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Articles 1 - 30 of 260
Full-Text Articles in Dairy Science
Genetic Determinants Associated With Persistence Of Listeria Species And Background Microflora From A Dairy Processing Environment, Vaishali Poswal, Sanjeev Anand, Jose L. Gonzalez-Hernandez, Brian Kraus
Genetic Determinants Associated With Persistence Of Listeria Species And Background Microflora From A Dairy Processing Environment, Vaishali Poswal, Sanjeev Anand, Jose L. Gonzalez-Hernandez, Brian Kraus
Dairy Science and Food Science Faculty Publications: 2022 to Present
Listeria monocytogenes is a persistent foodborne pathogen capable of surviving in food processing environments, often in association with diverse environmental microflora. This study examines genomic determinants of persistence, specifically stress adaptation and biofilm-associated traits, in environmental Listeria species and other environmental microflora from a dairy processing facility by analyzing whole-genome sequences of 6 environmental Listeria isolates, 4 ATCC reference strains, and 22 air and floor swab cultures, annotated using the RAST platform. Subsystem analysis revealed that Listeria isolates carried a defined set of genes linked to biofilm formation, antimicrobial resistance, and stress response, though in lower abundance than environmental cultures. …
Enhancing The Biopreservative Effect Of Non-Starter Lactic Acid Bacteria Using Soluble Fiber During Cheese Ripening, Rakesh Kaushik, Sanjeev Anand
Enhancing The Biopreservative Effect Of Non-Starter Lactic Acid Bacteria Using Soluble Fiber During Cheese Ripening, Rakesh Kaushik, Sanjeev Anand
Dairy Science and Food Science Faculty Publications: 2022 to Present
Cheddar cheese ripening creates favorable conditions for desired microbial changes but also allows survival and outgrowth of spores like Clostridium tyrobutyricum and Bacillus licheniformis, leading to late-blowing defects. In the first phase of the study, NSLAB dynamics were evaluated in the presence of spores, where pilot-scale cheeses (110 L) were produced in four treatments: control, T1 (BL), T2 (CT), and T3 (BL+CT), each inoculated at 2.0 Log10 CFU/mL with spores. Results showed that SLAB declined from 8.0 to 0.2 Log10 CFU/g, while NSLAB increased from 2.0 to 8.5 Log10 CFU/g by the third month and remained stable thereafter. Spore counts …
Dairy And Food Science News, Nov 2025, Department Of Dairy And Food Science
Dairy And Food Science News, Nov 2025, Department Of Dairy And Food Science
Dairy & Food Science News
Message from the Department Head
Holiday Cheese Boxes
We are Hiring
Dairy and Food Science Department in the Media
Education abroad program to India - Food and Agriculture Processing: India SDSU Fall 2026
Faculty Updates
Surveys and Studies
Recruitment Updates and Opportunities
SDSU Company Student Recruitment
Student Updates
Alumni Spotlight
Events and Calendar
Dairy And Food Science Student Newsletter, September 4, 2025, Department Of Dairy And Food Science
Dairy And Food Science Student Newsletter, September 4, 2025, Department Of Dairy And Food Science
Dairy and Food Science Student Newsletter
No abstract provided.
Dairy And Food Science News, Sept 2025, Department Of Dairy And Food Science
Dairy And Food Science News, Sept 2025, Department Of Dairy And Food Science
Dairy & Food Science News
Message from the Department Head
Dairy Drive Football Game
Dairy Foods Research @SDSU: Opportunities Galore Webinar
Faculty Updates
Faculty Surveys and Studies
Recruitment Updates & Opportunities
2025 Burger Bash
Meet our Jacks
Student Updates
2025 Eminent Leader in Agriculture, Family and Community
Events & Calendar
Using Automated Activity Monitoring To Detect Resumption Of Cyclicity In Early Lactation—Meta-Analysis, S. Borchardt, T.A. Burnett, T.C. Bruinjé, A.M.L. Madureira
Using Automated Activity Monitoring To Detect Resumption Of Cyclicity In Early Lactation—Meta-Analysis, S. Borchardt, T.A. Burnett, T.C. Bruinjé, A.M.L. Madureira
Dairy Science and Food Science Faculty Publications: 2022 to Present
This meta-analysis aimed to evaluate the efficacy of automated activity monitoring (AAM) in detecting estrous expression and ovulatory status in cows during the voluntary waiting period (VWP). A comprehensive literature search was conducted in PubMed, ScienceDirect, and Google Scholar using specific search terms. Inclusion criteria focused on studies that assessed estrous expression within the VWP using modern AAM systems alongside blood progesterone (P4) measurements. Four manuscripts involving 2,198 cows were included. Data extraction was performed by a single investigator and validated by a coauthor. The analysis considered estrous expression and ovulatory status determined through serial blood P4 measurements. Cows were …
Dairy And Food Science Student Newsletter, August 28, 2025, Department Of Dairy And Food Science
Dairy And Food Science Student Newsletter, August 28, 2025, Department Of Dairy And Food Science
Dairy and Food Science Student Newsletter
No abstract provided.
