Dairy Science Commons^™

Preferential Binding Of Polyphenols In Blackcurrant Extracts With Milk Proteins And The Effects On The Bioaccessibility And Antioxidant Activity Of Polyphenols, Ting Mao, Fnu Akshit, Iresha Matiwalage, Subha Sasidharan, Caren Meyn Alvarez, Philip Wescombe, Maneesha S. Mohan

Dairy Science and Food Science Faculty Publications: 2022 to Present

Milk proteins are well-known delivery agents; however, there is no clear understanding of the competitive interactions of milk proteins with polyphenols in mixed complex systems. Here, we investigate the preferential competitive interactions of different polyphenols present in blackcurrant extract with milk proteins by quantifying the protein-bound polyphenols and comparing the factors affecting these interactions. In addition, bioaccessibility and antioxidant activity were studied after in vitro gastric digestion. Our results indicated that polyphenols from blackcurrant extracts were preferentially bound to caseins more than whey proteins, with noncovalent interactions causing secondary structural changes in the protein. The hydrophobicity and the charge of …

Changes In Milk Protein Functionality At Low Temperatures And Rennet Concentrations, Mahmoud E. A. Hamouda, Prafulla Salunke

Dairy Science and Food Science Faculty Publications: 2022 to Present

This study aimed to evaluate the influence of low-concentration rennet on the chemical, rheological characteristics, and protein fractions of skim milk (SM) at 4 ± 1 °C. Skimmed milk (SM) was divided into four lots of 500 mL, and diluted rennet (1:10,000) was added at different levels at 4 ± 1 °C. The treatments included control (no rennet), T1 (0.001 mL/rennet), T2 (0.01 mL rennet), and T3 (0.1 mL rennet) treatments, which were incubated for 24 h. The sampling was performed at 0, 1, 2, 6, 12, and 24 h, and the SM after incubation time was heated to 73 …

The Effect Of Soluble Soybean Polysaccharide Addition To Permeate Concentrate On Lactose Crystallisation, Growth And Recovery During Lactose Manufacturing, Venkateswarlu Sunkesula, Prafulla Salunke, Lloyd E. Metzger

Dairy Science and Food Science Faculty Publications: 2022 to Present

Lactose is manufactured from permeates of cheese whey, milk protein concentrate and a mix of both using a crystallisation process. Several factors, such as solute supersaturation, cooling rate and impurities, influence lactose crystallisation. This study focussed on the effect of soluble soybean polysaccharides (SSPS) on crystallisation during lactose manufacture from concentrated permeate solutions by evaluating lactose crystal growth and recovery with and without SSPS addition. Adding 0.1% (w/w) SSPS resulted in a significant difference (P > 0.05) in lactose crystal size and yield. The results suggest that using SSPS during lactose manufacturing from permeate concentrates could influence lactose crystallisation and recovery

The Evaluation Of Feed Additives On Reducing Enteric Methane Production From Cattle, Reba L. Colin

Department of Animal Science: Dissertations, Theses, and Student Research

Environmental sustainability can be positively impacted by the inclusion of feed additives to reduce enteric methane production from cattle. Methane production can be affected by feed additives that either alter the rumen environment or act as methanogenesis inhibitors. A reduction in methane from cattle can contribute to meeting carbon neutrality.

A metabolism study was conducted to evaluate Alga 1.0, a product containing bromoform, fed to cattle to evaluate the effects on gas emissions. Treatments were (0, 69, or 103 g/d Alga 1.0) fed in a corn-based diet. Headbox-style indirect calorimeters were used to measure gas emissions. Feeding Alga 1.0 linearly …

Homogenization And Thermal Processing Reduce The Concentration Of Extracellular Vesicles In Bovine Milk, Anna P. Colella, Anuradha Prakash, John Miklavcic

