Digital Commons Network^™

Going After It, Stacia Momburg

Cal Poly Magazine

No abstract provided.

Close To The Action, Rachel Henry

Cal Poly Magazine

No abstract provided.

Cal Poly Entrepreneurship Forum To Highlight Technology In Health April 2, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly Workshop To Highlight New Methods For Assessing Agricultural Nutrient Levels May 17, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly University Police Investigate Vandalism In Cerro Vista Residence Hall, Public Affairs Office

Press Releases

No abstract provided.

Academic Senate - Meeting Minutes, 3/12/2013, Academic Senate

Academic Senate Minutes

No abstract provided.

Cpe 200: Small Bear Project, David Burke, Devin Tang

Computer Engineering

CPE 200 is an elective course designed for sophomores in the Computer Engineering Department. This project was intended to design the class, such that, students will understand the skills a computer engineer develops and how to apply those skills.

A Multispecies Avian Abundance Analysis In Riparian And Oak Woodland Habitats On The California Central Coast, Jacy Hyde

Biological Sciences

I investigated the abundance and diversity of riparian and oak woodland birds in a section of the Los Padres National Forest in Coastal Central California. Point counts were conducted in Oak Woodland and Riparian habitats during the summer of 2012. Point counts were replicated in time (2x) and space (25 replicates). The data were analyzed using Program Distance to correct for differing detection probabilities between species and habitat types. The two habitat types showed no significant difference in species richness. For most species, there was no difference in density between riparian and oak woodland habitats. However, the two species with …

Sire Evaluation For Milking Duration, James Macedo

Dairy Science

The objective of this study was to utilize electronically recorded data from on-farm milk recording systems and herd management software to determine if a sire has a genetic influence on his daughter’s milking duration. Measurements of milking duration from three dairy facilities were taken between January 27, 2013 and January 31, 2013. These measurements supplied 25,070 observations, corresponding to 9,418 cows and 895 sires. These data were evaluated with a SAS alongside a herd-mate comparison. The statistical analysis demonstrated that a sire does have a genetic influence on the milking duration of his progeny. The Van Beek Brothers and Dairyland …

Development Of A Nonfat Drinkable Yogurt For The Cal Poly Creamery, Timothy Voros

Dairy Science

No abstract provided.

Gas Emissions And Olfactometry For Dairy Heifers, Rebecca Gary

Dairy Science

The objective of this study was to determine any trends in odor evaluations and gas emissions of manure samples in heifers fed high/low concentrate and high/low forage diets. Heifers (n = 8) were enrolled randomly in a split plot design with diet type (high concentrate vs. low concentrate) as the whole plot and forage quality (4 different levels of corn stover within each diet type) as sub-plots in a 4-period (21d) 4X4 Latin square design. Total collection of urine and feces was performed on days 18-21 of each period. The feces to urine ratio (F:U) was determined on days 18 …

Development Of A Training Program For The Cal Poly Creamery, Rachel Souerbry

Dairy Science

No abstract provided.

Milking Jersey’S Vs. Holstein’S On A Commercial Dairy In California: Milk Production, Feed Efficiency, Intake, Costs, And Advantages., Garret Te Velde

Dairy Science

In this study, data from six Holstein dairies in California and four Jersey dairies were examined. Dairies were compared on 3.5% energy corrected milk, feed intakes, feed efficiency, feed costs per milking cow, and feed costs per hundred weight. Both Holstein and Jersey dairies had information taken from the months of September and May to observe the effects of weather on production and feed intakes, and so credible data could be determined for the year of 2012. For milk production the six Holstein herds produced an average of 70.925 lbs of energy corrected milk, while the four Jersey herds produced …

The Promotion And Scale Of Specialty Dairy Products In The United States, Lindsey Mendes

Dairy Science

The objective of this paper is to determine the growth and future scale of artisan dairy products. The purpose of this paper is to analyze why there has been such a great demand for artisan dairy products, how they are produced, and the promotion and scale of the specialty dairy industry product production.

