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ror instance ur. i urner, icesearch Etomolgist, report on ftldjings of ttto systemic insecticide; now on the market for controlling cattle insects; namely grujw, lice and horn flies. • J • Trolene is administered in bolus (75c each) form (q) 1 per 30J lbs. Iiveweight while Co. Ral is applied as a spray costing anproxi\ ( inately 84c per head. Neithe should be used: on calves under 1 months of age, dairy- cow.; producing milk for human consumption, or cattle to be butchered <irt less than 60 days. The best time to use these systemic (one that is picked up by the animals bloodstream) insecticides is August, September and Qctober. Dr. Turner advised they should ,not' be jjsed after , Novntber 1st. One treatment is sufficient to kill these insects infesting the animals at the1, time, ’of treatment. Since these insecticides are competitive on the market their price is expected to be lower when in mass production.
Also interesting reports were ^iven on, “chemical and body composition changes of steers that gain at different levels at various times in life. '
(1) Maintenance or no gain steers have taught us that during the yearling year a stunt or feed shortage -is not seripus if the proper nutrition is provided to maintain health.
(2) Roughage fed steers have shown that all they can eat will not produce carcass beef acjjpptable to the housewife. It takes some fattening feed in addition to good roughage. 1
(3) Limited grain feeding is thought to demonstrate a practical program /or steer feeding in Virginia. Maximum roughage which includes pasture in season plus 15 20 bushels of corn should produce high good or low choice carcass beef. This is where we should aim with yearling cattle in Virginia. (4) Full feeding for two years
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