Food Science Faculty Articles and Research

Extracellular vesicles (EVs) in bovine milk confer beneficial physiologic effects to consumers. Industrial processing treatments may affect the amount or bioactivity of EVs intrinsic to bovine milk. We investigated how the content and concentration of EVs were affected by homogenization and thermal processing of raw bovine milk. Raw milk was processed by homogenization, low-temperature (LT) heat, or pasteurization [high-temperature short-time (HTST) and ultra-high-temperature (UHT)] in a pilot processing facility. EVs were isolated from the raw and processed bovine milk using differential ultracentrifugation and quantified using a nanoparticle tracking analyzer. Bovine milk EVs were assessed for total miRNA and protein concentrations …

Kluyveromyces Marxianus Prepared As A Ready To Use Supplemental Food (Rusf), Zachary Christman

Applied Science Program: Theses

Ready to Use Supplemental Food (RUSF) is a nutrient dense paste or compressed bar used to supplement a person’s nutritional needs because of malnutrition or due to food shortages. The purpose of this article is to demonstrate some methods of how the dairy organism Kluyveromyces marxianus can be used to enrich the protein value of bread or ferment a substrate such as wheat bran into a more digestible form.

Fatty Acid, Carotenoid And Fat-Soluble Vitamin Composition Of Multispecies Swards Grown In Ireland—Implications For A Sustainable Feed In Dairy Farming, Samuel Rapisarda, Graham O'Neill, Nissreen Abu-Ghannam

Articles

Although traditional ryegrass pastures are still commonly used, they require intense management and input and do not perform well during the summer months. Multispecies systems have been recognised as more sustainable, needing less fertiliser and being tolerant to drought and heat. While data on monoculture system fat composition exist, information for multispecies is scarce. The present study compared the fatty acid (FA), carotenoid and fat-soluble composition of a multispecies system (consisting of perennial ryegrass, timothy, white clover, red clover, chicory and plantain) (MULTI) with two other conventional grazing systems (monoculture perennial ryegrass (PRG) and a binary mixture of perennial ryegrass …

Dairy Digest 2023 : Live Like Someone Left The Gate Open, South Dakota State University Dairy Club

Dairy Digest

This is the 2023 Dairy Digest. The Diary Digest is published annually by the South Dakota State University Dairy Club. The Digest contains information and news about the activities and members of the SDSU Dairy Club for the academic year 2022 - 2023.

Polyphenol Characterization And Antioxidant Capacity Of Multi-Species Swards Grown In Ireland—Environmental Sustainability And Nutraceutical Potential, Samuel Rapisarda, Nissreen Abu-Ghannam

Articles

Ruminant production systems are major contributors to greenhouse gases emissions, with animal feeding practices being the main cause for methane and nitrous oxide’s release. Although feeding animals forages has been proven to be more sustainable, traditional ryegrass monocultures still require a lot of input (e.g., fertilisers and pesticides). Multi-species swards, consisting of different swards, such as grasses, forage legumes and herbs, need less management and fertiliser, produce more dry matter, and also add a variety of phytochemicals into the animal diet. In particular, polyphenols have been associated with a positive impact on animal health and productivity. However, data on the …

High Protein Powders Fortification Of Nonfat Yoghurt: Impact Of Protein Source, Protein To Total Solids Ratio, Storage, And Seasonality On The Functionality Of Nonfat Yoghurt Made Using Glucono-Δ-Lactone (Gdl), Kartik Shah, Prafulla Salunke, Lloyd Metzger

Dairy Science and Food Science Faculty Publications: 2022 to Present

Nonfat yoghurt is a popular fermented product across the world. High protein powders such as Skim Milk Powder (SMP), Nonfat Dry Milk (NDM), and Milk Protein Concentrate (MPC) can be utilized in yoghurt formulations. The final Total Solids (TS), source and amount of protein in the formulation, and the physicochemical changes during storage may impact the functionality of yoghurt-type products. The objective of the study was to evaluate the effects of storage of SMP, NDM, MPC40, and MPC70 on the functionality of nonfat yoghurts at three different protein/ TS levels. Additionally, the impact of SMP and NDM manufactured in different …

