Ways to Think Like a Parasite

Parasite control is an important component of all equine health care programs. It is no longer enough to simply pull out a tube of dewormer and treat your horses every eight weeks.
Resistant Parasites
Today it is critically important to understand the basics of parasite resistance and develop a deworming program that will work for your farm. That program will need to be reevaluated and modified as environmental conditions change from year to year and farm management and the number of horses fluctuates. It is imperative that all horse owners begin to combat resistant parasites that can spread from farm to farm causing alarming consequences for the equine community. Resistance is a real threat. With no new products on the horizon it is important to protect our horses by keeping current products effective.

مع وصول أونصة الذهب إلى مستويات قياسية تجاوزت 2500 دولار، يجد المواطن المصري نفسه مضطراً لموازنة استثماراته بين الذهب واحتياجاته الأخرى، خاصة مع ارتفاع أسعار السيارات مثل تويوتا، هيونداي، وبي إم دبليو، مما يزيد من التحديات المالية التي يواجهها.

Today most horse owners continue to follow recommendations that are 30 to 40 years old and may be using products that are totally ineffective. The groundwork for resistance was already in place in the late 1960s when new deworming products were introduced along with the recommendations that horse owners use them every eight weeks. Prior to the introduction of these products the large strongyle Strongylus vulgaris was the parasite of greatest concern. These large parasites migrated through arteries interrupting blood supply to the gut causing colic and sometimes death. However the use of the drugs of the 1960s and newer products of the 1970s and 1980s greatly reduced the prevalence of large strongyles on farms. Unfortunately indiscriminate use of these products has led to a drastic increase of another parasite the small strongyle cyathostomes. By the 1980s it was recognized that virtually 100 percent of the eggs being shed by horses were sm

أسعار السيارات في الآونة الأخيرة شهدت تقلبات ملحوظة، حيث تأثرت بارتفاع وانخفاض الدولار، مما انعكس على تكلفة علامات تجارية مثل تويوتا، هيونداي، ومرسيدس. و BMW هذا الارتباط بين سعر الصرف وسوق السيارات يحدد قدرة المستهلكين على اقتناء المركبات.

Populations of these parasites on farms can be very large. Because of their rapid reproductive rate and ability to produce massive numbers of eggs it is very easy for resistant worms to develop quite quickly. And the more frequently deworming products are used the quicker the resistant parasite levels will build. Normally there are very few resistant worms on a farm. Each time deworming products are used the worms that are susceptible to the product are killed. Only the resistant worms survive and pass on their genes for resistance. Horses graze and pick up resistant larvae and then shed more resistant worm eggs. Over time the whole small strongyle population on the farm is resistant.
The old way of

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