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Health & Nutrition
Double Deworming after wet season
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<blockquote data-quote="JW IN VA" data-source="post: 1587211" data-attributes="member: 21289"><p>I have for some time believed in rotating not just brands but classes of dewormers.Recently I've read about people using the two types at the same time but wasn't going to because of the theory"What do you do when you develop an immunity to both types?"</p><p> This spring,when I had the vet out to do preg checks,I asked her opinion.She recommended that for this year I might want to do just that.After the year we had with poor condition cows and a lot of rain,the worm load would probably be excessive.I took her advice and used Dectomax injectable and Synanthic drench on all my cows and yearlings prior to turn out.Cattle a re doing good and shedded of well except for some of the yearlings which will get another round soon.</p><p> For those unfamiliar with dewormer classes,there are two basic classes used now.The avermectins,Ivomec,Dectomax and Cynanthic plus the "white wormers" in drench or paste like Panacur/Safeguard,Synanthic and Valbazen.I used to think I was doing right by using an avermectin one time then a drench the next but now think maybe should stick to one class for several cycles then switch to the other.Hopefully LuckyP or someone like him will be along to give a better answer.</p><p> One thing I think has led to some ivermectin resistance is the use of pour ons.If they are done carefully and the weather window is observed,they may do a lot of good especially for those who lack the time or help to catch them individually.If, however, they are "shot at" or it rains then the dose might be too low to kill well.</p><p> I'm blessed to have a several pens where I can get up close or load them and haul home to the main pens plus my grandsons are getting big enough and want to help work with the cattle.Just the other day,we were treating some Pinkeye cases I hauled home.The youngest on was filling syringes and I showed the oldest where to give the injection then told him to go ahead.Proud of both of them.</p></blockquote><p></p>
[QUOTE="JW IN VA, post: 1587211, member: 21289"] I have for some time believed in rotating not just brands but classes of dewormers.Recently I've read about people using the two types at the same time but wasn't going to because of the theory"What do you do when you develop an immunity to both types?" This spring,when I had the vet out to do preg checks,I asked her opinion.She recommended that for this year I might want to do just that.After the year we had with poor condition cows and a lot of rain,the worm load would probably be excessive.I took her advice and used Dectomax injectable and Synanthic drench on all my cows and yearlings prior to turn out.Cattle a re doing good and shedded of well except for some of the yearlings which will get another round soon. For those unfamiliar with dewormer classes,there are two basic classes used now.The avermectins,Ivomec,Dectomax and Cynanthic plus the "white wormers" in drench or paste like Panacur/Safeguard,Synanthic and Valbazen.I used to think I was doing right by using an avermectin one time then a drench the next but now think maybe should stick to one class for several cycles then switch to the other.Hopefully LuckyP or someone like him will be along to give a better answer. One thing I think has led to some ivermectin resistance is the use of pour ons.If they are done carefully and the weather window is observed,they may do a lot of good especially for those who lack the time or help to catch them individually.If, however, they are "shot at" or it rains then the dose might be too low to kill well. I'm blessed to have a several pens where I can get up close or load them and haul home to the main pens plus my grandsons are getting big enough and want to help work with the cattle.Just the other day,we were treating some Pinkeye cases I hauled home.The youngest on was filling syringes and I showed the oldest where to give the injection then told him to go ahead.Proud of both of them. [/QUOTE]
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Double Deworming after wet season
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