How Weather Affects Total Mixed Rations And Why It Is Significant To Dairy Cattle, Juliana Baranowski

Honors College

The objective of this study was to determine how weather affects the dry matter percentage of a TMR fed to dairy cattle. Daily feed samples were collected from the University of Maine’s J.F. Witter Teaching and Research Center and stored in a freezer until dry matters could be determined. The feed samples were later thawed out, then placed in an oven at 60oC for a minimum of three days. This allowed all the moisture to be evaporated so the DM could be calculated. The maximum, minimum and average temperatures, as well as the precipitation and humidity were obtained daily from …

Dairy Digest 2022 : A Hoofprint In Time, South Dakota State University Dairy Club

Dairy Digest

This is the 2022 Dairy Digest. The Diary Digest is published annually by the South Dakota State University Dairy Club. The Digest contains information and news about the activities and members of the SDSU Dairy Club for the academic year 2021 - 2022.

Postprandial 25-Hydroxyvitamin D Response Varies According To The Lipid Composition Of A Vitamin D3 Fortified Dairy Drink, Aislinn F. Mccourt, Steven L. Mulrooney, Graham O'Neill, E. Dolores O'Riordan, Aifric M. O'Sullivan

Articles

In-vitro evidence suggests that the lipid component of foods alters vitamin D absorption. This single-blinded, cross-over postprandial study examined the effect of changing the lipid component of a 20 µg vitamin D3 fortified dairy drink on postprandial 25(OH)D concentrations. Participants consumed one dairy drink per visit: a non-lipid, a pre-formed oleic acid micelle, an olive oil and a fish oil dairy drink. There was a significant time*drink*baseline status effect on 25(OH)D concentrations (p = 0.039). There were no time*drink, time or drink effects on 25(OH)D in vitamin D sufficient participants (>50nmol/L). However, there was an effect of time …

Single-Dose Oral Challenges To Validate Eliciting Doses In Children With Cow’S Milk Allergy, Paul J. Turner, Yvonne M. D'Art, Bettina Duca, Sophia A. Chastell, Guadalupe Marco-Martin, Rosialzira N. Vera-Berrios, Olaya Alvarez, Raphaëlle Bazire, Pablo Rodríguez Del Río, Marta Vazquez-Ortiz, Joseph L. Baumert, Ronald Van Ree, Clare E.N. Mills, Montserrat Fernandez-Rivas, Jonathan O.B. Hourihane

Department of Food Science and Technology: Faculty Publications

Background: There is increasing interest in the use of eliciting doses (EDs) to inform allergen risk management. The ED can be estimated from the distribution of threshold doses for allergic subjects undergoing food challenges within a specified population. Estimated ED₀₅ values for cow's milk (the dose expected to cause objective allergic symptoms in 5% of the milk-allergic population) range from 0.5 mg to 13.9 mg cow's milk protein. We undertook a single-dose challenge study to validate a predicted ED₀₅ for cow's milk of 0.5 mg protein.

Methods: Participants were recruited from 4 clinical centres. Predetermined criteria were used …

Dairy Digest 2021 : Striving To Support And Sustain, South Dakota State University Dairy Club

Dairy Digest

This is the 2021 Dairy Digest published annually by the South Dakota State University Dairy Club. The Digest contains information and news about the activities and members of the SDSU Dairy Club for the academic year 2020 - 2021.

Jackrabbit Dairy & Food Review, Winter 2020-2021, Dairy And Food Science Department

The Jackrabbit Dairy & Food Review

This is the Winter 2020- 2021 Jackrabbit Dairy and Food Review.

