Zesterra's® all-natural formula is highly palatable and created from the highest-quality ingredients. Explore below to learn more about how it can help your horses thrive.

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Zesterra® Lick Tubs & Minerals

Equine Special by Pro Earth Animal Health offers the best of both worlds! An easy-to-use, balanced mineral supplement and all of the benefits of Zesterra®.

Pro Earth Equine 13% is a free-choice cooked molasses equine supplement suitable for horses of all ages fed moderate to high-quality forages. Incredibly palatable, this tub is highly fortified with premium vitamins and trace minerals to assist in your horses’ optimum daily mineral needs. This tub is formulated with Zesterra®, a 100% natural product designed to encourage feed and water consumption in times of stress.

Why use Zesterra® Lick Tubs?

Zesterra® has been proven to neutralize excess stomach acid, improve water consumption, increase feed utilization and prevent certain diseases thanks to an all-natural formula designed to reduce stress in horses.

Zesterra® Lick Tub Formulations

Click on the images below to view the specifications and guaranteed analysis for each tub.

Equine Special with Added Zesterra®

Guaranteed Analysis

  • Crude Protein (min) ——– 15.0%
  • Crude Fat (min) ————- 2.0%
  • Crude Fiber (min) ———– 3.0%
  • Calcium (min) ————— 6.0%
  • Calcium (max) ————— 7.0%
  • Phosphorus (min) ———– 6.0%
  • Salt (min) ——————– 6.0%
  • Salt (max) ——————– 7.0%
  • Sodium (min) —————- 4.0%
  • Sodium (max) —————- 5.0%
  • Biotin (min) —————— 50 ppm
  • Vitamin A (min) ————- 102,000 IU/lb
  • Vitamin E (min) ————- 150 IU/lb
  • Vitamin D (min) ————- 12,600 IU/lb


Calcium Carbonate, Monocalcium, Phosphate, Magnesium Oxide, Salt, Soybean Meal, Alfalfa Meal, Sodium Bicarbonate, Biotin, Copper Sulfate, Fish Meal, Lysine, Molasses, Red Iron Oxide, Rice Bran, Sugar Beet Pilp, Zesterra® (Corn Oil, Glycerin, Onion Extract, Orange Oil Extract, Guar Gum, Soybean Oil, Vegetable Oil, Mineral Water), Sulfur, Vitamin A Supplement, Vitamin E Supplement, Zinc Sulfate, Ground Corn, Aspergillus Orzaye, Choline Chloride, Cobalt Sulfate, Vitamin D Supplement, Iodine, Manganous Oxide, Niacin, Panothenic Acid, Riboflavin, Sodium Bentonite, Vitamin B Supplement and Zinc Oxide.

Pro Earth Equine 13%

Guaranteed Analysis

  • Crude Protein (min) ——– 13.0%
  • Crude Fat (min) ————- 1.5%
  • Crude Fiber (min) ———– 1.5%
  • ADF (max) ——————- 3.0%
  • NDF (max) ——————- 5.0%
  • Calcium (Ca) (min) ———- 3.0%
  • Calcium (Ca) (max) ———- 4.0%
  • Phosphorus (P) (min) ——– 0.8%
  • Magnesium (Mg) (min) —— 0.8%
  • Potassium (K) (min) ———- 1.3%
  • Zinc (Zn)(min) —————- 880 ppm
  • Manganese (Mn) (min) —— 870 ppm
  • Copper (Cu) (min) ———— 420 ppm
  • Iodine (I) (min) —————– 80 ppm
  • Cobalt (Co) (min) ————— 20 ppm
  • Selenium (Se) (min) ————- 4 ppm
  • Vitamin A (min) ————— 86,000 IU/lb
  • Vitamin D 3 (min) ————- 62,000 IU/lb


Molasses products, Calcium Carbonate, Magnesium Oxide, Monocalcium Phosphate, Soybean Meal, Biotin, Colloidal Silver, Corn Oil, Soybean Oil, Glycerin, Vegetable Oil, Natural Apple Flavoring, Copper Sulfate, Lysine, Molasses, Sodium Selenite, Vitamin A Supplement, Vitamin D Supplement, Vitamin E Supplement, Zinc Sulfate, Magnesium Mica, Plant Protein By-Products, Guar Gum, Orange Extract (for flavor), Onion Extract (for flavor), Sodium Bentonite, Yeasts, Mineral Oil, Niacin, Kelp, Natural Flavoring Agents, Processed Grain By-Product, Sodium Silico Aluminate, Dried Aspergillus Oryzae Fermentation Extract, Choline Chloride, Cobalt Sulfate, Ethylenediamine Dihydriodide, Manganous Oxide, Pantothenic Acid, Riboflavin, Vitamin B Supplement, Zinc Oxide, and Corn Distillers Dried Grains with Solubles.

Feeding Recommendations:

Initially place tubs where horses can easily access the area based on routine routes. Avoid placing tubs on hillsides and gullies. Subsequent tub placemetns should be in areas where horses wil effectively graze available forage. Feed at the rate of one 125 lb. tub for every 1-15 head. Intake may vary due to pasture conditions and availability of other feed sources. Approximate consumption should be ~0.25 – 1.0lb/head/day. Provide plenty of clean, fresh water and salt at all times.

Caution: Due to high Copper content, do not feed to sheep or other unapproved livestock. This product was made in a feed manufacturing facility that does not handle or store products containing animal proteins prohibited in ruminant feed.

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