There is some confusion about the various growth implants available for suckling and stocker cattle. Six basic formulations are being marketed by five companies. This outstanding publication details consideration of forage quantity and composition in choosing supplement types and amounts. Information was collected on 1719 steers and bulls on 28 sale days.
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The active ingredient, moxidectin, is the first of this chemical family used in livestock parasiticides. Cydectin is cleared for all ages and classes of cattle except lactating dairy cows. There is no slaughter withdrawal time and the product is oil based, so it can be applied under all weather conditions and is non-flammable. Control is provided for lungworm, brown stomach worm, scab and mange mite, biting and sucking lice, grub, and hornfly. The company guarantees 100 days of protection against disease caused by intestinal roundworm or lungworm and a 180-day lice control satisfaction guarantee.