Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 36

Full-Text Articles in Life Sciences

The Horse's Back As Influenced By Saddle Fit, Katie Millican Jun 2019

The Horse's Back As Influenced By Saddle Fit, Katie Millican

Agricultural Education and Communication

Therefore, this project will use devices called the Lameness Locator and a thermal camera along with facilities at the Equine Center in San Luis Obispo, California. The objective of the project is to utilize a population of sound horses and compare the heat detection images of their backs and saddles after being ridden to provide saddle fit data. This project will provide information contributing to closing the gap of equestrians uneducated about the importance of saddle fit.

The reason for researching and conducting a study to prove this point is simple: a horse owner needs to look at the bigger ...


California Livestock Owners: An Assessment Of Familiarity With New Antimicrobial Rules And Access To Educational Outreach, Philip Theodor Paulson Jan 2019

California Livestock Owners: An Assessment Of Familiarity With New Antimicrobial Rules And Access To Educational Outreach, Philip Theodor Paulson

Master's Theses and Project Reports

The purpose of this research is to support the California Department of Food & Agriculture (CDFA) with education and outreach about recent changes regarding antimicrobial use in livestock, and to enhance their emergency communications network. This was done by characterizing a population of small-scale livestock owners underserved with regards to educational outreach about animal health issues, such as antimicrobial use rules. The project also seeks to enhance public understanding of the importance of responsible antimicrobial use in animal and human health.

To accomplish this, the study used a survey administered in person at local farm supply stores and online to investigate ...


Entrepreneur`S Guide To Starting A Rabbit Agricultural Enterprise, Mary Maldonado Dec 2018

Entrepreneur`S Guide To Starting A Rabbit Agricultural Enterprise, Mary Maldonado

Agricultural Education and Communication

At San Luis Obispo, the University Cal Ploy has an Animal Science Department that offers over twenty enterprises pertaining to livestock production which “provide the environment for students to get outside the classroom and work with the animals in teams of students” (Cal Poly 2017-19). As reported from the “Animal Science Department Enterprise Class List”, the classes involved help develop technical skills by having students learn and work in active production settings with livestock such as cows, steers, pigs, lambs, goats, and chickens (Animal Science Department 2017-19). However, when compared to the livestock accounted for at a traditional county fair ...


Cal Poly's Western Bonanza Junior Livestock Show Hosts First Annual Livestock Auction: The Best In The West Livestock Auction, Karl W. Montague, Tatum E. Holdener Mar 2018

Cal Poly's Western Bonanza Junior Livestock Show Hosts First Annual Livestock Auction: The Best In The West Livestock Auction, Karl W. Montague, Tatum E. Holdener

Agricultural Education and Communication

Through this senior project, the authors researched whether or not Cal Poly's Western Bonanza Junior Livestock Show's first ever livestock auction was viable. Through their research, they found the addition of a livestock show to be successful and something that should continue.


A Comparative Analysis Of The Nutrient Composition And Digestibility Of California Perennial And Annual Grasses At Four Stages Of Growth, Elaina Cromer Jul 2017

A Comparative Analysis Of The Nutrient Composition And Digestibility Of California Perennial And Annual Grasses At Four Stages Of Growth, Elaina Cromer

Master's Theses and Project Reports

Beef products represent the fourth largest agricultural commodity in the state of California, valuing more than $3 billion from 2013 to 2015 (CDFA, 2016) and procure 90% of the income for the range livestock industry (FRAP, 2003). Forages found on California’s coastal, desert, foothill, and mountain ranges are the basis of the state’s beef cattle industry. Understanding their nutritional quality of these forages is important for their effective use (George et al., 2001a; Waterman et al., 2014). The objectives of this research were to investigate the nutritional characteristics, and in situ digestbilities in Angus beef cattle, of common ...


Gopher Intrusion In Cropping Systems, Kenneth Romero, Paul Cardinalli Dec 2015

Gopher Intrusion In Cropping Systems, Kenneth Romero, Paul Cardinalli

Agricultural Education and Communication

The purpose of this project was to determine if no till vs. till on gopher populations was more beneficial. Which is more efficient at controlling gophers and explain the damage they can cause and the diseases they can potentially vector. What are the different options of pest managements that have to be used when dealing with a gopher infestation in a tilled field vs. a no-tilled field.


