Complete Up To Date Information about Bovatec / MGA 500.
NADA Number: 140-288 | |
| Proprietary Name |
Bovatec® / MGA® 500 |
|---|---|
| Sponsor |
Pharmacia & Upjohn Co. |
| Sponsor Address |
a Division of Pfizer, Inc. 235 East 42nd St. New York, NY 10017 USA |
| Ingredients |
Lasalocid Melengestrol Acetate |
| Species |
Cattle, beef, heifers |
| Routes of Administration |
Per Os |
| Dose Form |
Medicated feed |
| Drug Form |
Type A Medicated Article |
| Dispensing Status |
OTC |
|
Dosage Amount, Indications & Limitations |
558.342 Melengestrol acetate. Specifications: Liquid Type A article containing 500 milligrams per pound. Conditions of use: Cattle (heifers) Amount: Melengestrol acetate, 0.25 to 0.50 milligram per head per day in combination with lasalocid (as lasalocid sodium), 100 to 360 milligrams per head per day. To attain this amount: Add at the rate of 0.5 to 2.0 pounds per head a medicated feed (liquid) containing 0.125 to 1.0 milligram of melengestrol acetate per pound to a feed containing 10 to 30 grams of lasalocid per ton; or, Add at the rate of 0.5 to 2.0 pounds per head per day a medicated feed (liquid or dry) containing 0.125 to 1.0 milligram of melengestrol acetate plus 50 to 720 milligrams of lasalocid per pound to a ration of non-medicated feed to provide 0.25 to 0.5 milligram of melengestrol acetate and 100 to 360 milligrams of lasalocid per head per day. Indications: For increased rate of weight gain improved feed efficiency, and suppression of estrus (heat). Limitations. For heifers being fed in confinement for slaughter. |
| Tolerances |
Tolerances for lasolocid residues are established as follows: 1. Cattle: The tolerance for parent lasalocid (the marker residue) in liver (the target tissue) is 0.7 part per million 2. Chickens: (I) Skin with adhering fat (the target tissue). The tolerance for parent lasalocid (the marker residue) is 1.2 parts per million. (ii) Liver. The tolerance for parent lasalocid (the marker residue) is 0.4 part per million. 3. Turkeys: (I) Skin with adhering fat (the target tissue). The tolerance for parent lasalocid (the marker residue) is .4 part per million. (ii) Liver. The tolerance for parent lasalocid (the marker residue) is 0.4 part per million. 4. Rabbits: The tolerance for parent lasalocid (the marker residue) in liver (the target tissue) is 0.7 part per million. 5. Sheep: The tolerance for parent lasalocid (the marker residue) in liver (the target tissue) is 1.0 part per million A tolerance of 25 parts per billion is established for residues of the parent compound, melengestrol acetate, in fat, of cattle. |