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CATTLYST® Type A Medicated Article

Rethink ionophores: Think CATTLYST for weight gain in feedlot cattle.

Cattlyst Bag

Ionophores are proven to improve cattle feed efficiency. But what if weight gain is just as important for your feedlot — and your profits? Then think about CATTLYST®

Unlike Rumensin®, CATTLYST:

  • Is labeled for boosting weight gain in confined feedlot cattle.
  • Requires no step-up program, eliminating the need for multiple starter rations.
  • Is approved for use with AUREOMYCIN®. When CATTLYST is fed in combination with AUREOMYCIN, a veterinary feed directive is required.
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  • Greater weight gain than Rumensin®

    A pooled analysis examined seven feedlot studies utilizing 10,526 animals. In the studies, the cattle were fed CATTLYST® with AUREOMYCIN® to control bovine respiratory disease. The cattle demonstrated:

    •        8.7 more pounds of hot carcass weight1
    •        15.3 more pounds live weight1
    •        0.62 pound greater feed intake per day1
    •        2.1% greater average daily gain (ADG)1

    Confirmed by extensive research

    A meta-analysis reviewed 17 data sets representing 13,603 steers. The data sets included cattle fed CATTLYST® with or without AUREOMYCIN® to control BRD, as well as cattle fed Rumensin® with or without Tylan®. The cattle receiving CATTLYST showed:

    •        11.82 more pounds of hot carcass weight2
    •        0.64 pound greater feed intake per day2
    •        0.11 pound greater ADG2

    Easy to implement into your ration

    Unlike Rumensin, which requires a step-up program, CATTLYST offers the convenience of a single dosing level from starter to finishing ration.

    When added alone to a ration, CATTLYST:

    •        Has a zero-day withdrawal to give producers marketing flexibility
    •        Does not require a veterinary feed directive (VFD)

    Approved to be fed with AUREOMYCIN

    This combination approval gives you the flexibility to:

    •        Treat and control bacterial pneumonia caused by Pasteurella species
    •        Treat bacterial enteritis caused by Escherichia coli
    •        Has a zero-day withdrawal when fed in combination
  • CATTLYST® is indicated for improved feed efficiency and increased rate of weight gain in cattle fed in confinement for slaughter. The product contains laidlomycin propionate potassium, at 50 grams per pound, in a carrier suitable for incorporation into feed.





    Feedlot cattle

    For increased weight gain and improved feed efficiency

    • 5 grams of CATTLYST per ton of total ration
    • To provide 30 to 75 mg/head/day

    For improved feed efficiency

    • 5 to 10 grams of CATTLYST per ton of total ration
    • To provide 30 to 150 mg/head/day
  • 1 Reinhardt C. The effects of Cattlyst + Aureomycin vs Rumensin + Tylan in finishing cattle on feedlot performance, carcass traits, and incidence of liver abscesses: a pooled analysis of seven studies. Data on file. Study Reports No. MC020-08-LOAU13, MC021-08-LOAU13, MC032-09-LOAUMO, MC030-09-LOAU13, MC031-09-LOAUMO, MC037-10-LOAUMO and MC028-09-LOAU13, Zoetis Services LLC.

    2 Cernicchiaro N, Corbin M, Quinn M, Prouty F, Branine M, Renter DG. Meta-analysis of the effects of laidlomycin propionate, fed alone or in combination with chlortetracycline, compared with monensin sodium, fed alone or in combination with tylosin, on growth performance, health, and carcass outcomes in finishing steers in North America. J Anim Sci. 2016;94(4):1662-1676.

Read all directions carefully before mixing and feeding. Do not feed undiluted. 

Do not allow horses or other equines access to feeds containing CATTLYST. Do not use in animals intended for breeding.

Do not use AUREOMYCIN in calves to be processed for veal.

Rumensin and Tylan are registered trademarks of Eli Lilly and Company, its subsidiaries or affiliates.



Ionophore for a Changing Feeding Industry

Combining with Aureomycin

Management Strategies with CATTLYST

Feed Efficiency and Gain



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