Digestibility Of Two Complete Pelleted Diets By The Horse (Equus Caballus) As A Model Animal For Nondomestic Hindgut Fermenters, Emily M. Schwartz Dec 2015

Digestibility Of Two Complete Pelleted Diets By The Horse (Equus Caballus) As A Model Animal For Nondomestic Hindgut Fermenters, Emily M. Schwartz

Master's Theses and Project Reports

Estimating nutrient and energy requirements of exotic animals is a necessary component of nutrition management in zoos and other wildlife facilities. In the absence of species-specific data, domestic animal models are often referenced. Herbivorous hindgut fermenters, such as horses, zebra, and rhinoceros, rely on microbial fermentation in the cecum and colon to utilize dietary structural carbohydrates. The study objective was to measure the digestible energy of two (LOW, HIGH) complete pelleted diets by the horse as a model for nondomestic hindgut fermenters. Seven, individually housed, adult Quarter Horse (Equus caballus) geldings were assigned to one of two diets as 100 ...


Simangus Crossbreeding Proposal, Kaity Arburua Jun 2015

Simangus Crossbreeding Proposal, Kaity Arburua

Agricultural Education and Communication

The purpose of this project is to develop a proposal for a crossbreeding plan specifically oriented towards a Central Valley beef producer interested in SimAngus cattle. In this project you will find information pertaining to the Simmental, Angus and SimAngus breeds, as well as industry goals and possible outcomes. This was designed in order to create tangible evidence and information, such a pamphlet/brochure, for the producer to evaluate; in hopes that the beef producer will implement this crossbreeding plan.


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.


Incorporation Of Equine Assisted Therapy In University Curriculum, Shelby Y. Sabati Jun 2014

Incorporation Of Equine Assisted Therapy In University Curriculum, Shelby Y. Sabati

Animal Science

Equine-assisted activity and therapy incorporates physical, mental and language treatments through equine movement to remediate medical conditions or impairments in clients. For all the opportunities that equine-assisted therapy provides there is little education on the practice. The focus of this project is to present the process, benefits and limitations of adopting an equine-assisted therapy course at California Polytechnic State University so it may be used as a reference for future course proposal.

Objective: The aim of this proposal is to offer insight into Equine-assisted therapy, understanding how to integrate the Professional Association of Therapeutic Horsemanship (PATH) International curriculum into the ...


Beef Cattle Lesson Plans: For Use In The Education Of School-Age Children In The Beef Cattle Industry, Katherine M. Halloran, Cheyenne H. Love Jun 2014

Beef Cattle Lesson Plans: For Use In The Education Of School-Age Children In The Beef Cattle Industry, Katherine M. Halloran, Cheyenne H. Love

Animal Science

This project was initially created for use at Fort Hope in Arroyo Grande, California. It designs lesson plans created to teach children about the beef cattle industry. The project consists of lesson plans for three age groups: 7-9, 10-12, and 13-15. Each age group will learn various aspects about beef cattle, and lessons will increase in complexity as the children advance age groups. The groups will spend six days in lecture completing worksheets and activities, and on the seventh day, after completion of a review game, the children receive certificates. While the project was created specifically for the Fort Hope ...


Lamb Bacon: How The Method Of Brine Distribution And Addition Of A Dry Rub Influences Yields, Morgan Metheny Jun 2014

Lamb Bacon: How The Method Of Brine Distribution And Addition Of A Dry Rub Influences Yields, Morgan Metheny

Animal Science

This study was conducted to test the whether lamb breasts can substitute as the raw material in producing a bacon product. Due to the difference in fat saturation between pork and lamb, this research was used to test how successful lamb absorbs the brine in order to make bacon. The yield results of two different processing techniques, injection and tumbling, were compared along with comparing the affect of adding a dry rub of seasonings to the lamb surface. The 120 lambs breasts were split into four groups of 30. Each group received a different treatment: plain tumbled, plain injected, seasoned ...


