TY - JOUR JO - Journal of Animal and Feed Sciences J2 - J. Anim. Feed Sci. SN - 1230-1388 VL - 13 IS - Suppl. 1 PY - 2004 ID - Coelho2004 TI - Factors affecting milk yield at peak and during current lactation of Holstein cows AB - With the objective of investigating the impact of events occurring pre and postpartum on milk yield at peak and during lactation, data were collected from 1.042 lactations of 665 Holstein cows. Body condition score (BCS), calving season (CS), dry period length (DPL), occurrence of diseases and milk yield were registered. Calving season (summer), DPL, BCS at drying off, first somatic cells count (SCC) after calving, occurrence of retained placenta and of displaced abomasum negatively affected milk yield at peak. The same events, excluding CS, and including occurrence of clinical mastitis until 60 days post-partum, negatively affected milk yield during lactation. AU - Coelho, K. O. AU - Machado, P. F. AU - Coldebella, A. AU - Meyer, P. M. AU - Cassoli, L. D. AU - Rodrigues, P. H. M. SP - 475 EP - 478 DA - 2004 DO - 10.22358/jafs/73969/2004 UR - https://doi.org/10.22358/jafs/73969/2004 ER -