The study seems so important and well conducted. The aims and the parameters dealt with (mortality, morbidity, beef heifers performance and stress factors effects) have great justifiable grounds. I would suggest using lower weights, studying a wide range of stressful factors besides the natural ones, and increasing the trial periods. Thank you so much for your great efforts for reducing the stress factors effects to optimize and maximize beef cattle production and efficiency.
Dr.Khazel (Ph.D..Animal Breeding and Genetics).