By the Numbers: Study Confirms Altosid® IGR Improves Weight Gain

Picture of a cow looking into the camera in a green pasture.
By the Numbers: Study Confirms Altosid® IGR Improves Weight Gain

A recent stocker cattle study was conducted in northeast Oklahoma to observe the effects of Altosid® IGR on horn fly control, cattle mineral consumption and weight gain.

Here is a breakdown of the study's findings, by the numbers:



The amount of blood meals a horn fly can take per day

$1 billion

How much money is lost due to horn flies throughout the industry every year


How many flies per side is considered to be the economic threshold for beef cattle


The number of days the OSU study was conducted

Results of Using Altosid® IGR


The number of weeks it took to dramatically reduce horn flies among cattle in the treated group


The amount the treated group was able to increase daily weight gains with Altosid® IGR (0.33 lbs.) as compared to the control group


The additional value of weight gain, per head, among cattle in the group treated with Altosid® IGR


The cost of Altosid® IGR per animal for 86 days (2.5 cents per day)


Potential return on investment for Altosid® IGR ($27.97:$2.15)

About Altosid® IGR


The year Altosid® IGR was introduced as the first feed-through insect growth regulator for cattle


The number of reported horn fly resistance cases among cattle treated with Altosid® IGR since its introduction Altosid® IGR is a feed-through fly control solution that passes through the digestive system and works in cattle manure where horn flies lay their eggs, limiting future fly populations. Unlike other feed-through products, Altosid® IGR is classified as an insect growth regulator (IGR). The active ingredient in Altosid® IGR mimics naturally occurring insect biochemicals that are responsible for insect development. By interrupting the fly's life cycle, Altosid® IGR Feed-Thru keeps the horn fly larvae from developing into breeding, biting adult flies.

Read the complete OSU Case Study.

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