Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

South Dakota State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 5101 - 5130 of 8049

Full-Text Articles in Entire DC Network

Meeting The Protein Needs Of Growing And Finishing Cattle, William W. Schneider Nov 1973

Meeting The Protein Needs Of Growing And Finishing Cattle, William W. Schneider

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

The cost of nearly all feed commodities has sharply risen since one year ago. Those feed ingredients normally used as natural protein sources, however , have risen in cost much more dramatically than the roughages or the cereal grains used for animal feed. This substantial rise in cost of high protein feeds plus possible shortages of feed grade urea will force many cattle feeders to alter feeding and management practices used in the past. For example, recommendations in previous years frequently called for the use of soybean meal or soybean meal based supplements as the source of protein in growing …

Go to article

Effects Of Confinement Feeding Systems On Beef Cattle Production, R.D. Goodrich, J.C. Meiske, R.E. Smith, H.E. Henke Nov 1973

Effects Of Confinement Feeding Systems On Beef Cattle Production, R.D. Goodrich, J.C. Meiske, R.E. Smith, H.E. Henke

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

Several factors have stimulated interest in housing systems for feedlot cattle. Some of these factors are (1) the desire to eliminate problems associated with the use of bedding, (2) the desire to decrease the labor required for feeding, bedding and manure handling, (3) the need to develop effective pollution control measures and (4) the desire to know the effects that housing systems may have on the performance and carcass characteristics of feedlot cattle. The objectives of the trials reported herein were (1) to study the influence of housing systems on the performance of finishing steer calves and (2) to study …

Go to article

Carcass Characteristics Of Bulls, Heifers And Steers As Influenced By Ration And Market Weight, Peter B. Smith, W.J. Costello, Peter J. Thiex, L.B. Embry Nov 1973

Carcass Characteristics Of Bulls, Heifers And Steers As Influenced By Ration And Market Weight, Peter B. Smith, W.J. Costello, Peter J. Thiex, L.B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

High feed grain prices, a growing worldwide demand for animal protein, and increasing demand for lean, high quality beef make it imperative that beef volume and production efficiency increase. Because of high feed costs it is important to know how concentrate level in the ration and market weight influence production efficiency and carcass composition of different sex groups. The purpose of this study was to evaluate the effects of market weight and ration concentrate level on the quant itative and qualitative carcass traits of yearling bulls, bull calves, heifers and steers .

Go to article

Investigation Of Western Yellow Pine (Pinus Ponderosa) Abortion, C. Cogswell, L.D. Kamstra Nov 1973

Investigation Of Western Yellow Pine (Pinus Ponderosa) Abortion, C. Cogswell, L.D. Kamstra

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

For a number of years, ranchers in western South Dakota have been of the opinion that pregnant cows will abort after the consumption of sufficient quantities of yellow pine (Pinus ponderosa) needles. Problem areas exist where the yellow pine is the predominant pine species. Incidence of pine needle abortion is particularly high in late winter and early spring after cows in the last trimester of pregnancy graze on the needles. Some ranchers, however, have experienced the problem throughout the year when cows in earlier stages of pregnancy have aborted. Retained placentas are frequently associated with the abortions. If true abortions …

Go to article

Growth Stimulating Products For Feedlot Heifers Fed High-Concentrate Diets Of High-Moisture Corn, J.D. Burkhardt, L.B. Embry Nov 1973

Growth Stimulating Products For Feedlot Heifers Fed High-Concentrate Diets Of High-Moisture Corn, J.D. Burkhardt, L.B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

This experiment was one in a series to determine the response by fee dlot heifers to various growth promoting products . Products tested were diethylstilbestrol (DES), zeranol and melengestrol acetate (MGA) under conditions of high-concentrate diets with high-moisture grain and hay or haylage.

Go to article

Growing And Fishing Bulls, Heifers And Steers, P.J. Thiex, L.B. Embry Nov 1973

Growing And Fishing Bulls, Heifers And Steers, P.J. Thiex, L.B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

Growth rate of an animal depends upon energy consumed in excess of that for maintenance, and the requirements increase as the animal grows and fattens. Male and female cattle differ in rates of growth and fattening, but changes may be brought about by castration. There still is some concern as to the effects of market weight and energy content of rations on weight gain, feed efficiency and carcass characteristics of feedlot bulls, heifers and steers. This experiment was conducted to study these factors. Bulls ( calves and yearlings), heifers and steers were fed to one of two final weight groups. …

Go to article

Storage Methods And Protein Supplements For High-Moisture Ear Corn, W.S. Swan, L.B. Embry Nov 1973

Storage Methods And Protein Supplements For High-Moisture Ear Corn, W.S. Swan, L.B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

