Identify spots

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slick4591

slick4591

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Mar 31, 2011
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Farmersville, Texas
A few weeks back I took two cows w/calves to my AI tech and left them. When I picked them up I noticed the cows had some spots on the inside of their legs, but the calves were clean. I just figured that it was ringworm and went on. I already had the calves sold and while one didn't have any spots the other developed three on its body. I told the buyers about them when they picked them up and told them my guess.

One guy told me he always got them vet checked when he bought new cattle and would see what his doc said. Spoke with him yesterday and he said they are not a fungus, so this leaves me scratching my head on what to treat them for. Yes, flies are terrible this year and I do my best to keep them treated. Also spoke with the AI tech and he didn't have a clue and hadn't seen any on his animals. Any ideas?





 
If they started out as crusty matted hair as a clump and then that lifted off leaving the bare skin it could be something like Dermatophilus infection. I think from memory it is like a cross between a bacterium and a fungus and usually requires some injury to the skin like fly bites to get a foothold. The individual lesions with the bare skin are usually on the healing way after the clump of hair peels off. Occaisional animal can be more generalised and may require AB for secondary infection but the lesions are self limiting. They show up pretty good on your white cattle with their tight short summer coats.
Ken
 
I would say bacterial or fungal, ether way a good scrubbing with Betadine scrub or medicated shampoo would probably kill it.
 
wbvs58":q9vbmm4n said:
If they started out as crusty matted hair as a clump and then that lifted off leaving the bare skin it could be something like Dermatophilus infection. I think from memory it is like a cross between a bacterium and a fungus and usually requires some injury to the skin like fly bites to get a foothold. The individual lesions with the bare skin are usually on the healing way after the clump of hair peels off. Occaisional animal can be more generalised and may require AB for secondary infection but the lesions are self limiting. They show up pretty good on your white cattle with their tight short summer coats.
Ken
Click to expand...

Great online diagnosis! Went to Merck's and it reads like it's probably it. I'll print it off and give it to doc in the morning. Thanks!
 
:tiphat:
wbvs58":34spvf8n said:
If they started out as crusty matted hair as a clump and then that lifted off leaving the bare skin it could be something like Dermatophilus infection. I think from memory it is like a cross between a bacterium and a fungus and usually requires some injury to the skin like fly bites to get a foothold. The individual lesions with the bare skin are usually on the healing way after the clump of hair peels off. Occaisional animal can be more generalised and may require AB for secondary infection but the lesions are self limiting. They show up pretty good on your white cattle with their tight short summer coats.
Ken
Click to expand...
 
Well I think you have just about used up my armery of what I know or can still remember. As a point of interest to horse owners Dermatophilus sp have been incriminated with "Greasy Heel" and "Rain Scald" plus similar little clumpy sores on the lower legs.
Ken
 
Nope, but wished it was. I went ahead and treated them with oxytetracycline on my own and they are drying up. Two rounds a day apart seems to be the trick.
 

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