It contains the following articles and information:
Message from the Department Head
New Personnel
Judging Activities
Dairy Club
Food Science Club
Student Accomplishments
Professional Activities of Faculty and Staff
Dairy Facilities
2020 Graduates
Where Are They Now?
Scholarships
Dairy and Food Science Students
Outreach
Research Highlights

Dairy Digest 2020 : Rooted In Tradition, South Dakota State University Dairy Club

Dairy Digest

This is the 2020 Dairy Digest published annually by the South Dakota State University Dairy Club. The Digest contains information and news about the activities and members of the SDSU Dairy Club for the academic year 2019 - 2020.

Jackrabbit Dairy & Food Review, Winter 2019-2020, Vikram V. Mistry

The Jackrabbit Dairy & Food Review

This is the Winter 2019- 2020 Jackrabbit Dairy and Food Review.
It contains the following articles and information: Message from the Department Head, David A. Thompson Endowment, New Personnel, Judging Activities, Dairy Club, Student Accomplishments, Food Science Club, Career Opportunities, Professional Activities of Faculty and Staff, Dairy Facilities, 2019 Graduates, Where Are They Now?, Scholarships, Dairy and Food Science Students, Outreach, Distinguished Alumnus

Validation Of A Commercial Automated Body Condition Scoring System On A Commercial Dairy Farm, Israel L. Mullins, Carissa M. Truman, Magnus R. Campler, Jeffrey M. Bewley, Joao H. C. Costa

Animal and Food Sciences Faculty Publications

Body condition scoring (BCS) is the management practice of assessing body reserves of individual animals by visual or tactile estimation of subcutaneous fat and muscle. Both high and low BCS can negatively impact milk production, disease, and reproduction. Visual or tactile estimation of subcutaneous fat reserves in dairy cattle relies on their body shape or thickness of fat layers and muscle on key areas of the body. Although manual BCS has proven beneficial, consistent qualitative scoring can be difficult to implement. The desirable BCS range for dairy cows varies within lactation and should be monitored at multiple time points throughout …

Islands In A Sea Of Aaruul: Globalization And Mongolian Cheesemakers, Pearse Anderson

Independent Study Project (ISP) Collection

Despite being a sparsely-populated country with less than 2% of its land arable, Mongolia has developed a rich and complex food culture, notably for its meat and dairy products, which could soon be at an historic high thanks to the tens of millions of animals on Mongolian pastureland. Many Mongolians and non-Mongolians view the countryside as a sea of milk that is currently being underutilized for economic exploitation. Various projects, whether funded and organized by international NGOs, the Mongolian government, or private companies, have tried to use Mongolian’s dairy resources to fill Mongolian demand, with more recent private ventures also …

Evaluating The Impact Of Feed Supplementation On Productive And Reproductive Efficiency In Smallholder Dairy Cattle In Arusha, Tanzania, Hayley Hall

Independent Study Project (ISP) Collection

This study was performed to determine if supplementing concentrates and/or minerals significantly affect productive and reproductive efficiency in smallholder dairy cattle in Arusha, Tanzania. The goal was to estimate the necessity and effectiveness of supplementing a forage diet on production and reproduction. Data was collected through interviews of small scale dairy cattle owners in nine regions within and around Arusha. Productive efficiency was measured by milk yield per cow per day. Reproductive efficiency was evaluated by the amount of time to heat resumption after calving and reproductive disease status. This was studied because determining the factors that improve the efficiency …

Jackrabbit Dairy And Food Review, Vikram V. Mistry

The Jackrabbit Dairy & Food Review

This is the Winter 2017- 2018 Jackrabbit Dairy and Food Review. It contains the following articles and information: Message from the Department Head, 2017 Graduates, David A. Thompson Endowment, New Faculty and Visitors, information on the Dairy Club and Food Science Club, Judging Activities, Student Accomplishments, Professional Activities of Faculty and Staff, Distinguished Alumni, Dairy Facilities, a list of Scholarships and Dairy and Food Science Students, information on Departmental Outreach and Research Highlights.

Dairy Digest 2018: Home Is Where The Cows Are, South Dakota State University Dairy Club

Dairy Digest

This is the 2018 Dairy Digest published annually by the South Dakota State University Dairy Club. The Digest contains information and news about the activities and members of the SDSU Dairy Club for the academic year 2017 - 2018.

