Digital Commons Network^™

Highly Targeted Metabolomics Coupled With Gene Expression Analysis By Rt–Qpcr Improves Beef Separation Based On Grass, Grain, Or Grape Supplemented Diet, Lucas Krusinski, Chloe Castanon, Rosalee S. Hellberg, Isabella C. F. Maciel, Muhammad Ahsin, Stephan Van Vliet, Jason E. Rowntree, Jennifer I. Fenton

Food Science Faculty Articles and Research

The objective of this study was to use a multi-omics (i.e., gene expression quantification, metabolomics, and fatty acid [FA] profiling) approach to separate and authenticate beef from three different dietary groups. In this 2-year study, Red Angus steers (n = 54) were randomly allocated to one of three treatments: (1) complex biodiverse pasture (GRASS), (2) total mixed ration (TMR) in feedlot (GRAIN), or (3) TMR in feedlot supplemented with 5% (dry matter) grapeseed extract for the last 30 days (GRAPE). FAs were measured by gas chromatography-mass spectrometry (GC–MS), secondary metabolites were identified using ultra-high-performance liquid chromatography tandem mass spectrometry …

Effects Of Citric Acid, Synbiotic, And Probiotic Supplementation Through Drinking Water On Growth Performance, Carcass Yield, And Blood Biochemistry Of Broiler Chickens, Shahadot Hossain, Biswajit Kumar Biswas, Subir Das, Faija Sadia Pory, Rabin Raut, Fatima Yeasmin, Sharif Uddin Khan, Prantho Malakar Dipta, Sabbir Alom Shuvo, Tahera Yeasmin, Raihanul Hoque

Food and Animal Sciences Faculty Research

No abstract provided.

Milk Composition Variability In Texas Dairy Farms Over Time, Emma Van Dieden

Honors Theses

The composition of milk plays a vital role in determining the quality of dairy products. However, there has been limited research on how key milk components have changed over time in the diverse production regions of Texas. This thesis seeks to achieve two main goals: first, to quantify long-term trends from 2007 to 2022 in butterfat percentage, protein percentage, and somatic cell count (SCC) across the ten Texas Dairy Marketing regions, and second, to assess whether the differences observed in these indicators across regions are statistically significant. Data from the USDA Southwest Milk Marketing Area provided insights at the regional …

The Implications Of The Scientific Developments Behind Oxidative Stress, Heat-Shock Proteins, And Antioxidants On Neurodegenerative Pathology, Nolan Wilbourn

Honors Theses

Homeostasis is essential for the health and development of all organisms, serving as a universal defense mechanism that ensures the stability of physiological processes faced with external and internal stimuli in the form of health challenges (Archana et al., 2017). Maintaining homeostasis is crucial for our health, as it helps keep the body's internal balance. However, this delicate equilibrium is challenged by various environmental factors, such as diet, exposure to chemicals, and fluctuations in temperature (Collier et al., 2017). These disruptions can lead to dysfunction in cellular processes, particularly affecting the production and regulation of proteins vital for biological functions. …

Drinking Behavior And Performance In Neonatal Swine, Yasmine Taylor

Honors Theses

This behavioral study analyzes the relationship between water intake and growth performance in pre-weaned piglets. Growth is paramount in pork production, and maximizing growth in weaned piglets has been thoroughly researched. However, one crucial aspect of growth is often overlooked: water, especially in neonatal piglets. Therefore, this study aimed to determine if there is a positive relationship between water intake and performance in pre-weaned piglets by observing different behaviors. Weights were recorded at birth, after 7-10 days, and at weaning. Piglets were observed three times a day, in the morning, afternoon, and evening, for 21 days via scan sampling. Observation …

How Aza Zoos And Aquariums Are Helping To Fill The Gap, Erika Bauer, Grace Fuller, Candice Dorsey

Animal Sentience

Oldfield & Bonano (2024) identify significant gaps in scientific knowledge about certain animal taxa, such as reptiles, amphibians, invertebrates, and fish. Despite some efforts, published literature remains limited, forcing decision-makers to rely more on experiential knowledge than scientific evidence. AZA-accredited zoos and aquariums are uniquely positioned to bridge these gaps and advance animal welfare science by fostering collaboration, building partnerships, and promoting multi-disciplinary approaches to welfare assessments.

