Hypoplastic anemia in calves born from highly productive cows: mechanisms of development, ways of prevention

The aim of this research was to study the mechanisms of anemia development in calves born from highly productive cows, and to find ways to prevent this disease. To achieve this aim hematological and related biochemical parameters of blood in calves were observed, which were administered vitamin B12, ferroglucin separately and combined at different stages of the postpartum period. The study was conducted on 88 calves at the age of 10-30 days. There was found anemia in 52 of that group. There were born from cows-mothers with impaired content and feeding in the dry period, the phenomena of ketoacidosis, postpartum endometritis and osteodystrophy. Sick calves were divided into 4 groups: animals with anemia untreated (BA), treated with vitamin B12 (BA+B12), treated with ferroglucin (BA+ferroglucin) and treated with a combination of vitamin B12 with ferroglucin (BA+B12+FG). Animals of the BA+B12 group were injected subcutaneously 5 times in 2 days with vitamin B12 at a dose of 200 μg, calves of the BA+FG group were injected subcutaneously with ferroglucin at a dose of 15 mg/kg at the beginning of the study, and animals of the BA+B12+FG group were administered a combination of vitamin B12 and ferroglucin according to the above scheme...