Injectable diphenhydramine 0 5 to 1 0 mg kg iv im.
Cattle laminitis definition.
Laminitis can affect one or all feet but it is most often seen in the front feet concurrently.
Laminitis also termed founder is inflammation of the laminae of the foot the soft tissue structures that attach the coffin or pedal bone of the foot to the hoof wall.
The inflammation and damage to the laminae causes extreme pain and leads to instability of the coffin bone in the hoof.
The classic hypothesis suggests that high levels of carbohydrate in the diet see subacute ruminal acidosis invoke an increase of streptococcus bovis and lactobacillus spp which induce a state of acidosis in the rumen.
Affecting the entire body and therefore the factors causing laminitis can affect any foot.
Cattle with chronic laminitis slipper foot usually have overgrown disfigured hooves.
Laminitis is a disease that affects the feet of ungulates and is found mostly in horses and cattle clinical signs include foot tenderness progressing to inability to walk increased digital pulses and increased temperature in the hooves.
However founder usually refers to a chronic long term condition associated with rotation of the coffin bone whereas acute laminitis refers to symptoms associated with a sudden initial.
This causes gram negative organisms to die and release vasoactive endotoxins.
Heavier cattle or cattle held on feed for too long are at a higher risk for lameness.
Abnormal growth in chronic cows can lead to abnormal wear which predisposes.
Subclinical laminitis in dairy cattle not affected by clinical laminitis paring of the sole 80 100 days after calving may reveal signs indicative of laminitis increased incidence of haemorrhages yellowish discolouration and sole lesions.
Antihistamines may be useful e g.
Cattle infected with mycoplasma bovis are at risk of joint infection.
The etiology of subclinical laminitis in cattle is not understood.
The term subclinical laminitis has been introduced for this condition 45 46.
High grain rations erratic feed consumption due to weather factors or feed supply problems and improper feed processing are risk factors for laminitis.
Since the outside claw of the rear foot is most often affected cows tend to stand cow hocked.
Nsaid non steroidal anti inflammatory drug injectable ketoprofen 2 to 4 mg kg im iv.
The terms laminitis and founder are used interchangeably.
The coronary band is covered with a rough fringe of horn and the hoof appears rippled.
