Abstract:
Circular 320 from this station contains a three-year summary comparing
heifers wintered in dry lot with heifers wintered on dry grass, and the
effect of this winter treatment on their total performance in a wintering,
grazing, and fattening program. The heifers wintered on dry grass gained
32 pounds less for the year, had a lower dressing percentage, graded lower,
and sold for about $1 a hundred less than heifers wintered in dry lot.
However, the heifers wintered on dry grass returned as much money above
feed costs as the heifers wintered in dry lot, due primarily to lower winter
feed costs and high summer grass gains.
In the test reported here the plane of nutrition has been raised slightly
for the heifers wintered on dry grass, to acquire some of the desirable
characteristic associated with dry-lot wintering, but still maintaining low
winter feed costs. In addition different levels of protein supplementation
are compared.