Digital Commons Network^™

The Differences Between The Jersey And Holstein Breeds Of Rumination In Early Lactation Using The Activity Monitoring System, Christina Da Rocha

Dairy Science

No abstract provided.

Financial Analysis Of Three Value-Added Dairy Enterprises In Vermont, Wisconsin, And New York, Kassidy Kampen

Dairy Science

Value-added agriculture has grown in recent years and is often promoted as a rural development or business survival strategy. For dairy operations, value-added often has meant adding a processing enterprise to an existing dairy farm. This case study examined whether it was profitable to transition to a value-added operation, comparing and contrasting the business characteristics and financial performance of three businesses of similar size in Vermont, Wisconsin, and New York.

The methods included the development of income statements, balance sheets, and economic costs and returns in order to evaluate the profitability of the farming and processing enterprises for each business. …

Cal Poly Milking Parlor Standard Operating Procedures, Caitlyn Lil Morehart

Dairy Science

The objective of this project is to develop Standard Operating Procedures (SOP’s) for the Cal Poly dairy milk barn, which will help prepare students to be more efficient at milking in the newly renovated milking parlor. A double 10 parallel parlor is to be put into place to update the current milk barn. The current milking parlor is a double 8 herringbone barn which holds eight cows per side that are positioned at an angle. The double 8 herringbone parlor is to be remodeled into a double 10 parallel parlor. In addition, a double 10 parallel barn has ten cows …

Environmental Justice: The Significance Of Race And Class In Determining Areas Of Environmental Pollution, Kaylee Beckman

Natural Resources Management and Environmental Sciences

No abstract provided.

An Examination Of The Motivations, Needs, And Demographics Of Mountain Bicyclists In The West Cuesta Ridge Area Of The Los Padres National Forest, Christopher Devine

Recreation, Parks, and Tourism Administration

Mountain biking has become an increasingly popular sport over the past couple of decades. Despite its popularity, some land managers struggle to understand and keep up with the evolving and heavy use of mountain bikes on their trails. The purpose of this study was to examine the motivations, needs, and demographics of mountain bicyclists in the West Cuesta Ridge Area of the Los Padres National Forest in San Luis Obispo, CA. Data were collected using self-administered questionnaires on site, at two different trailheads. From a sample of 36 subjects, findings included their demographics and preferred trail qualities. The key qualities …

Web Based Marketing Plan For The Polished Pet Boarding Kennel In Santa Maria, Ca, Lauren Marie Frias

Agribusiness

The great recession in the United States has caused consumers to change their spending habits. The recession comes at a time when consumers had already become accustomed to increasing levels of service from sellers of goods and services as businesses incorporate new technologies to attract customers and improve cost efficiencies. Customers are now accustomed to and expect price competitiveness, excellent service, 24 hour availability, convenience and value added amenities. For a business to compete in this environment, it must continually find innovative strategies in the utilization of existing and developing technologies and applications to distinguish it from competitors. At the …

A Cost-Benefit Analysis Of A Fertilizer Lab On A Produce Farm In Santa Barbara County, California, Tyler Adam

Agribusiness

The purpose of this study was to determine if a fertilizer lab would be a cost beneficial way of reducing nitrogen costs and consumption for a medium-sized produce farm (The Farm) in Santa Barbara County, California. A cost benefit analysis was performed to determine if the lab, installed in 2011, would provide a net positive benefit. The analysis compares the costs of the lab to the benefits of the lab. The costs of the lab are the annualized initial investment costs (based on costs incurred in 2011), the operating costs, and the opportunity costs of the lab. The benefit of …

Migrant Farmworkers' Access To Medical Care In The U.S., Jeffrey Mccauley

Agribusiness

This is a meta data analysis of migrant and seasonal farmworkers in the United States to see if they receive adequate medical care when it is required. Not a lot of information is known about this population, and this study is trying to bring to light the problems that migrant and seasonal farmworkers are facing with respect to medical care. Studies were collected from across the United States and analyzed to see if migrant and seasonal workers are having difficulties obtaining medical care. It was found that the majority of migrant and seasonal farmworkers do not receive adequate medical care …

