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J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Delbert Kruger 2017 University of Wyoming

J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Delbert Kruger

David Delbert Kruger

No abstract provided.


Cost Benefit Analysis Of Genetic Markers In Cattle, Josh Crystal 2017 University of Arkansas, Fayetteville

Cost Benefit Analysis Of Genetic Markers In Cattle, Josh Crystal

Agricultural Economics and Agribusiness Undergraduate Honors Theses

Genetic sequencing in beef cattle (L. Bos Taurus) is expected to aid producers select cattle with traits that enhance profitability. Using data from experimental trials conducted with Angus, Brahman, and their reciprocal cross, this project analyzes the profitability of grazing endophyte infected tall Fescue (L. Festuca arundinacea Schreb.) vs. Bermuda grass (L. Cynodon dactylon) pasture. The study is unique in the sense that actual cow-calf breeding failure rates (open cows were not culled) were tracked from 1991 to 1997 on herds that were bred to calf in spring and either exposed to fungal endophyte (L.Acremonium coenophialum Morgan-Jones and Gams ...


Do Farm Subsidies Affect Crop Diversification?, Chadwick O'Neal 2017 Georgia College

Do Farm Subsidies Affect Crop Diversification?, Chadwick O'Neal

Georgia College Student Research Events

The United States spends $20 billion each year on farm subsidies. Farmers face increased risk and income variation when their crop portfolio is less diversified. It’s possible for farm subsidies to decrease diversification if they are focused on specific crops. Utilizing state level subsidy and agricultural data from the Environmental Working Group, I used econometric analysis to estimate the effect of farm subsidies on crop diversification. I used the number of acres planted from the 15 top most subsidized and grown crops in the United States to derive my dependent variable, the Herfindahl-Hirschman index (HHI). The HHI is a ...


Effect Of Red Cabbage Extract On Minced Nile Perch Fish Patties Vacuum Packaged In High And Low Oxygen Barrier Films, Ayse Demirbas, Yavuz Yagiz, Ziynet Boz, Bruce A. Welt, Eric McLamore, Maurice Marshall, William Pelletier, Amarat Simonne 2017 University of Florida

Effect Of Red Cabbage Extract On Minced Nile Perch Fish Patties Vacuum Packaged In High And Low Oxygen Barrier Films, Ayse Demirbas, Yavuz Yagiz, Ziynet Boz, Bruce A. Welt, Eric Mclamore, Maurice Marshall, William Pelletier, Amarat Simonne

Journal of Applied Packaging Research

Oxidation of polyunsaturated fatty acids (PUFA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in fish causes loss of product quality. Oxidative rancidity causes loss of nutritional value and undesirable color changes. Therefore, powerful antioxidant extracts may provide a relatively low cost and natural means to reduce oxidation, resulting in longer, higher quality and higher value shelf life of foods.

In this study, we measured synergistic effects of red cabbage antioxidant and vacuum packaging on lipid oxidation in fresh tilapia patties using thiobarbituric acid reactive substances (TBARS) assay, peroxide value (PV), pH and color analysis.

Concentrated red cabbage extract was obtained ...


Farm Organizations And Farm Profits In Tama County, Iowa, Clifford C. Taylor, Edgar B. Hurd 2017 Iowa State College

Farm Organizations And Farm Profits In Tama County, Iowa, Clifford C. Taylor, Edgar B. Hurd

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

To learn in detail how farmers in Tama County, Iowa, have combined the elements of their businesses into going concerns, and the financial results which have attended their attempt to secure the most profitably organized farm, is the purpose of this study. It seeks not only to learn the" anatomy" or organization, but also, as far as possible, the" physiology", or operation, of the farming business as found in this area. It compares the organization of these farms in 1921 with that in 1918 and in 1913. These three years, for which data have been secured, represent pre-war conditions, war-time ...


A Study Of The Secondary Effects Of Hill Fertilization, Horace J. Harper 2017 Iowa State College

A Study Of The Secondary Effects Of Hill Fertilization, Horace J. Harper

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

A field, laboratory, and greenhouse study of secondary effects of hill fertilization was made using several different soils as follows: Carrington loam, Webster silt loam, Grundy silt loam, Knox silt loam, Marion silt loam, and Buckner coarse sand. The effect of hill fertilization on the root development of the corn plant was also investigated.

