%0 Conference Proceedings %T Field Trial Evaluation of Kolbin RC (Rotavìrus, Coronavirus/Escherichia coli). Vaccine for Prevention of Neonatal Calf Diarrhea in Dairy Herd %A Mohammadi, Gholam Reza %A Mohri, Mehrdad %A Hamidi, Farshid %A Seyyed Mohsen Ghavami %J 11TH INTERNATIONAL CONFERENCE oF THE ASSOCIATION OF INSTITUTIONS FOR TROPICAL VETERINARY MEDICINE %D 2004