Simulation Of Blood Flow And Nanoparticle Transport In A Stenosed Carotid Bifurcation And Pseudo-Arteriole, Graham Doig, Guan H. Yeoh, Victoria Timchenko, Gary Rosengarten, Tracie J. Barber, Sherman C.P. Cheung

Aerospace Engineering

Numerical simulation of flow through a realistic bifurcated carotid artery geometry with a stenosis has been conducted for comparison to experimental measurements. The behaviour of simplified therapeutic nanoparticles in relatively low concentration was observed using a discrete particle approach. The role of size (diameters from 500 nm to 50 nm) in determining particle residence time and the potential for both desirable and undesirable wall interactions was investigated. It was found that mean particle residence time reduced with decreasing particle diameter, and the percentage of particles experiencing one or more wall interactions increased simultaneously. Further simulations were conducted on a scaled-down …

The Agriculture Industry In California And The Need For Agriculture Education, Stephanie Amador, Sarah Marques

Agricultural Education and Communication

The purpose of this project was to develop a promotional film about agricultural literacy. It was created to promote agriculture education to elementary and middle schools. In order to capture a wide array of opinions the project includes interviews of teachers, school administrators and parents to diversify the support of incorporating agriculture into the classroom. Working with fourth grade students allowed the project to showcase students enjoying agriculture based lessons that incorporated multiple learning styles. The video that was created can be used to highlight student engagement in topics about agriculture. It also shows a variety of support which can …

Analyzing The Correlation Between Overall Likeness And Emotional Responses Before And After The Consumption Of Dairy Beverages, Jessica L. Weber

Dairy Science

In today’s food industry there is a need for more research on the correlation between likeness of a product and what kind of emotional response this may lead to. This has potential to allow the food industry to understand consumer purchase intent and use the data collected from specific studies to gain more insight to repeat purchases. The objectives of this study were to understand more about the relationship between overall likeness of dairy beverage products from initial taste to ending taste as well as how these responses related to the emotional responses of the consumption experience. In two geographical …

Paired Price Comparisons Of Farmers’ Market And Supermarket Produce In San Luis Obispo County, Paulina Janda Swenson

Agribusiness

This study was undertaken to determine whether farmers’ markets or supermarkets in San Luis Obispo County are a better outlet for purchasing fresh produce based on paired price comparisons. Prices of fifteen produce items were chosen but later reduced to six because of seasonality, were observed and recorded at three farmers’ markets and three paired supermarkets over a period of five weeks.

Once all price data was collected, each farmers’ market was matched against their paired supermarket to find which market offered a lower average price. ANOVA tests were then performed to test the mean prices of the two market …

The Relationship Between Rumination And Milk Yield In Early Lactating Holsteins And Jerseys, Jason Borges

Dairy Science

The objective of this study is to determine if there is a direct relationship between rumination and energy corrected milk produced, using a technologic rumination tracking system. This technology is better known as AI24™ and is produced by Micro Dairy Logic: Advanced Dairy Solutions and SCR™, but marketed through Semex. The collar system is able to track rumination, aid in diagnosing illness/injury, predict parturition, and detect estrus in cows. The sophisticated electronic tag monitors a cow’s rumination time, chewing rhythm and time between feed boluses to determine how many minutes per day the cow is ruminating. Each collar is equipped …

Genomic Testing And Method R Variance Components Theory Of Dairy Cattle, Joseph Dewey Coleman

Dairy Science

Abstract

The objective of this study is to determine the change in reliability from non genomic evaluations or Parent Averages to genomic evaluations. Due to recent industry popularity of genomic evaluations the California Polytechnic University, San Luis Obispo, decided to participate in the genetic movement of the dairy cattle industry. Genomic evaluations of both Holstein and Jersey cows at the Cal Poly dairy were chosen based on genetic superiority in order to possibly generate more income for the dairy and increase the herd’s popularity. Leading genomic companies such as Pfizer Animal Health, and GenSeek made genomic evaluation of the Cal …

Effectiveness Of Concrete Cleaning Products On The Cal Poly Dairy Free-Stall Lanes, Andrew Sherman

Dairy Science

No abstract provided.

