Index Catalog // ScholarsArchive@OSU

Nutrition and management of the beef unit for production of slaughter animals on range and improved pastures in southeastern Oregon

Creator:: Daugherty, Dennis A.
Abstract:: Studies were conducted over a two year period to evaluate alternative finishing methods for spring and fall-born beef cattle. Management alternatives from birth to slaughter included season of calving, lactating cow nutrition, preweaning calf nutrition, weaning age, calf and yearling winter nutrition, range and irrigated pasture supplementation, grazing practice, range...
Resource Type:: Dissertation
Full Text:: Nutrition and management of the beef unit for production of

Scrotal circumference measurements as an indicator of growth in the male beef animal

Creator:: Pirelli, Gene J.
Abstract:: Testes size as an indicator of future growth was examined in a total of 45 bull calves from spring calves born in 1978 and 1979. Scrotal circumference measurements were used as the physical indicator of testicle size in the live animal. Growth traits studied were preweaning average daily gain, weaning...
Resource Type:: Masters Thesis
Full Text:: value in predicting future performance in male beef cattle and can be used as a management tool or

Computer simulation of beef cattle production systems in the Llanos of Columbia

Creator:: Levine, Joel Martin
Abstract:: A simulation model capable of execution on a programmable calculator was developed to study voluntary intake, liveweight change, and fertility of grade Zebu cows in the Llanos of Colombia. Organic nitrogen in the diet and meta bolic weight were used to predict intake; age, liveweight, and energy concentration were the...
Resource Type:: Dissertation
Full Text:: Philosophy in Animal Science presented on February 8, 1979 Title: Computer Simulation of Beef Cattle

Analysis of two alternative management systems for the production of fall born beef calves in western Oregon

Creator:: Rosecrans, John Gerald
Abstract:: Two management systems were evaluated in terms of the effects on calf growth, on calf weight produced per cow per year, and on reproductive performance of fall calving cows. The alternative management systems tested were twin foster calf production and, delayed weaning, production of single suckled calves weaned at the...
Resource Type:: Masters Thesis
Full Text:: DISCUSSION 57 Fall Calving Management 57 Calf Nutrition and Growth 58 PROPOSED RESEARCH 62 The Effect of

Alternate methods of fattening steers in Eastern Oregon

Creator:: Whittington, David Lynn
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: times daily and by Wheeler (1962) who fed it as a powder in cottonseed meal to beef cat- tle. Chromic

Mathematical modeling of selection and crossbreeding in beef cattle

Creator:: Clarke, Stephen Emil
Abstract:: A mathematical model was developed to simulate alternative selection and crossbreeding strategies for commercial beef production. Biological and economic constraints were selected to represent typical pasture production of calves in the Northwest. The crossbreeding study evaluated the relative economic efficiency of different 1) mating plans when sire breeds of several...
Resource Type:: Dissertation
Full Text:: , but not both, simultaneously. Mathematical Modeling of Selection and Crossbreeding in Beef Cattle

Relationship of dietary crude protein to factors in uterine secretions and plasma in high producing postpartum dairy cows

Creator:: Jordan, Ellen Rae
Abstract:: Eighteen multiparous, high producing (7,836 kg 4% FCM) Holstein dairy cows were assigned randomly to iso- . caloric rations containing either 12 or 23% crude protein (CP) on day 40 postpartum. After a 10-day adaptation period, uterine secretion and blood samples were collected on the day of estrus (day 0-1),...
Resource Type:: Dissertation
Full Text:: feeding higher proportions of concentrates. Studies have been conducted in beef and dairy cattle to

The effect of different levels and sources of crude protein on the voluntary intake of low quality roughages

Creator:: Santos, Ariel
Resource Type:: Masters Thesis
Full Text:: experimental trials were conducted in the beef cattle research facilities at Oregon State Univer- sity. The

Monensin and zeranol alone and in combination for growing-finishing steers and growing heifers

Creator:: Wooten, Donald Griffin
Abstract:: 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...
Resource Type:: Masters Thesis
Full Text:: , when fed to grazing cattle. In 1979, Shell et al. reported significant increases in proprionate and

Direct-maternal genetic correlations for preweaning growth in Hereford cattle

Creator:: Tewolde, Assefaw
Resource Type:: Dissertation
Full Text:: are an important source of variation in pre- weaning traits in beef cattle (Koch and Clark, 1955b

ScholarsArchive@OSU

Nutrition and management of the beef unit for production of slaughter animals on range and improved pastures in southeastern Oregon

Scrotal circumference measurements as an indicator of growth in the male beef animal

Computer simulation of beef cattle production systems in the Llanos of Columbia

Analysis of two alternative management systems for the production of fall born beef calves in western Oregon

Alternate methods of fattening steers in Eastern Oregon

Mathematical modeling of selection and crossbreeding in beef cattle

Relationship of dietary crude protein to factors in uterine secretions and plasma in high producing postpartum dairy cows

The effect of different levels and sources of crude protein on the voluntary intake of low quality roughages

Monensin and zeranol alone and in combination for growing-finishing steers and growing heifers

Direct-maternal genetic correlations for preweaning growth in Hereford cattle

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search