Acid phosphate was found to have a more pronounced effect on the hydrogen ion concentration of the soil solution than either ammonium sulfate or potassium chloride. In most cases the first effect of acid phosphate was to increase the acidity of the soil solution. In poorly ...


Studies In Iodine Feeding, Part I—Potassium Iodide Feeding Beneficial To Young Swine, John M. Evvard, C. C. Culbertson 2017 Iowa State College

Studies In Iodine Feeding, Part I—Potassium Iodide Feeding Beneficial To Young Swine, John M. Evvard, C. C. Culbertson

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

'l'he feeding of iodine in the form of potassium iodide to young growing swine in dry lot and on rape pasture resulted, in three separate experiments, conducted in three different years, in increasing tile average ' daily gain approximately 10 percent, and likewise in decreasing the feed required for one hundred pounds of gain 10 percent.

The pigs receiving potassium iodide made greater dimensional growth in height, in length, and in leg circumference.


Part I—Influence On Starters And Of Air Air Supply, Temperature Of Incubation, And Rates Of Ripening, P. Toens, B. W. Hammer 2017 Iowa State College

Part I—Influence On Starters And Of Air Air Supply, Temperature Of Incubation, And Rates Of Ripening, P. Toens, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Altho starters made with selected cultures have been used for many years, their satisfactory preparation in quantities still remains one of the big problems of the butter-making industry. Data recently reported have proven that starters contain at least two organisms instead of only the common acid producing type, Streptococcus lactis, and while this information has shown that it is necessary to keep a proper balance between the organisms and has indicated the reason for some of the unsatisfactory results in the carrying of starters, it has not provided methods that enable the butter manufacturer to prepare uniformly good starters. The ...


Basisporium Dry Rot Of Corn, L. W. Durrell 2017 Iowa State College

Basisporium Dry Rot Of Corn, L. W. Durrell

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Basisporium gallarum was first found on corn from Bulgaria in 1911 by Bubak and by Arzberger in Ohio in 1913. Coniosporium gecevi Bubak is identical with Basisporium gallarum Moll. The common name of Basisporium dry rot is suggested for the disease caused by this organism.

The dry rot of corn, caused by this fungus, was very prevalent in Iowa in 1923, causing an average damage to the crop of 9.1 percent, while in a few fields from 50 to 60 percent of the ears were infected. The damage consists of moldy and light ears, reduced stand and weak plants ...


Raising Orphan Pigs—Ii, Modifying Cows' Whole Milk With Sugar And Cream; Heat Treatment Of Cows' Whole Milk; Vitamin Modification Of Cows' Whole Milk, John M. Evvard, Quintin W. Wallace, G. V. Glatfelter 2017 Iowa State College

Raising Orphan Pigs—Ii, Modifying Cows' Whole Milk With Sugar And Cream; Heat Treatment Of Cows' Whole Milk; Vitamin Modification Of Cows' Whole Milk, John M. Evvard, Quintin W. Wallace, G. V. Glatfelter

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Summary for Series V

High cream (butterfat) modification of cows' whole milk was found undesirable. Disastrous results followed the feeding of milk rich in fat. The pigs receiving this high fat milk all died. These results corroborated the work of others.

Sugar modification of cows' whole milk, while better than cream (butterfat) modification, was not advantageous.

Cows' whole milk appeared to be a splendid feed for young orphan pigs when fed in conjunction with shelled corn, meat meal tankage and block salt, self-fed, free-choice style.

Summary for Series VI

Straight whole raw milk appeared to hold its own in this ...


Transmissibility And Pathological Effects Of The Mosaic Disease, O. H. Elmer 2017 Iowa State College

Transmissibility And Pathological Effects Of The Mosaic Disease, O. H. Elmer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The investigations reported in this publication deal chiefly with the question of the transmissibility of mosaic disease, both artificially and thru the use of certain insect vectors. Another portion of the report deals with studies which have been made concerning the pathological effect of mosaic in plants and its relation to environmental conditions.