Advantages, Disadvantages, And Factors Influencing The Reproductive Performance Of Gilts And Sows Raised In Gestational Group Housing And Free-Farrowing Systems, Natchanon Dumniem Dr., Thomas D. Parsons, Padet Tummaruk

The Thai Journal of Veterinary Medicine

In the modern global pig industry, there is a growing interest in animal-friendly agriculture, encouraging farmers to prioritize humane practices and meet the welfare needs of their animals. In developed countries, consumers are increasingly concerned about animal welfare, particularly regarding pigs as social animals, advocating for their housing in groups that reflect their natural behaviors in the wild. There is significant societal pressure to eliminate the use of crate systems, which cause discomfort to animals in commercial farming. In these systems, breeding females are often restricted in movement throughout the reproductive cycle. As a result, alternative husbandry and housing systems …

Establishing Methods For In Vitro Static Culture Of Gut Microbiomes For Nutritional Intervention Studies, Jeremy Case

Student Research Symposium

The National Cancer Institute reports colorectal cancer as the leading cause of cancer death for individuals under 50 in the United States (American Cancer Society). These rates continue to rise with poor diet, microbiome dysbiosis, and gut inflammation being the primary drivers.

Our lab performs nutrient- intervention studies on DSS/AOM colitis-induced mouse models fed the total Western diet, reflective of the average American’s diet. A poor diet promotes gut microbiome dysbiosis and subsequent colitis, ultimately yielding colon cancer. We seek to understand how the introduction of a bioactive compound may lessen or promote these effects in in vivo mouse models. …

Sustainable Poultry Farming: A Concept Of Iot-Based Poultry Management System For Small-Scale Farmers, Ayodeji Akinsoji Okubanjo, Ignatius Kema Okakwu, Olufemi Peter Alao, Nurudeen Samuel. Lawal, Ayoola Abiola Babalola, Abisola Olayiwola

Al-Bahir

Conventional poultry management techniques are failing to meet increased demand for poultry products as the population continues to grow. As a result, this issue has become a major concern for small-scale farmers, particularly those in low-income areas, in terms of food security. One of the main reasons for this is that the farmers rely on intensive farming methods which are inefficient for automating daily poultry operations. However, intensive farming methods pose major environmental concerns to ecosystems and poultry health. Also, the environmental conditions, welfare, and productivity of poultry operations may be harmed by the global climate crisis and poultry waste …

Reproductive Performances Of Bali Cattle Under Different Management Systems For Designing Their Breeding Strategies, Dwi Hariyono, Panjono Panjono, Dwi Priyadi, Adisti Rastosari, Eny Endrawati, Tety Hartatik

The Thai Journal of Veterinary Medicine

Reproductive performance is an economically important trait in beef cattle breeding and improvement programs, as it directly influences overall productivity. Key performance indicators, such as age at puberty (AP), age at first mating (AFM), age at first calving (AFC), calving intervals (CI), days open (DO), number of services per conception (NSC), conception rate (CR), and gestation length (GL), can be used to assess reproductive performance. This review summarized findings from previous studies on the reproductive performance of Bali cattle under various management conditions in Indonesia. The literature indicated a range of reproductive performances in Bali cattle, with AP varying from …

Sheep Production, Profitability And Greenhouse Gas Emission Of Mixed Farming Systems In Western Australia's Wheatbelt, Tafesse Estifanos, Amir Abadi Abadi Ghadim, Kate Pritchett, Christophe D'Abbadie, Johnny Machon, Paul Mattingley, Bradley Plunkett, Gus Manatsa, Kerrine Blenkinsop, Ross Kingwell, Clinton K. Revell Dr

Animal production and livestock research reports

The south-western agricultural area of Western Australia is a vital contributor to Australia's agricultural output. It generates over $10 billion annually in agricultural production from 2017–18 to 2021–22 and more than $8 billion in export value over the same period. Mixed farming systems characterise the region, producing broadacre crops (primarily wheat, barley, and canola) and livestock. The region's livestock industry is dominated by sheep production for meat and wool, and the state’s share of the national sheep flock in 2020–21 was at 18%.

