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Articles 1 - 16 of 16
Full-Text Articles in Dairy Science
Polyphenol Characterization And Antioxidant Capacity Of Multi-Species Swards Grown In Ireland—Environmental Sustainability And Nutraceutical Potential, Samuel Rapisarda, Nissreen Abu-Ghannam
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 …
Efficacy Of A Typical Clean-In-Place Protocol Against In Vitro Membrane Biofilms, Diwakar Singh, Sanjeev Anand
Efficacy Of A Typical Clean-In-Place Protocol Against In Vitro Membrane Biofilms, Diwakar Singh, Sanjeev Anand
Dairy Science and Food Science Faculty Publications: 2022 to Present
This study evaluates the effectiveness of a typical clean-in-place (CIP) protocol against in vitro biofilms on whey reverse osmosis (RO) membranes developed under static condition. Bacterial isolates obtained from RO membrane biofilms were used to develop single and multispecies biofilms under laboratory conditions. A typical commercial CIP protocol was tested against the 24-h-old biofilms, and included 6 sequential treatment steps based on alkali, surfactant, acid, enzyme, a second surfactant, and a sanitizer treatment step. Experiments were conducted in 4 replicates and the data were statistically analyzed. The results revealed a variation in the resistance of mixed-species biofilms against the individual …
Use Of Micellar Casein Concentrate And Milk Protein Concentrate Treated With Transglutaminase In Imitation Cheese Products—Unmelted Texture, Prafulla Salunke, Chenchaiah Marella, J. K. Amamcharla, K. Muthukumarappan, Lloyd Metzger
Use Of Micellar Casein Concentrate And Milk Protein Concentrate Treated With Transglutaminase In Imitation Cheese Products—Unmelted Texture, Prafulla Salunke, Chenchaiah Marella, J. K. Amamcharla, K. Muthukumarappan, Lloyd Metzger
Dairy Science and Food Science Faculty Publications: 2022 to Present
The amount of intact casein provided by dairy ingredients is a critical parameter in dairy-based imitation mozzarella cheese (IMC) formulation because it has a significant effect on unmelted textural parameters such as hardness. From a functionality perspective, rennet casein (RCN) is the preferred ingredient. Milk protein concentrate (MPC) and micellar casein concentrate (MCC) cannot provide the required functionality due to the higher steric stability of casein micelle. However, the use of transglutaminase (TGase) has the potential to modify the surface properties of MPC and MCC and may improve their functionality in IMC. The objective of this study was to determine …
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
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 …
Effect Of Storage Of Skim Milk Powder, Nonfat Dry Milk And Milk Protein Concentrate On Functional Properties, Kartik Shah, Prafulla Salunke, Lloyd Metzger
Effect Of Storage Of Skim Milk Powder, Nonfat Dry Milk And Milk Protein Concentrate On Functional Properties, Kartik Shah, Prafulla Salunke, Lloyd Metzger
Dairy Science and Food Science Faculty Publications: 2022 to Present
The physicochemical changes during the storage of high protein powders, such as skim milk powder (SMP), nonfat dry milk (NDM), and milk protein concentrates (MPC), can result in a variation in the functional properties of the powders. The objective of this study was to evaluate the effects of the storage of various milk powders (SMP, NDM, MPC40, and MPC70) on their functional properties. Three different lots of the powders were collected from US manufacturers and were analyzed for functional properties after 3, 9, and 15 months of storage at 25 °C. Additionally, this study also evaluated the effects of seasonal …
Use Of Livestock Risk Protection Insurance For Cattle Continues To Grow, Jay Parsons
Use Of Livestock Risk Protection Insurance For Cattle Continues To Grow, Jay Parsons
Cornhusker Economics
When used as a regular part of a market risk management plan, livestock risk protection (LRP) insurance can help protect profits in years where markets turn for the worse. The recent changes to the program have made LRP insurance more appealing to cattle producers and sales of LRP have subsequently increased dramatically. Strong price increases may make LRP unnecessary, but it is difficult to predict when the price increases will end. LRP insurance is a safety net, reducing downside price risk by providing a floor on national price expectations while also allowing producers to take advantage of higher national prices …
The Incidence Of Staphylococcus Aureus Mastitis In Maine Dairy Cattle, Morgan Belvin
The Incidence Of Staphylococcus Aureus Mastitis In Maine Dairy Cattle, Morgan Belvin
Honors College
This project investigated the factors surrounding the incidence of Staphylococcus aureus (SA) mastitis in Maine dairy cattle. This type of mastitis is driven by an antibiotic resistant pathogen that is very contagious among cattle, though farmers are often unaware of how common this type of mastitis is and that it could be present in their herds. My hypothesis was that specific farm factors, like milkers performing other tasks during milking, as well as the act of pre-dipping versus not pre-dipping, would explain the increase in SA mastitis. A thirty-seven-question IRB-approved survey was subsequently distributed to farmers in the University of …
How Weather Affects Total Mixed Rations And Why It Is Significant To Dairy Cattle, Juliana Baranowski
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 …
Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin
Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin
Masters Theses & Specialist Projects
Bovine mastitis, caused by a wide array of pathogens, results in a substantial economic loss for the dairy cattle livestock industry. β-defensins are a part of the bovine’s innate immune system and act as the first line of defense against mastitis. Only foundational research has been done on β-defensins’ ability to treat and prevent mastitis. There have been no analytical methods reported in the literature for analyzing β-defensins in bovine milk. This research aims to create an analytical approach to determine β-defensins in bovine milk. It is challenging to determine an analyte in a complex sample matrix, and milk is …
Effects Of Feeding Probiotics To Pre-Weaned Dairy Calves, Sara Tomis
Effects Of Feeding Probiotics To Pre-Weaned Dairy Calves, Sara Tomis
Honors Scholar Theses
Pre-ruminant calves are particularly susceptible to pathological and environmental stressors that may have negative effects on their health and growth. Supplementing probiotics to this vulnerable population may have positive implications for the dairy industry, as probiotics may encourage improved growth rates and enhanced health in dairy neonates. However, there is variation in existing literature with regard to effectiveness. This study seeks to explore the impact of dietary probiotic supplement on health and growth parameters in pre-weaned dairy calves. Holstein and Jersey calves (n=30) were assigned to 1 of 2 treatment groups, receiving either 0 or 5 grams of probiotic containing …
Importance Of A Dietary Cation-Anion Difference In Peripartum Dairy Cows, Laura A. Motsinger, Jacob Hadfield
Importance Of A Dietary Cation-Anion Difference In Peripartum Dairy Cows, Laura A. Motsinger, Jacob Hadfield
All Current Publications
At calving, nutrient requirements of dairy cows increase to support milk synthesis. Energy and protein requirements are increased at the initiation of lactation (Moore et al., 2000). Additionally, calcium requirements increase tremendously to meet the demands of lactation (Moore et al., 2000). Calving and subsequent milk synthesis can cause calcium concentrations in the blood to drop. When the demand for calcium exceeds the cow’s ability to mobilize calcium, hypocalcemia (low blood calcium) occurs, which can negatively impact production. This fact sheet reviews hypocalcemia in dairy cows and how to implement hypocalcemia prevention strategies.
