
TY  - JOUR
A1  - Wodzicka, M 
T1  - Seasonal variations in wool growth and heat tolerance of sheep. II. Heat tolerance
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1960
VL  - 11
IS  - 1
SP  - 85
EP  - 96
KW  - 
UR  - https://doi.org/10.1071/AR9600085 
N2  - The heat tolerance of rams at an air temperature of 105&#176;F (40.6&#176;C) and 34 mm Hg water vapour pressure was studied over a period of 1 year at Beltsville, Maryland. The rams were more heat tolerant in summer than in winter. This difference was significant (P < 0.001). Tolerance was less in July than in June and August. The reasons for this are discussed. Shearing increased the heat tolerance of rams (P < 0.001), presumably by enhancing the efficiency of evaporative cooling from the skin. There is evidence that shearing reduced heat acclimatization, especially during the cooler months. 
ER  -

