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Table 1 Effects of far-off and close-up feeding strategies on reproduction performance in seasonal calving cows

From: Effects of far-off and close-up transition cow feeding on uterine health, postpartum anestrous interval, and reproductive outcomes in pasture-based dairy cows

TreatmentsFar-offaClose-upbP values
GroupsControlfedOverfedSEMFeed65Feed90Feed120SEMFar-offClose-upInteractionc
Postpartum anoestrus interval, d d31311.63433281.90.800.07< 0.02
3-week submission rate, %91933.49094924.30.990.990.75
Conception rate to first mating, %44615.84657557.1< 0.050.750.64
Conception rate during first 3 weeks of mating, %47646.14461627.50.050.420.36
Conception rate during the first 6 weeks of mating, %63835.96776777.1< 0.020.510.05
3-week pregnancy rate, %43605.84057577.10.060.370.33
6-week pregnancy rate, %60795.76474716.90.020.46< 0.05
Final pregnancy rate, %e79914.88290825.50.100.470.69
  1. aFar-off Controlfed (Controlfed) were fed to gain BCS during late lactation and maintain BCS during the far-off non-lactating period. Far-off Overfed (Overfed) were fed to maintain BCS during the late lactation and gain BCS during the far-off non-lactating period [13]
  2. bClose-up treatments were managed to achieve daily ME intakes equivalent to 65%, 90% and 120% of their requirements (Feed65, Feed90, Feed120) during the 3 weeks pre-calving [13, 16]
  3. cInteractions are detailed in Fig. 3a-c
  4. dInterval from calving to d 1 of the two consecutive d that progesterone was > 1.95 ng/mL
  5. eMating period was 70 d (artificial insemination 39 d, 31 d natural bull mating)