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Full-Text Articles in Meat Science

Effects Of Retail Case Environment And Led Lighting Temperature On Color Of Ground Beef Patties, Mesa Kutz May 2021

Effects Of Retail Case Environment And Led Lighting Temperature On Color Of Ground Beef Patties, Mesa Kutz

Animal Science Undergraduate Honors Theses

The objective of this study was to explore different type of retail cases and case environments, primarily lighting, to quantify the impact on shelf life. Coarse ground 80:20 beef from a local retail establishment was acquired between 7 and 10 d from the box date and fine ground through a 9.5 mm grinder plate, and then formed into 150.25 g patties with an automatic patty forming machine. Each patty was then individually packaged in PVC-overwrap packages and randomly assigned to one of the four different treatments: open, multideck cases with 3000 K lighting (OPEN3000),open 3500 K ...


Sustainable Winter-Feeding Practices For Meat Goats Within The Southeastern United States, Nikisha Ryan, Nar Gurung, Jeremy Byrant, Frank Abrahamsen, Wendell Mcelhenney Apr 2021

Sustainable Winter-Feeding Practices For Meat Goats Within The Southeastern United States, Nikisha Ryan, Nar Gurung, Jeremy Byrant, Frank Abrahamsen, Wendell Mcelhenney

Professional Agricultural Workers Journal

Winter feeding systems were evaluated on male Kiko meat goats against the traditional practice of raising goats in the winter months. Forty-Five Kiko bucks were randomly assigned to one of three treatments; Treatment 1, Treatment 2, and Treatment 3 consisted, respectively, of Cosaque Oats, annual Ryegrass, Crimson Clover mix, and 1.0% of BW concentrate supplementation with free choice hay. Forage clippings were analyzed for dry matter, crude protein, and neutral detergent fiber. Body weights were monitored over the grazing period. Blood samples were collected during the experiment, and animals were slaughtered for the evaluation of carcass traits. Data were ...


Evaluation Of Supplementing Whole Cottonseed Within Feedlot Rations During The Stockerphase Of Production With The Goal Of Increasing Average Daily Gain, Emily Lauren Cook Apr 2021

Evaluation Of Supplementing Whole Cottonseed Within Feedlot Rations During The Stockerphase Of Production With The Goal Of Increasing Average Daily Gain, Emily Lauren Cook

Masters Theses & Specialist Projects

Beef calves are weaned at 6-months of age and enter the stocker phase of beef production. Stocker producers have the primary goal of adding weight inexpensively to increase profit on weaned calves. Whole cottonseed is an inexpensive feed ingredient that is popularly top-dressed within dairy and finishing beef diets and is high in protein and energy. During three periods lasting 50-days (fall 2019, fall 2020, and spring 2020), freshly weaned calves were placed on a finishing ration with the goal of increasing average daily gain. Base rations were calculated at 25% tall fescue hay, 23% corn, and 52% distillers’ solubles ...


Longitudinal Assessment Of The Bovine Ocular Bacterial Community Dynamics In Calves, Alison Bartenslager, Nirosh D. Aluthge, John Dustin Loy, Matthew M. Hille, Matthew L. Spangler, Samodha C. Fernando Jan 2021

Longitudinal Assessment Of The Bovine Ocular Bacterial Community Dynamics In Calves, Alison Bartenslager, Nirosh D. Aluthge, John Dustin Loy, Matthew M. Hille, Matthew L. Spangler, Samodha C. Fernando

Faculty Papers and Publications in Animal Science

Background: Infectious Bovine Keratoconjunctivitis (IBK), commonly known as pinkeye, is one of the most significant diseases of beef cattle. As such, IBK costs the US beef industry at least 150 million annually. However, strategies to prevent IBK are limited, with most cases resulting in treatment with antibiotics once the disease has developed. Longitudinal studies evaluating establishment of the ocular microbiota may identify critical risk periods for IBK outbreaks or changes in the microbiota that may predispose animals to IBK.

Results: In an attempt to characterize the establishment and colonization patterns of the bovine ocular microbiota, we conducted a longitudinal study ...