Dairy And Food Science Student Newsletter, August 8, 2025, Department Of Dairy And Food Science
Dairy And Food Science Student Newsletter, August 8, 2025, Department Of Dairy And Food Science
Dairy and Food Science Student Newsletter
No abstract provided.
Evaluating The Effectiveness Of Individual Cleaning Steps Of A Cip Protocol In Membrane Biofilm Removal Under Dynamic Conditions, Diwaker Singh, Sanjeev Anand
Evaluating The Effectiveness Of Individual Cleaning Steps Of A Cip Protocol In Membrane Biofilm Removal Under Dynamic Conditions, Diwaker Singh, Sanjeev Anand
Dairy Science and Food Science Faculty Publications: 2022 to Present
This study evaluated the effectiveness of individual clean-in-place (CIP) steps in removing biofilms from reverse osmosis (RO) membranes under dynamic flow conditions using the Centers for Disease Control (CDC) biofilm reactor. Biofilms were developed in the laboratory under continuous flow, using mixed-species bacterial isolates obtained from 10-month-old RO membrane biofilms from a commercial facility. Individual CIP chemicals, representative of those used in commercial protocols, were tested against 24 h-old biofilms. Additionally, a complete six-step sequential CIP process was conducted under dynamic conditions, consisting of treatments with alkali, surfactant, acid, enzyme, a secondary surfactant, and sanitizer. All experiments were performed in …
Studying The Population Dynamics Of Nslab And Their Influence On Spores During Cheese Ripening, Rakesh Kaushik, Sanjeev Anand
Studying The Population Dynamics Of Nslab And Their Influence On Spores During Cheese Ripening, Rakesh Kaushik, Sanjeev Anand
Dairy Science and Food Science Faculty Publications: 2022 to Present
Cheese ripening involves microbial changes, with starter lactic acid bacteria (SLAB) initiat- ing fermentation and nonstarter lactic acid bacteria (NSLAB) driving flavor and texture development. However, heat-resistant spores of Clostridium and Bacillus can survive pas- teurization and cause spoilage during ripening. This study evaluated NSLAB dynamics in the presence of spores during cheese ripening. Cheddar cheese samples at pilot-scale level (110 L) with four treatments, namely control, with spores of B. licheniformis (T1), with spores of Cl. tyrobutyricum (T2), and both spores (T3) at 2.0 Log10 CFU/mL, were ripened at 7 ◦C for six months. SLAB declined from 8.0 to …
Dairy Digest, Legan...Dairy 2024-2025, Department Of Dairy And Food Science
Dairy Digest, Legan...Dairy 2024-2025, Department Of Dairy And Food Science
Dairy Digest
This is the 2025 Dairy Club Digest. The Diary Club 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 2023 - 2024.
