Digital Commons Network^™

Lameness And Locomotion Scoring Of Dairy Cows, Haley Lynne Aquino

Dairy Science

No abstract provided.

Algae As An Economical Protein Source For Dairy Cattle Nutrition, Brian Azevedo

Dairy Science

Dairying continues to change with economic and environmental demands of today’s fast moving society. Feed costs continue to rise and now account for a large majority of expenses on dairies; especially protein, which has become expensive to purchase. I believe that Algae can serve as a possible solution to aid in alleviating this problem. Algae grow rapidly and consume undesirable carbon dioxide to release oxygen to the environment, making it an environmentally friendly source of feed. There are particular strands of algae that are high in protein. During the course of this project, I intend to discover how effective protein …

Usage Of The Penn State Forage Separator For Evaluating Particle Size Of Tmrs, Ashley Rene Garcia

Dairy Science

Particle size has many effects on the cow. Adequate forage particle length is necessary for proper rumen function. Dairymen are also having a hard time measuring particle size. Proper particle size distribution of feeds is an important part of ration formulation. Management of forage particle size starts with harvesting forages at the proper stage of maturity. Chopping the crop at the right length helps to achieve the desired particle length in a TMR. Measuring particle length of the forages is only a portion of the solution. Analyzing the TMR particle size is the main goal in measuring the distribution of …

Organic And Conventional Dairy Evaluation, Matthew (Matt) Stornetta

Dairy Science

No abstract provided.

Where The Wild Stuff Grows: Bacteria From The Cow To The Pasture-Izer, Michael Stewart

Dairy Science

No abstract provided.

Student Sample Perceptions Of Organic Food Products And Buying Habits, Alycia M. Deus

Agricultural Education and Communication

The purposes of this senior project were to identify college students’ perceptions and knowledge of organic food. This study also focuses on the respondents’ purchasing and budgeting of organic food. This information is essential to inform farmers and ranchers because it serves as an indicator of future market’s demands.

A thirteen item questionnaire was distributed to sixty-five students attending California Polytechnic State University, San Luis Obispo, enrolled in either Agricultural Education and Communication courses or Agricultural Business courses. Both upper and lower division classes were surveyed. The questionnaires were distributed and collected from June 2, 2009 to June 4, 2009. …

Effects Of Zilpaterol Hydrochloride On Growth Rates, Feed Converstion, And Carcass Traits In Calf-Fed Holstein Steers, J. L. Beckett, R. J. Delmore, G. C. Duff, D. A. Yates, D. M. Allen, T. E. Lawrence, N. Elam

Animal Science

Two experiments were conducted to evaluate the effectiveness of zilpaterol hydrochloride (ZH) to enhance growth performance and carcass characteristics in calf-fed Holstein steers. In Exp. 1, Holstein steers (n = 2,311) were fed in a large-pen trial in 2 phases at a commercial feed yard in the desert Southwest. In Exp. 2, a total of 359 steers were fed in a small-pen university study. In Exp. 1 and 2, cattle were implanted with a combination trenbolone acetate-estradiol implant approximately 120 d before slaughter. Cattle were fed ZH for 0, 20, 30, or 40 d before slaughter at a rate of …

The Economic Impact In Stanislaus And San Joaquin Counties If A Fruit And Vegetable Processor Left As A Result Of Changes In The Food Processing Byproduce Use Program, Jessica Erin Bylsma

Master's Theses

In 1978, Stanislaus County took a proactive approach to food processing byproduct waste and established the Food Processing Byproduct Use Program. It allows processors to transport byproduct to local producers, where it serves as an alternative input. There is concern that the program negatively impacts local groundwater. The Regional Water Quality Control Board proposed that the County institute water monitoring which would increase program expenses. In response to this proposal, participants investigated the impact of the cost increase and some have concluded that this increase would preclude their continued involvement. They believe the program has allowed them to maintain their …

First Record Of The Extinct Sawfish Propristis Schweinfurthi Dames, 1883 (Batoidea: Pristiformes: Pristidae) From The Middle Eocene Of Spain, Francesc Farrés, Harry L. Fierstine

Biological Sciences

A partial rostrum of Propristis schweinfurthi Dames, 1883 was collected in the Bartonian strata of northeastern Spain. The specimen represents the second record of the species from Europe, and the second occurrence of a sawfish (Mesopristis osonensis Farrés, 2003) from the Vic-Manlleu Marls Formation. In spite of some evidence to the contrary, Propristis probably preferred ecological conditions similar to extant sawfishes, i.e., inhabiting near shore tropical to subtropical seas with occasional excursions into freshwater.

