Published February 1933. 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
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
Published November 1940. 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
Provides an overview of the role of selenium in the diet of livestock, and discusses selenium supplementation rates and supplementation methods. Lists guidelines for assessing livestock’s selenium status and summarizes research useful to Oregon livestock producers.
Juvenile T. townsendii were tested at 55-62 days of
age to determine whether 1) they could distinguish kin from
non-kin and 2) whether this ability was based on
familiarity or on genetic relatedness. Seventy-three pups
were observed in 68 pairwise tests. The frequencies and
durations of 8 behaviors as well...
Numerous laboratory studies with at least 12 species of rodents have reported that exposure of females to strange males results in pregnancy disruption or infanticide. The proximate causes and ultimate benefits of these behaviors have been proposed from an evolutionary perspective. To determine if exposure to strange males or females...
Protein microcapsules (PM) were developed as a tool for investigating aspects of dietary protein utilization by mussels, Mytilus edulis trossulus. Digestion of PM in vitro by protease, trypsin, amylase and extracts from the gut of mussels varied significantly depending on the type of protein encapsulated or whether carbohydrates were added...
Dietary fiber has been suggested as interfering with
mineral utilization. The influence of broccoli florets and
wastes, cauliflower heads and wastes, wheat bran and Metamucil
on mineral uptake by the rat was determined using
balance studies. All results were compared to control
animals fed diets containing 10% hydrolyzed cellulose.
Utilization...