Improving The Longevity Of Dairy Cattle: An Important Initiative For The Swiss Dairy Industry, Frances Mcmillan
Improving The Longevity Of Dairy Cattle: An Important Initiative For The Swiss Dairy Industry, Frances Mcmillan
Independent Study Project (ISP) Collection
Swiss dairy cattle rarely live a productive life of longer than 5 years- sometimes even less, and therefore fail to reach their maximum lactation potential. They are often prematurely culled due to udder diseases, fertility problems, lameness, or the farmer’s need to make room for a calving heifer. However, farmers rarely record the real reasons for removing a cow from the herd, due to a sense of pressure and obligation to produce and a lack of universal standards regarding longevity to assist in this decision. This is a monumental problem, from both an environmental and animal welfare point of view, …
Perspective Of Dairy Producers From California, Idaho, South Dakota, And Washington: Health And Business Implications Of The Covid-19 Pandemic During The Second Wave, Ainhoa Valldecabres, J. Wenz, Fernanda Ferreira, Mireille Chahine, Joseph Dalton, Mario E. De Haro-Martí, Maristela Rovai, Noelia Silva-Del-Rio
Perspective Of Dairy Producers From California, Idaho, South Dakota, And Washington: Health And Business Implications Of The Covid-19 Pandemic During The Second Wave, Ainhoa Valldecabres, J. Wenz, Fernanda Ferreira, Mireille Chahine, Joseph Dalton, Mario E. De Haro-Martí, Maristela Rovai, Noelia Silva-Del-Rio
Dairy Science and Food Science Faculty Publications: 2022 to Present
The aim of this study was to document California, Idaho, South Dakota, and Washington dairy producers' perspectives on the health and business implications of COVID-19 during the pandemic second wave. Dairy producers were reached by a 14-question anonymous mail survey during June and July of 2020. We obtained 226 responses (response rate: 9.3% CA, 8.6% ID, 31.4%, and 10.0% WA). Responses were grouped by state (CA: 48.7%, ID: 15.9%, SD: 21.7%, or WA: 13.7%) and dairy size [based on number of cows; small (<100): 14.1%, medium (100–499): 27.7%, medium-large (500–1,999): 33.2%, or large (≥2,000): 25.0%]. Survey responses were summarized, and multiple correspondence analysis was used to map responses and identify data clusters. At the time of the survey, some respondents suspected (3%) or had confirmed (9%) COVID-19 cases on their premises. Respondents were somewhat or very concerned about the health (75%) and business (92%) implications associated with COVID-19. Producers were concerned about the health of their families, employees, and employees' families; having to reduce production; workforce shortage; limited goods availability; and lack of services. Producers perceived that their employees were somewhat or very concerned (74%) with the pandemic. There was COVID-19 safety information or training provided (78%) or intended (4%) in English (22%), Spanish (23%), or both (55%). The focus of training was as follows: how to remain healthy at work (91%) and at home (60%), what to do if a worker gets sick (77%), and sick leave information (54%). Nevertheless, 18% of the respondents answered that training was not going to be provided. The following control measures implemented: providing hand sanitizer or disinfectant wipes (78%), instruction on frequent hand-washing (76%), social distancing (59%), prevention of employee gatherings (54%), providing and requiring the use of face masks (49%), and limiting on-farm visitors (44%). Multiple correspondence analysis showed that concern with health …
Dairy Digest 2022 : A Hoofprint In Time, South Dakota State University Dairy Club
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.
Evaluation Of The Effects Of Water Quality On Drinking Preferences Of Heifer Calves, Nirosh Senevirathne, Jill Anderson
Evaluation Of The Effects Of Water Quality On Drinking Preferences Of Heifer Calves, Nirosh Senevirathne, Jill Anderson
Dairy Science and Food Science Faculty Publications: 2022 to Present
Drinking water quality requirements focus mainly on removing hazardous substances from the water supply, making it safe to drink and appropriate for livestock use. However, there is a concern that high mineral content in water may affect the drinking behavior of heifer calves, which may affect health and performance. In South Dakota, the primary water sources for agricultural use are surface or groundwater. Water quality varies between different regions of the state; in the eastern part of the state, the water is classified as “hard water” and calcium is the primary mineral found in the water. Our objective was to …
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
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 …