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Full-Text Articles in Life Sciences

Agricultural Experiences And Factors Of Undergraduates Who Enroll In A College Of Agriculture, Benjamin G. Swan, Ann M. De Lay Dec 2014

Agricultural Experiences And Factors Of Undergraduates Who Enroll In A College Of Agriculture, Benjamin G. Swan, Ann M. De Lay

Agricultural Education and Communication

Industry partners and College of Agriculture, Food and Environmental Sciences (CAFES) faculty have observed students entering the college possessed fewer agriculture experiences and skills than their predecessors. They have also lamented the increasing pressure to develop industry-ready students, when the gaps are ever wider between their experience and skills entering college and what are required upon graduation. During the 2011 spring quarter, all CAFES students (N = 3,366) were sent an electronic survey that resulted in 911 responses (27% response rate). Three quarters of the students were female and one third were seniors. Prior to enrolling at the university, 34 ...


Root Stimulation Using Vermi-Products In Grape Vine Propagations, Katerina M. Flores Dec 2014

Root Stimulation Using Vermi-Products In Grape Vine Propagations, Katerina M. Flores

Wine and Viticulture

Vermi-products are byproducts produced from earthworms digesting and decomposing a natural material into another. Liquid teas or extracts of vermi-products are another form of leachate material found in the completed compost bin. These products are not high in essential plant macronutrients, have an average neutral pH (around 7.0), and are known for living microbial population. Grapevine propagations cut from the Trestle Vineyard at California Polytechnic State University, San Luis Obispo were used to observe root growth development using steer compost, vermicompost, and vermi-extract. Propagations used were dormant Pinot Noir clone 777. Compost subsamples tested 5%, 10%, 20%, and 40 ...


Ag In Motion, Kerri Bermudez, Annelise Jensch, Michaela Stone Dec 2014

Ag In Motion, Kerri Bermudez, Annelise Jensch, Michaela Stone

Agricultural Education and Communication

The purpose of this project was to gauge the interest levels of Ag in Motion for the Central Coast. Positive feedback would allow the project to continue on after this project is finished. Ag in Motion is an important asset to middle school aged children because they have the opportunity to learn about agriculture and it’s value. This is especially important considering California is number one producer of agricultural commodities in the United States.

The Central Coast is defined as these three counties: Monterey County, San Luis Obispo County, and Santa Barbara County. An online survey was developed and ...


Studies To Characterize Heavy Metal Content And Migration From Recycled Polyethyleneterephthalate, Michael John-Ross Whitt Dec 2014

Studies To Characterize Heavy Metal Content And Migration From Recycled Polyethyleneterephthalate, Michael John-Ross Whitt

Master's Theses and Project Reports

Packaging Materials account for 31% of the world’s municipal solid waste. Agencies like the Environmental Protection Agency (EPA) and the Agency for Toxic Substances and Disease Registry (ATSDR) are pushing for the increased use of recycled thermoplastic materials. Polyethylene terephthalate (PET) is a commonly recycled thermoplastic which is used to package ready-to-eat fruits and vegetables. Most recycled polyethylene terephthalate (RPET) packaging materials contain heavy metal catalysts, the most common being antimony. The recent increased use of recycled plastic materials has been suspected as the source of increased human heavy metal exposure. In this study, cadmium, chromium, nickel, lead and ...


Methane Production By A Packed-Bed Anaerobic Digester Fed Dairy Barn Flush Water, Sean Richard Thomson Dec 2014

Methane Production By A Packed-Bed Anaerobic Digester Fed Dairy Barn Flush Water, Sean Richard Thomson

Master's Theses and Project Reports

Packed-bed digesters are an alternative to covered lagoon digesters for methane production and anaerobic treatment of dilute wastewaters such as dairy barn flush water. The physical media of packed-beds retain biofilms, often allowing increased treatment rates. Previous studies have evaluated several types of media for digestion of dilute wastewaters, but cost and media fouling have setback commercial development. A major operational cost has been effluent recirculation pumping.

In the present effort, a novel approach to anaerobic digestion of flush dairy water was developed at pilot-scale: broken walnut shells were used as a low-cost packed-bed medium and effluent recirculation was replaced ...


Developing A Website For The Cal Poly Rodeo Program, Audrey N. Pearce Nov 2014

Developing A Website For The Cal Poly Rodeo Program, Audrey N. Pearce

Agricultural Education and Communication

The purpose of this project was to create an effective website for the Cal Poly Rodeo Program in order to improve communication with key audiences and ensure continued success for the organization. This website was intended to remain consistent with other Cal Poly websites, such as those listed on the Cal Poly College of Agriculture, Food and Environmental Sciences (CAFES) Student Life page under Clubs and Organizations, and was included on this page once created. A secondary purpose of the project was to give the Cal Poly Rodeo coach an easier way to recruit and contact potential student athletes. The ...