This report provides a comprehensive review and industry analysis of sheep production in WA, its economic significance, …

Comparative Performance Of Reciprocal Cross Hybrid Striped Bass In Three Intensive Production Systems, Bartholomew Green, Steven D. Rawles, Matthew E. Mcentire, Candis L. Ray

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Objective: The objective of these two studies was to quantify the comparative performances of yearling and 2- year- old reciprocal cross hybrid Striped Bass (White Bass Morone chrysops ♀ × Striped Bass M. saxatilis ♂), also called sunshine bass, and water quality in traditional and split ponds and an outdoor mixotrophic biofloc technology production system.
Methods: In study 1, two- year- old fish (247.9 g/fish) were stocked at 7,410 fish/ha (0.86 fish/m3) in ponds and 6.3 fish/m2 (7.1 fish/m3) in biofloc system tanks and grown for 151–153 d. In study 2, yearling fish (147.0 g/fish) were stocked at 7,904 fish/ha …

Growing South Dakota (Spring 2025), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Keeping South Dakota's food supply safe
[Page] 6 Controlling environmental listeria
[Page] 8 Inaugural 2+2 vet program class graduates
[Page] 10 Faculty honored for excellence
[Page] 12 New leader for agronomy, horticulture, plant science
[Page] 14 Students spend spring break in South Africa
[Page] 16 Hadacek offers advice to fellow graduates
[Page] 17 Park Interpretation and Management Club starts
[Page] 18 On the front lines with invasive species
[Page] 22 Director Karla Trautman retires
[Page] 24 Helping navigate precision ag
[Page] 26 Growing bigger, better beef
[Page] 28 Jackrabbits Then and Now

Evaluation Of The Effect Of In Ovo Applied Bifidobacteria And Lactic Acid Bacteria On Enteric Colonization By Hatchery-Associated Opportunistic Pathogens And Early Performance In Broiler Chickens, Mitchell C. Rowland, Aaron J. Forga, James Higuita, Makenly E. Coles, Billy M. Hargis, Christine N. Vuong, Danielle Graham

Poultry Science Faculty Publications and Presentations

Probiotics have been used to promote pioneer colonization by beneficial bacteria in poultry. The purpose of the present study (four trials) was to determine if an in ovo injection with Bifidobacterium saeculare (B2-2, B3-4) and/or lactic acid bacteria (LAB18, LAB46) at d18 of embryogenesis reduced Enterococcus and Gram-negative bacterial colonization in the gut at hatch. An environmental challenge model was used to simulate microbial contamination in large-scale hatch cabinets in a laboratory setting. In all trials, gut homogenates obtained from chicks at hatch were plated to enumerate relevant bacterial populations. Performance was evaluated in trials two and four. The top …

Study On Predisposing Factors And Control Measures Against Cryptosporidiosis In Buffalo Calves At Cattle Colony Hyderabad, Sindh, Pakistan, Ali Ul Murtaza, Abdul Latif Bhutto, Jam Kashif Zaman, Mansoor Tariq, Amjad Hussain Mirani, Riaz Ahmed Laghari, Pervez Ahmed Khoso, Muhammad Mohsen Rahimoon, Abdul Saboor, Fayaz Hussain

Journal of Bioresource Management

The current study looked at the variables affecting the frequency of Cryptosporidium Parvum in buffalo calves at the Hyderabad Cattle Colony. From calves, 100 fecal samples were taken in total, preserved, and analyzed using direct smear and Ziehl-Neelsen staining methods. 74 percent of the samples tested positive for Cryptosporidium Parvum. Disease rates were higher in Nili Ravi calves (86 %) compared to Kundhi calves (62 %), with a statistically significant difference (p