The Effects Of Different Cryopreservation Techniques On The Survival Rate Of In Vitro Produced (Ivp) And Biopsied Bovine Blastocysts, Diana J. Gumber Jun 2014

The Effects Of Different Cryopreservation Techniques On The Survival Rate Of In Vitro Produced (Ivp) And Biopsied Bovine Blastocysts, Diana J. Gumber

Animal Science

This study’s objectives were to determine if the biopsy of expanded blastocysts prior to cryopreservation affected the survival rates and determine if there is a difference between slow-freezing in 10% glycerol, slow freezing in ethylene glycol, and vitrification in terms of survival rate of the embryos. Blastocoeles were reduced prior to cryopreservation by means of biopsy. Embryos for slow freezing were exposed to ethylene glycol (SynGRO Ethylene Glycol with Sucrose, BIONICHE, Pullman, WA, USA) or 10% glycerol (SynGRO 10% Glycerol, BIONICHE, Pullman, WA, USA) as cryoprotectants. Vitrified embryos were exposed to 10% and 40% ethylene glycol. Survival rate of ...


Assessing Rodent Species Counts And Diversity In The Not-Grazed Montana De Oro State Park And The Rotationally Grazed Pecho Ranch, Nancy Marie Lemos Jun 2014

Assessing Rodent Species Counts And Diversity In The Not-Grazed Montana De Oro State Park And The Rotationally Grazed Pecho Ranch, Nancy Marie Lemos

Master's Theses and Project Reports

The available data examining the influence of rotational grazing on rodent responses are limited. This study investigated how rotational livestock grazing practices influence small mammal rodent abundances and species diversity. We looked for evidence of variation in the occurrence and/or numbers of certain rodent species among three plant community types (grassland, shrubland, grass-shrub mix), managed with or without grazing. We used Sherman live traps over a total of eight trapping sessions. We totaled 486 trapnights for each of the six plant community and grazing management combinations. The three plant community types were identified by visual cover.

Out of the ...


A Comparison Of The Standard 5-Day Co-Synch With Cidr Protocol And A 14-Day Co-Synch With Cidr Protocol In Primiparous And Multiparous Beef Cattle, Taylor Anne Dericco May 2014

A Comparison Of The Standard 5-Day Co-Synch With Cidr Protocol And A 14-Day Co-Synch With Cidr Protocol In Primiparous And Multiparous Beef Cattle, Taylor Anne Dericco

Animal Science

No abstract provided.


A Literature Review On Injection-Site Lesions In Dairy Cows And Culling Decisions, Eric B. Parsons Mar 2014

A Literature Review On Injection-Site Lesions In Dairy Cows And Culling Decisions, Eric B. Parsons

Dairy Science

Currently dairy producers face particular problems concerning their culled cows and bulls, these problems must be addressed so dairy producers have the opportunity to improve the quality of beef produced from their cull dairy cows. At the moment, not much is known about culling decisions outside “break-even” numbers and poor cow conditioning. This literature review outlines the strategy behind culling decisions and looks into potential plans to develop progressive body conditioning and quality of meat sent to auction. Currently the dairy industry is not placing much demand into providing the livestock auctions and harvest plants with higher quality meat. This ...


Proteomic Analysis Of Mammary Epithelial Cell Development, Alyssa Kay Conly Jan 2014

Proteomic Analysis Of Mammary Epithelial Cell Development, Alyssa Kay Conly

Master's Theses and Project Reports

In this set of studies, a proteomic approach was used to investigate the protein profile of the mammary epithelial cell (MEC) through different stages of mammary development. The HC11 cell line was used to investigate protein changes between undifferentiated and differentiated MEC, which represent the pregnant and lactating states of the cells. This comparison revealed an interesting differential expression profile underscoring many recognized processes that occur in differentiated MECs, while others unveiled differences between MEC differentiation in vitro and in vivo. Primary MEC were also isolated from virgin, pregnant, and primiparous quiescent mice to compare the virgin state of the ...


Managing The Veterinary Clinic Enterprise, Shelby N. Smyly Dec 2013

Managing The Veterinary Clinic Enterprise, Shelby N. Smyly

Animal Science

This document serves as a guideline for the student management of the Veterinary Clinic Enterprise.


