Effect of Feeding Frequency on Diurnal Dry Matter and Water Consumption, Liquid Dilution Rate, and Milk Yield in First Lactation

摘要: Abstract Four ruminally cannulated cows in first lactation (50 days postpartum) were assigned randomly to a 4 × 4 Latin square with the following feeding frequencies of same total mixed ration: one, two, four, and eight times day. Dry matter intake, water consumption, ruminal pH recorded hourly during 4-d collection (10-d adaptation between periods, Experiment 1). In 2, 30 animals blocked by milk production on wk 4 postpartum one or four day through 19 postpartum. Individual feed consumption daily. Hourly patterns dry variable over 24 h; once daily tended be more than other frequencies. Cows fed had higher liquid dilution rates those times; twice was not different from either. frequency ration no significant influence intake yield; however, exhibited consistent weekly tendency lower yield Efficiency fat-corrected slightly for