The review begins with a brief discussion on the different terms used for specialty dairy products. Followed by the introduction is history of the dairy industry and its growth and change over many, many years. Dairy products have been around longer than they have actually been recorded. …

Pasteurization And Freezing Effect On Colostrum Characteristics, Morbidity, Igg Absorption, And Growth Rates Of Holstein Heifer Calves, Rob Diepersloot

Dairy Science

The objective of this study was to determine if fresh frozen, pasteurized frozen, or fresh refrigerated colostrum impacted morbidity, growth rates, and the overall serum immunoglobulins (IgGs) in newborn calves. The second objective was to compare the effects that pasteurization and freezing had on colostrum IgG concentration and total bacteria counts compared to raw refrigerated colostrum. A controlled trial was completed on a 6,000-cow dairy in California where colostrum was harvested twice daily, pooled, and then divided into three different treatment groups and processed accordingly. One treatment was pasteurized at 60^oC for 60 min and then frozen, the …

Effects On Jerseys And Holsteins, Milk Production, Intake, And Feed Efficiency, Michael Areias

Dairy Science

The objective of this literature review was to determine if it is more efficient and cost effective to use Jerseys instead of Holsteins for milk composition and production. In respect to the animals Dry Matter Intake (DMI), and its environmental impact. To research if you can make more money per animal with less ground, less input, and less production with a certain much smaller breed, such as Jerseys. This paper reviewed important aspects of the two breeds that are relevant and practical to producers. The ideas and opinions presented in the paper are a result of a review of the …

Detecting Errors In Generating A Certificate Of Analysis, Breanne Harlan

Dairy Science

Many companies rely on a Certificate of Analysis (COA) to accompany the delivery of their product or material. The COA, required by law, prevents customers from questioning whether a product is safe and ensures manufacturers confirm every product tested passes the Food and Drug Administration’s required specifications. Previous to this project, Kraft Foods Springfield copied their test results for each product from their data warehouse software, called Systems, Applications, and Products onto a Word document to create a COA. This was a systematic approach to detect the possible occurrences of error and reduce the time spent on generating a COA. …

The Best Alternative Bedding Source With Regards To Mastitis And Cow Comfort, David De Jager

Dairy Science

There are many different bedding sources that you can choose to help prevent mastitis and overall cow comfort and wellness. Many aspects are involved when searching for the best alternative source of bedding. The goal of this literature review is to determine the optimum alternative-bedding source in regards to mastitis control and cow comfort. This literature review was guided by analyzing thirty-five journal references, which regards mastitis and sources of bedding. The most common sources of bedding are sand, recycled manure, mattresses, and sawdust. Each bedding sources has advantages and disadvantages, which you can make the case for each bedding …

Milking Protocols At The Cal Poly Dairy Farm, Kevin Mohan

Dairy Science

Milking parlors are the center of a dairy operation and directly responsible for its profits, yet dairy training is frequently neglected and often lackluster. The Cal Poly dairy farm, despite having a milker pool that is comparatively inexperienced with farm labor has no written manual for training of milkers. This results in a workplace that in the event of an accident or point of confusion leaves workers nowhere to turn to for clarification save contacting a supervisor directly. It also may also result in a lack of established guidelines, and a frequent need for clarification due to misunderstood expectations and …

Effectiveness Of Cleaners And Sanitizers In Killing Spore-Forming Bacteria, David Valenzuela

Dairy Science

The objective of this study was to determine the effectiveness of the selected cleaners and sanitizers in killing spore-formers by preventing, treating or reducing the effects of problem spores in the dairy export industry. The chemicals used in this experiment to test against the spore-forming bacteria were Chlorine (Kem-Tek chlorinating liquid), Mandate Plus (Ecolab Clean-in-Place acid sanitizer), HD Acid PL-10 (Ecolab acid detergent for pipeline and bulk tank equipment), and Principal (Ecolab chlorinated mechanical and CIP cleaner for protein soils). The Bacillus licheniformis concentrated solution was provided by the Dairy Products Technology Center at California Polytechnic State University. Data on …

A Review Of The History And Motivations Of Animal Identification And The Different Methods Of Animal Identification Focusing On Radiofrequency Identification And How It Works For The Development Of A Radiofrequency Identification Based Herd Management System On The Cal Poly Dairy, Manuel Silveira

Dairy Science

My objective for this senior project was to perform an extensive review of literature on the history of animal identification and common motivations for identifying livestock, the different types and methods of identifying animals, with a special focus on radiofrequency identification technology (RFID) and how it works. A secondary objective was creating an instructional booklet for the implementation of a RFID based management system on the Cal Poly dairy. The identification of livestock for management or disease traceability has been a practice in one form or another for centuries (Blancou, 2001). Today, animal identification is of great importance to herd …

The Analysis And Comparison Of Organic Dairy Operations And Conventional Dairy Operations In Terms Of Milk Quality, Animal Health, Nutrition, Market Aspects And Economic Benefits, Lianne Michele Nunes

