Skycis® (Narasin)
Skycis® (Narasin)
Skycis® is the only ionophore available to U.S. pork producers.
Pack Size:
25 kg
For increased rate of weight gain in growing-finishing swine when fed for at least 4 weeks at 13.6, 18.1 or 27.2 grams per ton.
For increased rate of weight gain and improved feed efficiency in growing-finishing swine when fed for at least 4 weeks at 18.1 or 27.2 grams per ton.
Flexibility in Finishing
- Efficiency.
- Performance.
- Profitability.
Manage Performance for Profitability
The active ingredient, narasin, balances digestive system bacteria to deliver consistent growth and performance in growing and finishing pigs. Skycis drives weight gain and feed efficiency by improving feed utilization and increasing energy availability.1
For increased weight gain and improved feed efficiency, feed for at least 4 weeks at 18.1 to 27.2 grams/ton.
Skycis Trial Results
Effects of Skycis Extended (>65 days) feeding on the performance of finishing pigs. In a Skycis literature review, all relevant studies in which narasin was fed to finishing pigs were collected and summarized to construct a mathematical model to predict expected performance responses.1

Body Weight Improvement

Average Daily Gain

Feed:Gain

Carcass Yield

Managing Weight Variation
Weight variation impacts profitability. Returns will start to decrease due to poor feed efficiency or packer discounts. Reducing variation targets a more profitable weight for the entire population.
After 90 days vs. start weight2

Weight Distribution Model
Operational choices should be selected that minimize distribution and maximize the return where the majority of the pigs land on the grid.
Marketed hogs – typical vs. ideal state

Maximize your Performance
- Skycis is the only ionophore available in the U.S. and is indicated for increased weight gain and improved feed efficiency in growing-finishing swine when fed for at least four weeks at 18.1 to 27.2 grams per ton.
- When maximum weight is needed quickly to meet space requirements, contract timing or other market influences, Skycis helps to maximize feed efficiency, increase weight gain and increase carcass weight and yield when fed according to the label.1
The label contains complete use information, including cautions and warnings. Always read, follow and understand the label and use directions.
INDICATION:
- For increased rate of weight gain in growing-finishing swine when fed for at least 4 weeks.
- For increased rate of weight gain and improved feed efficiency in growing-finishing swine when fed for at least 4 weeks.
DIRECTIONS FOR USE:
- For increased rate of weight gain in growing-finishing swine when fed for at least 4 weeks:
- Feed 13.6 to 27.2 g/ton (15 ppm to 30 ppm) in a Type C Medicated feed.
- For increased rate of weight gain and improved feed efficiency in growing-finishing swine when fed for at least 4 weeks:
- Feed 18.1 to 27.2 g/ton (20 ppm to 30 ppm) in a Type C Medicated feed.
- No increased benefit in rate of weight gain has been shown when narasin concentrations in the diet are greater than 15 ppm (13.6 g/ton).
IMPORTANT SAFETY INFORMATION
CAUTION:
- Do not allow adult turkeys, horses or other equines access to narasin formulations. Ingestion of narasin by these species has been fatal. Not approved for use in breeding animals because safety and effectiveness have not been evaluated in these animals.
- Swine being fed with Skycis (narasin) should not have access to feeds containing pleuromutilins (e.g. tiamulin) as adverse reactions may occur. If signs of toxicity occur, discontinue use.
WARNING: No withdrawal period is required when used according to the label.
- Store at or below 25° C (77° F). Excursions permitted to 37° C (99° F)
Communicate Skycis inclusions in feed to the full production system prior to use. Proper training, formulations, mixing and concentration levels are important to successfully implement Skycis.