References
- Greenough , PR , McCallum , FJ and Weaver , AD . 1981 . Lameness in Cattle , 2nd , 97 – 112 . Philadelphia : JB Lippincott Company .
- Johnson , JL , Leipold , HW and Schalles , RR . 1981 . Hereditary polydactyly in Simmental cattle . Journal of Heredity , 72 : 205 – 208 .
- Leipold , H . 1997 . “ Congenital defects of the musculoskeletal system ” . In Lameness in Cattle , 3rd , Edited by: Greenough , PR and Weaver , AD . 79 – 86 . Philadelphia : WB Saunders Company .
- Leipold , HW and Dennis , SM . 1987 . Cause, nature, effect and diagnosis of bovine congenital defects . Irish Veterinary News , 9 : 11 – 19 .
- Leipold , HW , Hiraga , T and Dennis , SM . 1993 . Congenital defects of the bovine musculoskeletal system and joints . Veterinary Clinics of North America: Food Animal Practice , 9 : 93 – 104 .