Owner of 4 yr old Palomino has several questions

I have a couple of questions that I am hoping you can help me with please. Briefly, I am the owner of a 4 year old palomino quarter horse (mare) and I reside in Florida.I have a couple of questions that I am hoping you can help me with please. Briefly, I am the owner of a 4 year old palomino quarter horse (mare) and I reside in Florida.

Story originally posted by: Michael Lowder, DVM, MSUniv. of GA School of Veterinary Medicine

Dear Doc Lowder:

I have a couple of questions that I am hoping you can help me with please. Briefly, I am the owner of a 4 year old palomino quarter horse (mare) and I reside in Florida.

Worming – I am very confused with a couple of things as everyone seems to have a different opinion that I speak with. Should a horse be wormed every 2 or 3 months? or does that depend on what wormer you use? Also, could you make a suggestion as to what wormers should be used at what times of the year? Do horse really become immune to a specific wormer after time? I am currently boarding my horse and it seems that the same wormer is used time after time. I am going to be moving my horse "Katie" to my own property and this question has been bugging me for some time. I was planning on using the rotectin 1 & 2 but now I am wondering whether this is a good choice? It is a little embarrassing to admit that you don’t know what you are doing but I really would appreciate any assistance you can offer. I care about my horse very much and want to make sure that I am worming correctly.

Another question is regarding EWT. The manager at my boarding stable has always given the vaccine EWT twice a year and Flu/Rhino once. Now it appears after she spoke with our local vet that it should have been the other way around. She has since decided to use the all in one vaccine EWT+Flu/Rhino twice a year. Help please!

Finally, palomino horses seem to have very sensitive skin, however "Katie" seems particularly bad in that department. She has periods where she gets scabs on areas of her body, the hair thins, sometimes comes out etc. I have been told that it could be rainrot or some other dermatitis, lets face it should could be bothered by the dirt, bugs or many things. Right now she has a large patch that runs over her back area. I am doing what I can to remove the scabs and bath her scrubbing really good (weather permitting). I have tried many products for her condition but few seem to help. I have been applying calm coat which seems to work the best so far. I have also disinfected her brushes and will give her a clean saddle pad. Is there anything else that I can try? It is obviously very uncomfortable to her when I stand there picking at her!

I would sincerely appreciate any assistance that you can offer.

Thank you

Toni Hammond

Toni,

First, thank you for contacting HorseCity.Com. Before you decide how often a horse should be dewormed you should have a fecal egg count performed on your horse. This will provide you with the most useful information. Once you know the concentration of parasite eggs then you can determine how effective your parasite control methods are working and what dewormer you might need to use. Your vet can help with this. There is little data that I know of that has shown dewormer resistance by parasites. Again, once you know what your horse is infected with then you can deworm against that specific specie(s) of parasite(s). In general, yes it is best to rotate dewormers every few months.

Second, there is nothing wrong with using the EWT+Flu/Rhino twice a year. In horses that have frequent contact with other outside horses you might consider using the flu/rhino four times a year. Now remember if you are using a killed vaccine you will have to give it more often and a modified-live vaccine less often. Your vet can help you design a program that is specific for you.

In regards to your Palomino horse it is hard to determine the cause of a skin disease without performing a physical examine. See about getting some help from your local vet. If you still can’t get a solution then asked to be referred to a dermatology.

Thanks,
Dr. Lowder