The Mechanistic Target Of Rapamycin Mediates Clostridium Perfringens-Induced Chicken Necrotic Enteritis Attenuated By Secondary Bile Acid Deoxycholic Acid, Mohit Bansal, Tahrir Alenezi, Ying Fu, Janashrit Shrestha, Ayidh Almansour, Hong Wang, Anamika Gupta, Rohana Liyanage, Xiaolun Sun

Poultry Science Faculty Publications and Presentations

Clostridium perfringens is a prevalent gut bacterial pathogen in humans and animals. This study investigated the role of the mechanistic targets of rapamycin (mTOR) and deoxycholic acid (DCA) on C. perfringens intestinal infection. Chickens were sequentially infected with Eimeria maxima and received the mTOR inhibitor rapamycin and DCA. C. perfringens-induced necrotic enteritis (NE) was evaluated using body weight gain (BWG), histopathology, bile acids, pathogen colonization, cell infiltration and death, and gene expression. The significant difference of p < 0.05 was analyzed by one-way ANOVA and multiple comparisons. Notably, rapamycin strongly reduced the subclinical and clinical NE histopathologies. DCA and DCA combined with rapamycin alleviated clinical NE and BWG loss. Rapamycin, DCA, and DCA + rapamycin attenuated bile acid reduction in NE birds, and they also reduced immune cell infiltration into the intestinal lamina propria as well as immune cell migration in vitro. At molecular levels, DCA and DCA + rapamycin reduced proinflammatory IFN gamma, MMP9, IL23, and IL17 gene expression. Rapamycin, DCA, and DCA + rapamycin reduced NE-induced intestinal cell apoptosis. Together, these results suggest that mTOR signaling mediates C. perfringens-induced ileitis, and combining mTOR inhibition and DCA improves the intervention efficacy against NE ileitis and BWG loss.

Continuous Exposure To An Aversive Mixture: A Means Of Maintaining Aversion In Sheep Averted To Geigeria Ornativa O. Hoffm. (Vermeerbos) - An Assessment, Leendert D. Snyman

Poisonous Plant Research (PPR)

Establishing aversion to Geigeria ornativa only lasts for some time, after which the induced aversion disappears and sheep start eating G. ornativa again. This behavior is aggravated by the social influence of non-averted sheep in mixed grazing situations. Exposing sheep continuously to a so-called “aversive mixture”, containing an aversive substance (lithium chloride) and the sensory characteristics of the plant (hexane extract of G. ornativa) mixed with a tasty meal (maize meal), following an initial aversion treatment, resulted in sustained aversion to G. ornativa in the field. This method proved to be applicable to mixed grazing situations with averted and …

Restricted Feeding Of Goats During The Last Third Of Gestation And Trans-Generational Effects On Plasma Progesterone In Their Female Offspring, Andrew A. Ponter, Bérengère Laporte, Sabine Roussel, Winai Kaewlamun, Pascale Chavatte-Palmer, Christine Duvaux-Ponter

The Thai Journal of Veterinary Medicine

Feeding levels can vary in goat farms for several reasons. Underfeeding of gestating dairy goats can occur and may influence fetal follicle development and future reproductive performance in their offspring. The objective of this experiment was to study the effect of restricted feeding during the last third of gestation on some reproductive parameters in female offspring (F1). Two feeding groups were formed using 60 Alpine and Saanen dairy goats to produce the F1 female offspring. The control group (C, n = 30) was fed to requirements. The restricted group (R, n = 30) was given the same diet, but the …

Stepwise Regression Analysis To Assess Various Factors Affecting On Fresh Sperm Quality In Ouled Djellal Ram, Yamina Belkhiri, Souheyla Benbia, Farida Bouzebda-Afri, Zoubir Bouzebda, Ramzi Lamraoui

The Thai Journal of Veterinary Medicine

The aim of this study was to evaluate the effect of various factors on fresh semen quality in Ouled Djellal rams. Specifically, we examined the impact of semen collection method, season, ram age, testosterone levels, body weight , and testicular weight. Twelve mature Ouled Djellal rams were used in the trial. Six rams were trained for semen collection using an artificial vagina (AV), while semen from the other six rams was collected using an electroejaculator (EE) biweekly throughout the year. Stepwise regression analysis showed that 62.50% of the variation in sperm volume, 48.60% of the variation in mass motility, 62.70% …

2025 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

This is the catalog for the 102nd Little International 'Little I' Agricultural Exposition, held on March 28 & 29, 2025.