A high rate of gain can be obtained with growing and finishing cattle fed ear corn adequately supplemented with protein, minerals and vitamins. The cob portion of the ear furnishes more roughage than has been reported to result in optimum gains with minimum problems frequently associated with high-concentrate diets. Other roughages are not indicated with ear corn where high rates of gain are desired. Ear corn contains less protein than recommended in most diets for growing and finishing cattle. The low protein cob portion may not be an economical source of roughage in comparison to those considerably higher in protein …

Go to article

Weaning Age And Management Systems For Fall Born Beef Calves, William Mccone Nov 1973

Weaning Age And Management Systems For Fall Born Beef Calves, William Mccone

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

Seventeen registered Angus, Hereford and Shorthorn cows calved in September, 1972. The cows calved on pasture and remained on pasture until early November. From November 10 to December 29, the cows were bred for 1973 fall calves. On December 29, 1972, one-half of the calves were weaned and started on a self-fed ration. The remaining one-half of the calves were allowed to continue nursing the cows, but the calves also had access to a creep feeder containing the same ration used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and …

Go to article

Adaptation Of Feedlot Cattle To Urea And Antibacterial Compounds, J.D. Burkhardt, L.B. Embry, L.B. Dye Nov 1973

Adaptation Of Feedlot Cattle To Urea And Antibacterial Compounds, J.D. Burkhardt, L.B. Embry, L.B. Dye

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

A period of adaptation to urea during which feedlot performance is suppressed is frequently experienced when this product is added to rations of cattle not previously, or recently, fed it. This effect appears more evident with levels of urea used when it forms a major part of total protein in the ration. Urea and antibiotics in combination are common additions to protein supplements or mixed rations. At usual levels for continuous feeding of antibiotics and safe levels of urea for the dietary conditions, the combination appears satisfactory and to offer the beneficial effects from these compounds after a suitable period …

Go to article

Backgrounding Of Feedlot Cattle - Levels Of Grain On Pasture, L.B. Embry Nov 1973

Backgrounding Of Feedlot Cattle - Levels Of Grain On Pasture, L.B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

Utilization of appreciable quantities of roughage for growing and finishing feedlot cattle means some restriction on rate of production in comparison to that obtained from diets containing more liberal quantities of concentrates. Periods of restricted growth of cattle have been shown to be followed by an accelerated rate of growth with an improvement in feed efficiency in comparison to more liberally fed animals during later finishing periods with high-concentrate diets. Thus, there can be some compensation in both rate and efficiency of gain following periods of restriction. However, the amount of compensation may vary depending upon the comparative degree and …

Go to article

Seventeenth Annual Cattle Feeders Day, Animal Science Department Nov 1973

Seventeenth Annual Cattle Feeders Day, Animal Science Department

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1973

These are the complete proceedings of the seventeenth annual Cattle Feeders Day held on November 2, 1973 at South Dakota State University.

Go to article

Egg Yolk Pigmentation As Influenced By Alfalfa Meal And Various Concentrates, E. Guenther, O. E. Olson, C. W. Carlson Oct 1973

Egg Yolk Pigmentation As Influenced By Alfalfa Meal And Various Concentrates, E. Guenther, O. E. Olson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

This study was a continuation of testing natural and synthetic materials in the production of deeply pigmented egg yolk. Thus far ß-apo 8' carotenoic acid ethyl ester (BACE) has been the most efficient pigmenter used, followed by ß-apo 8' carotenal (BAC) and then various alfalfa concentrates, alfalfa or corn gluten meal and marigold meals. There has been a tendency for enhanced yolk color when the synthetic pigmenters were fed with alfalfa, suggesting synergism. This study was therefore conducted to determine if fractions of alfalfa meal with little or no xanthophyll would enhance the utilization of pure pigmenting material.

Go to article

Comparisons Of A Midget Vs. A Standard Sized Strain Of Laying Hens, E. Guenther, C. W. Carlson Oct 1973

Comparisons Of A Midget Vs. A Standard Sized Strain Of Laying Hens, E. Guenther, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Two new strains, one standard sized and the other approximately 70% as large, were acquired and tested for performance. The chicks were grown in floor pens to 20 weeks of age on standard growing diets and then placed in 12- and 16-inch layer cages. The hens were placed in cages at normal and high density, i.e., 3 or 4 hens per 12-inch cage and 4 or 5 hens per 16-inch cage. All were fed the same diet, 16% crude protein and 2900 Gal. M.E. The test lasted 10 months.