The Use Of Grape By-Products As A Nutrient Rich Cattle Feed, Zachary Christman

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

In this article you will learn about how to use the grape stems, skins and pulp that are generated by the wine industry. Ruminant animals such as cattle can digest this inexpensive yet nutrient rich material. The complete process from wine press to cattle feed is covered in this article. The historical background of using grape by-products and methods to preserve this food source is also presented.

Jackrabbit Dairy And Food Review, Vikram V. Mistry

The Jackrabbit Dairy & Food Review

This is the Winter 2017- 2018 Jackrabbit Dairy and Food Review.
It contains the following articles and information: Message from the Department Head, 2017 Graduates, New Faculty and Visitors, information on the Dairy Club and Food Science Club, Judging Activities, Student Accomplishments, Professional Activities of Faculty and Staff, Distinguished Alumni, Dairy Facilities, a list of Scholarships and Dairy and Food Science Students, information on Departmental Outreach and Research Highlights.

Is Tb Testing Associated With Increased Blood Interferon-Gamma Levels?, Aideen E. Kennedy, Jim O'Mahony, Noel Byrne, John Macsharry, Riona G. Sayers

Department of Biological Sciences Publications

The Republic of Ireland reports a relatively low prevalence of Johne’s disease (JD) compared to international counterparts. Postulated reasons for this include a lower average herd size and a grass-based production system. Ireland also engages in high levels of bovine tuberculosis (bTB) testing. As interferon-gamma (IFN-γ) is believed to play a key role in protecting against JD, it is our hypothesis that administration of purified protein derivative (PPD), as part of the bTB test, is associated with a systemic increase in IFN-γ production, which may potentially limit clinical progression of the disease. We studied 265 cows (202 Friesian and 63 …

Jackrabbit Dairy & Food Review, Vikram V. Mistry

The Jackrabbit Dairy & Food Review

No abstract provided.

Growing Yeast For Livestock, Zachary Christman

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Over 500,000 tons of organic materials such as food scraps are disposed of each year in Wisconsin. A large percentage of this material could be composted or turned into useful products.5 The purpose of this article is to educate farmers and organizations on how to turn food waste into a high value food source for livestock. Yeast can be grown at any time of the year without the large inputs of agricultural chemicals and machinery that is common with other feed production methods. A yeast growing facility can be scalable to any size the producer wants such as a small …

Feasibility, Safety, Economic And Environmental Implications Of Whey-Recovered Water For Cleaning-In Place Systems: A Case Study On Water Conservation For The Dairy Industry, Yulie E. Meneses-GonzáLez

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Several countries around the world are facing the challenge of producing food with limited water resources for a growing population. This reality is forcing all sectors involved in the food supply chain to look for water conservation strategies that contribute to assure global food security. Besides water consumption, the food industry has to deal with wastewater generation; therefore, water reconditioning and reuse is an attractive solution to address both issues. The goal of this research was to demonstrate that high quality water can be recovered from whey, a by-product of the cheese making process, and reused in cleaning-in place (CIP) …

Analysis Of Johne's Disease Elisa Status And Associated Performance Parameters In Irish Dairy Cows, A. E. Kennedy, N. Byrne, A. B. Garcia, Jim O'Mahony, R. G. Sayers

Department of Biological Sciences Publications

Background

Infection with Mycobacterium avium subspecies paratuberculosis (MAP) has been associated with reductions in milk production in dairy cows and sub optimal fertility. The aim of this study was to highlight the production losses associated with testing MAP ELISA positive in Irish dairy cows. Secondary objectives included investigation of risk factors associated with testing MAP ELISA positive. A survey of management practices on study farms was also conducted, with examination of associations between management practices and herd MAP status.

Blood samples were collected from 4188 breeding animals on 22 farms. Samples were ELISA tested using the ID Screen Paratuberculosis Indirect …