Mixing Directions—Swine
Stafac 500 Type A Medicated Article must be thoroughly mixed in the feed to assure even distribution. Determine the appropriate amount of Stafac 500 required from the table below. Dilute Stafac 500 with a portion of one of the feed ingredients (enough to make a quantity equal to 10 lb per ton) before final mixing.
Swine
Required level of virginiamycin activity per ton of Type C Medicated Feed (complete feed)
Required amount of Stafac 500 per ton of Type C Medicated Feed (complete feed)
Amount of virginiamycin activity provided to animal per lb of body weight per day
Continuous Feed Programs From Weaning to Market Weight Weaning to 120 lb
Increased rate of weight gain and improved feed efficiency
10 g
20 g
120 lb to market weight
Increased rate of weight gain
5-10 g
10-20 g
Improved feed efficiency
5 g
10 g
Treatment of swine dysentery in nonbreeding swine weighing over 120 lb
100 g for 2 weeks
200 g
2.27 mg
Treatment and control of swine dysentery in swine weighing up to 120 lb
100 g for 2 weeks
followed by 50 g
200 g
100 g
2.27 mg
1.14 mg
Aid in control of swine dysentery in swine weighing up to 120 lb
For use in animals or on premises with a history of swine dysentery but where symptoms have not yet occurred
25 g
50 g
0.57 mg
►Caution: Not for use in breeding swine over 120 pounds.◄
Mixing Directions—Poultry
Mix 100 g Stafac 500 with enough of one of the feed ingredients to make 10 lb of an intermediate mix. Add 1 lb of the intermediate mix for each 5 g of virginiamycin needed to medicate a ton of feed.
Poultry
Required level of virginiamycin activity per ton of Type C Medicated Feed (complete feed)
Required amount of Stafac 500 per ton of Type C Medicated Feed (complete feed)
For use in broiler chickens
Increased rate of weight gain
5-15 g
10-30 g
Improved feed efficiency
5 g
10 g
Prevention of necrotic enteritis caused by Clostridium perfringens susceptible to virginiamycin
20 g
40 g
Not for Use in Laying Chickens
For use in growing turkeys
Increased rate of weight gain and improved feed efficiency
10-20 g
20-40 g
Feed Continuously as Sole Ration