Psychoanalysis Of A Sequel: The Disinterment Of Pet Sematary Two, Douglas Keesey

English

No abstract provided.

Design History Motion Graphics Video, Jennifer Liu

Art and Design

No abstract provided.

A Pitch For Microfinance: Using An Animation To Promote An Economic Movement, Yelena Kozlova

Art and Design

Microfinance refers to the idea of providing financial services to low-income clients. The purpose of this project was to create an animation using Adobe Flash that could be published online to inform the public about microfinance and to encourage the viewers to take part in this movement.

Creating A Rabbitry For A High School Agricultural Program: A Guide For The Approval Process And Materials Required, Anne Marie Katuin

Agricultural Education and Communication

The proposal for a rabbitry to be added to the campus of Liberty High School in Golden Valley Unified School District in the designated agricultural area was proposed to the agricultural teacher and site administration for the high school. A floor plan was designed to fit the needs of a small rabbit breeding operation for the use of the LHS FFA students who wished to have a breeding or meat rabbit SAE.

Guidelines and plans were created in order to help an agricultural teacher or community member go through the previously mentioned approval process if they were to want to …

Visually Sound: An Exploration Of Design + Music, Justin Rodriguez

Art and Design

Visually Sound: An Exploration of Design + Music, is a book comprised of a series of works exploring the relationship of design and music. There are four compositions which are inspired by four different songs: “Wake Up” by Arcade Fire, “Chicago Zoo” by The Cool Kids, “Reptilia” by The Strokes, and “Sleepyhead” by Passion Pit. Within the book are the lyrics to each song, and my thoughts on my ideas behind each of the four designs.

This report contains my research, process, results and personal discoveries. My documentation includes visual research in the form of digital mood boards, inspirational work …

Ark Ruffians Comic Book, Lily Nishita

Art and Design

This is a written report documenting the research, story, sketch, and drawing phases for the illustration of a comic book.

Improving Udder Health And Milk Quality, Michelle Flatt

Dairy Science

The objective of this study was to improve udder health and milk quality through the use of an on farm culture based treatment program. Milk samples were collected from mastitis cows, fresh cows, and high somatic cell count cows (cows with greater than 400,000 cells/mL in the last two DHIA tests) and cultured on bi plates; each side consisting of a selective medium for either gram positive bacteria and gram negative bacteria. The plates were then incubated for 24 hours and examined for growth. When growth was present, the infected quarter(s) were treated with cephapirin sodium for two consecutive milkings. …

Organic Carbon Content In Surface And Subsurface Soil On A Toposequence On The Peterson Ranch In Poly Canyon, San Luis Obispo, Renee Michelle Nall

Earth and Soil Sciences

Soil organic carbon (SOC) is directly related to soil organic matter (SOM), and is important in the functionality and stability of terrestrial ecosystems. Soil organic carbon is also an important pool for C storage and small changes of SOC may cause significant gains and losses in the large scale carbon cycle. The mechanisms by which SOC is transported and stored however are not widely studied. This study was conducted to determine if there is a relationship between toposequence and SOC in a small watershed on the Peterson Ranch, San Luis Obispo, CA. Nine soil pits were dug on various hillslope …

Relationship Between Tissue Carotenoid Concentrations In The Pacific Mole Crab, Emerita Analoga, And Parasitism By The Acanthocephalan, Profilicollis Altmani, Whitney Melroy

