Evaluating Grazing Strategies for Cattle: Nutrition of Cattle and Deer

Vitamin and Mineral Nutrition of Grazing Cattle

Magnetic alignment in grazing and resting cattle and deer.

We demonstrate by means of simple, noninvasive methods (analysis of satellite images, field observations, and measuring "deer beds" in snow) that domestic cattle (n = 8,510 in 308 pastures) across the globe, and grazing and resting red and roe deer (n = 2,974 at 241 localities), align their body axes in roughly a north-south direction. Direct observations of roe deer revealed that animals orien...

Comparisons of Cattle Grazing and Sheep Grazing

Controversy has surrounded the possible differences in pasture production which result from grazing by cattle or sheep. Experiments conducted over the 1972-76 period show that pasture production under grazing by sheep is greater than under grazing by cattle under similar intensive managements. A change from sheep grazing to cattle grazing can cause a rapid deterioration in pasture production, w...

Carrion odor and cattle grazing

Recently, it has been proposed on theoretical grounds that carrion odor from flowers may not only attract pollinators, but also repel mammalian herbivores. Two grazing experiments involving 16 to 26 cattle heads per year, one for eight years (1982-1989) and the other for seven (1994-2000), in a region with no large carnivores that could influence cattle behavior, show that cattle avoid areas wh...

The copper nutrition of grazing deer

Introduction The first deer farms were established in New Zealand about 30 years ago and much of the early deer research was focussed on general nutrition, infectious diseases, management and husbandry practices, while little attention was given to trace elements. Limited trace element studies have identified copper (Cu) as the most important trace element for deer in terms of observed clinical...