Two experiments evaluated nutritional management of late-gestating beef cows to enhance offspring productivity. The objective of experiment 1 was to evaluate the effects of organic and inorganic Cu, Mn, Zn, and Co supplementation to beef cows during late-gestation on performance and physiological responses of the offspring. The objective of experiment...
To evaluate the immunologic and metabolic effects of OmniGen-AF® (Phibro Animal Health corporation, Quincy, IL; OG) supplementation in growing beef cattle, we designed three studies using replacement beef heifers (8.5 and 10.5 months of age) and steers supplemented across backgrounding, transition, and finishing periods. In Study 1, the effect of...
In the first set of studies, 2 experiments evaluated the influence of supplement composition on ruminal forage disappearance, performance, and physiological responses of Angus × Hereford cattle consuming a low-quality, cool-season forage (8.7 % CP and 57 % TDN). In Exp. 1, 6 rumen-fistulated steers housed in individual pens were...
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...
Two studies were conducted to evaluate the influence of supplement composition on intake and digestibility of a low-quality (< 6% CP), cool-season forage, as well as cow performance. Treatments included a non-supplemented control (CON), corn (approximately 8% CP), corn and urea (LU = corn + 0.09 mg/kg BW urea, approximately...
Studies were conducted at the Squaw Butte Experiment Station during
two consecutive years to : (1) compare various internal indicators and
chromic oxide to estimate forage intake and fecal production, (2) compare
methods of producing slaughter weight steers using maximum quantities
of forage and minimum quantities of grain. Actual fecal...
Ninety-two spring-born and 76 fall-born steer and heifer calves
(Hereford and Angus x Hereford) averaging 188 and 255 kg, respectively,
were utilized in a 2x2 factorial arrangement of treatments to study
the effects of zeranol and monensin, alone and in combination, on
growth rate, feed efficiency and carcass characteristics. After...
Three experiments were conducted to evaluate the influence of quality of
supplemental alfalfa quality on beef cattle consuming low-quality meadow grass (MG)
roughages. Fifteen steers (250 kg) were assigned randomly to one of three treatments: 1)
meadow grass (5.2% CP), no supplement (MNS); 2) meadow grass plus high quality
alfalfa...
Two experiments were conducted to determine the effects of daily (D) vs
alternate day (AD) supplementation of soybean meal (SBM) or wheat
middlings (WM) on forage organic matter intake (OMI), ruminal digesta
kinetics, total tract digestibility, and ADG of steers consuming low quality
forage. In Exp. 1, five Angus x...
We conducted two experiments evaluating perennial ryegrass straw as a forage source for ruminants. Experiment 1 evaluated digestion and physiological variables in steers offered perennial ryegrass straw containing increasing levels of lolitrem B. Sixteen ruminally cannulated Angus X Hereford steers (231 ± 2 kg BW) were blocked by weight and...
Three experiments compared ruminal, physiological, and performance responses of beef steers consuming hay ad libitum and receiving grain-based supplements with (CAM) or without (CO) inclusion of camelina meal. In Exp. 1, 9 steers fitted with ruminal cannulas received CAM (2.04 kg of DM/d) or CO (2.20 kg of DM/d). Steers...
Published June 1973. 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
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...
In the majority of management scenarios, it is imperative that beef replacement heifers calve at two years of age. In order to achieve this goal, yearling heifers should reach 60 to 65% of their mature body weight by 13 months of age. Feed costs represent 75 to 80% of the...
Potato waste is processing residue generated as a byproduct from
the production of frozen and dehydrated potatoes. Although feedlots
have fed potato waste to cattle for years, very little information is
available to provide guidance to potential buyers and sellers for
determining prices. The value of potato waste in beef...
Published October 1973. 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 August 1920. 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 July 1961. 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 March 1982. 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
AUTHORS: H. A. Turner is Associate Professor of Animal Science at the Squaw Butte Station. R. J. Raleigh is Superintendent of the Eastern Oregon Agricultural Research Center and Professor of Animal Nutrition at the Squaw Butte Station. Lloyd Swanson is Associate Professor of Animal Science at Oregon State University, Corvallis....
AUTHORS: H. A. Turner is Assistant Professor of Animal Science at the Squaw Butte Station. R. J. Raleigh is Superintendent of the Eastern Oregon Agricultural Research Center and Professor of Animal Nutrition at the Squaw Butte Station. C. M. Britton is Assistant Professor of Range Science at the Squaw Butte...
Published July 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
Published May 1976. 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 March 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
Published September 1966. 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
The following trials were conducted to compare different silages as a base for a growing ration. The objectives were, 1) to compare the growth performance of light and heavy calves on corn, corn cannery waste, milo, sorgho-sudan, and peavine silages at two levels of concentrate supplementation; 2) to determine any...
Published February 1966. 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 March 1966. 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
The livestock producer of today is both a scientist and an artist. Webster defines a scientist as one who possesses knowledge gained and verified by exact observation and correct thinking. An artist is defined as one who possesses skill or can skillfully use knowledge for the creation of material or...
In this day of high investment, high cost, and narrow economic margins in livestock operations it is not enough to increase-the forage quantity and quality. The livestock rancher must increase the efficiency of his livestock in the job of converting forage to pounds of saleable product. This increased efficiency may...