Investigating The Contribution Of Mature Collagen Crosslinks To Cooked Meat Toughness Using A Stewed Beef Shank Model, W. Wu, A. A. Welter, C. K. Chun, T. G. O'Quinn, G. Magnin-Bissel, M. D. Chao Jan 2021

Investigating The Contribution Of Mature Collagen Crosslinks To Cooked Meat Toughness Using A Stewed Beef Shank Model, W. Wu, A. A. Welter, C. K. Chun, T. G. O'Quinn, G. Magnin-Bissel, M. D. Chao

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to investigate mature collagen crosslink densities and their relationship to connective tissue texture using a stewed beef shank model.

Study Description: Connective tissue texture, Warner-Bratzler shear force, and collagen content and characteristics were measured for six different beef shank cuts from eight U.S. Department of Agriculture Low Choice beef carcasses (n = 48).

Results: Deep digital flexor from the foreshank had the toughest connective tissue texture, greatest Warner-Bratzler shear force value, most cooked collagen content, one of the greatest insoluble collagen percentages, as well as greatest raw and cooked pyridinoline densities among all ...


Comparison Of The Physical Attributes Of Plant-Based Ground Beef Alternatives To Ground Beef, K. M. Harr, S. G. Davis, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn Jan 2021

Comparison Of The Physical Attributes Of Plant-Based Ground Beef Alternatives To Ground Beef, K. M. Harr, S. G. Davis, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the physical attributes of three different plant-based, ground beef alternatives in comparison to ground beef of three different fat percentages.

Study Description: Ground beef of three different fat percentages, a retail pea protein-based ground beef alternative, and a traditional soy-based ground beef alternative were obtained from retail stores (n = 15 lots/treatment). Samples from 15 lots of a foodservice soy protein-based ground beef alternative were obtained from a foodservice chain. All samples were fabricated into 0.25 lb patties assigned to one of four assays: color analysis, texture profile analysis, shear ...


Consumer Sensory Evaluation Of Plant-Based Ground Beef Alternatives In Comparison To Ground Beef Of Various Fat Percentages, S. G. Davis, K. M. Harr, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, D. A. Blasi, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn Jan 2021

Consumer Sensory Evaluation Of Plant-Based Ground Beef Alternatives In Comparison To Ground Beef Of Various Fat Percentages, S. G. Davis, K. M. Harr, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, D. A. Blasi, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine if current plant-based protein ground beef alternatives offer similar palatability characteristics to ground beef patties of varying fat percentages.

Study Description: Fifteen different production lots (n = 15/fat level) of 3 lb ground beef chubs of three different fat levels (10%, 20%, and 30%) were collected from retail markets in the Manhattan, KS, area. Additionally, alternative products including a soy and potato protein-based foodservice ground beef alternative, a pea protein-based retail ground beef alternative, and a traditional soy protein-based ground beef alternative, (n = 15 production lots/product) currently available through commercial ...


A Preliminary Investigation Of The Contribution Of Different Tenderness Factors To Beef Loin, Tri-Tip, And Heel Tenderness, C. K. Chun, W. Wu, A. A. Welter, T. G. O'Quinn, G. Magnin-Bissel, D. L. Boyle, M. D. Chao Jan 2021

A Preliminary Investigation Of The Contribution Of Different Tenderness Factors To Beef Loin, Tri-Tip, And Heel Tenderness, C. K. Chun, W. Wu, A. A. Welter, T. G. O'Quinn, G. Magnin-Bissel, D. L. Boyle, M. D. Chao

Kansas Agricultural Experiment Station Research Reports

Objective: The objective is to better understand the contribution of each tenderness factor to the perception of tenderness of three specific beef muscles with similar tenderness ratings.

Study Description: Longissimus lumborum (loin), tensor fascia latae (tri-tip), and gastrocnemius (heel) were collected from 10 U.S. Department of Agriculture low Choice beef carcasses and assigned to a 5- or 21-day aging period (n = 60). Steaks from each aging period from each subprimal were assigned to one of three assays: 1) trained sensory analysis; 2) objective tenderness evaluation (Warner-Bratzler shear force); or 3) physiochemical analysis (sarcomere length, proteolysis, intramuscular fat content, collagen ...


