Control the three thieves in poultry: large roundworms,
cecal worms and capillary worms

Hygromix is an in-feed medication for control of parasite infections in chickens associated with large roundworms (Ascaris galli*), cecal worms (Heterakis gallinae**) and capillary worms (Capillaria obsignata).

Internal parasite damage can be difficult to spot. But the "three thieves"—large roundworms, cecal worms and capillary worms—can cause serious economic losses as a result of inefficient growth, lack of uniformity and increased production costs. These parasites also can cause an unnecessary increase in feed costs and reduce egg production and quality.2

Control all three worms with one FDA-approved product

Early intervention is the key to efficiently controlling these internal parasites. By controlling poultry worms in layers, pullets and breeders, Hygromix helps protect Intestinal Integrity, uniformity and profitability. Hygromix is proven to work by breaking or interfering with the life cycle of the worm. Because Hygromix works as a control agent, it must be fed continuously to keep parasites at a manageable level.

Large Roundworm Lifecycle
The roundworm has a direct life cycle.2
  • Worm eggs pass from the chicken via feces, moving on to the litter where they embryonate—often within 5-10 days1
  • While all worm eggs are hardy, the roundworm eggs are particularly protected from the environment
  • The bird ingests the eggs, and they hatch in the proventriculus and duodenal loop; larvae then live free in the lumen for the first 9 days before penetrating the mucosa of the small intestine
  • Immature worms return to the lumen within 17 days; the worms reach maturity by 30 days of age
  • The prepatent period of the roundworm is 35-45 days
  • Confirmed diagnosis is made by visual examination of the worm in the small intestine
Cecal Worm Lifecycle
The cecal worm can have either a direct or indirect life cycle.
  • Worm eggs pass from the chicken via feces or cecal droppings, into the litter where they embryonate
  • Embryonation occurs within 12 days of the eggs being passed
  • Birds ingest the eggs; the eggs hatch in the upper small intestine and the larvae travel to the cecal pouches within 24 hours
  • Once in the ceca, the worms closely associate with the cecal tissue but do not invade the tissue (as traditionally seen with other worms)
  • The growing larvae may cause inflammation within the cecal wall2
  • Confirmed diagnosis is made by visual examination of the worm at the tips of the ceca
Capillaria Worm Lifecycle
The capillaria worm has a direct life cycle.2
  • Worm eggs pass from the chicken via feces, moving to the litter where they embryonate
  • Birds ingest the eggs and they hatch in the upper small intestine, particularly the duodenal loop
  • The worms then burrow deep into the mucosa of the small intestine, causing severe irritation and damage
  • The prepatent period of the capillaria worm is 21-28 days
  • The use of a worm screen with an intestinal scraping is often necessary to determine the presence and severity of the capillaria infection

Feeding directions and important safety information

The label contains complete use information, including cautions and warnings. Always read, understand and follow the label and use directions.

Feeding Directions

As an aid in the control of infections of large roundworms (Ascaris galli), cecal worms (Heterakis gallinae) and capillary worms (Capillaria obsignata) in chickens. Feed 8 to 12 g/ton of complete feed.


Important Safety Information


Feeds containing Hygromix must be withdrawn 3 days prior to slaughter.

* Otherwise known as Ascaridia galli

** Otherwise known as Heterakis gallinarum

1. Brewer, R. and Edgar, S. 1975. "Control of the Large Roundworm in Broilers." The Practicing Nutritionist. 9.3: 18-20.

2. Saif, Y. 2003. Diseases of Poultry 11th ed. 943-948.

USPBUHYG00029(2)

For Safety Data Sheet (SDS) contact 888-545-5973

Capillary worm screening

Discover how you can use Elanco's worm screening program in your flocks. Call 314-587-8355 to learn more about screening.

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