author(s)
Asit Chakrabarti, VK Yadav, PK Sarkar, Indrajeet and D Kherwar

abstract
Monozygous twinning occurs infrequently in cattle and likely accounts for relatively few twin births in the dairy cattle population. But, in present case a monozygous twinning of Sahiwal calves were observed in Barka Chumba village located in Mandu Block of Ramgarh district, Jharkhand. The body weight of the calves was found to be approximately 70 kg at 12 months of age. The calves were having poor growth and body condition. The overall health of the cow was also poor and the body weight of the cow was approximately 350 kg. The cow was having history of retained placenta and ketosis. Cows calving twins as well as the calves born as twins are at higher risk for health-related problems compared to non-twinning herdmates. To reduce the twinning in cow strategy has to be adopted to investigate the factors responsible for twinning in dairy cattle and to develop and test the efficacy of practical strategies for identifying and managing cows carrying twins.