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Photosensitization

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Comments

  • Registered Users, Registered Users 2 Posts: 4,077 ✭✭✭Hard Knocks


    tanko wrote: »
    It’s not a good idea to force cattle to graze fairly bare roughish ground that may have St. John’s wort in as cattle sometimes eat it if grass is scarce.

    I’ve no St Johnsworth but a 6m calf got it
    I was making eat fields bare which had clover?


  • Registered Users, Registered Users 2 Posts: 11,224 ✭✭✭✭wrangler


    I’ve no St Johnsworth but a 6m calf got it
    I was making eat fields bare which had clover?


    If it was because of something growing in the fields you'd have more than one case


  • Registered Users Posts: 970 ✭✭✭sonnybill


    Mooooo wrote: »
    Vet guve any anti-inflammatory such as metacam? If not it would probably help.

    He did (cortisone maybe) and I’ve 25 ml to give her today too .


  • Registered Users, Registered Users 2 Posts: 4,077 ✭✭✭Hard Knocks


    sonnybill wrote: »
    He did (cortisone maybe) and I’ve 25 ml to give her today too .
    Have you her inside?


  • Registered Users Posts: 970 ✭✭✭sonnybill


    wrangler wrote: »
    If it was because of something growing in the fields you'd have more than one case

    I thought that too but this lady carry’s no reserves, she puts all into calf and 2 months in calf again, she 15 also I suppose ..if they need to eat 1% of body weight of a plant she’d get there a lot quicker than some of the bigger sucklers


  • Registered Users, Registered Users 2 Posts: 9,291 ✭✭✭tanko


    sonnybill wrote: »
    I thought that too but this lady carry’s no reserves, she puts all into calf and 2 months in calf again, she 15 also I suppose ..if they need to eat 1% of body weight of a plant she’d get there a lot quicker than some of the bigger sucklers

    Some cows are more vulnerable than others. Cows that are under pressure or not just thriving as well as they might or have reduced liver function are most likely to suffer most from it.
    Cattle with white hair are more prone to it also i find.
    It’s very rare that i’d keep a cow over ten years old. Once they reach that age they can be troublesome with feet, udder and general health problems.


  • Registered Users, Registered Users 2 Posts: 11,768 ✭✭✭✭Say my name


    wrangler wrote: »
    I'm nearly sure I read somewhere that Liver damage can cause Photosensitisation, hence the fluke dose maybe

    I think it's the damaged liver that it's not able to process vitamin D taken in by the skin from the Sun.
    It's the white skin that takes in increased Vit D as opposed to black skin and the Vitamin D has nowhere to go (with a damaged liver) only build up and do damage to the skin.
    *Could be barking but I'm sure I read that somewhere.


  • Registered Users Posts: 970 ✭✭✭sonnybill


    She not so bad tonight, she eating well, let her and the calf out at dusk and be rounding her up again early doors !

    Teats red raw , I’d say she’ll dry up on calf altogether


  • Registered Users Posts: 970 ✭✭✭sonnybill


    Have you her inside?

    Sorry , yes she is inside and I letting her out at night to fill herself, heifer calf is to be kept anyway but bare 4 months and cow won’t let her suck so need to keep her going with something


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  • Moderators, Society & Culture Moderators, Sports Moderators Posts: 9,041 Mod ✭✭✭✭greysides


    tanko wrote: »
    It’s eating St Johns Wort that causes it, nothing to do with Ragwort afaik.

    Many plants can cause it as it's either a plant source of toxin or a plant toxin causing liver damage.

    There can be a mild case of it accompanying Endocarditis (due to the liver being compromised) or in Ragwort poisoning (it won't be a major sign). Liver damage by fluke may cause a mild case but its not a major problem in fluke situations. Some foreign serovars of Lepto can cause it via liver damage. Blue-green algae in ponds/troughs can cause it, as can mycotoxins from under the grass. After all those exceptions it's plants that cause it mainly. Not just St. Johns wort, also Bog Asphodel, clovers, some species of grass. Most botanical work on this has been done in other climates to ours so the list above isn't complete. Personally, I suspect Buttercups, Docks and plants such as Wild Onion, Wild Parsley and Angelica. The sap of Hogwed will do it and cause burn-like lesions on your skin but it's hard to see animals eating it.

    The aim of argument, or of discussion, should not be victory, but progress. Joseph Joubert

    The ultimate purpose of debate is not to produce consensus. It's to promote critical thinking.

    Adam Grant



  • Registered Users Posts: 970 ✭✭✭sonnybill


    I’d have good hope for her now, 2nd night at grass and was stood up at gate at 6.30 am with calf sucking her, great to see the big white froth around calf’s mouth ! Has to be sore on her but she some warrior to let her suck


  • Registered Users Posts: 9 bosallagh


    Had a cow took it about 2 months ago black angusshe swollen up round bearing and took a heatstroke no other symptoms in house since could I let her out again?


