M. U. Akhtar1, Hifzulrahman2, M. Ahmed3, T. N. Pasha4, M. Abdullah2, R. M. Shahbakht2, M. I. Haq5 and M. N. Haque1*
1Department of Animal Nutrition, University of Veterinary and Animal Sciences, Lahore;
2Department of Livestock Production, University of Veterinary and Animal Sciences, Lahore;
3Dairy Animals Training and Research Center, University of Veterinary and Animal Sciences, Lahore;
4University of Education, Lahore;
5Provincial Animal Nutrition Laboratory, Livestock Complex, Lahore