Effects Of Increasing Dietary Oil Inclusion From Different Sources On Growth Performance, Carcass And Meat Quality Traits, And Fatty Acid Profile In Genetically Lean Immunocastrated Male Pigs, V. V. Almeida, J. P. M. Silva, A. P. Schinckel, A. N. Meira, G. C. M. Costa Monteiro Moreira, J. D. Gomes, M, D. Poleti, M. D. B. Dargelio, I. Patinho, C. J. Contreras-Castillo, L. L. Coutinho, G. B. Mourão, J. M. Reecy, D. Koltes, N. V. L. Serão, L. C. A. Regitano, H. Fukumasu, A. P. L. Brustolini, S. M. Alencar, A. Luchiari Filho, A. S. M. Cesar Jan 2021

Effects Of Increasing Dietary Oil Inclusion From Different Sources On Growth Performance, Carcass And Meat Quality Traits, And Fatty Acid Profile In Genetically Lean Immunocastrated Male Pigs, V. V. Almeida, J. P. M. Silva, A. P. Schinckel, A. N. Meira, G. C. M. Costa Monteiro Moreira, J. D. Gomes, M, D. Poleti, M. D. B. Dargelio, I. Patinho, C. J. Contreras-Castillo, L. L. Coutinho, G. B. Mourão, J. M. Reecy, D. Koltes, N. V. L. Serão, L. C. A. Regitano, H. Fukumasu, A. P. L. Brustolini, S. M. Alencar, A. Luchiari Filho, A. S. M. Cesar

Animal Science Publications

Background There has been an increased interest in nutritional strategies to manipulate the fatty acid profile of pigs. Dietary regimens involving the use of oils that are high in monosaturated fatty acid (MUFA), primarily oleic acid (OA), such as canola oil (CO), as well as in omega (n)-3 polyunsaturated fatty acid (PUFA), which are found in fish oil (FO), have been investigated aiming healthier fatty acid profile cuts, with a higher ratio of n-3 to n-6 fatty acids. Therefore, the effects of including 3% soybean oil (SO), CO, or FO in growing-finishing pig diets vs. feeding a standard commercial ...


Nutritional Approaches To Slow Late Finishing Pig Growth: Implications On Carcass Composition And Pork Quality, Emma T. Helm, Jason W. Ross, John F. Patience, Steven M. Lonergan, Elisabeth J. Huff-Lonergan, Laura L. Greiner, Leah M. Reever, Chad W. Hastad, Emily K. Arkfeld, Nicholas K. Gabler Jan 2021

Nutritional Approaches To Slow Late Finishing Pig Growth: Implications On Carcass Composition And Pork Quality, Emma T. Helm, Jason W. Ross, John F. Patience, Steven M. Lonergan, Elisabeth J. Huff-Lonergan, Laura L. Greiner, Leah M. Reever, Chad W. Hastad, Emily K. Arkfeld, Nicholas K. Gabler

Animal Science Publications

Although pork producers typically aim to optimize growth rates, occasionally it is necessary to slow growth, such as when harvest facility capacity is limited. In finishing pigs, numerous dietary strategies can be used to slow growth so pigs are at optimal slaughter body weights when harvest facility capacity and/or access is restored. However, the impact of these diets on pork carcass quality is largely unknown. Thus, this study aimed to evaluate the efficacy of dietary strategies to slow growth in late finishing pigs and evaluate their effects on carcass composition and pork quality. Mixed-sex pigs (n = 897; 125 ± 2 ...


Organic Production Of Livestock And Livestock Products In Nebraska, Elliott James Dennis Dec 2020

Organic Production Of Livestock And Livestock Products In Nebraska, Elliott James Dennis

Extension Farm and Ranch Management

First paragraph:

USDA “Certified Organic” is a form of production that has received considerable public attention in the last 10 years, particularly among small, beginning and/or minority farmers. Spiking retail prices for red meat and poultry have seemingly accelerated consumer’s interest in organic locally produced products. Consumers demonstrate their desire for these products by paying premiums when purchasing meat products. Producers receive premiums by either directly marketing live animals to consumers that are custom harvested or marketing animals to meat wholesalers. The primary difference is the way premiums are captured. Producers doing custom harvesting capture the full premium ...


