Ruminal microorganisms require nitrogen and energy for microbial crude protein
(MCP) synthesis. High-quality grass provides an excess of readily available proteins
relative to available carbohydrates which reduces the conversion efficiency of grass
protein to MCP. Nonstructural carbohydrates (NSC) are the primary source of readily
available energy. Objectives of trial 1...
Two experiments were conducted to evaluate the effects of forage quality and supplemental undegradable intake protein (UIP) level on intake, digestibility, and performance of beef cattle. In Exp. 1, five ruminally cannulated steers (BW = 456 ± 6 kg) were used in a 6 x 5 incomplete Latin square with...
This Beef Cattle Nutrition Workbook is designed to be an interactive
tool to help beef producers manage their herds. It contains information
about beef cattle nutrient requirements, forage nutritive value, the importance
of minerals and vitamins to cattle health and performance, balancing
rations, economical supplementation strategies, heifer development,
and the...
Published January 1977. 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
Feeding conjugated linoleic acids (CLA) improves reproductive performance in dairy cows; however, the molecular mechanisms by which CLA improves reproduction are not well understood. Therefore, we evaluated whether the CLA isomers, trans-10, cis-12 CLA and cis-9, trans-11 CLA altered synthesis of steroidogenic hormones in bovine luteal cells by measuring concentrations...
Hemorrhagic bowel syndrome (HBS) is a devastating disorder affecting high producing dairy cattle. As an important emerging disease (Animal and Plant Health Inspection Service, 2003), HBS is now estimated to account for > 2% of the deaths of dairy cattle (Kirkpatrick et al, 2001). However, little is known about the...
Published March 1965. 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
In this study subcutaneous, inter- and intramuscular fats from 42
Hereford steers were analyzed for their fatty acid composition using
gas-liquid chromatography. The same tissues were analyzed from one
pair each of identical twins of Angus and Shorthorn breeding. Muscle
and liver lipids from these latter four animals were fractionated...
Revised April 2004. A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog