HAPPY, HEALTHY HENS

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Pesticide treatment of the birds themselves is essential, especially to the point that the skin is wet. Yet if the housing is neglected, treatment won't be complete. Checking and treating the house, feed and egg crates, cases, and flats along with all your chicken-house clothing and boots is of great importance. If one area is neglected, it is of no use to treat the rest. Houses are the most affected, yet least aggressively treated, areas.

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Dear Andrea:

We own a few Hampshire feeder pigs who have had distorted snouts since birth. What's the cause of this?

-Jake McColly Joliet, IL

Dear Jake:

Several bacteria are commonly found in the upper air passages of pigs. These bacteria have special

appendages that allow them to firmly attach to cells inside the nasal cavity. Some bacteria and the toxins that they produce irritate the nasal cells so much that the nose tissue is severely damaged. This produces the mild-to-severe coughing, sneezing, nose rubbing, and obvious snout distortion for which the disease is known. At times, black tear streaks can be seen running from the eyes. In severe cases, the rhinitis, or nasal inflammation, can result in pneumonia as well.

Mild occurrences of this disease—known as atrophic rhinitis-pose minimal economic consequences to pork producers, and often do not warrant the expense of treatment. Severe outbreaks or recurrence of signs however, require urgent action. To treat this disease requires strategy. Since the disease is extremely contagious, don't introduce any new pigs to your herd if you can help it. In fact, when purchasing, try to buy those pigs vaccinated against the disease or less severely affected. Injectable and oral antibiotics in feed and water may help halt disease progression. One of the most appropriate ways to treat the disease, however, is to prevent it via reduced stress. For pigs, this means in particular improved ventilation, decreased dust, and increased hygiene via more efficient manure removal.

Dear Andrea:

I'm a first-year vet student, specializing in large animals, at University of California. I'm finding that there are hundreds of causes of lameness in horses. In fact, there have been books written in volumes on this subject alone. One day I hope to be an expert, but, until then, what basic things can I do to prevent and treat lameness in my horses?

Jennifer Stuart Davis, CA

Dear Jennifer:

Living arrangements have much to do with injury. Late summer pastures, once plush, are now filled with flies and dried mud, cracked and hardened from the sun. Animals turned out daily are usually not shod, and they may stomp at flies and run awkwardly on the uneven ground, increasing the likelihood of hoof bruises and cracks, both of which invite bacterial infection. Uneven terrain may also bruise soles and increase the risk of sprain, strain, and tendinitis.

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