URBANA, Ill. – Since they were first released as live bait in the mid-twentieth century, rusty crayfish have roamed lake bottoms in northern Wisconsin, gobbling native fish eggs, destroying aquatic plants, and generally wreaking havoc on entire lake ecosystems. Today, in some lakes, traps can routinely pull up 50 to 100 rusty crayfish at a time, compared to two or three native species. But in other lakes nearby, populations seem to be declining.

URBANA, Ill. – In pig diets, the amount of digestible calcium has a direct impact on phosphorus digestibility and the overall growth performance of the animals. With more calcium, phosphorus digestibility and feed intake decrease, leading to lower-weight pigs.

URBANA, Ill. – Seedstock breeders and commercial cow-calf producers interested in purchasing a total-performance-tested bull will want to attend the 2019 Illinois Performance Tested Bull Sale. The sale will be the leadoff event of the Illinois Beef Expo.

URBANA, Ill. – University of Illinois Extension has announced it will hold its annual Beef Selection and Reproduction Management Seminar on Jan. 29 at the American Legion in Lincoln. The meeting will start at 5:15 p.m. and conclude at 8:30 p.m.

The program will include experts sharing practical knowledge on a range of topics.

June 30, 2003

URBANA -- Are animal lovers always nature lovers? Environmental psychologist and University of Illinois professor Joanne Vining has hypothesized that people’s affection for animals may have something to do with how they care about the environment.

Psychologists have done numerous studies on humans and their attachment to animals and/or their pets as well as numerous studies on people’s concern for nature and the environment. Vining is the first to test these factors empirically to see if they influence each other.

Fleas are tiny wingless critters that annoy pets and disgust owners. Most pet owners will battle fleas or the allergic response fleas can cause. Flea allergy dermatitis—an inflammation and irritation of the skin—is the most common skin allergy in dogs and cats.

The panic surrounding West Nile virus has quieted down, but the virus is still a cause for concern among horse owners. This crafty virus crossed the Atlantic in 1999 and has made a rapid progress westward. Over 9,000 equine West Nile cases were reported last year, including 431 Illinois cases. With a new vaccine available and an increased vigilance against mosquitoes, veterinarians and horse owners alike hope these numbers will be lower in 2003.

Do you want a dog but live in a small apartment? Consider other pet options. Rabbits and guinea pigs make excellent apartment pets, and many landlords who are anti-dog or cat will allow caged pets. Caged pets generally require less maintenance, making them great companions for people on the go.

Intestinal parasites, or worms, are a plague to both dogs and cats. Most pets will harbor worms at some point in their lifetime. Puppies and kittens have a high incidence of intestinal parasites, and most receive de-worming treatment as part of their routine care. Roundworms, hookworms, and whipworms are the most common culprits of these infections.

May 20, 2003

URBANA - For over 130 species of birds, getting bitten by a mosquito carrying the West Nile virus can be fatal. And, although crows and jays appear to be hardy, aggressive birds, there is something about their immune system that makes them "differentially susceptible to the virus" said Jeff Brawn, a University of Illinois researcher. Brawn has been working with medical entomologists for the last year to study the effects of the virus on bird populations. He hopes to study how the virus will cause an evolutionary change in the crow’s immune system.