Abstract
This study aims to evaluate the effects of prepartum body condition score (BCS) on serum concentrations of insulin, glucose, non-esterified fatty acids, b-hydroxybutyrate , and IGF-1 of dairy cows during the transition period. Sixty multiparous ¾ Holstein ´ ¼ Gir cows will be classified according to BCS on d -21 from parturition. All animals will be allocated in drylot pens with ad libitu…