The Use Of Inorganic And Organic Acids As Short Duration Antimicrobial Dips On Mitigating Pathogens Present On Commercial Chicken During Peri-Harvest, Dana Kristen Dittoe Dec 2020

The Use Of Inorganic And Organic Acids As Short Duration Antimicrobial Dips On Mitigating Pathogens Present On Commercial Chicken During Peri-Harvest, Dana Kristen Dittoe

Theses and Dissertations

With poultry being the most consumed meat in the United States, poultry processors must provide consumers with safe, wholesome products. As a consequence, poultry processors are faced with the challenge of reducing the presence of foodborne pathogens such as Salmonella spp. and Campylobacter jejuni among raw poultry products. Though multi-hurdle approaches using antimicrobials are placed throughout processing to reduce these pathogens, Salmonella and C. jejuni still persist among raw poultry. Thus, it was the objective of the current dissertation to investigate various antimicrobials, organic and inorganic acids, as short duration dips and sprays as means to reduce common pathogens (Salmonella ...


Characterization Of Growth Patterns And Meat Quality Characteristics Of Four Commercial Broiler Strains In Small Bird And Large Bird Programs In The United States, Clay Johnny Maynard Dec 2020

Characterization Of Growth Patterns And Meat Quality Characteristics Of Four Commercial Broiler Strains In Small Bird And Large Bird Programs In The United States, Clay Johnny Maynard

Theses and Dissertations

Through current trends in animal protein consumption, the United States poultry industry has seen a drastic rise in production and popularity. Over the last few decades, poultry meat has surpassed both beef and pork production to become the most widely consumed animal protein. This rise may be accredited to an increased transition to more health-conscious consumers. As more consumers purchase poultry as a lean source of protein, the need for a superior quality product is of great interest to poultry integrators.

Relationships between commercial broiler lines have been well documented in previous years, but constant and intensive genetic selection in ...


Evaluation Of Selected Bacillus Direct-Fed Microbial Candidates In Reduced Energy Diets On Live Performance, Carcass Characteristics, And Foot Pad Dermatitis, Kyle Teague Dec 2020

Evaluation Of Selected Bacillus Direct-Fed Microbial Candidates In Reduced Energy Diets On Live Performance, Carcass Characteristics, And Foot Pad Dermatitis, Kyle Teague

Theses and Dissertations

Bacillus spp. are ubiquitous, Gram-positive, spore forming bacteria that are commonly recovered from the environment and gastrointestinal tract (GIT) of poultry. These spores are capable of withstanding harsh condition such as feed pelletization, which facilitates inclusion in poultry feeds. Once ingested by the bird, spores germinate into metabolically active vegetative cells which can produce extracellular enzymes which can hydrolyze otherwise indigestible components of the feed. Soybean meal (SBM) is the gold standard vegetable protein source for non-ruminant animals worldwide and is included in practically all poultry diets in the United States at levels ranging from 10 to more than 30 ...


Using Triallelic Snps For Determining Parentage In North American Yak (Bos Grunniens) And Estimating Cattle (B. Taurus) Introgression, Theodore S. Kalbfleisch, Jessica L. Petersen, R. G. Tait Jr., Jiansheng Qiu, Veronica Basnayake, Peter H. Hackett, Michael P. Heaton Nov 2020

Using Triallelic Snps For Determining Parentage In North American Yak (Bos Grunniens) And Estimating Cattle (B. Taurus) Introgression, Theodore S. Kalbfleisch, Jessica L. Petersen, R. G. Tait Jr., Jiansheng Qiu, Veronica Basnayake, Peter H. Hackett, Michael P. Heaton

Faculty Papers and Publications in Animal Science

Background: Genetic testing for pedigree accuracy is critical for managing genetic diversity in North American (NA) yak (Bos grunniens ), a population expanded mostly from imported zoological park specimens. DNA testing also enhances species conservation by identifying recent B. taurus F1 hybrid ancestors (within three generations). Biallelic single nucleotide polymorphisms (SNPs) can accomplish either task, but increases the marker count and costs necessary to achieve both. Our aim was to identify novel, multifunctional, triallelic yak SNPs (tySNPs), with each having two alleles for yak parentage testing, and a third allele for identifying recent cattle introgression.

Methods: Genome sequences were aligned to ...