Biological Sciences

Acanthocephalan worms infect two hosts to reach full development. Some species have been demonstrated to change their intermediate host’s behavior or coloration to increase the likelihood they will reach the final host. The pacific mole crab, Emerita analoga, is commonly parasitized by Profilicollis altmani along the Pacific coast of North and South America, but the impact of parasitism on the crab intermediate host is unclear. We investigated whether P. altmani alters the concentration of dietary carotenoids present in E. analoga tissues and if the parasite may also acquire pigments normally allocated to the host. Fifty eight gravid female crabs were …

Promoting The Cal Poly Dairy Science Department Through Advertising, Nisa Marie Gallichio

Dairy Science

Promotion and advertising is a key aspect in a successful dairy operation. It allows for elite cows, offspring, and students to be showcased not only locally but nationwide as well and it has potential of allowing other industry professionals to invest in the quality genetics being advertised. This article gives a step by step guide showing how to successfully organize a photo shoot, submit the photo to the Holstein World Collegiate Issue, gather material necessary to creating an ad showcasing the cows at Cal Poly as well as updating the website.

Consumer Characteristics Of Organic Yogurt, Stephanie Dehner

Dairy Science

No abstract provided.

Training Manual And Protocol For Ultrasound At Cal Poly, Brian Andrew Waymire

Dairy Science

No abstract provided.

Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector

Dairy Science

No abstract provided.

Developing A Green Tea Based Natural Energy Drink, Natalie Ohanessian

Food Science and Nutrition

No abstract provided.

Use Of Loading Reports To Evaluate The Accuracy Of The Total Mix Ration, Kailen Johnson

Dairy Science

No abstract provided.

Inventory & Summary Of Embryo Transfer Work At The Cal Poly Dairy, Melissa M. Lema

Dairy Science

No abstract provided.

Conception Rates Of Sexed Semen In Lactating Cows, Christina J. Silva

Dairy Science

No abstract provided.

Social Behaviors Of Modern And Indigenous Peoples Impacting The Ecology Of The Amazon Rain Forest In Brazil, Josef W. Schaffer

Earth and Soil Sciences

Human induced disruption of the environment is prevalent in every culture. In Brazil, the effects of massive deforestation have become apparent since the nineteen eighties. However, along with deforestation, and a coinciding loss in an economic resource for the country, is a significant loss of natural habitat and species extinction. The Amazon in Brazil contains a large proportion of the world’s species diversity that is threatened by the socio-economic activities of modern Brazilian culture. Historically and presently, indigenous groups have contributed to insignificant levels of ecological disruption and are themselves threatened by the activities of modern Brazilians. The effects of …

Cal Poly Magazine, Winter 2009

Cal Poly Magazine

No abstract provided.

Concentrate Levels And Saccharomyces Cerevisiae Affect Rumen Fluid-Associated Bacteria Numbers In Dairy Heifers, G. J. Lascano, G. I. Zanton, A. J. Heinrichs

Dairy Science

Total viable rumenbacteria counts through the use of colony-unit forming assays lack accuracy because they only include culturable bacteria capable of initiating cell division. Thus, bacterial counts can be underestimated. The use of fluorescent characteristics of cell membranes allows flow cytometry to enumerate and distinguish dead from live bacteria cells. The objective of this experiment was to investigate the viable and total ruminal bacteria counts when 3 levels of forage:concentrate in diets were fed at restricted levels with the addition of Saccharomycescerevisiae (YC). Three cannulated post-pubertal Holstein heifers (age 18 ± 1.0 months) were fed corn silage (CS)-based diets in …

Exercise Power Grid Display And Web Interface, Alexander (Alex) Chernetz

Computer Engineering

The 2008-2009 expansion of the Recreation Center at Cal Poly includes three new rooms with cardiovascular fitness equipment. As part of its ongoing commitment to sustainable development, the new machines connect to the main power grid and generate power during a workout. This document explains the process of quantifying and expressing the power generated using two interfaces: an autonomous display designed for a television with a text size and amount of detail adaptable to multiple television sizes and viewing distances, and an interactive, more detailed Web interface accessible with any Java-capable computer system or browser.