Third of North’s herds have lameness problems
This is higher than indicated in Republic of Ireland research reports, but we still have a serious lameness problem in this part of the country.
There are four main lameness diseases of dairy cows, namely sole ulcers, digital dermatitis (Mortellaro), laminitis and foul of the foot.
Veterinary advice suggests that every cow needs an annual hoof care check up and regular hoof maintenance to ensure a long and productive life. Hoof baths and other treatment should be used as recommended.
Increased rates of lameness are occurring on many farms, with 20 to 50 cases per 100 cows on some problem farms.
The results of lameness are well known and proven. They include reduced milk yield and reduced fertility — because lame cows are slower to come in heat or show signs of heat.
There are many causes of lameness, most of which can be controlled or prevented.
* The most common cause of lameness is bad housing, particularly poor quality, dirty cubicle houses, with small cubicles and not enough cubicles, which forces cows to stay standing too long, sometimes in dirty passageways and yards.
* Poor ventilation also increases lameness, as well as causing many other problems.
* Rough handling of cows, particularly on rough concrete and roadways.
* Long walking distances aggravate the problem. Lame cows should be kept near the milking parlour.
* Some contagious diseases can cause very sudden widespread outbreaks of lameness which require very urgent veterinary intervention.
* Poor nutrition practices, such as introducing concentrates too suddenly after calving, or having cows with a poor mineral status, are likely to cause laminitis and lameness.
Mineral/trace element/vitamin products with chelated zinc in the form of zinc methionate have proved to be a useful ingredient for development of strong healthy hoofs.
Such products should be used where normal preventative methods such as regular foot bathing and hoof paring and treatment are not satisfactory.
Many of the best performing dairy farmers use these type of minerals, which contain a wide range of trace elements, as a general practice to help improve the general health and fertility of animals. Hoof paring and treatment should be carried out only by well-trained experts. The Farm Relief Service (FRS) provides this service very efficiently.
Their highly trained operators can identify signs of impending lameness problems and take preventative action. They can fit six different types of shoes to cows, chosen according to the symptoms and the disease involved.