Growing Conditions For Algae, Angeles Mora, Tamar Melkonian, Alejandro Calderon-Urrea Aug 2014

Growing Conditions For Algae, Angeles Mora, Tamar Melkonian, Alejandro Calderon-Urrea

STAR (STEM Teacher and Researcher) Presentations

With the growing demands of water in California and the increasing cost of fossil fuels to operate water-cleaning equipment, Algae was cultivated in different concentrations of Nitrogen, Phosphorus, and Potassium (NPK) during different trails to identify the best growing conditions for the removal water contaminates. Before testing algae in waste water, the Algae: Dunaliella Primolecta, Chlorella Vulgaris, and Scenedesmus Dimorphus were cultivated in four different media containing distilled water and plant vitamins. The different mediums used include: Orchid Grow More (20-20-20), Miracle Grow (30-10-10), Murashige & Skoog, and Orchid Bloom Boster (11-35-15). As a result of the investigation, the algae, Scenedesmus ...


Aquaponics And Basil Plant Density, Danika L. Macmaster, Brook Murphy, Dudley Burton Aug 2014

Aquaponics And Basil Plant Density, Danika L. Macmaster, Brook Murphy, Dudley Burton

STAR (STEM Teacher and Researcher) Presentations

Aquaponics is the use of water from a fish tank to provide nutrients to plants in a soil-less environment. The rocks cultivate the bacteria that turns the ammonia into nitrates that the plants need, and the plant bed functions as a filter for the fish tank. In this study, with the guidance of Doctor Dudley Burton, Doctor Brook Murphy, we researched the optimal plant density for basil in an Aquaponics system. We attempted to control or measure all the other variables to consider, as to isolate the variable of distance between plants. The water flow was spread through the plant ...


Development Of A Public Education Website: Building Bridges Over Water, Angelina Mckee Jul 2014

Development Of A Public Education Website: Building Bridges Over Water, Angelina Mckee

Agricultural Education and Communication

Website created by Angelina McKee to educate the public about water resource issues. Water is the basic unit of life, water resources are the basis for what societies and ecosystems are founded upon. Water shortages and droughts are more prevalent in our ever-changing world. It is no shock that there are discrepancies between various stockholders on either sides of the dry riverbed. This senior project resulted in the development of a website that addresses global water resources, water use in California, water conservation, and water allocation. The website informs the public on water resources and related issues and will hopefully ...


Bee Colony Startup And Cost Analysis, Marisela Herrera Jun 2014

Bee Colony Startup And Cost Analysis, Marisela Herrera

BioResource and Agricultural Engineering

The increase in demand for European Honey bee pollination along with colony collapse disorder has caused bee pollination rental fees to greatly increase. This project intended to determine how effective and economically feasible it would be for almond growers to begin raising their own hives for pollination. It was determined the biggest challenges were organizing and finding employees who were knowledgeable about bee keeping. When looking at the cost it was clear that even with the current cost per hive the startup costs were still less than the total rental fees for a single pollination season.

Once the hives have ...


Santa Cruz Animal Health Employee Procedural Manual, Sarah J. Senff Jun 2014

Santa Cruz Animal Health Employee Procedural Manual, Sarah J. Senff

Graduate Internship Reports in Agricultural Education

This manual provides detailed, step-by-step directions for Santa Cruz Animal Health Sales Representatives learning to navigate a complicated computer system. The procedures provide a background and summary of when to use certain procedures as well as troubleshooting strategies in which sales representatives can refer to. The manual provides multiple images for each procedure to enhance clarity and consistency. A reference section provides detailed information about specific UltraCruz products as well as animal health products that are of frequent concern for customers.


Project Proposal And Development Plan For A New Security Gate At Swanton Pacific Ranch, K. Morgan Perry Jun 2014

Project Proposal And Development Plan For A New Security Gate At Swanton Pacific Ranch, K. Morgan Perry

Agricultural Education and Communication

The purpose of this project was to develop a prototype gate for Cal Poly’s Swanton Pacific Ranch in Santa Cruz, CA. Swanton Pacific Ranch requested that the author design and build a 21’x5’ single-retractable gate for Swanton Pacific Ranch to help decrease the security issues that have recently arisen at the facility. The design and format of this project are focused towards the desires and goals set forth by Swanton Pacific Ranch and the Operations Manager, Steve Auten in order to obtain a certain outcome. This project provides an outline of what needs to be done in order ...


Effect Of Grape-Leaf Potassium Content On Life-History Traits Of Willamette Spider Mite, Eotetranychus Willamettei (Mcgregor) (Acari: Tetranychidae), Michael Paul Sotelo May 2014

Effect Of Grape-Leaf Potassium Content On Life-History Traits Of Willamette Spider Mite, Eotetranychus Willamettei (Mcgregor) (Acari: Tetranychidae), Michael Paul Sotelo

Horticulture and Crop Science

Vitis vinifera L. cv. Chardonnay vines were fertilized to approximate baseline, low, medium, and high grape-leaf potassium contents, relative to viticultural target values. From those vines, twelve replicates of leaf-discs were made per fertilizer treatment. The leaf-discs were populated with individuals of Willamette spider mite, Eotetranychus willamettei (McGregor) and maintained in a plant growth chamber (25°C, 14L:10D h). Data pertaining to maturation time (days), pre-oviposition period (days), lifetime fecundity (eggs / ♀), and longevity (days) of E. willamettei was recorded daily. Petiole analysis revealed that the grape-leaf potassium contents were greater than target values. Respective to fertilizer treatment, the actual ...