  • Registered Users, Registered Users 2 Posts: 11,224 ✭✭✭✭wrangler


    bosallagh wrote: »
    Had a cow took it about 2 months ago black angusshe swollen up round bearing and took a heatstroke no other symptoms in house since could I let her out again?

    Inever had to leave them in longer than four or five days


  • Registered Users, Registered Users 2 Posts: 11,352 ✭✭✭✭Base price


    bosallagh wrote: »
    Had a cow took it about 2 months ago black angusshe swollen up round bearing and took a heatstroke no other symptoms in house since could I let her out again?
    TBH I've never heard of it with Angus cattle. If she is OK now then I'd let her out and keep an eye on her. I don't think the upcoming weather is going to cause a problem as it's all rain with showers in between :(


  • Registered Users Posts: 9 bosallagh


    Yea didn't think an Angus would take it tried her out a few weeks later on a wet dull day she grazed for 40 minutes then headed towards the hedge was thinking of putting her out near the yard keeping an eye on her that the sunlight wasn't annoying her and putting her back in the house if needs be


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  • Registered Users Posts: 815 ✭✭✭Mulumpy


    Put a friesan heifer calf into shed yesterday with same problem. White patches on her shoulder with hair loss. Very agitated and scoured. Vet gave me meds to get her going again. Can't find any offending plants she could have eaten. Any idea how long between eating a poisonous plant before symptoms show?


  • Registered Users, Registered Users 2 Posts: 4,232 ✭✭✭orm0nd


    High uv Ray warning for this area, all of this week. Imo it causes more problems than eating weeds.

    Also people urged to use strong factor sun tan lotion or cover up when out of doors.


  • Registered Users Posts: 970 ✭✭✭sonnybill


    Stopped letting calf suck again, i tied her legs this am and lathered cheno unction into The teats? Any other better product I should be putting on them ?


  • Closed Accounts Posts: 604 ✭✭✭TooOldBoots


    Have an old Simmental cow with it. She's been hiding in a shed over the last week and only coming out at night to graze. She aborted too unfortunately so her fate is sealed now and shes for the Burger King

    The Sun has been very strong here over the last few weeks and even though its been raining a lot, when its out its very strong and you'd get sunburn yourself if you were out in it.


  • Registered Users Posts: 970 ✭✭✭sonnybill


    Have an old Simmental cow with it. She's been hiding in a shed over the last week and only coming out at night to graze. She aborted too unfortunately so her fate is sealed now and shes for the Burger King

    The Sun has been very strong here over the last few weeks and even though its been raining a lot, when its out its very strong and you'd get sunburn yourself if you were out in it.

    Sorry to hear that , my one was scanned in calf but not rechecked her since.

    Could be same outcome , she lost lumps of hair behind ears and all the way out on the ear itself , cheno unction was the only job for pink bits , Cow is a solid red with a black snout so AA as discussed above could well get it


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  • Registered Users, Registered Users 2 Posts: 11,352 ✭✭✭✭Base price


    I brought in the bull calves (Jan/Feb born) to treat a few with pink eye last week. I noticed that two had signs of photosensitisation with that scaly hard skin along their backs and another one with it on his off side shoulder. I brought them to our Vet and she gave them a few IV injections. She gave me two shots of Dexameth to give to them. I bring them in every day and smothered the areas with sudocrem. Fingers crossed they are doing well and the scaly skin is receding but the weather here has been dull/overcast in the last few days.


  • Registered Users, Registered Users 2 Posts: 11,224 ✭✭✭✭wrangler


    Base price wrote: »
    I brought in the bull calves (Jan/Feb born) to treat a few with pink eye last week. I noticed that two had signs of photosensitisation with that scaly hard skin along their backs and another one with it on his off side shoulder. I brought them to our Vet and she gave them a few IV injections. She gave me two shots of Dexameth to give to them. I bring them in every day and smothered the areas with sudocrem. Fingers crossed they are doing well and the scaly skin is receding but the weather here has been dull/overcast in the last few days.


    Steroid injection such as dexameth works well here with the sheep, luckily nothing is in lamb when they are prone to photosensitisation, it must be a nightmare to cure without it


  • Registered Users Posts: 970 ✭✭✭sonnybill


    sonnybill wrote: »
    I’d have good hope for her now, 2nd night at grass and was stood up at gate at 6.30 am with calf sucking her, great to see the big white froth around calf’s mouth ! Has to be sore on her but she some warrior to let her suck

    Milk sampled my cows yesterday and she maintained the pregnancy throughout all that ! She has two bald ears but she is back in milk and rearing her calf too!


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