Characterizing Environmental Background Microflora And Assessing Their Influence On Listeria Persistence In Dairy Processing Environment, Vaishali Poswal, Sanjeev Anand, Brian Kraus
Characterizing Environmental Background Microflora And Assessing Their Influence On Listeria Persistence In Dairy Processing Environment, Vaishali Poswal, Sanjeev Anand, Brian Kraus
Dairy Science and Food Science Faculty Publications: 2022 to Present
Listeria monocytogenes (Lm) may persist in food processing environments (FPEs) alongside diverse background microflora. While microbial communities in FPEs can in- fluence Lm survival, their role in supporting or suppressing its growth remains unclear. This study aimed to characterize the microflora in floor swabs and air samples collected from a dairy processing facility across three seasons and assess their potential impact on the growth of a Lm test strain previously isolated from a dairy processing environment. A total of 167 environmental isolates, representing 30 bacterial genera, were identified. Pseudomonas was consistently prevalent across all sample types. Seasonal shifts in bacterial …
Dairy & Food Science News, March 2025, Department Of Dairy And Food Science
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
Potential Of Anogenital Distance As A Genetic Selection Trait In Canadian Holstein, G.R. Dodd, F.S. Schenkel, F. Miglior, T.C. Bruinjé, M. Gobikrushanth, J.E. Carrelli, M. Oba, D.J. Ambrose, C.F. Baes
Potential Of Anogenital Distance As A Genetic Selection Trait In Canadian Holstein, G.R. Dodd, F.S. Schenkel, F. Miglior, T.C. Bruinjé, M. Gobikrushanth, J.E. Carrelli, M. Oba, D.J. Ambrose, C.F. Baes
Dairy Science and Food Science Faculty Publications: 2022 to Present
Maintaining optimal fertility in dairy cattle herds is a global challenge that is typically addressed through the genetic selection of fertility indicator traits. However, many of the traits currently implemented in breeding programs are heavily influenced by environmental factors, resulting in a slow rate of genetic improvement. Anogenital distance (AGD) has recently emerged as a promising fertility indicator trait due to its association with favorable reproductive outcomes and its higher heritability estimates compared with currently evaluated traits. This study aimed to enhance the understanding of AGD's genetic potential by estimating its genetic parameters in Canadian Holsteins, assessing the reliability …
Dairy & Food Science News, December 2024, Department Of Dairy And Food Science News
Dairy & Food Science News, December 2024, Department Of Dairy And Food Science News
Dairy & Food Science News
Message from the Department Head
Faculty & Staff Updates
New Faculty Joining Our Department
Current Team of Faculty & Staff
Recruitment Updates & Opportunities
Extension Updates
Student Updates
Events & Calendar
From Block To Shred: Understanding The Factors Influencing Shreddability Of Mozzarella Cheese, Gunvantsinh Rathod, Suresh Saatariya, Ram Kumar, Praveen Upreti, Prafulla Salunke, J.K. Amamcharla
From Block To Shred: Understanding The Factors Influencing Shreddability Of Mozzarella Cheese, Gunvantsinh Rathod, Suresh Saatariya, Ram Kumar, Praveen Upreti, Prafulla Salunke, J.K. Amamcharla
Dairy Science and Food Science Faculty Publications: 2022 to Present
Mozzarella cheese (MC) is widely used for pizza ap- plications, and it is generally shredded either in conver- sion plants or in pizzerias. The shreddability of MC is influenced by a variety of factors and it is critical to understand how different Mozzarella cheese types and storage conditions (temperature and age) affect this prop- erty. Three batches each of 3 types of MC (low-moisture Mozzarella (LMM), low-moisture part-skim Mozzarella (LMPS), and reduced fat Mozzarella (RFM)) representing 3 different fat levels were procured directly from a com- mercial manufacturer and stored at 2 different tempera- tures (1.67 and 4.44°C) and evaluated …
In-Line Milk Progesterone Monitoring As A Tool For Precision Reproductive Management, Tony C. Bruinjé, Divakar J. Ambrose, Stephen J. Lebalnc
In-Line Milk Progesterone Monitoring As A Tool For Precision Reproductive Management, Tony C. Bruinjé, Divakar J. Ambrose, Stephen J. Lebalnc
Dairy Science and Food Science Faculty Publications: 2022 to Present
In-line milk progesterone (IMP4) monitoring (Herd Navigator, DeLaval) is a technology that automatically detects onset of cyclicity, estrus, and pregnancy. Sampling starts at 20 DIM and occurs on average every 2 d until pregnancy. Estrus is detected based on a decline in progesterone (P4) concentrations below a threshold, and pregnancy is assessed from 30 to 55 d after AI in cows without return to estrus. Here, we review the potential of IMP4 as a tool for reproductive management. In a series of observational studies with up to 158,961 IMP4 records from 4,353 AI events, we characterized predictors of pregnancy per …
Dairy Club Digest: Udderly Good Times, South Dakota State University Dairy Club
Dairy Club Digest: Udderly Good Times, South Dakota State University Dairy Club
Dairy Digest
This is the 2024 Dairy Club Digest. The Diary Club 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 2023 - 2024.
