A summary of three years' study of the relationship of physical balance
to the utilization of pelleted and nonpelleted fattening lamb rations
was reported in Circular 358. Results of this work indicated the following:
(l) the optimum ratio in nonpelleted lamb-fattening rations was
45 percent. concentrate to 55 percent roughage; (2) pelleted rations
produced faster, more efficient ga.ins than nonpelleted rations' (3)
pelleted rations consisting of 40 percent concentrate and 60 percent
roughage produced gains as fast and as efficiently as pelleted rations
of 50 percent concentrate and 50 percent roughage; and (4) field-cured
alfalfa hay produced faster and more economical gains than dehydrated
alfalfa when mixed and pelleted with a concentrate. This year's test was
concerned primarily with finding the optimum concentrate to roughage
ratio for pelleted lamb fattening rations and with determining the value
of feeding loose hay with a complete pelleted ration for lambs. The value
of 3-mg. stilbestrol implants also was studied.