Dairy Science

The dairy industry in California has two very vital sectors that make up the production and marketing landscape: Organic and Conventional dairy production systems. The objective of this review of literature is to explore the differences and contrasting views of milk quality, reproduction, animal health, nutrition, market aspects and pricing systems within each industry and determine how each industry has the potential for tremendous success among its producers. It is important to understand the aspects of each industry because of the advantages and disadvantages each industry imposes on different producers located all around the state. Organic production systems have very …

Is Obesity Socially Contagious?, Ciani Jean Sparks

Statistics

The main objective of this paper is to analyze three different articles that discuss whether obesity could be socially contagious. According to the World Health Organization in 2013, obesity is the fifth leading risk for deaths around the world. This disease has dramatically increased in the last decade, which has led scientists to believe there are other factors contributing to the epidemic besides genetics. The first article I analyzed, written by Nicholas Christakis and James Fowler, provided a logistic regression model to estimate the odds of a person becoming obese. The model included the explanatory variables: age, sex, education, smoking …

Portable Hammock Stand Design And Business Model Development, Evan Keith

Industrial Technology and Packaging

Currently hammocks are thought of as stationary relaxation devices that use tress as support structures. The industry mainly focuses on hammock innovation over the way in which the hammock is actually hung. Having been around for thousands of years, reinventing the idea of the hammock is not something that is occurring or has been thought of.

This senior project proposes the idea of a portable or more adaptable hammock stand. It takes the idea of hammocks as stationary devices to them being something that can be taken almost anywhere. Shifting how hammocks are thought of and exposing the potential they …

Effects Of Sample Taste-Testing On Gluten Free Awareness And The Likelihood To Purchase Udi’S Gluten Free Products On Cal Poly San Luis Obispo’S Campus, Kylee Anne Gibson

Agribusiness

Celiac disease is becoming an increasingly recognized autoimmune pathology of the intestine caused by permanent intolerance to gluten (Niewinski 2008). For those with Celiac disease, or gluten intolerance, gluten-free foods are hard to come by, especially on college campuses. Eating gluten free products has positive health effects on numerous diseases. It has been shown that eating gluten free foods can help alleviate symptoms of numerous diseases such as ADHD, autism, and type 2 diabetes (UDI’s Gluten Free website 2012). Throughout the past few years, more gluten free companies have been advocating to promote their products on college campuses for people …

The Preferences In Wine Of Various Aged Consumers, Jacob Clinite

Agribusiness

No abstract provided.

Effect Of Post Manufacture Thermal Dip Treatment On Proteolysis Of Commercial String Cheese During Storage, Melissa Karen Hsu

Master's Theses

String cheese, a Mozzarella cheese, has the unique ability to string in fibrous strands when pulled apart. Graders judge string cheese by its stringy texture; samples with copious amounts of string are awarded high ratings. But just as the texture of natural cheeses softens with time, the stringy texture of string cheese can diminish with age too.

Age related softening in cheese is due primarily to an important biochemical event known as proteolysis, which is attributed to inherent milk proteinases, residual coagulant activity, and enzymes from the lysis of starter culture microorganisms. It is hypothesized that a post manufacture heat …

Application Of Assignment Problem Theory To Cal Poly's Week Of Welcome Program Presentation Schedule, Kevin T. Aban

Industrial and Manufacturing Engineering

The Week of Welcome (WOW) is a part of Cal Poly’s Orientation Programs. One of the main objectives of WOW is to provide content to new students on a variety of different topics in the form of Awareness Presentations. The problem being addressed in this paper is that of assigning the orientation groups of incoming students to these Awareness Presentations so that they have a schedule that meets all of the necessary criteria. The most important of those requirements is schedule balance and flexibility for future use. This scheduling problem is solved through the use of operations research and binary …

Britain’S Kitchen Front: British Perceptions Of The Food Situation And Women’S Attitudes During The Second World War (February 1942), Marissa Nicole Millhorn

History

No abstract provided.

Consumer Perception Of Organic Milk, Christina Puetz

Dairy Science

The objective of this study was to determine the potential factors, reasons and beliefs that contribute to college aged consumers’ choice to purchase organic milk. The data were from survey of students using questions that were modeled after consumer issues and concerns over conventional milk as discussed in the literature review. This study was particularly interested in exploring differences between students in agriculture classes and non-agriculture classes. The literature referenced came from a variety of sources, including scientific journals, online articles, milk advisory boards, and governmental agencies. According to the literature review, consumer concerns and reasons for purchase of organic …