Internship With Mission Produce, Inc., Joshua Elias Krueger

Agribusiness

No abstract provided.

Safety Hazard Analysis And Corrective Measures For Koot Dairy, Billy Koot

Dairy Science

The objective of the study was to determine any potential safety hazards at Koot Dairy in order to prevent injuries and lawsuits. A hazard walkthrough was performed with employees to help discover hazards and determine the correctible actions that must take place. A farm safety checklist was used to assess some of the most common dairy hazards and to ensure law compliance. The checklist included many potential areas of hazard—first aid and emergency, power and electrical, farm equipment and machinery, farm chemicals, fuel tanks, confined spaces, environment, and workplace policies. After implementing the checklist, it was clear as to what …

2x Compared To 3x Milking Frequency In A California Dairy Herd, Jordan Leal

Dairy Science

No abstract provided.

Determining Immunoglobulin Transfer And The Relationship To Calf Health At Cal Poly Dairy Through The Assessment Of Serum Protein Concentration, Kevin M. Mcevilly

Dairy Science

The objective of this study was to determine the success of current calf management protocols at the Cal Poly dairy by measuring Immunoglobulin (Ig) uptake at 48-hours post-partum, and by following mortality rate through weaning. By measuring serum protein concentrate (SPC) and using it as a direct indicator of Ig uptake we were able to grade the rate of passive immunity. Serum protein concentrate levels were obtained using a refractometer, and were measured in degrees Brix (°Bx). Blood samples were acquired via jugular venipuncture at the 48-hour mark from a mixed breed, mixed gender sample comprised of both Holstein and …

Supplementing Transition Cow Rations With Prequel21 And Stratag To Improve Breeding Efficiency In Jersey Cattle During Summer Months, Brenton Wickstrom

Dairy Science

The objective of this study was to determine if supplementing transition rations with the Omega system produced by Virtus Nutrition could improve breeding efficiency in jersey cattle, with a focus on the summer months of the California central valley. Beginning in March of 2011 the rations for the close up pen, all animals 21 days and under pre-fresh, was supplemented with Prequel21 at a rate to supply each animal with .25 pounds daily. When those animals that were supplemented during the pre-fresh period began calving, the ration for the fresh pen was supplemented with the rumen bypass fatty acid StrataG …

Dna Collection With Performagene Nasal Swabs: Quantity, Quality, And Cost Effectiveness, Robert Kamper

Dairy Science

The objective was to determine the quality and quantity of DNA collected via nasal swab in Holstein and Jersey cows compared to the time taken to collect the samples through a person inexperienced with the Performagene™ LIVESTOCK product. DNA was collected from 100 cows at the California Polytechnic State University San Luis Obispo Dairy. Holsteins (n=47) and Jerseys (n=53) were collected and samples were shipped to Iowa State University where DNA was extracted by Dr. Jim Reecy’s lab. Results were compiled into a spreadsheet based on DNA quantity in ng/ul, and protein to DNA ratios (A260/A280). Extracted DNA was sent …

Empowering Children Living In Poverty In The Huruma Slum, Amy Lepp

Recreation, Parks, and Tourism Administration

Many children living in poverty around the world are unable to attend school and complete an education. When I Grow Up and the Furaha Community Centre have partnered together to provide children of the Huruma slum with an opportunity to attend school and hopefully escape the life of poverty. The purpose of this study was to determine what factors contribute to student success on the Kenya Certificate of Primary Education Examination, and if the program funded by When I Grow Up is addressing factors that will empower students to succeed in their education. Data were collected using a self-administered questionnaire …