The Envenoming Pandemic And The Misguided Views Of Snakes: Developing Sustainable Relationships Between Native Poisonous Snakes Of India And The Citizens Of Maharashtra Through The Use Of The Irula Model., Destiny Villanueva Nov 2013

The Envenoming Pandemic And The Misguided Views Of Snakes: Developing Sustainable Relationships Between Native Poisonous Snakes Of India And The Citizens Of Maharashtra Through The Use Of The Irula Model., Destiny Villanueva

Animal Science

Due to its vast population and general negative consensus regarding snakes, India is notorious for having more snakebite incidents than any other country. Snakes are simultaneously revered and feared in Indian religion and culture. This stigma is perpetuated through propaganda, family beliefs, and innate fears of snakes.These stigmas are more pronounced within rural areas, such as the region of Mahad within the state of Maharshtra. Envenoming is endemic in these areas, and others like them. The World Health Organization identified envenoming as one of the most neglected tropical diseases of the 21st century (Nature India, 2013). Additionally, both nonvenomous ...


Effects Of Post-Castration Interval Length On Recovery Of Epididymal Sperm Of Canine And Equine Sperm, Jordan Escobar Jun 2013

Effects Of Post-Castration Interval Length On Recovery Of Epididymal Sperm Of Canine And Equine Sperm, Jordan Escobar

Animal Science

No abstract provided.


Design, Construction And Cost Analysis Of Manufacturing Horse Bits, Erica L. Timmermans Jun 2013

Design, Construction And Cost Analysis Of Manufacturing Horse Bits, Erica L. Timmermans

BioResource and Agricultural Engineering

This report discusses the design, fabrication and cost analysis of two unique horse bits. On the market today, there are many different kinds of bits to serve a multitude of purposes. However, this project explored the option of having two different shanks types made of stainless steel in addition to three mouthpieces that are able to fit in both types of shanks.


Keller's Broken Heart Ranch Internship: March-June 2012, Lia C. Swanson May 2013

Keller's Broken Heart Ranch Internship: March-June 2012, Lia C. Swanson

Animal Science

No abstract provided.


Cal Poly Goat Program, Lauren Christensen Apr 2013

Cal Poly Goat Program, Lauren Christensen

Animal Science

The Cal Poly Goat Program was established in the Summer of 2012 to provide vegetation management services on the Cal Poly campus and to allow students to gain hands on experience with goats. Student interest in adding goats as an additional species in the Animal Science Department spurred the realization and development of the program. The department also experienced demand for goats to use for vegetation management at the animal units and around various facilities on campus. The Goat Program integrates Cal Poly’s hands-on, ‘Learn by Doing’ philosophy with sustainable management practices to serve the needs of students as ...


Effects Of Grazing Vs. Resting On Soil Chemistry And Plant Community Dynamics For The Central Coast Of California In 2012, Jessica Combs Dec 2012

Effects Of Grazing Vs. Resting On Soil Chemistry And Plant Community Dynamics For The Central Coast Of California In 2012, Jessica Combs

Animal Science

No abstract provided.


In Vivo And In Vitro Digestibility Of A Complete Pelleted Feed In Horses, Cassandra Renee Sweeney Aug 2012

In Vivo And In Vitro Digestibility Of A Complete Pelleted Feed In Horses, Cassandra Renee Sweeney

Master's Theses and Project Reports

ABSTRACT

COMPLETION OF AN IN VIVO DIGESTIBILITY TRIAL IN HORSES AND IN VITRO DIGESTIBILITY ASSAY DEVELOPMENT

Cassandra Renee Sweeney

In vivo analysis of equine feed digestibility has been the gold standard since the late 1800's, although it can be time consuming, costly, and labor intensive. In vitro digestibility analysis may be more economical and beneficial to both feed manufacturers and consumers. The availability of accurate in vivo data is crucial for critical evaluation and validation of any potential in vitro method (Coles et al., 2005). Ten adult American quarter horse geldings were used in the in vivo digestibility evaluation ...


