She doesn't act injured and hasn't been near other animals except through a common fence. LEG WEAKNESS I N PIGS 1 A REVIEW F.X. It doesn't seem to be just one - or at least I can't tell which one. The partial loss may progress to a total paralysis. My pot belly pig has weak hind legs. The most common causes are mechanical damage to knees in sucking pigs, swelling or leg calluses particularly on the hind legs, seen on many animals that are reared on concrete floors. I have a three one-half year old doe, kidded in March. One such approach is to proceed from the bottom up and front to back of the pig, ie, the feet are evaluated first, followed by the limbs and torso in a front-to-back progression. Culling on leg score would be expected to reduce the frequency of leg weakness. Came out this morning and she's weak in her back end. If your pigs become anemic later on, you can administer iron shots . Lameness is a failure of the pig to walk normally. She will walk around and her back legs just go out. She might be a little overweight but this behavior has come on suddenly. Overall leg action was scaled on a scale of 1 to 5, whereas only the most severe symptom of leg weakness on fore and hind legs were scaled as binary. Mildly affected pigs have disturbed gait with swaying of the hips or the legs may be bowed. The feet can be examined most easily when the pig is lying laterally recumbent or lifted (manually for small pigs or using a mechanical chute for sows). This is extremely painful and can arise through trauma or occasionally infection. Any skin eruptions or lesions can occur in a matter of minutes. In other words the pig partially loses the use of its lower back legs, and then its thighs and then the rear end of its body. Temp 101.4, eating, pooping, urinating ok. Gums fine. Osteochondrosis is a generalised skeletal disease which leads to leg weakness. This is just in the last two days. Though most market-weight hogs show some degree of joint cartilage damage a t time of slaughter, the problem i s of no economic significance for slaughter hog production. The weakness and sensitivity in the back legs can occur in a matter of hours. The pigs were fed ad libitum from 25 to 90 kg. Causes. 90 kg. 6 month old Yorkshire pig - she is around 175#. Another term is leg weakness. Affected pigs develop an ascending paralysis of muscles which may progress to a complete hind end paralysis. Seemed fine yesterday and even this morning - however, noticed when I got back from work that her back legs keep going out under her. Depending on the pain threshold of the pig and the severity of the case, the animal ends up anywhere from uncomfortable to screaming with pain. The noticeable effects will be difficulty in rising or walking, swaying and misshapen limbs. A perfectly normal pig can be incapacitated three hours later. Also in the performance testing stations, the station manager scored the pigs for overall leg action and symptoms of leg weakness at the end of the test period. Pigs which are lame may stand with the back arched, all four feet tucked under the body and the head down to reduce the weight on … Administer iron shots at three to five days of age, doing so in the hind leg or into the neck. The easiest way to prevent anemia is to make sure your piglets are injected with 150-200 milligrams of iron dextran within a week of birth. The study indicates that leg condition and fatness are adversely genetically related, but that selection on the present national performance index would not be expected to cause a rapid decline in leg condition. Udder fine, in fact I think she's drying up. Aherne SUMMARY Leg weakness is a broad term used to describe lameness of pigs caused by cartilage or skeletal abnormality or foot lesions. 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