Index Catalog // ScholarsArchive@OSU

Stimulatory effect of trace elements on cellulose digestion by washed suspensions of rumen microorganisms

Creator:: Martinez, Andres
Abstract:: The object of the present study was to investigate the stimulatory or inhibitory effects of barium, boron, bromine, cadmium, chromium, cobalt, copper, fluorine, iodine, iron, manganese, molybdenum, nickel, rubidium, selenium, strontium, vanadium, and zinc upon in vitro rumen microbial activity as measured by the amount of cellulose digested. Washed suspensions...
Resource Type:: Masters Thesis

The effect of varying levels of readily available carbohydrates on urea utilization

Creator:: Wright, Rodney Joseph
Abstract:: The object of this research was to study the effect of readily available carbohydrates (RAC) upon the utilization of urea in fattening rations and to determine the effect upon carcass characteristics that determine quality and yield grades. A 2 x 2 latin square designed feedlot trial comparing urea at 0.5%...
Resource Type:: Masters Thesis

Influence of pesticides on rumen microbial metabolism

Creator:: Kutches, Alexander Joseph
Resource Type:: Dissertation

Taste responses in Columbian black-tailed deer (Odocoileus hemionus columbianus (Richardson))

Creator:: Crawford, James Charles
Abstract:: Taste responses of the Columbian black-tailed deer, Odocoileus hemionus columbianus (Richardson), were determined by use of the two-choice preference test method, where the choices were tap water and tap water-chemical solutions in ascending concentrations. The chemicals tested were: the sugars, glucose and sucrose; the sodium salts of chloride (NaC1) and...
Resource Type:: Masters Thesis

Tissue analysis and winter feeding of deer

Creator:: Fowle, Kenneth Edward
Abstract:: This study was conducted to delineate the cause or causes of winter deaths in deer and to provide information from which emergency feed could be formulated. Deer were shot at monthly intervals through the winter in Wallowa County, Oregon. Samples from the rumen, liver, mandible, blood and feces were taken...
Resource Type:: Dissertation

Taste reactions in Columbian black-tailed deer

Creator:: Rice, Patrick Ralph
Abstract:: This study involved the use of the two-choice preference test to determine the taste reactions of buck and doe Columbian black-tailed deer (Odocoileus hemionus columbianus) to ascending concentrations of water extracts of Douglas fir, red alder, cascara, western hemlock and bitterbrush; to an ethanol extract of Douglas fir, and to...
Resource Type:: Masters Thesis

Nutritional aspects of artificially feeding captive and wild deer

Creator:: Dean, Ronald E.
Abstract:: Most of the nutritionally related difficulties of winter feeding deer apparently result from either poor acceptability of artificial rations or digestive disturbances that result from feeding starved animals feeds to which they are not accustomed. Reported in this thesis are studies conducted with both captive and wild deer concerning acceptability...
Resource Type:: Dissertation

The nutritive interrelationships of tallow and urea in ruminants

Creator:: Phillips, Ralph L.
Abstract:: The object of this study was to observe the effect of tallow plus urea in vitro and in vivo. The study was carried out in three parts; an in vitro fermentation study, a metabolism trial and a feedlot trial. The in vitro study was conducted using a 4 x 2...
Resource Type:: Dissertation

Some psychophysiological aspects of taste and eating rate in cattle, sheep, and horses

Creator:: Randall, Ronald Patrick
Resource Type:: Dissertation

Taste responses of pygmy goats and cattle

Creator:: Mehren, Michael John
Resource Type:: Dissertation

The effect of ration formulation on the subsequent generation of volatile gases and odors from bovine waste

Creator:: Kellems, Richard O.
Abstract:: The objective of this study was to determine the effect that ration formulation has on volatilization of gases and offensiveness of the odor associated with the wastes produced from Holstein replacement heifers. Six separate experiments were conducted to study the relationships between different variables on the release of hydrogen sulfide,...
Resource Type:: Dissertation

The effect of fats and urea on in vitro cellulose digestion

Creator:: Kezar, Wesley W.
Abstract:: Objectives of this study were to ascertain the effect of fat and urea, used alone or in combination, on rumen cellulose digestion in vitro. A closed in vitro system (24 hour digestion) was used with a 5 x 4 factorial arrangement of treatments to study the effect of added corn...
Resource Type:: Masters Thesis

The effect of feeding tallow, urea and protected tallow on in vivo nutrient digestion in sheep