Go to article

Effects Of Egg Fat And Corn Oil On Blood Lipids And Fatty Acid Parameters In Adult Rats, R. A. Nelson, C. W. Carlson Oct 1973

Effects Of Egg Fat And Corn Oil On Blood Lipids And Fatty Acid Parameters In Adult Rats, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Recent criticisms of eggs, milk and animal fats have caused Americans to become more aware of the type of diet they are eating. Although no well-controlled studies have shown these foods to increase the chances for a heart attack, doctors continue to advise their patients to consume less milk, eggs and animal fats.

Go to article

Flock Record Summary, Phillip E. Plumart, Boyd J. Bonzer Oct 1973

Flock Record Summary, Phillip E. Plumart, Boyd J. Bonzer

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

A computerized flock record keeping system has been developed at South Dakota State University. A report Is computed and published monthly from data received from approximately 60 flockowners. The records of those flocks completing their laying cycle during the calendar years of 1968, 1969, 1970, 1971, 1972 and through June of 1973 are summarized In Table 1.

Go to article

Reported Diseases Of South Dakota Poultry, M. W. Vorhies Oct 1973

Reported Diseases Of South Dakota Poultry, M. W. Vorhies

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Diseases of poultry in South Dakota reflect the importance of the infections and metabolic problems.

Go to article

Answering Farm Questions With The Sdsu Computer, Phillip E. Plumart Oct 1973

Answering Farm Questions With The Sdsu Computer, Phillip E. Plumart

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Few farmers can afford to buy a computer, but there are thousands who are renting computer services today. The Indications are that more will be doing so as farm management questions become more complex and move rapidly beyond easy pencil-and-paper calculations.

Go to article

Factors Influencing Calcification In The Fowl, C. W. Carlson, C. E. Holmquist, R. A. Nelson Oct 1973

Factors Influencing Calcification In The Fowl, C. W. Carlson, C. E. Holmquist, R. A. Nelson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Previous studies with turkey poults have often produced erratic results in terms of whether or not there is a need for crude supplements in the glucoseisolated soy diet for obtaining maximum growth and bone calcification. It seemed apparent that some of the differences were due to variation in carry-over of factors influencing calcification from the dam to the poult.

Go to article

Some Effects Of Copper Sulfate, Copper Oxide And 4-Nitrophenylarsonic Acid On Aortic Rupture And Growth Of Turkeys, E. Guenther, C. W. Carlson Oct 1973

Some Effects Of Copper Sulfate, Copper Oxide And 4-Nitrophenylarsonic Acid On Aortic Rupture And Growth Of Turkeys, E. Guenther, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Previous studies have shown that adding copper, as copper sulfate, to raise the copper level to 120 ppm in low and high protein diets resulted in Increased weight gains and reduced incidence of aortic ruptures. Without copper additives the diets contain 8 to 12 ppm Cu. In all previous studies, 4-nitrophenylarsonic acid was used as a blackhead preventative. It is acknowledged that "4-nitro" depressed growth. Also sulfate ions, from various sources, have shown a sparing effect on the sulfur amino acids, thereby promoting growth. These facts raised several questions. Does the added copper promote growth by suppressing toxicity of "4-nitro" …

Go to article

Sublethal Effects Of Mercury On Growth And Reproductive Performance Of Layers, R. J. Emerick, C. E. Holmquist, R. A. Nelson, C. W. Carlson Oct 1973

Sublethal Effects Of Mercury On Growth And Reproductive Performance Of Layers, R. J. Emerick, C. E. Holmquist, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Mercury in our environment has been implicated in egg shell thinning and poor hatchability among various species of wild birds. We have used domestic chickens to determine the effect of a range of sublethal levels of two dietary mercury compounds, i.e., inorganic mercuric chloride and organic methylmercuric chloride.

Go to article

Fifth Annual Poultry Field Day, Animal Science Department Oct 1973

Fifth Annual Poultry Field Day, Animal Science Department

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

These are the complete proceedings of the fifth annual Poultry Field Day held on October 25th, 1973 at South Dakota State University.

Go to article

Neo-Terramycin And Egg Production, C. E. Holmquist, R. A. Nelson, C. W. Carlson Oct 1973

Neo-Terramycin And Egg Production, C. E. Holmquist, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Do modem laying hens need antibiotics for maximum reproductive performance? Although previous reports have shown little or no advantage for their use, there needs to be an occasional check made on this question. Pullets were made available for such a study at the Poultry Research Center this year.

Go to article

Dietary Energy Level And Copper Source And Their Effects On Fat Composition Of Turkeys, R. A. Nelson, C. W. Carlson Oct 1973

Dietary Energy Level And Copper Source And Their Effects On Fat Composition Of Turkeys, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Research suggesting a relationship between diet and blood cholesterol levels has caused people to become more concerned about the type of fat in their diets. If the claims by the American Heart Association turn out to be right, the livestock and meat industries need to be ready to meet the change in consumer demand. Past experiments at this station have shown that fat type could be readily altered by diet. Other research with swine has shown copper additions increase the level of unsaturated fats.