Open Pulled Straw (Ops) Vitrification Of Mus Musculus Morula And Blastocyst Survival In Two Common Cryopreservation Medias, Gina Marie Cirimele Jun 2012

Open Pulled Straw (Ops) Vitrification Of Mus Musculus Morula And Blastocyst Survival In Two Common Cryopreservation Medias, Gina Marie Cirimele

Animal Science

The objectives of this study were to: (1) determine an optimal cryoprotectant of mice embryos; and (2) determine whether morula or blastocyst stage is ideal for vitrification in both medias. One experiment was performed using two different medias for vitrification with open pulled straws (OPS) with morulae and blastocysts. In the first protocol, we called V, embryos were exposed to 10% ethylene glycol (EG) for 5 minutes, then 40% ethylene glycol and 0.6 M galactose for about 30 seconds, loaded into an OPS, and plunged into liquid nitrogen. In the second protocol, we called VG, embryos were exposed to ...


Design, Acnd Construction Of A Portable Artificial Insemination Chute, Chris Herrera Mar 2012

Design, Acnd Construction Of A Portable Artificial Insemination Chute, Chris Herrera

BioResource and Agricultural Engineering

This senior project report discusses the design, construction, and evaluation of a portable artificial insemination chute for the use of the Cal Poly Beef Department. The design was based on the suggested modifications from operators of several other chutes currently in use.

The main areas considered for the design were; Ergonomics, cattle safety, factors effecting maximum breeding conception rates, and Portability.

The breeding chute proved superior over traditional chutes in a variety of ways. Improvement occurred in the areas of consideration as follows, user operation was simplified, animal stress was decreased, and maximum breeding efficiency was obtained.


The Ma-10 Cell Line As A Model Of Insl3 Regulation And Leydig Cell Function, Mary E. Strong Jun 2011

The Ma-10 Cell Line As A Model Of Insl3 Regulation And Leydig Cell Function, Mary E. Strong

Master's Theses and Project Reports

Leydig cells produce testosterone in response to luteinizing hormone (LH) via the cyclic adenosine monophosphate (cAMP)/protein kinase A pathway. Additionally, these cells are responsible for producing insulin-like peptide 3 (INSL3), a peptide hormone that is essential for testicular descent. The insl3 promoter in Leydig cells can be activated by cAMP through the transcription factor Nur77, which has also been shown to regulate the promoters of the steroidogenic enzymes, cyp17 and 3b-hsd. While the mechanism of LH action on testosterone production is well characterized, the effect of LH on insl3 abundance has yet to be shown directly. The MA-10 ...


Rangeland Condition Assessment Of A Portion Of The Cal Poly Sheep Unit, Colin S. Mckim Dec 2010

Rangeland Condition Assessment Of A Portion Of The Cal Poly Sheep Unit, Colin S. Mckim

Animal Science

This rangeland condition assessment was conducted as part of the Cal Poly Rangeland Condition Assessment Project. Five pastures comprising 31.7 acres at the Cal Poly sheep unit were assessed to collect baseline ecological information. Methods used were Line-point Intercept, Belt Transect, Residual Dry Matter, and the rangeland health indicators recommended by Pyke et al., 2002. Additionally, a preliminary species list was collected. The rangeland health assessment method found all pastures to have no to slight departure from the local reference area when evaluated for soil and site stability, hydrologic function, and biotic integrity.


Trial And Budget Analysis Of Two Synchronized Artificial Insemination Breeding Programs For Beef First Calf Heifers, John Nino Jun 2010

Trial And Budget Analysis Of Two Synchronized Artificial Insemination Breeding Programs For Beef First Calf Heifers, John Nino

Agribusiness

This study was designed to compare the benefits and costs of two different synchronized artificial insemination programs on two groups of beef first calf heifers. A financial budget was developed that would include cost of synchronized insemination per animal and the added value of a bred heifer compared to an open one.

The two synchronized programs were called controlled internal drug release (CIDR) and Ovsynch. They used a specific timeline and drugs to complete the synchronization process. A single low birth weight high calving ease bull was used for both groups to enforce conformity between the groups. Costs of all ...