Animals

URBANA, Ill. – Invasive silver carp have been moving north toward the Great Lakes since their accidental release in the 1970s. The large filter-feeding fish, which are known to jump from the water and wallop anglers, threaten aquatic food webs as well as the $7 billion Great Lakes fishery. But, for the past decade, the invading front hasn’t moved past Kankakee. A new study, led by scientists at the University of Illinois, suggests that Chicago’s water pollution may be a contributing to this lack of upstream movement.

URBANA, Ill. – Although many Illinois farmers convert cropland into grassland specifically to benefit wildlife, the memo may not be getting through to eastern cottontail rabbits. A recent University of Illinois study suggests cottontails are spending too much time in crop fields, underestimating the dangers that await them there.    

URBANA, Ill. – New high-protein canola-meal products are available for inclusion in swine diets, but until now, it wasn’t clear how these products would affect gestating and lactating sows. A recent University of Illinois study demonstrates that both high-protein and conventional canola meal can substitute soybean meal up to 100% without detrimental effects.  

URBANA, Ill. – On the Hawaiian island of Oahu, it is possible to stand in a lush tropical forest that doesn’t contain a single native plant. The birds that once dispersed native seeds are almost entirely gone too, leaving a brand-new ecological community composed of introduced plants and birds. In a first-of-its-kind study published today in Science, researchers demonstrate that these novel communities are organized in much the same way as native communities worldwide.

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.