Studies On Streptococcus Paracitrovorus Group, B. W. Hammer, M. P. Baker 2017 Iowa State College

Studies On Streptococcus Paracitrovorus Group, B. W. Hammer, M. P. Baker

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

A study of 124 cultures of S. paracitrovorus from milk, cream and butter confirms the characterization of the group as those streptococci that produce a definite but variable increase in the acidity of milk and a high volatile acidity, which is greatly increased by the adding of citric acid to the milk to be fermented.

Organisms having the same general appearance in litmus milk as S. paracitrovorus. US but which fail to give a high volatile acidity or to show an increased volatile acidity when citric acid is added to the milk are readily isolated from dairy products. Cultures of ...


The Volatile Acids Produced By Starters And By Organisms Isolated From Them, B. W. Hammer, F. F. Sherwood 2017 Iowa State College

The Volatile Acids Produced By Starters And By Organisms Isolated From Them, B. W. Hammer, F. F. Sherwood

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The work done in various laboratories during the last few years has shown that starters, instead of being pure cultures of Skeptococcis lactis, as was at one time commonly supposed, contain two or more organisms, at least one of which produces considerable amounts of volatile acid. Good starters have regularly been found to yield a high and rather definite amount of volatile acidity but natural souring and sometimes poor starters also give a high volatile acidity, so that such an acidity is no guarantee as to the quality of a starter. This indicates that while the amount of volatile acid ...


Index To Vol. Vi, Research Bulletins, Nos. 80–88, 2017 Iowa State University

Index To Vol. Vi, Research Bulletins, Nos. 80–88

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

No abstract provided.


Agricultural Research Bulletins, Nos. 80–88, 2017 Iowa State University

Agricultural Research Bulletins, Nos. 80–88

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

No abstract provided.


What Is Meant By Crop Availability Of Manure Nutrients?, John Sawyer, Antonio P. Mallarino 2017 Iowa State University

What Is Meant By Crop Availability Of Manure Nutrients?, John Sawyer, Antonio P. Mallarino

John E. Sawyer

Nutrient management guidelines in Iowa and other states use the words “manure nutrient availability” when suggesting manure application rates to supply nutrients needed by crops. People are sometimes confused about the meaning of the word “availability.” In fact, manure management guidelines across the region vary in the exact use and this contributes to confusion. Interestingly, Webster’s Ninth New Collegiate Dictionary includes “plant” and “nitrogen” in the definition of “available.” One definition is “present or ready for immediate use”, and another definition is “present in such chemical or physical form as to be usable (as by a plant) <~ nitrogen> …” So, why ...


Sensing Nitrogen Stress In Corn, John Sawyer, John Lundvall, Jennifer Hawkins, Dan Barker 2017 Iowa State University

Sensing Nitrogen Stress In Corn, John Sawyer, John Lundvall, Jennifer Hawkins, Dan Barker

John E. Sawyer

Determining the proper nitrogen (N) fertilization rate is important for the economic viability of corn production. A desire for high yields, fueled by low fertilizer N costs, led producers to apply rates that ensured adequate N rather than risk costly yield losses due to a shortage of N. Due to water quality concerns and recently high N fertilizer prices, management strategies are needed that can improve the efficiency and profitability of N use. With N application rates based on economic return instead of maximizing productivity, producers want to confirm that rate decisions are working adequately. Also, if unexpected N losses ...


Manure Resources, Jeffery Lorimor, Antonio Mallarino, John Sawyer, John Creswell 2017 Iowa State University

Manure Resources, Jeffery Lorimor, Antonio Mallarino, John Sawyer, John Creswell

John E. Sawyer

Using manure as a resource.


Nitrogen Application, John Sawyer, John Creswall 2017 Iowa State University

Nitrogen Application, John Sawyer, John Creswall

John E. Sawyer

Nitrogen (N) management planning for corn production.


Nutrient Management Plan, Antonio Mallarino, John Sawyer, Barbara Stewart, John Creswell 2017 Iowa State University

Nutrient Management Plan, Antonio Mallarino, John Sawyer, Barbara Stewart, John Creswell

John E. Sawyer

Management tools to help you develop a nutrient management plan and use the Iowa Phosphorus Index.


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