Mandibulofacial Dysostosis Attributed To A Recessive Mutation Of Cyp26c1 In Hereford Cattle, Renae L. Sieck, Anna M. Fuller, Patrick S. Bedwell, Jack A. Ward, Stacy K. Sanders, Shi-Hua Xiang, Sichong Peng, Jessica Lynn Petersen, David J. Steffen Oct 2020

Mandibulofacial Dysostosis Attributed To A Recessive Mutation Of Cyp26c1 In Hereford Cattle, Renae L. Sieck, Anna M. Fuller, Patrick S. Bedwell, Jack A. Ward, Stacy K. Sanders, Shi-Hua Xiang, Sichong Peng, Jessica Lynn Petersen, David J. Steffen

Faculty Papers and Publications in Animal Science

In spring 2020, six Hereford calves presented with congenital facial deformities attributed to a condition we termed mandibulofacial dysostosis (MD). Affected calves shared hallmark features of a variably shortened and/or asymmetric lower mandible and bilateral skin tags present 2–10 cm caudal to the commissure of the lips. Pedigree analysis revealed a single common ancestor shared by the sire and dam of each affected calf. Whole-genome sequencing (WGS) of 20 animals led to the discovery of a variant (Chr26 g. 14404993T>C) in Exon 3 of CYP26C1 associated with MD. This missense mutation (p.L188P), is located in an ...


Genomic Analysis Of Igg Antibody Response To Common Pathogens In Commercial Sows In Health-Challenged Herds, Leticia P. Sanglard, Piggen Canada, Benny E. Mote, Philip Willson, John C.S. Harding, Graham S. Plastow, Jack C.M. Dekkers, Nick V.L. Serão Oct 2020

Genomic Analysis Of Igg Antibody Response To Common Pathogens In Commercial Sows In Health-Challenged Herds, Leticia P. Sanglard, Piggen Canada, Benny E. Mote, Philip Willson, John C.S. Harding, Graham S. Plastow, Jack C.M. Dekkers, Nick V.L. Serão

Faculty Papers and Publications in Animal Science

Losses due to infectious diseases are one of the main factors affecting productivity in the swine industry, motivating the investigation of disease resilience-related traits for genetic selection. However, these traits are not expected to be expressed in the nucleus herds, where selection is performed. One alternative is to use information from the commercial level to identify and select nucleus animals genetically superior for coping with pathogen challenges. In this study, we analyzed the genetic basis of antibody (Ab) response to common infectious pathogens in health-challenged commercial swine herds as potential indicator traits for disease resilience, including Ab response to influenza ...


Diseño De Un Sistema De Estandarización Y Nomenclatura De Cortes Bovinos Comerciales, Néstor Camilo Sánchez Rodríguez, Manuel Arturo Gómez Cruz Oct 2020

Diseño De Un Sistema De Estandarización Y Nomenclatura De Cortes Bovinos Comerciales, Néstor Camilo Sánchez Rodríguez, Manuel Arturo Gómez Cruz

Zootecnia

El proyecto se llevó a cabo durante el primer y segundo semestre del año 2019 en las instalaciones de una planta de transformación cárnica: beneficio (sacrificio – faenado), desposte, empaque y comercialización; ubicada en la ciudad de Bogotá, D.C. Se diseñó un sistema de estandarización, tipificación y nomenclatura de Postas bovinas comerciales Colombianas, estructurado de información pertinente para la economía de la cadena cárnica bovina del país; allí se encuentra contenido: Nombre común y científico de cada posta y su respectivo equivalente internacional (EE.UU, Brasil, Argentina); localización anatómica de la relación músculo/posta; además, se incluyó en el catálogo ...


Uncertainties Abound In Nebraska Livestock Market Forecasts, Elliott James Dennis Sep 2020

Uncertainties Abound In Nebraska Livestock Market Forecasts, Elliott James Dennis

Extension Farm and Ranch Management

About one of the only things certain about forecasts this year has been the great deal of uncertainty. Numerous “novel” situations have confronted the industry making it difficult to estimate price magnitudes rather than just price direction. Clustered plant closures, government quarantine restrictions, and increasing at home phone consumption are just a few of the major issues the beef industry has had to tackle in the last six to eight months. Some things have returned to “normal” such as packing plant capacity and food service demand. Others are still in ongoing recovery.

Who knows what “normal” or “standard operating procedure ...


A Historical Perspective On The Holcomb Fire: Differences And Similarities To The Covid-19 Situation And Other Significant Market Events, Elliott James Dennis Sep 2020

A Historical Perspective On The Holcomb Fire: Differences And Similarities To The Covid-19 Situation And Other Significant Market Events, Elliott James Dennis

Extension Farm and Ranch Management

Copyright 2020, the author. Used by permission.