Transglutaminase Crosslinked Milk Protein Concentrate And Micellar Casein Concentrate: Impact On The Functionality Of Imitation Mozzarella Cheese Manufactured On A Small Scale Using A Rapid Visco Analyzer, Prafulla Salunke, Lloyd Metzger
Transglutaminase Crosslinked Milk Protein Concentrate And Micellar Casein Concentrate: Impact On The Functionality Of Imitation Mozzarella Cheese Manufactured On A Small Scale Using A Rapid Visco Analyzer, Prafulla Salunke, Lloyd Metzger
Dairy Science and Food Science Faculty Publications: 2022 to Present
In dairy-based imitation mozzarella cheese (IMC) formulations, intact casein is critical and imparts IMC with a firm and elastic, stringy, melted texture. Rennet casein (RCN) is the desired ingredient to provide intact casein in IMC and is preferred over milk protein concentrate (MPC) and micellar casein concentrate (MCC). Transglutaminase (TGase), a crosslinking enzyme, alters the physical properties of MPC or MCC and may change IMC functionality. The objective of this study was to determine the effect of TGase-crosslinked MPC and MCC powders on the functionality of IMCs. The TGase treatment included TGase at 0.3 (L) and 3.0 (H) units/g of …
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
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
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 …
Effects Of Dietary Rumen-Protected Choline Supplementation To Periparturient Dairy Cattle On Inflammation And Metabolism In Mammary And Liver Tissue During An Intramammary Lipopolysaccharide Challenge, Turner H. Swartz, Barry Bradford, Laman Mamedova, Kari Estes
Effects Of Dietary Rumen-Protected Choline Supplementation To Periparturient Dairy Cattle On Inflammation And Metabolism In Mammary And Liver Tissue During An Intramammary Lipopolysaccharide Challenge, Turner H. Swartz, Barry Bradford, Laman Mamedova, Kari Estes
Dairy Science and Food Science Faculty Publications: 2022 to Present
The objective of this experiment was to examine the effects of supplementation and dose of rumenprotected choline (RPC) on markers of inflammation and metabolism in liver and mammary tissue during an intramammary lipopolysaccharide (LPS) challenge. Parous Holstein cows were blocked by calving month and randomly assigned within block to receive 45 g/d of RPC (20.4 g/d of choline ions; CHOL45), 30 g/d of RPC (13.6 g/d of choline ions; CHOL30), or no RPC (CON) as a top-dress starting 24 d before expected calving until 21 d postpartum. Cows were alternately assigned within treatment group to either receive an intramammary LPS …
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
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
Effects Of Isoacids Supplementation In Lactating Cows’ Diet Varying In Forage Fiber Level On Performances, Feed Efficiency, And Milk Fatty Acids Profile, Sumon Ahmed
Electronic Theses and Dissertations
No abstract provided.
Effects Of Dietary Rumen-Protected Choline Supplementation To Periparturient Dairy Cattle On Inflammation, Metabolism, And Performance During An Intramammary Lipopolysaccharide Challenge, Turner H. Swartz, Barry Bradford, Laman Mamedova, Kari Estes
Effects Of Dietary Rumen-Protected Choline Supplementation To Periparturient Dairy Cattle On Inflammation, Metabolism, And Performance During An Intramammary Lipopolysaccharide Challenge, Turner H. Swartz, Barry Bradford, Laman Mamedova, Kari Estes
Dairy Science and Food Science Faculty Publications: 2022 to Present
Recent studies have suggested that dietary rumen-protected choline (RPC) supplementation can modulate immune function, attenuate inflammation, and improve performance in periparturient dairy cattle; however, this has yet to be evaluated during a mastitis challenge. Therefore, the objective of this study was to examine the effects of supplementation and dose of RPC on metabolism, inflammation, and performance during an intramammary lipopolysaccharide (LPS) challenge. Parous Holstein cows (parity, mean ± SD, 1.9 ± 1.1 at enrollment) were blocked by calving month and randomly assigned within block to receive either 45 g/d of RPC (20.4 g/d of choline ions; CHOL45, n = 18), …
Incorporation Of Probiotics And Other Functional Ingredients In Dairy Fat-Rich Products: Benefits, Challenges, And Opportunities, Kritika Gaba, Sanjeev Anand
Incorporation Of Probiotics And Other Functional Ingredients In Dairy Fat-Rich Products: Benefits, Challenges, And Opportunities, Kritika Gaba, Sanjeev Anand
