Parasites

A Decision Making Support Tool Now Available

Rory Lewandowski, OSU Extension Educator ANR, Wayne County

Sorting through the information on sheep and goat parasite control: A decision making support tool is now available.

Farmers confronted with parasite infections in their sheep and goats soon realize there is no “magic bullet” or “one size fits all” solution. They can be quickly bombarded with a lot of information available on internal parasite control but with no help in sorting out which options they should consider in their farming operation.

OSU Extension personnel have developed a decision making support tool for farmers to develop Continue reading A Decision Making Support Tool Now Available →

Use FAMACHA Correctly for Best Results

Rory Lewandowski, OSU Extension Educator ANR, Wayne County

An important component of summer management is internal parasite control.  By this point in the calendar year sheep, and/or goats on many farms have rotated through pasture paddocks at least a couple of times. Lactating ewes and does can shed large numbers of parasite eggs, effectively seeding pasture paddocks with parasite larvae that are waiting to be ingested with the next grazing pass.  As young lambs and kids learn to graze at the side of their mothers, they are very susceptible to acquiring large parasite infections. However, parasite loads are not equally distributed within the herd or flock.

Over the past several years targeted selective de-worming treatment of sheep and goats has been promoted as one way to avoid treating the entire flock or herd. Selective treatment can slow down the process of the parasite acquiring chemical resistance and thereby prolong the effectiveness of those chemical de-wormers available to sheep and goat owners. One tool that is being used to determine selective treatment is the FAMACHA system. Continue reading Use FAMACHA Correctly for Best Results →

Use FAMACHA Correctly

Rory Lewandowski, OSU Extension Educator, Athens County

A number of sheep and goat owners have been trained across Ohio in the use of the FAMACHA system, yet problems with internal parasites, in particular, with Haemonchus contortus continue. This is to be expected. The FAMACHA system utilizes an eyelid scorecard that can help a farmer make a decision to treat or not to treat the animal with a chemical de-wormer. The FAMACHA system is not a cure-all, or a silver bullet for dealing with internal parasites. It is one tool that can be a part of an overall parasite control strategy. In order for this tool to be effective Continue reading Use FAMACHA Correctly →

Pasture, Parasites, and Risk Management

Rory Lewandowski, OSU Extension Educator, Athens County

May through early June is generally a time of good pasture growth and corresponding livestock production. However, if you are grazing sheep and goats this is the time of year that needs careful consideration in regards to internal parasites, in particular Haemonchus contortus, the barber pole worm. One way to approach this grazing season is to think in terms of risk management.

What can be done to reduce or minimize the risk of a heavy parasite infection while sheep and goats graze pastures? Continue reading Pasture, Parasites, and Risk Management →

Parasite Management for Small Ruminants Begins… in the Fall?

Rory Lewandowski, OSU Extension Educator, Athens County

The biggest enemy of pasture based sheep and goat production has got to be internal parasites and especially, Haemonchus contortus, or the barber pole worm.  Its incredible reproductive capacity, an adult female can lay up to 5,000-10,000 eggs/day, combined with the fact that the infective third stage (L3) larvae can survive 60 to 90 days or more on pasture during Continue reading Parasite Management for Small Ruminants Begins… in the Fall? →

Monitor Lamb/Kid Worm Burden

Rory Lewandowski, OSU Extension Educator, Athens County

July through September are critical times to closely monitor the internal parasite burden of lambs and kids. Preferably monitoring would start in June. The internal parasite of principal concern during the summer months is Haemonchus contortus, the barber pole worm. Lambs and kids grazing on pastures that are contaminated with large numbers of infective Haemonchus contortus larvae can go downhill very rapidly in July and August. It would not be uncommon that within a 7-10 day period Continue reading Monitor Lamb/Kid Worm Burden →

Summer Parasite Management

Rory Lewandowski, OSU Extension Educator, Athens County

July and August are critical months to control the internal parasite, Haemonchus contortus in pasture based sheep and goat production. Often producers may find that lambs and kids seem to “stand still” during the summer, with little or no weight gain. There can be several reasons for this situation. Continue reading Summer Parasite Management →