Teacher Internship Report - Anderson Union High School, Kathryn L. Teixeira Apr 2014

Teacher Internship Report - Anderson Union High School, Kathryn L. Teixeira

Graduate Internship Reports in Agricultural Education

This internship/project report includes validation documents required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The documents are concurrently used for the Agriculture Incentive Grant review process at Anderson Union High School conducted by representatives of the California Department of Education. The internship included the practical application of occupational skills related to the horticulture industry and modification to the Greenhouse facilities at Anderson Union High School by improving ergonomics of greenhouse tables, replacing the existing siding of storage facilities and installing concrete walkways within the greenhouse. Students in the Agricultural Department were integral in all ...


Student Apathy As Defined By Secondary Agricultural Education Students, Ann M. De Lay, Benjamin G. Swan Mar 2014

Student Apathy As Defined By Secondary Agricultural Education Students, Ann M. De Lay, Benjamin G. Swan

Agricultural Education and Communication

Student motivation continues to be a source of concern for educators. This phenomenological study captured the voices of secondary agriculture students as they shared their perspectives and experiences surrounding student apathy. Four focus group interviews were conducted at four central California high schools with distinguished agriculture programs. The following question guided the research: What experience do secondary agriculture students have with student apathy in their academic environments? Findings suggest student apathy is born of personal choice and grown through mediocre teaching, archaic assessment and the absence of learning purpose. Recommendations suggest students, teachers, the local school and teacher educators form ...


An Index Of California Regulations Affecting Rice Growers, Maddie Dunlap Mar 2014

An Index Of California Regulations Affecting Rice Growers, Maddie Dunlap

Agricultural Education and Communication

The purposed of this project was to identify and compile California regulations that affect rice growers. The final product was an index designed for rice growers and their representatives to be used lobbying efforts with regulators and elected officials. The index serves to illustrate the intensive regulations that rice growers face in California. Areas of focus include water quality, air quality, labor and pesticides indirectly.


Sustainable Fire Clearance Using Goats Teaching Unit, Elida Noren Moore Mar 2014

Sustainable Fire Clearance Using Goats Teaching Unit, Elida Noren Moore

Agricultural Education and Communication

This project was created in order to fulfill the need of creating a unit of teaching for sustainable fire brush clearance using goats. The beginning goes over all the literature that was used to help create the project as well as the thought process that was followed in order to write the unit. These decisions were crucial for figuring out what was going to be included in the unit as well as the activities and lecture prompts that are provided. The unit covers everything from fire history and fire regulations in the state of California, to the care and treatment ...


Supervised Agricultural Experience Handbook: How To Graft Tomatoes, Lauren Elliott Mar 2014

Supervised Agricultural Experience Handbook: How To Graft Tomatoes, Lauren Elliott

Agricultural Education and Communication

The Purpose of this project was to create a handbook that could be used by high school agricultural programs to implement grafting of tomatoes. It could be used as a Supervised Agricultural Experience entrepreneurship project for a student or a fundraiser for the high school program as a whole. The handbook provides a resource with step-by-step procedures for the entire process grafting tomatoes entails. It is hoped that the handbook gives guidance but also leaves room for interpretation for educational purposes.


The Effects Of Implementing Cow Cooling For Oostdam Dairy: Benefits From Milk Production, Feed Intake, And Reproduction, Mark Oostdam Mar 2014

The Effects Of Implementing Cow Cooling For Oostdam Dairy: Benefits From Milk Production, Feed Intake, And Reproduction, Mark Oostdam

Dairy Science

Heat stress has a major effect on management decisions for a dairy operation because of the decrease in the cows productivity. Dairy cattle loose efficiency of economic production due to lower milk yields and decreased pregnancy rates. Milk loss due to heat stressed cows in California averages a loss of 293 kg of milk/cow/year(St.-Pierre et al., 2003), and with milk prices reaching record highs, dairies are losing out on increased revenue opportunity. Increases in reproductive infertility from heat stress also affect revenue for a dairy operation by reducing conception rates (Hansen 1997) and pregnancy rates, which ...


Updated Ethography For European Starlings (Sturnus Vulgaris) In Central Coast Vineyards, Vic A. Guerrero Mar 2014

Updated Ethography For European Starlings (Sturnus Vulgaris) In Central Coast Vineyards, Vic A. Guerrero

Wine and Viticulture

No abstract provided.


Central Coast Groundfish Species And Fillet Identification Manual, Robbie Milla Jan 2014

Central Coast Groundfish Species And Fillet Identification Manual, Robbie Milla

Agricultural Education and Communication

The purpose of this project was to create a manual that would aid fishermen and fish consumers in the successful identification of various groundfish species and their fillets. The manual was crafted with quality photographs to give the viewer a vivid depiction of the targeted groundfish species. The images were taken to specifically target the identification characteristics of each fish species. It was the hope of the author to educate anyone who was interested in the groundfish fishery. The manual includes: basic groundfish regulations, groundfish species identification, and groundfish fillet identification.