Life Sciences Commons^™

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 …

Dairy Cow Grouping, Allison Mcmillan

Dairy Science

No abstract provided.

Relationship Of Copper, Zinc And Selenium Status With Udder Health And Mastitis Incidence In The Cal Poly Holstein Herd, Michelle Van Ryn

Dairy Science

No abstract provided.

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

Dairy Science

No abstract provided.

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 …

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

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.

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

Dairy Science

No abstract provided.

Formation Of Cull Cow Program For The Artificial Insemination Class, Brian O. Medeiros

Dairy Science

Cal Poly’s “Learn by Doing” philosophy is one of the great traits that the University holds. However it is this philosophy that is also one of the most expensive and hardest to maintain. “Production agriculture majors use more dollars per unit than any other major in the entire college,” as Dr. Golden stated during his talks about herd cut backs. Never the less the College of Agriculture prides itself on supplying knowledgeable and experienced students to the industry that supports it so much. One of the amazing classes that are offered at the university is the Dairy Science Artificial Insemination …

Sim-Plete Feeding Trial, Kelsey Johnson

Animal Science

A. An internship with ENI will offer an opportunity to work in the field with horse owners, feeds, marketing, and nutrition. I will be assisting in the placement of a product in the field and evaluating response. It is the first step in evaluating if this product is an appropriate and marketable product.

B. The responsibilities will be to place a new equine feed product with 10-15 horse owners (approximately 30-45 horses) and measure customer response and potential marketability of the product. Including:

1. Delivery of the product
2. Creation of Questionnaires (one will be given before the owners begin feeding the …

The Malawi Project: From Conventional To Holistic Decision Making, Grace Wetmore

Animal Science

How the Cal Poly Malawi Appropriate Technologies Team, and other development groups, can use Holistic Management to aid developing countries in an effort towards a sustainable future.

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 …

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. …

Impact Of Dietary Arginine On Immunity In Broiler Chicks, Jennifer Lynn D'Amato

Master's Theses

Arginine (ARG) is an immunologic modulator due in part to its role as a substrate for leukocytes. Therefore, the objective of these studies was to evaluate the impact of dietary ARG on ARG utilization in peripheral blood mononuclear cells (PBMC) and thymocytes in broiler chicks as they provide a model that is not confounded by de novo ARG synthesis. Several experiments were performed to measure: 1) ARG transporters as markers of ARG utilization by leukocytes; 2) thymocyte proliferation; 3) PBMC phenotype, and 4) ARG’s impact on the acute phase response (APR). In experiment 1, chicks were fed diets containing 1.20% …

Impact Of Weed Management Practices On Grapevine Growth, Yield Components, Plant And Arthropod Abundance, And Carabid Seed Predation In Paso Robles Vineyard, Paolo Sanguankeo

Master's Theses

In the Central Coast of California, USA, wine grape growers are making efforts to identify weed control practices that promote biodiversity in their vineyards while maintaining yields. A field study was conducted in Paso Robles, CA in 2006 and 2007 evaluating the effect on Zinfandel grape-vine growth and production, groundcover plant, and ground dwelling arthropod communities of five weed control practices: 1) flumioxazin, 2) simazine, 3) cultivation, 4) cover crop, and 5) untreated control.

The herbicide treatments had the lowest weed biomass followed by the cultivation, being approximately 10 and 2 times lower than the weed biomass of either the …

Viability Of Alternative Genetic Improvement Strategies Using Whole Genome Selection On Commercial Dairy Operations, Levi W.M. Gassaway

Master's Theses

The objective of this thesis was to determine the viability of alternative genetic improvement strategies (GIS). Each alternative GIS combined the use of whole genome selection (WGS) with common reproductive methods (non-sexed semen artificial insemination (AI), sexed semen AI, embryo transfer utilizing non-sexed semen AI) that can be found on a commercial dairy operation. The viability of each GIS was determined using a discounted gene flow model, designed with parameters of a typical western dairy operation, to evaluate the following variables: reproductive method, selection intensity, accuracy of prediction and female age-class. Of the GIS investigated, a heifer-based strategy that used …

Effects Of Filtration Temperature And Heat Treatment On Composition And Rheological Properties Of Whole Milk Ultrafiltration Retentates, John W. Montella

Master's Theses

ABSTRACT

Effects of Filtration Temperature and Heat Treatment on Composition and Rheological Properties of Whole Milk Ultrafiltration Retentates

John William Montella

For the first part of my thesis, the effects of filtration temperature and heat treatment on the compositional properties of whole milk Ultrafiltration retentate (UF) were studied. Ultrafiltration is primarily run at temperatures in the range of 50-55°C but more and more plants are starting to filter at refrigeration temperatures. In the ultrafiltration of milk, filtration temperature can affect the composition of the retentate by affecting the chemistry of milk components. The application of a pasteurization step can also …