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Semi-lethal Abnormality of Limbs in Jersey Cattle

Animal Science Research Division, USDA, Logan, Utah 84321
Departments of Dairy Science and of Veterinary Science, Utah State University, Logan 84321

ABSTRACT

A condition is described in which nine female Jersey calves were born with congenital abnormalities of the musculo-skeletal system. The calves had little or no control over their legs and were unable to stand. The condition appears to be inherited but the mode is not clear from limited data. All 9 calves were sired by the same bull and were out of females related to the sire. This bull also sired twelve normal female and 18 normal male calves. Eight other bulls sired 33 normal calves during the same period. Five of the nine affected calves were born dead, a higher (P < .01) stillborn ratio than for unaffected calves.