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Federal Register / Vol. 86, No. 200 / Wednesday, October 20, 2021 / Rules and Regulations
Monensin in grams/ton
Indications for use
Limitations
vi 15 to 400

Growing beef steers and heifers on pasture stocker, feeder, and slaughter or in a dry lot and replacement beef and dairy heifers: For increased rate of weight gain, and for prevention and control of coccidiosis due to Eimeria bovis and E. zuernii.

vii 25 to 400

Beef cows: For improved feed efficiency when receiving supplemental feed, and for the prevention and control of coccidiosis due to Eimeria bovis and E.
zuernii.

Sponsor
For increased rate of weight gain, feed at a rate of 50
to 200 milligrams monensin per head per day in not less than 1 pound of feed or, after the 5th day, feed at a rate of 400 milligrams per head per day every other day in not less than 2 pounds of feed. For prevention and control of coccidiosis, feed at a rate of 0.14 to 0.42 milligram per pound of body weight per day, depending on severity of challenge, up to 200 milligrams per head per day. During first 5 days of feeding, cattle should receive no more than 100
milligrams per day in not less than 1 pound of feed.
See special labeling considerations in paragraph d of this section.
Feed as supplemental feed, either hand-fed in a minimum of 1 pound of feed or mixed in a total ration.
For improved feed efficiency, feed continuously at a rate of 50 to 200 milligrams monensin per head per day. For prevention and control of coccidiosis, feed at a rate of 0.14 to 0.42 milligram per pound of body weight per day, depending upon severity of challenge, up to a maximum of 200 milligrams per head per day. During first 5 days of feeding, cattle should receive no more than 100 milligrams per head per day in not less than 1 pound of feed. See special labeling considerations in paragraph d of this section.

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Monensin amount i 150 milligrams per pound of protein-mineral block 0.033%.

ii 175 milligrams per pound of protein-mineral block 0.038%.

v 1,620 grams per ton of mineral granules as specified in paragraph f4vA of this section.

Indications for use
Limitations
Sponsor
Growing beef steers and heifers on pasture stocker, feeder, and slaughter and replacement beef heifers on pasture: For increased rate of weight gain, and for prevention and control of coccidiosis caused by Eimeria bovis and E. zuernii in pasture cattle which may require supplemental feed.
Growing beef steers and heifers on pasture stocker, feeder, and slaughter: For increased rate of weight gain.

Provide 50 to 200 milligrams of monensin 0.34 to 1.33 pounds of block per head per day, at least 1 block per 10 to 12 head of cattle. Roughage must be available at all times. Do not allow animals access to other protein blocks, salt or mineral, while being fed this product. See paragraph d10i of this section.
Provide 40 to 200 milligrams of monensin 0.25 to 1.13 pounds or 4 to 18 ounces of block per head per day, at least 1 block per 4 head of cattle. Do not allow cattle access to salt or mineral while being fed this product. Ingestion by cattle of monensin at levels of 600 milligrams per head per day and higher has been fatal. See paragraph d10i of this section.

Growing beef steers and heifers on pasture stocker, feeder, and slaughter or in a dry lot and replacement beef and dairy heifers: For increased rate of weight gain, and for prevention and control of coccidiosis due to Eimeria bovis and E.
zuernii.

Feed at a rate of 50 to 200 milligrams per head per 016592
day. During the first 5 days of feeding, cattle 058198
should receive no more than 100 milligrams per day. Do not feed additional salt or minerals. Do not mix with grain or other feeds. Monensin is toxic to cattle when consumed at higher than approved levels. Stressed and/or feedand/or water-deprived cattle should be adapted to the pasture and to unmedicated mineral supplement before using the monensin mineral supplement.

012286

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lotter on DSK11XQN23PROD with RULES1

A Specifications. Use as free-choice Type C medicated feed formulated as mineral granules as follows:
Ingredient
Percent
Monocalcium phosphate 21% phosphorus, 15% calcium
Sodium chloride salt
Dried cane molasses
Ground limestone 33% calcium or calcium carbonate 38% calcium

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International feed No.
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604152
404695
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