Prepartum Milking. IV. The Effect of Prepartum Milking on Milk Production and Length of Time Required to Reach Peak of Lactation

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Abstract
There was no significant difference in the production of 22 prepartum milked cows and a corresponding group postpartum milked cows. There was also no significant difference in the production of 21 prepartum milked cows during the exptl. lactation and subsequent or previous lactations. The prepartum milked cows reached their peak of lactation in 35.9 [plus or minus] 2.53 days and the postpartum cows reached their peak in 44.8 [plus or minus] 4.51 days. This difference was not significant. 21 of the prepartum cows had at least 2 records. The 21 cows reached their peak in 36.7 + 2.54 days while in their subsequent or previous lactation they reached their peak in 44.6 + 3.69 days. This difference was significant at the 5% point of probability.