Table 2. Performance of crossbred lambs consuming either a forage or grain based diet while in confinement or on wheat stubble fields in yr 11)
Item | Treatment2,3) | SEM | p-value |
Confinement4) | Field5) | Model | Location6) | Feed7) | Location × Feed |
CALF | CBAR | FALF | FBAR |
Ending BW8) (kg) | 50.6 | 50.5 | 51.3 | 49.5 | 0.78 | 0.49 | 0.85 | 0.24 | 0.30 |
ADG (kg/d) | 0.25 | 0.25 | 0.26 | 0.23 | 0.01 | 0.49 | 0.83 | 0.21 | 0.30 |
DMI (kg/d) | 2.09a | 1.67b | 2.09a | 1.62b | 0.05 | < 0.01 | 0.59 | < 0.01 | 0.64 |
Gain to feed | 0.12b | 0.15a | 0.13b | 0.14a | 0.01 | 0.01 | 0.74 | 0.01 | 0.36 |
Cost of gain ($/kg) | 4.33a | 3.09b | 3.95a | 3.14b | 0.21 | 0.00 | 0.42 | < 0.01 | 0.29 |
Start date for all treatments was September 26th.
Pen is the experimental unit, 3 sheep per replicate confinement, 6 sheep per replicate field; six replicates per treatment.
Diets were provided to allow for ad libitum intake.
CALF: pellet containing 71% alfalfa, 18% barley, 5% molasses, and 6% vitamin/mineral package; CBAR: pellet containing 60% barley, 26% alfalfa, 4% molasses, 2.5% soybean-hi pro, and 7.5% vitamin/mineral package.
FALF: field fed pellet containing 71% alfalfa, 18% barley, 5% molasses, and 6% vitamin/mineral package; FBAR: field fed pellet containing 60% barley, 26% alfalfa, 4% molasses, 2.5% soybean-hi pro, and 7.5% vitamin/mineral package.
Location, confinement or field finish.
Feed, alfalfa or barley pellets.
End date for field and confinement treatments was November 25th.
Least Square Means within a row with different superscripts differ (p < 0.10).
BW, body weight; ADG, average daily gain; DMI, dry matter.