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MGA 200

This page contains information on MGA 200 for veterinary use.
The information provided typically includes the following:
  • MGA 200 Indications
  • Warnings and cautions for MGA 200
  • Direction and dosage information for MGA 200

MGA 200

This treatment applies to the following species:
Manufacturer: Zoetis

(melengestrol acetate Type A medicated article)

Heifers Fed in Confinement for Slaughter: For Increased Rate of Weight Gain, Improved Feed Efficiency and Suppression of Estrus (Heat).

Heifers Intended for Breeding: For Suppression of Estrus (Heat).

Each pound contains:

Active Drug Ingredient:

Melengestrol Acetate

200 mg

Inactive Ingredients

Soybean hulls, #20 grind

96.0%

Starch

2.98%

Mineral Oil

1.0%

Store in a Dry Place to Prevent Caking.

Store below 25°C (77°F), excursions permitted to 40°C (104°F).

Use only as directed. Excessive contact with skin should be avoided. Destroy empty container. Do not reuse.

MGA 200 Caution

For manufacturing, processing or repacking. To be mixed with feed prior to animal use.

NADA 39-402, Approved by FDA

Directions For Use

Heifers Fed in Confinement for Slaughter: MGA 200 (melengestrol acetate Type A medicated article) should be thoroughly mixed in the supplement to provide 0.25 to 0.50 mg of melengestrol acetate per head per day. Average daily intakes approximating the middle of this range provide the most optimal and economical improvements in rate of gain and feed utilization. Constant daily intakes of 0.35 to 0.50 mg per head per day give a high degree of estrus suppression. Levels of 0.25 to 0.35 mg provide a lower but still effective degree of estrus suppression.

Heifers Intended for Breeding: MGA 200 should be thoroughly mixed in the supplement to provide 0.5 mg of melengestrol acetate per head per day.

NOT FOR HUMAN USE.

CAUTION: Not effective in steers and spayed heifers.

Heifers Fed in Confinement for Slaughter:

Withdrawal periods of three to five days or more should be avoided to prevent the possibility that the heifers may come into estrus (heat) at loading time.

Heifers Intended for Breeding:

Do not exceed 24 days of feeding of melengestrol acetate to heifers intended for breeding. A reduced conception rate can be expected if heifers are bred at estruses observed within 1 to 12 days after withdrawal of melengestrol acetate, whereas heifers bred at subsequent observed estruses are expected to have normal conception rates.

Mixing Directions

Thoroughly mix 1.25 to 10 pounds of MGA 200 per ton of non-medicated feed to prepare a Type C medicated feed containing 0.25 to 2.0 grams of melengestrol acetate per ton. The following Table may be used as a guide in determining the amount of MGA 200 to be added to prepare a ton of Type C medicated feed.

Amount of Type C Feed Fed (lb/head/day)

Melengestrol Acetate
(mg/head/day)

Pounds MGA 200 per Ton of Type C Feed

0.5

0.25

5.00

0.5

0.30

6.00

0.5

0.35

7.00

0.5

0.40

8.00

0.5

0.45

9.00

0.5

0.50

10.00

1.0

0.25

2.50

1.0

0.30

3.00

1.0

0.35

3.50

1.0

0.40

4.00

1.0

0.45

4.50

1.0

0.50

5.00

1.5

0.25

1.67

1.5

0.30

2.00

1.5

0.35

2.33

1.5

0.40

2.67

1.5

0.45

3.00

1.5

0.50

3.33

2.0

0.25

1.25

2.0

0.30

1.50

2.0

0.35

1.75

2.0

0.40

2.00

2.0

0.45

2.25

2.0

0.50

2.50

Type B medicated feeds containing 4 to 10 grams melengestrol acetate per ton may be manufactured by thoroughly mixing 20 to 50 lbs of MGA 200 with 1980 to 1950 lbs of non-medicated feed. Labeling for such Type B feeds shall contain directions for manufacturing Type C medicated feeds containing 0.25 to 2.0 grams melengestrol acetate per ton (0.125-1.0 mg/lb). The Type C medicated feed, containing melengestrol acetate, must be top dressed on grain or roughage or mixed with a complete ration at the rate of 0.5 to 2.0 pounds per head per day.

Good manufacturing practice regulations must be adhered to in manufacturing feeds containing MGA 200.

Restricted Drug (California)-Use Only as Directed

Made in USA

Distributed by: Zoetis Inc., Kalamazoo, MI 49007

Net Weight

 

50 Lb (22.7 kg)

10707304

NAC No.: 3690477.1

ZOETIS INC.
333 PORTAGE STREET, KALAMAZOO, MI, 49007
Telephone:   269-359-4414
Customer Service:   888-963-8471
Website:   www.zoetis.com
Every effort has been made to ensure the accuracy of the MGA 200 information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the US product label or package insert.

Copyright © 2016 North American Compendiums. Updated: 2016-08-21

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