Effects of Calving Age and Calf Sex on Colostrum Composition and Its Changes After Calving in Anatolian Buffaloes

Objective: This study aims to investigate the changes in colostrum during the first 72 h after birth and to elucidate the impact of calving age and calf sex in Anatolian buffaloes. Materials and Methods: The study used colostrum samples from 25 newly calved Anatolian buffalos raised under similar farm conditions. The samples were collected at the first milking after calving (T0), 24 h (T24), 48 h (T48), and 72 h (T72) after calving during the summer season. The postpartum period, calving age, and calf sex were considered as non-genetic factors. Results: The first milking colostrum weight, fat, solids-not-fat (SNF), protein, and lactose content were determined as 2.95±0.21 kg, 7.96±0.45%, 17.5±1.63%, 14.5±1.45% and 2.58±0.24%, respectively. Fat, SNF, and protein were significantly higher at T0. Colostrum weight was the lowest at T0 and T24, gradually increasing at T48 and T72 (P0.05). The calving age and calf sex did not statically affect colostrum weight, fat, SNF, protein, and lactose content (P>0.05). Conclusion: In conclusion, the composition of buffalo colostrum showed significant changes in the postpartum period, especially after the first milking. Therefore, providing high-quality colostrum as soon as possible is recommended for calf health.