Self-Mustering Yards For Pastoral Livestock Management, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Self-mustering yards (SMYs) are an important component of effective total grazing management in the pastoral regions. These yards are used to self-muster cattle, sheep and goats, as well as native browsers and feral animals as they enter the yards to access the water point.

Dairy & Food Science News, March 2025, Department Of Dairy And Food Science

Dairy & Food Science News

Message from the Department Head
Faculty & Staff Updates
Department Faculty Earn Awards
Midwest Regional Dairy Challenge Competition hosted by SDSU
Small-Scale Dairy Processing Project
Recruitment Updates & Opportunities
Recent Activity
Alumni Mentorship Program
SDSU Food Science Research in the News
Student Updates
Events & Calendar

Effect Of Multispecies Swards On The Fat Composition And Oxidative Stability Of Milk From Dairy Cows In Mid-Late Lactation, Samuel Rapisarda, Kate M. Mccarthy, Tommy M. Boland, Helen Sheridan, Frank J. Monahan, Finbar J. Mulligan, Graham O'Neill, Nissreen Abu-Ghannam

Articles

Multispecies swards have been recognized as more sustainable than traditional ryegrass systems, in addition to providing a range of phytochemicals to the ruminant diet. In this regard, polyphenols may be linked to higher levels of bioactive fatty acids in milk and enhanced nutraceutical properties in dairy products. This study compares the fat composition and oxidative stability of milk produced by cows fed on multispecies swards (MULTI) with milk from two conventional swards [a perennial ryegrass monoculture (PRG) and a mixture of perennial ryegrass and white clover (PRG + WC)] during the Irish summer. Milk from cows fed on MULTI had …

Evaluation Of A Global Capacity Development Project To Educate, Empower And Advance Sustainable Food Production, Felicia J. Tuggle, Olubusola W. Afolayan Msw, Mollie Smith M.Aq., David J. Cline Phd, Onesimus Kiadii Bs

Journal of Social Work in the Global Community

This article presents evaluation findings from the Integrated Aquaculture for Food Production, Education, Empowerment, and Development (iFEED) project, a global capacity development project designed to educate, empower, and advance sustainable food production in Monrovia, Liberia. To develop K–12 teachers’ capacity to integrate STEM education into math and science curriculum for the purpose of preparing a future aquaculture workforce in Liberia, the iFEED project provided educational materials, teacher training, and technical support to 25 teachers in the greater Monrovia Consolidated School District (MCSS). Evaluation findings indicate positive outcomes in increasing instructional capabilities among participating math and science teachers and accelerating action …

Evaluating The Performance Of Broccoli (Brassica Oleracea Var. Italica) In The Sandponics System Using Brackish Water With Biochar And Compost, Gabriel Oyebode

Theses and Dissertations

Some of the most pronounced effects of climate change on agricultural output include the depletion of freshwater resources and heightened salinization of arable land, especially in arid and semi-arid regions, adversely affecting crop yields. Many economic vegetable crops including members of the brassica family are sensitive to salt-stress. The use of organic soil amendments such as biochar and compost as complimentary nutrient sources in the sandponics system can improve the performance of crops. The study aimed to evaluate the effect of organic amendment on the growth performance and yield of broccoli and Nile tilapia (Oreochromis niloticus) under brackish …

Influence Of High Eimeria Tenella Immunization Dosages On Total Oocyst Output And Specific Antibodies Recognition Response In Hybrid Pullets (Gallus Gallus)-A Pilot Study, Marco A. Juarez-Estrada, Guillermo Tellez-Isaias, Victor M. Petrone-Garcia, Amanda Gayosso-Vazquez, Xochitl Hernandez-Velasco, Rogelio A. Alonso-Morales

