Effect of Twinning on Calving Ease and Viability of Calves

The aim of the current research was to evaluate the effects of twinning on calving ease and calves’ viability in Romanian Spotted dual-purpose breed. Data from 280 births (260 single and 20 twin births) were enrolled in order to assess the twinning and the dystocia incidences. Viability of calves was estimated based on a data set collected from 300 calves (260 singleton and 40 twin calves). The average incidence of twinning in herd was 7.14%, while the incidence of dystocia was 19.23%. The twin pregnancies proved to be the major factor related to dystocia, causing a higher prevalence compared to single pregnancies (15% vs. 4.23%, p≤0.001). Stillborn incidence was the most prevalent in twin compared to single births (5% vs. 2.31%, p