Comparing Profitability And Management Factors Across Operation Type: Independent Vs. Contract Growing, Elliott James Dennis Sep 2020

Comparing Profitability And Management Factors Across Operation Type: Independent Vs. Contract Growing, Elliott James Dennis

Extension Farm and Ranch Management

First paragraph:

There is strong local and national interest in adding hog barns to existing row crop operations. Declining on farm income over the past several years has accelerated this interest. Grain operations cite diversifying farm income, adding another family to the farm operation, and/or replacing commercial fertilizer expense as the primary reasons for adding a hog barn.


Hog Barn Density And Location In U.S. And Nebraska, Elliott James Dennis Sep 2020

Hog Barn Density And Location In U.S. And Nebraska, Elliott James Dennis

Extension Farm and Ranch Management

There is strong local and national interest in adding hog barns to existing row crop operations. Declining on farm income over the past several years has accelerated this interest. Grain operations cite diversifying farm income, adding another family to the farm operation, and/or replace commercial fertilizer expense as the primary reasons for adding a hog barn.

While there is industry demand to increase hog contract growing, these agreements can possess significant benefits and risks to producers. This is the first of a four part series which will discuss some financial and legal implications of adding a hog barn to ...


Respiratory Chain Activity And Protein Expression In Skeletal Muscles From High And Low Feed Efficient Swine Within The Same Genetic Line, Earsie L. Alcorn De Feliz Jul 2020

Respiratory Chain Activity And Protein Expression In Skeletal Muscles From High And Low Feed Efficient Swine Within The Same Genetic Line, Earsie L. Alcorn De Feliz

Theses and Dissertations

Current as well as past studies have provided evidence for a connection between macroeconomic/agricultural and cellular/biochemical basis of feed efficiency (FE; gain:feed) in farm animal production. Our investigation of respiratory chain activity, mitochondrial protein oxidation and protein expression was an expansion to the subcellular/molecular level. In this study we investigated the entire complex (Cx) of the electron transport chain (ETC) for differences in Cx activities in mitochondria isolated from skeletal muscle in high (HFE) and low (LFE) feed efficient swine within the same genetic line. Review of literature provided information for the connection between feed efficiency ...


The Effects Of Excess Dietary Sulfur Using Supplemental Sodium Sulfate On Beef Steer, Heifer, And Progeny Productive And Physiological Responses, Jamie Hawley Jul 2020

The Effects Of Excess Dietary Sulfur Using Supplemental Sodium Sulfate On Beef Steer, Heifer, And Progeny Productive And Physiological Responses, Jamie Hawley

Theses and Dissertations

For studies 1 through 3, 20 steers of predominantly Angus breeding, were stratified by body weight (279 ± 13.2 kg), assigned randomly to 6 paddocks, and fed a low S ground corn and soybean meal supplement that did not contain any byproduct feeds (0.31% total dietary S; LS) or LS supplement with an additional 0.25% S provided from sodium sulfate (Na2SO4; 0.58% total dietary S; HS) for a 114-d growing phase. Steers were moved to feedlot (373 ± 0.2 kg), remained on prior dietary S treatments, and fed corn and soybean meal diets (0.19 and 0 ...


Effects Of Supplementing Crystalline L-Valine And L-Isoleucine And A Novel Threonine Biomass In Reduced Crude Protein Diets Fed To Broilers, Derrell Trevor Lee Jul 2020

Effects Of Supplementing Crystalline L-Valine And L-Isoleucine And A Novel Threonine Biomass In Reduced Crude Protein Diets Fed To Broilers, Derrell Trevor Lee

Theses and Dissertations

Poultry nutritionists continue to identify methods to lower feed price without compromising broiler growth performance, processing yields, or animal well-being. A common approach is to reduce dietary crude protein (CP), the second most expensive component in a broiler diet. Subsequently, reducing CP will reduce the inclusion levels of intact protein sources (e.g., soybean meal [SBM]), which can be accomplished by supplementing individual amino acids (AA). This methodology not only reduces diet cost, pending if feed-grade AA are more economical, but can contribute to improving broiler health and environmental sustainability. Therefore, two experiments were conducted to evaluate individual feed-grade AA ...


