control group compared with the two treatment groups, in conjunction with the high value of THI in the seventh week and the fifth week of the experiment, and the results of the hormone cortisol showed no significant differences in the effect of the treatment, while the results indicated that There was a significant difference between the months in the control group, as it recorded its highest level in the month of August at a rate of (4.56 ± 0.693) compared to (3.58 ± 0.254, 3.32 ± 0.594) for the months of July and September, respectively, in conjunction with recording the highest value of THI (33.48).