Go to article

Effects Of Moisture On The Nutritive Value Of Fermented Soybeans For Chick Growth, C. C. Chah, C. W. Carlson, G. Semeniuk, C. W. Hesseltine Oct 1973

Effects Of Moisture On The Nutritive Value Of Fermented Soybeans For Chick Growth, C. C. Chah, C. W. Carlson, G. Semeniuk, C. W. Hesseltine

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

It is widely recognized that the most important factor in growth of a fermenting organism is the moisture of or relative humidity (RH) surrounding a natural substrate. Mold spores have different minimum water requirements at different temperatures and the presence or absence of nutrients also affects water requirements for growth. Hence, three experiments were designed to investigate the influence of moisture content on the nutritive value of the fermented preparations for chick growth.

Go to article

Selenium Supplementation Of Layer Diets Based On Milo And Soybean Meal, E. Guenther, C. W. Carlson, O. E. Oison Oct 1973

Selenium Supplementation Of Layer Diets Based On Milo And Soybean Meal, E. Guenther, C. W. Carlson, O. E. Oison

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Previous studies with com-soy diets have shown laying hens to have improved feed efficiency when the diets were supplemented with up to 2 ppm selenium. In some cases, egg production was Improved, but in most instances feed intake was simply reduced without causing a decrease in egg numbers. A study was therefore conducted with a milo-soy diet to further evaluate this treatment.

Go to article

Summary Of Costs And Income Of Layer Flocks On Sdsu Record Program, Boyd J. Bonzer, Phillip E. Plumart Oct 1973

Summary Of Costs And Income Of Layer Flocks On Sdsu Record Program, Boyd J. Bonzer, Phillip E. Plumart

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Sixteen flockowners cooperating in the South Dakota State University Computerized Flock Record Keeping Program submitted operating costs, fixed costs and hired labor figures after their flocks were closed between March, 1972, and June, 1973.

Go to article

Amino Acid Supplementation Of Low Protein Layer Diets With Glycine, Glutamic Acid, Threonine And Valine, H. Choudbury, C. W. Carlson Oct 1973

Amino Acid Supplementation Of Low Protein Layer Diets With Glycine, Glutamic Acid, Threonine And Valine, H. Choudbury, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Previous studies have shown near maximum performance from laying hens when a 16% protein diet diluted to 10% protein with glucose was supplemented with 0.15% DL-methionine, 0.19% L-lysine and 0.04% DL-tryptophan. A supplement of 0.20% DL-isoleucine caused the hens to produce a small but significantly increased number of eggs. Glycine at 0.5% tended to favor the response from Isoleucine, suggesting Its requirement for maximum utilization of amino acids.

Go to article

Turkey Performance As Influenced By Egg Dipping, E. Guenther, C. W. Carlson Oct 1973

Turkey Performance As Influenced By Egg Dipping, E. Guenther, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

This experiment has not been completed. The data shown were obtained at 12 weeks. Eggs from a breeder flock with a known history of Mycoplasma gallisepticum infection were dipped in a solution containing a combination of 2800 ppm Tylan and 2000 ppm Neomycin before incubation. The eggs were first dipped in warm water (98°F) for 5 minutes and then into the cold (38°F) antibiotic solution for 10 minutes. Batches of 50 eggs increased in weight 6 to 18 grams from this treatment, thus showing an average uptake of 0.68 mcg of tylosin and 0.49 mcg of Neomycin of the eggs …

Go to article

Some Effects Of Low Protein Grower Diets At Two Energy Levels Fed With And Without Antibiotics On Subsequent Egg Production, C. E. Holmquist, R. A. Nelson, C. W. Carlson Oct 1973

Some Effects Of Low Protein Grower Diets At Two Energy Levels Fed With And Without Antibiotics On Subsequent Egg Production, C. E. Holmquist, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1973

Numerous studies, including several at this station, have shown that layer type pullets can tolerate diets as low as 10 to 12% protein during the growing period. In fact, subsequent reproductive performance of pullets reared on such diets has been just as good as that of pullets reared on diets of higher protein content. Other work has shown that use of low energy grower diets, i.e., 1800- 2300 Calories of Metabolizable Energy per kilogram, have produced pullets capable of performing as well or better than those reared on higher energy diets, 2800- 3100 Gal./kilogram. Layer house mortality has generally been …

Go to article

Sdsu Collegian, October 24, 1973, Student Association Of South Dakota State University Oct 1973

Sdsu Collegian, October 24, 1973, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 82, No. 9

Go to article

First Prev Next Last