Sv: Svullen mage + skjuter rygg
For you to understand me correctly I'll answer in English as well.
You quote "until bot infection is shown NOT too cause internal damage their control should be considered in any parasite control." and that show exactly what we are trying to say. The best parasite control is to make sure the horse does not get infected = pick the eggs every day and the horse will not be infected.
The first step in parasite control is to make sure the horse does not get infested = no eggs = no infestation in the horse. Therefore you do the FEC, if it shows 0 no eggs are being shed and you do NOT need to deworm at the moment. The FEC is a part of a controlled method and is not intended to use once and think everything is good. Also it is important to know when to do the FEC and when to do a follow-up, also to interpret the results correctly.
In Sweden (that's where we are and the only place that is interesting to discuss here) we have true winters. The worms we need to worry about is mostly small strongyles, the ones that can lay in wait for many years and therefore is the most prone to develop resistance. Those we do FEC for before letting them out to grass where the infestation is. Deworming is to be done regularly through the summer with the ERP of the dewormer, for some horses we are talking 4-5 dewormings in a year.
Then we have tapeworms in some stables, not all. Those we address if necessary in the spring or fall. There is a study you can read on the subject of tapeworms in Sweden if you'd like, a study done on autopsied horses.
Then there are botfly larvae. Due to their lifecycle and they are to be dewormed against IF you are too lazy to clean the horse off every day for the week or two your area has them. In many areas there are no bots at all.
In the winter it is no use in deworming since the eggs falling on the ground will freeze and die, and if tests are negative the worms are in a hybernated stage and will not be reached with the dewormers, so no meaning to deworm. If you do anyway the larvae will get to "feel" the dewormer but do not enough to die so when they finally wake up they have a resistance to the dewormer you used.
30-40 years ago we used Axilur, Rintal and Banminth. Axilur and Rintal the small strongyles have a huge resistance agains, we don't use that anymore. Banminth is showing less effectiv in Norway as well in other countries further away, but Norway is close, we also import horses from all over the world. New from about that time was ivermectin. That is the newest dewormer that kills small strongyles. Moxidectin is from the same group (they act the same way) and instead of three groups of dewormers we now have one sure and one that can be useless any day now. The "new" dewormers you refer to are just new names of the same medicine. Ivermectin and moxidectin both kill botfly larvae from the moment the hatch on to the horses mouth, that means if you deworm your horse in the fall agains small strongyles or a combination that also gets tapeworms, you also get all the botfly larvae as well. The recommendation to wait until December is from before ivermectin, so maybe you should update your knowledge since just this part shows how little you actually know in the subject.
There is a website that looks like Buke, horsegroomingsupplies and com, there are some REALLY good parasite knowledge there and the language shouldn't be a problem.
20% of the horses carry 80% of the infestation. Find those 20% and you don't have a problem. The stables I've worked with on parasite control such as cleaning pastures, cutting down uneaten parts, letting other animals graze, doing regular FECs with follow-ups, deworming those who need to and so on, and in TWO YEARS, there is hardly any deworming needed and the horses are healthy.
For you to understand me correctly I'll answer in English as well.
You quote "until bot infection is shown NOT too cause internal damage their control should be considered in any parasite control." and that show exactly what we are trying to say. The best parasite control is to make sure the horse does not get infected = pick the eggs every day and the horse will not be infected.
The first step in parasite control is to make sure the horse does not get infested = no eggs = no infestation in the horse. Therefore you do the FEC, if it shows 0 no eggs are being shed and you do NOT need to deworm at the moment. The FEC is a part of a controlled method and is not intended to use once and think everything is good. Also it is important to know when to do the FEC and when to do a follow-up, also to interpret the results correctly.
In Sweden (that's where we are and the only place that is interesting to discuss here) we have true winters. The worms we need to worry about is mostly small strongyles, the ones that can lay in wait for many years and therefore is the most prone to develop resistance. Those we do FEC for before letting them out to grass where the infestation is. Deworming is to be done regularly through the summer with the ERP of the dewormer, for some horses we are talking 4-5 dewormings in a year.
Then we have tapeworms in some stables, not all. Those we address if necessary in the spring or fall. There is a study you can read on the subject of tapeworms in Sweden if you'd like, a study done on autopsied horses.
Then there are botfly larvae. Due to their lifecycle and they are to be dewormed against IF you are too lazy to clean the horse off every day for the week or two your area has them. In many areas there are no bots at all.
In the winter it is no use in deworming since the eggs falling on the ground will freeze and die, and if tests are negative the worms are in a hybernated stage and will not be reached with the dewormers, so no meaning to deworm. If you do anyway the larvae will get to "feel" the dewormer but do not enough to die so when they finally wake up they have a resistance to the dewormer you used.
30-40 years ago we used Axilur, Rintal and Banminth. Axilur and Rintal the small strongyles have a huge resistance agains, we don't use that anymore. Banminth is showing less effectiv in Norway as well in other countries further away, but Norway is close, we also import horses from all over the world. New from about that time was ivermectin. That is the newest dewormer that kills small strongyles. Moxidectin is from the same group (they act the same way) and instead of three groups of dewormers we now have one sure and one that can be useless any day now. The "new" dewormers you refer to are just new names of the same medicine. Ivermectin and moxidectin both kill botfly larvae from the moment the hatch on to the horses mouth, that means if you deworm your horse in the fall agains small strongyles or a combination that also gets tapeworms, you also get all the botfly larvae as well. The recommendation to wait until December is from before ivermectin, so maybe you should update your knowledge since just this part shows how little you actually know in the subject.
There is a website that looks like Buke, horsegroomingsupplies and com, there are some REALLY good parasite knowledge there and the language shouldn't be a problem.
20% of the horses carry 80% of the infestation. Find those 20% and you don't have a problem. The stables I've worked with on parasite control such as cleaning pastures, cutting down uneaten parts, letting other animals graze, doing regular FECs with follow-ups, deworming those who need to and so on, and in TWO YEARS, there is hardly any deworming needed and the horses are healthy.
