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The frequency for deworming horses depends on their age, their environment and their own natural resistant to parasites.
Horses under 18 months of age need to be dewormed frequently because they are more susceptible to parasites, the parasites have different life cycles and because parasites have been developing resistance to the commonly used deworming drugs. This means that in order to treat all the likely parasites infecting young horses, different dewormers need to be used at different times to effectively control infections.
Adult horses tend to be more resistant to parasites and 50% or more of adults require deworming only twice a year (spring and fall), for small strongyles, bots and tapeworms as well as less common parasites in certain situations. Other adult horses do not develop as strong an immunity and may need to be dewormed 3-4 times a year.
Some environments and management practices also help to reduce the chances of reinfection with parasites. Very hot (over 85 degrees Fahrenheit ), dry climates reduce the survival time of infective small strongyle larva in the environment. Stalls are also poor environments for parasites and horses kept in stall are less likely to be reinfected. Removing feces from paddocks/pastures at least every other day reduces the number of parasite eggs and larva in pastures, thus reducing reinfection risks. Rotating horses off of pastures for 6 months or more also reduces reinfection risks for small strongyles because infective larval stages don't survive indefinitely.
Ascarids are the exception to hot, dry environmental conditions and time significantly reducing reinfection. Ascarid eggs can survive for 10 years or more in the environment and area concern for young horses and very old horses.
Horse owners need to base deworming decisions off of the results of fecal egg counts, environmental conditions, horse age and seasonal parasite risks. It is also important to know what deworming products are effective against what parasites and what products have resistance issues in a particular area. An equine veterinarian should be consulted to assess each horse and determine an appropriate deworming regimen.
What else can I help you with?
Do guys like when you give them head twice in a row?
Depends on the guy. Many guys love it.
Can you skip someone twice in a row in Phase 10?
No, you cannot skip someone twice in a row in Phase 10.
Have Kerry won 5 all irelands in a row?
No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.No. They have won 4 in a row twice:1929, 1930, 1931, 1932.1978, 1979, 1980, 1981.
A President that was President twice but not in a row?
Grover Cleveland.
How many did Jordan win in a row championship?
3 in a row twice...91,92, and 93 also 96,97,98
Why do the rows double in the pascal's triangle when you add them up?
Each element of a row of pascal's triangle is the sum of the two elements above it. Therefore when you some the elements of a row, each of the elements of the row above are being summed twice. Thus the sum of each row of pascal's triangle is twice the sum of the previous row.
What happens if the same player hits twice in a row in valleyball?
no such answer
Can a king jump twice in a row?
no it cant but if you do it in 2 turns it can
What is it called when using the same word twice in a row?
Repetition of a word twice in a row is known as epizeuxis. This rhetorical device is often used to create emphasis or to evoke strong emotion.
Did any team win the champions team twice in a row?
It is Real Madrid they have won it five years in a row.
What r the odds of roll a 2 twice in a row on one dice?
Rolling 2 twice in a row in the first two rolls is 1/6*1/6 = 1/36. But rolling 2 twice eventually is as close to certainty as you can get.
What is wrong with the phrase is is that?
You should only use "is" once, not twice in a row.
