Table 1 Body weight, body condition score, body condition score at calving, conception rates and post-partum interval by mature beef cows fed bermudagrass/bahiagrass hay supplemented by grazing on wheat/ryegrass pasture or wheat/ryegrass plus clovers over a 3-year period
From: Cool-season annual pastures with clovers to supplement wintering beef cows nursing calves
Treatmentsa | P-valueb | |||||
|---|---|---|---|---|---|---|
Item | WRG | WRR | WRW | SE | WRG versus Clover | WRR versus WRW |
Cow body weight, kg | ||||||
January | 596 | 608 | 579 | 9.8 | 0.83 | 0.05 |
February | 596 | 602 | 589 | 11.1 | 0.95 | 0.40 |
March | 575 | 594 | 565 | 11.0 | 0.73 | 0.08 |
April | 573 | 577 | 560 | 12.7 | 0.77 | 0.35 |
May | 599 | 582 | 584 | 11.2 | 0.27 | 0.93 |
June (weaning) | 607 | 594 | 593 | 12.6 | 0.34 | 0.97 |
Body condition score c | ||||||
January | 5.8 | 5.9 | 5.9 | 0.06 | 0.53 | 0.76 |
February | 5.9 | 5.8 | 5.9 | 0.09 | 0.72 | 0.34 |
March | 5.9 | 5.8 | 5.8 | 0.16 | 0.71 | 0.93 |
April | 5.9 | 5.7 | 5.9 | 0.15 | 0.71 | 0.55 |
May | 6.0 | 5.8 | 5.9 | 0.14 | 0.34 | 0.63 |
June (weaning) | 5.9 | 5.8 | 5.8 | 0.13 | 0.47 | 0.86 |
Conception rate,% | 73 | 83 | 85 | 4.9 | 0.07 | 0.79 |
Post-partum interval, d | 84 | 84 | 98 | 7.5 | 0.46 | 0.19 |