01390naa a2200169 a 450000100080000000500110000800800410001910000220006024501330008226000090021552008320022465000170105665000150107370000200108870000220110877300900113020922272018-06-05       1980    bl uuuu     u00u1 u    #d1 aPHILHPS, D. S. M.  aThe implications of milking management strategies involving variations of milking frequency in the immediate post-partum period.  c1980  aTwo experiments with identical-twin cows are described. The first compared once-daily milking and concurrent continuous single suckling for 4 days post par&m with twice-daily machine milking and twice-daily suckling. The two treatment groups showed a mean total lactation gain of 4.8% (P &lt 0.05) in milk and 4.6% ? (P &lt 0.01) in milkfat. The second compared twice-daily milking, commenced immediately post partum, with thrice-daily milking, for periods of 7 days and 8 weeks. Treatment period gains of 9.9% in milk and 16% in milkfat were recorded for-the 7-day x 3 group. The &-week x 3 erouu showed a gain of 9.4% in milk and 12.2% in milkfat in the-firstA 7 days, red&zing to 6.0% and 6.6% at the completion of the treatment phase. Body-weight changes in early lactation appear to be implicated in production .responses.  aDairy cattle  aDairy cows1 aWOOLFORD, M. W.1 aCOPEMAN, P. J. A.  tProceedings of the New Zealand Society of Animal Productiongv. 40, p. 166-174, 1980.