Published June 1943. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Three newborn, colostrum deprived calves were inoculated by the intranasal, intratracheal, conjunctival and oral routes with a subgroup II bovine adenovirus strain 7T. An initial viremia and febrile response occurred in all calves with widespread dissemination of the virus through the body. Clinical signs consisted of pyrexia, soft feces and...
Published January 1981. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
There are numerous causes of disease and death in newborn calves. In many locations, the leading causes of beef calf deaths are related to difficult birth (dystocia). After that, however, the most common calfhood problems are infectious diseases. Of these, scours, or
diarrhea, is the most important single cause of...
Ensuring that calves receive adequate high-quality colostrum containing
antibodies within two to four hours of birth is key to preventing scours. There are a number of factors that influence the quantity and quality of colostrum the calf receives from the dam. These include:
• age of the dam
• precalving...
Scours is the common name for diarrhea in calves. Diarrhea is a disease
of the digestive system characterized by watery feces and increased
frequency of bowel movements.
The high water content in the feces results in water loss from the body
(dehydration). Along with water, the body loses electrolytes, which...
Studies were conducted over a 10-year period to determine the feasibility
of supplementing lactating cows being wintered on native meadow hay. The
interaction between cow feed levels and creep feeding of calves was also investigated.
Results show that a full feed of meadow hay to the cows and no creep...
This thesis is a discussion of the major bee diseases
found in Oregon with notes on minor ailments of bees and
on diseases not yet present followed by a history of the
introduction and spread of the more important diseases,
a history of bee legislation in Oregon and a discussion...