Dairy Science and Food Science Faculty Publications: 2022 to Present
This review focuses on the potential opportunities to incorporate functional ingredients like probiotics in the dairy fat-rich matrix to develop functional foods. Many dietary guidelines and the relevant literature have in general indicated many benefits of consuming milk-fat-rich products for the human body. Milk fat contains essential nutrients, including fat-soluble vitamins; short-, medium-, and long-chain with odd and branched chain fatty acids; essential amino acids; and calcium, which are all known for their bioactive properties. In addition, the incorporation of probiotics, which are known for their bioactive properties, could further enhance the products’ attributes. However, direct probiotic addition is known …
Impact Of Transglutaminase Treated Micellar Casein Concentrate And Milk Protein Concentrate On The Functionality Of Processed Cheese Product Slice Formulations, Prafulla Salunke, Lloyd E. Metzger
Impact Of Transglutaminase Treated Micellar Casein Concentrate And Milk Protein Concentrate On The Functionality Of Processed Cheese Product Slice Formulations, Prafulla Salunke, Lloyd E. Metzger
Dairy Science and Food Science Faculty Publications: 2022 to Present
Milk protein concentrate (MPC) is used as an ingredient in processed cheese product (PCP) formulations. However, its use can result in texture defects such as a soft body and restricted melting characteristics. The use of micellar casein concentrate (MCC), which has a higher level of casein and less serum protein, improves the texture of PCP. Further improvement in PCP products may be possible using transglutaminase (TGase), an enzyme that can crosslink proteins. This study aimed to determine the effect of TGase treatment of MPC and MCC retentates on the functionality of MPC and MCC when used in a PCP slice …
Microstructural Characterization Of High-Protein Dairy Powders, Prafulla Salunke, Athira Syamala, Lloyd Metzger
Microstructural Characterization Of High-Protein Dairy Powders, Prafulla Salunke, Athira Syamala, Lloyd Metzger
Dairy Science and Food Science Faculty Publications: 2022 to Present
Dairy proteins are potential and multipurpose ingredients used to prepare various food products. It exhibits many beneficial functionalities and bioactivities in the processing of food products. All the functionalities of different dairy proteins depend on their peculiar structural characteristics. So, the present study aimed to characterize high-protein powders with different matrices (milk protein concentrate (MPC), rennet casein (RCN), micellar casein concentrate (MCC), whey protein isolate (WPI), and native whey concentrate (NWC)) for their composition, handling, and reconstitution properties, and microstructure and compared them with whole milk powder (WMP) and skim milk powder (SMP). The bulk density of the high-protein powders …
Perspectives Of Dairy Employees At The Beginning Of The Covid-19 Pandemic: A Survey Of Health Risks And Educational Needs, Fernanda Ferreira, Maristela Rovai, Mireille Chahine, Mario E. De Haro-Martí, John Wenz, Joseph Dalton, Noelia Silva-Del-Rio
Perspectives Of Dairy Employees At The Beginning Of The Covid-19 Pandemic: A Survey Of Health Risks And Educational Needs, Fernanda Ferreira, Maristela Rovai, Mireille Chahine, Mario E. De Haro-Martí, John Wenz, Joseph Dalton, Noelia Silva-Del-Rio
Dairy Science and Food Science Faculty Publications: 2022 to Present
Our objective was to understand dairy employees' perceptions and educational needs at the onset of the COVID-19 pandemic. A bilingual (English and Spanish), anonymous survey targeted at dairy employees was circulated nationwide via university and allied industry media outlets. Responses (n = 63) from 11 states were received (May–Sep. 2020). Respondents worked in herds ranging from 50 to 40,000 animals in size. Dairy managers (33%) responded mostly to the English survey (52%), whereas entry-level workers (67%) chose the Spanish format (76%). Survey results highlighted different perspectives, educational needs, and preferred sources of information between English- and Spanish-speaking dairy workers. Overall, …
Dairy Digest 2023 : Live Like Someone Left The Gate Open, South Dakota State University Dairy Club
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.