1. Calf mortality;Andrews;Cattle Practice,1999
2. Management of diseases in calves and heifers;Blowey,2005
3. Some factors to influence calf mortality in crossbred cows;Chore;PKV Research Journal,1998
4. DEFRA. “Improving calf survival”. 2003a. PB3335. http://www.defra.gov.uk/animalh/welfare/farmed/cattle/booklets/calfsurv.pdf (accessed 19.10.06).
5. DEFRA. Code of recommendations for the welfare of livestock. Cattle. 2003b. http://www.defra.gov.uk/animalh/welfare/farmed/cattle/booklets/cattcode.pdf (accessed 19.10.06).