Political Science Faculty Publications and Presentations

Background: Two high primary-immunization doses of a wild-type E. tenella strain were assessed in healthy pullets (5K versus 10K sporulated oocysts/bird) to understand the effects of coccidia infection. Methods: Acquired immunity was evaluated following primary immunization and two booster doses with the homologous strain. Total oocyst shedding, clinical signs, and viability of every bird/group after each immunization/booster were recorded. Indirect ELISA measured the time course of humoral responses from each immunization group against sporozoite and second-generation merozoite of E. tenella. Antigen pattern recognition on these two asexual zoite stages of E. tenella was analyzed using Western blotting with antibodies from …

Effects Of Allocation Frequency On Cattle Performance And Forage Utilization When Swath Grazing A Sorghum-Sudangrass Hybrid In Eastern Nebraska, Thomas E. Aquino, Mary E. Drewnoski, Pedro Henrique J. Fernandes

Nebraska Beef Cattle Reports

Summary with Implications

A sorghum-sudangrass hybrid was swath grazed by growing steers (529 ± 18 lb) from November 2023 to January 2024. Treatments were offering new forage once (1X) or twice (2X) per week to determine the effect of allocation frequency on animal performance and forage utilization. Average daily gain was not impacted by treatment (1X = 0.45 ± 0.1 lb/day, 2X = 0.45 ± 0.1 lb/day). Pre-and post-graze biomass samples were collected to estimate forage utilization, which was not different between treatments (1X = 57.1 ± 3.6%, 2X = 61.1 ± 3.6%). However, there was a difference in carrying …

The Effects Of Active Substances Of Clinically Important Drugs On The Survival, Development, And Some Adult Traits Of Drosophila Melanogaster Meigen (Diptera: Drosophilidae), Gökçe Üstündağ, Kemal Büyükgüzel, Ender Büyükgüzel

Turkish Journal of Zoology

Drosophila melanogaster Meigen (Diptera: Drosophilidae) was used as a model organism and fed on an artificial diet with different clinically important drugs under laboratory conditions. The effects of fluconazole, acyclovir, and piperazine on the survivorship, development, adult longevity, fecundity, and hatching rate of the insect were investigated. The results showed that the highest concentration of fluconazole (1250 mg/L) significantly decreased both the rate of larvae reaching the 3rd instar and the rate of pupation from 93.00 ± 2.95% to 11.00 ± 2.59% (χ2 = 134.696; df = 1; p = 0.0001). The highest concentration of acyclovir (200 mg/L) significantly reduced …

Differentiation Of Mullus Barbatus And Mullus Surmuletus (Perciformes, Mullidae) From Turkish Waters Of The Mediterranean Sea Using Otolith Shape Analyses, Semra Saygin

Turkish Journal of Zoology

Red mullet (Mullus barbatus) and surmullet (Mullus surmuletus) are valuable components of the commercial fishery industry in the Mediterranean Sea in Türkiye. To date, morphological and genetic characteristics have been used to distinguish these species. This study aimed to determine whether it was possible to distinguish between the two species using the morphometric features of their sagittal otoliths. Sagittal otoliths were subjected to elliptic Fourier analysis, wavelet analysis, and analysis of otolith shape indices for 117 specimens from the Mediterranean Sea coast of Türkiye (Mullus barbatus: 53 individuals; Mullus surmuletus: 64 individuals). Overall, canonical discriminant analysis (CDA) demonstrated strong discrimination …

Growing South Dakota (Winter 2025), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Native Plant Initiative on a mission
[Page] 4 Gees give back
[Page] 7 Christensen named assistant dean
[Page] 8 Fennell honored in plant biology
[Page] 9 New ag communication faculty
[Page] 10 SDSU Extension awards
[Page] 12 Veterinary medicine class welcomed
[Page] 13 Coulter honored
[Page] 14 National beef award winners
[Page] 15 Department celebrates 100 years
[Page] 16 Southeast Research Farm growing
[Page] 18 Saving the flock
[Page] 22 Energize conference inspires
[Page] 24 BeefSD helping producers
[Page] 25 SDSU Extension retirements
[Page] 26 New food safety testing service
[Page] 27 Bringing back bison
[Page] 28 Jackrabbits …