Creator:: Aseltine, Mark Stephen
Abstract:: Five sheep digestion trials with four animals per treatment and three treatments per trial were conducted to determine if feeding protected tallow and/or protein would alter the deleterious effects of feeding urea and tallow together. Apparent digestibility coefficients, nitrogen retention and biological values were calculated. An additional trial was also...
Resource Type:: Masters Thesis

The effects of urea supplementation on feather meal and hair meal utilization by ruminants

Creator:: Daugherty, Dennis A.
Resource Type:: Masters Thesis

Palatability for cattle of four varieties of ryegrass

Creator:: Aderibigbe, Adeshina O.
Abstract:: This study was designed to determine the relative palatability of four varieties of ryegrass (Gulf, Ninak, Charleston and Billion) based on their relative consumption by cattle and to further evaluate the relationships between daily consumption and individual nutrient components of the grasses. Feedlot trials, chemical analyses for volatile and nonvolatile...
Resource Type:: Masters Thesis

A physiological study of acidosis in ruminants

Creator:: Kezar, Wesley W.
Resource Type:: Dissertation

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

Optimum stocking rate of cattle on three tropical grasses

Creator:: Ortega-Rivas, Eligio
Abstract:: Pangola digitgrass (Digitaria decumbens), Coastcross- 1 bermudagrass (Cynodon dactylon), and Kazungula setaria (Setaria sphacelata cv Kazungula) were used in a two-year study at the C.A.M.P.A. Training Center in Tampico, Mexico. The objective of the study was to determine the optimum stocking rate during the grazing season on these species and...
Resource Type:: Masters Thesis

The effect of ammoniation treatment on the nutritive value of wheat straw for ruminants

Creator:: Herrera-Saldana, Rolando E.
Resource Type:: Masters Thesis

Evaluation of different processing methods on the utilization of steam hydrolyzed feather meal by ruminants

Creator:: Steiner, Robert J.
Resource Type:: Masters Thesis

Effect of different nitrogen sources on molasses-based liquid supplements for cattle

Creator:: Ortega-Rivas, Eligio
Resource Type:: Dissertation

Evaluation of liquefied fish as ruminants feed

Creator:: Shqueir, Adnan Ali
Resource Type:: Dissertation

Evaluation of feather and hair meals as protein supplements for ruminants

Creator:: Aderibigbe, Adeshina O.
Abstract:: The objectives of this study were to nutritionally evaluate various feather and hair meals (FM, HM) as protein supplements for ruminants and to study the in vitro/in vivo relationships of diets supplemented with FM and HM. In vitro (rumen and enzymes) studies, five in vivo digestion trials and a feedlot...
Resource Type:: Dissertation

A study of feeding value and potential toxicity of pulp mill single cell protein in ruminants

Creator:: Atil, Osman Bin
Abstract:: The objectives of this study were to evaluate the feeding value and potential toxicity of single cell protein (SCP) when fed to ruminants. Three in vivo digestibility trials with lambs, one feedlot trial with steers and one long term feeding trial of high levels of SCP with sheep were conducted...
Resource Type:: Dissertation

Taste responses in sheep

Creator:: Goatcher, William Donald
Abstract:: This study involved the use of the two-choice preference test, where the choices were tap water and tap water-chemical solutions, to determine the responses of sheep to ascending concentrations of 20 chemicals (taste stimulants). The chemicals tested were: the sugars, sucrose, maltose, lactose, glucose, fructose and galactose; the sodium salts...
Resource Type:: Masters Thesis

A comparison of taste responses in pygmy goats, normal goats, sheep and cattle

Creator:: Goatcher, William Donald
Abstract:: This study involved the use of the two-choice preference test to determine the taste responses of eight, each, of pygmy goats, normal goats, sheep and cattle to ascending concentrations of sucrose (Suc), sodium chloride (NaC1), acetic acid (HAc) and quinine hydrochloride (QHCI). In addition, sheep and cattle were tested at...
Resource Type:: Dissertation

Effect of some major and trace element interactions upon in vitro rumen cellulose digestion

Creator:: Martinez, Andres
Abstract:: A series of factorial experiments (4 x 4 and 4 x 4 x 4) was designed to investigate the effects of selected combinations of some major and trace elements upon in vitro rumen cellulose digestion. Inocula, varying in ratios of clarified rumen fluid (strained through No. 50 cheesecloth and centrifuged...
Resource Type:: Dissertation

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