The Impact Of Oxidative Stress On Postmortem Meat Quality, Nicolas J. Herrera May 2020

The Impact Of Oxidative Stress On Postmortem Meat Quality, Nicolas J. Herrera

Theses and Dissertations in Animal Science

Tenderness is the primary factor to influence consumer palatability in fresh meat. The tenderization of muscle is dependent on proteolytic mechanisms, including calcium dependent, non-lysosomal endogenous enzymes such as calpains and proteasomes. These mechanisms have been indicated alongside apoptosis early postmortem as cascades of apoptotic events promote ideal conditions for postmortem tenderization. Recent literature has identified oxidative stress-mediated events to be linked to apoptotic activity. Oxidative stress is defined as the overwhelming production of reactive species compared to homeostatic, endogenous antioxidants present within muscle systems. These conditions exhaust antioxidant function and facilitate reactive species to alter protein, lipid, or nucleic ...


The Efficacy Of Extended-Release Eprinomectin For The Reduction Of Horn Flies, Face Flies, And Fecal Egg Counts Of Parasitic Nematodes In Replacement Beef Heifers, Sophia F. Landers May 2020

The Efficacy Of Extended-Release Eprinomectin For The Reduction Of Horn Flies, Face Flies, And Fecal Egg Counts Of Parasitic Nematodes In Replacement Beef Heifers, Sophia F. Landers

Animal Science Undergraduate Honors Theses

The purpose of this study was to evaluate the efficacy of extended-release eprinomectin against horn flies, face flies, and fecal egg counts of parasitic nematodes in crossbreed replacement beef heifers. Fifty-four heifers were randomly placed into three treatment groups (N=18 heifers/treatment). Group 1 was administered the labeled dosage of extended-release eprinomectin on day 0. Group 2 acted as the negative control. Group 3 received the anthelmintic injection once a quarter of the heifers in the group reached the threshold treatment level for horn flies (N=200 flies/animal; day 41). Nematode infections were measured via fecal egg counts ...


From Fields To Factories: The Industrialization Of The United States’ Cattle Industry, Joseph Petersen May 2020

From Fields To Factories: The Industrialization Of The United States’ Cattle Industry, Joseph Petersen

History | Senior Theses

This paper will look at the changes of the United States of America's cattle and beef industry from the 19th into the 21st century. It will also show how the industry has evolved into its current state and predict the changes to come. This paper will be evaluating how technology and equipment have changed the traditional farming and ranch lifestyles. While also breaking down the economies from pre-industrial times into modern day. This paper will also explore the effect that technology, equipment, ranching styles, labor and financial changes had on the cattle and beef industry. Finally, this paper will ...


Use Of Nitrite-Embedded Packaging Film For Color Stability Of Alternatively Cured, Fully Cooked Bologna, Michael S. Cropp, James S. Dickson, Rodrigo Tarté, Joseph G. Sebranek Apr 2020

Use Of Nitrite-Embedded Packaging Film For Color Stability Of Alternatively Cured, Fully Cooked Bologna, Michael S. Cropp, James S. Dickson, Rodrigo Tarté, Joseph G. Sebranek

Animal Science Publications

Nitrite-embedded packaging film was investigated for potential effects on the color stability of alternatively cured meats. The impact of nitrite-embedded film on color stability of large-diameter sandwich bologna was assessed over a 125-d lighted display period. Five treatments of large-diameter bologna were manufactured: (1) a conventionally cured control packaged with conventional film (“CON-CF”), (2) an alternatively cured formulation (cultured celery juice powder plus cherry powder) packaged with conventional film (“CJP-CF”), and (3) an alternatively cured formulation (cultured celery juice powder plus cherry powder) packaged with nitrite-embedded film (“CJP-NEF”). An additional alternatively cured formulation (4) Natpre T-10 EML Plus S was ...


Valorization Of Carrot Processing Waste, Alexandra M. Duval Mar 2020

Valorization Of Carrot Processing Waste, Alexandra M. Duval

Master's Theses

Commercial carrot processors produce up to 175,000 tons of carrot waste annually. Carrot Mash (CM) is the term referring to the waste by-product of peeled baby carrot processing. Transportation of carrot processing waste is expensive due to its high- water content (approx. 83-95%). High in bioactive compounds (carotenoids) and dietary fibers, it is expected that its conversion into a value-added by-product is of interest to the carrot processing industry. Hemicellulose-rich plant materials have proven to be a source of oligosaccharides, which are known for their beneficial prebiotic activity. The objectives of this research were to: 1) determine the effect ...