Science & The Senses: Perceptions & Deceptions, William D. Stansfield

Biological Sciences

Science requires the acquisition and analysis of empirical (sense-derived) data. Given the same physical objects or phenomena, the sense organs of all people do not respond equally to these stimuli, nor do their minds interpret sensory signals identically. Therefore, teachers should develop lectures on human sensory systems that include some common examples of sensory limitations, variations, deficiencies, malfunctions, and diseases (as discussed herein) because they have important implications for conducting scientific investigations, science education, and introspection that are seldom included in biology textbooks. Students need to be made aware of the human tendency to self deception in order to avoid …

Partial Budgeting Analysis Of On-Site Calf Raising Versus Off-Site Calf Raising, Ashley Diana Oostdam

Agribusiness

This study examined whether it is more cost effective for a dairyman who operates two dairies (A and B) in west Texas to own-raise or custom raise his dairy calves. The two dairies currently raise calves differently: calves are own raised on Dairy A and custom raised on Dairy B. Existing resources would allow a switch to own raising on Dairy B or custom raising by Dairy A, so an analysis of the comparative costs was appropriate.

This study analyzed information on key costs associated with own raising calves on Dairy A during a 135-day period in 2011. Because differences …

Amidst Invasion, Conversion, And Extinction, The Power Of Communication Prevails: An Ethnographic-Inspired Account Of The Chumash Indians, Arielle Mease

Communication Studies

No abstract provided.

President Barack Obama: History In The Making, Fatema Etemadi

Communication Studies

No abstract provided.

Kreative Outlets, Travis Crist, Steve Clark, Jason Peressini

Computer Engineering

With the widespread use of smart phones and the advancement of WiFi technologies, people now have the Internet at their fingertips at all times. Home automation and control has the possibility of becoming the next big technology that can utilize the abundant availability of the Internet. This paper documents the findings and results of a project aimed at developing the infrastructure needed for a home automation system that is accessible anywhere. We implemented a system that utilized a web enabled ethernet connection and RF wireless technology to control AC outlets and provide the user with feedback information about the status …

Design And Construction Of A Solar Operated Gate, Jacob Gardener

BioResource and Agricultural Engineering

This senior project discusses the design and construction of a solar operated gate. A solar panel is used to charge a battery, and then an inverter is used to run a garage door opener off the battery. The garage door opener operates a short lever arm which is connected to a longer lever arm which is connected to the gate. Each component and mounting mechanisms were designed and built to effectively provide the gate opening function. The finished product operates well, the gate opens in about 8 seconds after the button is pressed on the remote controller or wall mount …

Mechanical Integration Of A Versatile Air Suspension Into A Powered Wheelchair, Joel Michael Steinkraus

Master's Theses

Mechanical Integration of a Versatile Air Suspension into a Powered Wheelchair

Joel Steinkraus

It is undeniable that the vibration environment created by prolonged exposure to wheelchair use can cause discomfort for the rider and put him/her at risk of developing more severe medical conditions. While more research must be done to accurately quantify what constitues a harmful vibration environment, improved vibraiton isolation is an essential step. In order to incorporate structurally sound and effetive air suspension systems into motorized wheelchairs, a support structure is necessary. An after market wheelchair suspension system was designed, modeled, built and tested. Approximately 18 inches …

Responsive Materials Via Diels-Alder Chemistry, Gregory Alan Strange

Master's Theses

The corrosion of infrastructure imposes a significant monetary cost, and at times human cost, upon society. Methods to improve corrosion resistance of materials are described herein which utilize the reversibility of the Diels-Alder reaction to impart thermal responsiveness upon materials. Such stimuli responsiveness can potentially play a role in self healing properties which lead to reduced cracking and thus increased corrosion protection.

Reversible Diels-Alder chemistry was utilized to manipulate the surface energy of glass substrates. Hydrophobic dieneophiles were prepared and attached to glass slides and capillaries to yield a nonwetting surface. Thermal treatment of the surfaces cleaved the Diels-Alder linkage, …