Dairy Science Commons^™

Nebraska Bqa: Handling Compromised Animals, Rob Eirich

Nebraska Beef Quality Assurance Program

Cattle producers have long recognized the need of proper husbandry and stewardship for the animals entrusted into their care. Best livestock production practices, based on research and sound science, help ensure the well-being, animal health and productivity of cattle.

Calf Branding/Processing Time And Beef Quality Assurance, Rob Eirich

Nebraska Beef Quality Assurance Program

It is spring and that means branding time across cattle country. As producers are finishing calving season and preparing for branding/processing, it is important to review Beef Quality Assurance (BQA) guidelines. Let's take a minute to look at the key BQA principles:

Audits And Assessments In Beef Cattle Production, Rob Eirich

Nebraska Beef Quality Assurance Program

Assessments and audits are becoming a part of doing business in beef cattle production, as we are seeing beef processors implementing third-party audits. Since beginning as the Nebraska Director of Beef Quality Assurance (BQA) in July, I have been studying and gathering information on the National Cattlemen's Beef Association (NCBA) Assessment Guides and third-party audits in the beef industry.

Nebraska Beef Quality Assurance: Focused On The Safety, Wholesomeness And Quality Of Beef

Nebraska Beef Quality Assurance Program

Across the nation, beef producers face the challenge of making a living from the land, while producing safe, wholesome beef. Beef that will provide a great eating experience each and every time for American and International consumers.

Dairy Digest 2014, South Dakota State University Dairy Club

Dairy Digest

No abstract provided.

The Jackrabbit Dairy Review, Vikram Mistry

The Jackrabbit Dairy & Food Review

No abstract provided.

Activating The Expression Of Human K-Rasg12d Stimulates Oncogenic Transformation In Transgenic Goat Fetal Fibroblast Cells, J. Gong, Zhongde Wang, I. Polejaeva, R. Salgia, C. Kao, T. Chen, L. Chen

Animal, Dairy, and Veterinary Science Faculty Publications

Humane use of preclinical large animal cancer models plays a critical role in understanding cancer biology and developing therapeutic treatments. Among the large animal candidates, goats have great potentials as sustainable sources for large animal cancer model development. Goats are easier to handle and cheaper to raise. The genome of the goats has been sequenced recently. It has been known that goats develop skin, adrenal cortex, breast and other types of cancers. Technically, goats are subject to somatic cell nuclear transfer more efficiently and exhibit better viability through the cloning process. Towards the development of a goat cancer model, we …

The Effects That Liquid And Solid Cattle Manure Have On The Water Quality Of Drainage Ditches In Putnam County, Ohio, Janelle Horstman

Honors Projects

Lake Erie has experienced harmful algal blooms with increased frequency since the mid-1990s due to excess nutrients from Rivers, such as the Maumee River, and largely agricultural watersheds. Nonpoint source pollution from agriculture contributes to eutrophication, algal blooms, and the degradation of water quality. This creates stress on aquatic fauna, reduced aesthetic quality, odor, and limits of the water for usage of drinking, recreation, and industry. This research paper asks what the contributions of having access to manure application records, soil records, and information about antibiotics have on what is known about manure management and antibiotic resistance, which has been …

Lactational Performance Of Dairy Cows Fed Yeast Derived Microbial Protein In Low And High Forage Diets, Angela Kristia Manthey

Electronic Theses and Dissertations

The objective of this study was to investigate the effect of substituting soybean meal products with yeast-derived microbial protein [(YMP) DEMP; Alltech Inc., Nicholasville, KY] in diets containing two forage concentrations. Sixteen Holstein cows (4 primiparous and 12 multiparous) were randomly assigned to a replicated 4 × 4 Latin square in a 2 × 2 factorial arrangement of treatments. Diets contained low (LF; 45% of diet DM) or high forage (HF; 65% of diet DM) and YMP at 0 (NYMP) or 2.25% (WYMP) of the diet. The forage mix consisted of 67% corn silage and 33% alfalfa hay (DM basis). …

The Impact Of Dual Chamber Cow Waterbeds As A Freestall Base, Barbara Alice Wadsworth

Theses and Dissertations--Animal and Food Sciences

The objectives of this research were to compare lying time, milk yield, rumination time, hock score, stall cleanliness, and stall temperature for 97 cows (Holsteins (n = 71), Jerseys (n = 10), and crossbreds (n = 16)) housed on Dual Chamber Cow Waterbeds™ (DCCW, Advanced Comfort Technology, Reedsburg, WI) or conventional rubber mattresses (MAT). This study was conducted at the University of Kentucky Coldstream Research Dairy Farm from January 18, 2012 to May 3, 2013. Lying times were longer (P < 0.01) for cows housed on the DCCW (10:32 ± 0:13) compared to cows housed on the MAT (9:47 ± 0:15). Milk yield was not different (P ≥ 0.05) between cows housed on the DCCW or MAT. Rumination times were greater (P = 0.03) for cows housed on MAT (6:44 ± 0:08) compared to cows housed on DCCW (6:29 ± 0:08). Hock scores were lesser (P = 0.02) for cows housed on DCCW (1.86 ± 0.03) compared to cows housed on MAT (1.97 ± 0.04). Stall cleanliness was not different (P ≥ 0.05) between the DCCW and the MAT. The DCCW stall temperature was warmer (P < 0.01) (13.29 ± 0.21 ⁰C) than the MAT (10.52 ± 0.21 ⁰C).

Compost Bedded Pack Barns For Dairy Cattle: Bedding Performance And Mastitis As Compared To Sand Freestalls, Elizabeth A. Eckelkamp

Theses and Dissertations--Animal and Food Sciences

Lameness and mastitis are the two most costly diseases in the dairy industry. Reduction of these diseases through housing and management is beneficial. Compost bedded pack (CBP) and sand freestall barns were compared in a long-term, on-farm study to assess the effect of housing on each disease. Another research objective was to evaluate the effects of ambient weather conditions on moisture and 20 cm internal temperature of CBP. Compost bedded pack moisture, C:N ratio, and internal temperature effects on cleanliness, mastitis, and bedding bacterial counts were also considered. The last research objective was to evaluate the economics of bedding material …

Handling Cattle Through High Heat Humidity Indexes, Rob Eirich

Nebraska Beef Quality Assurance Program

As cattlemen enter the summer months, they need to understand and deal with heat and humidity. Consider incorporating the following practices into management plans to help reduce additional stress.

Johne's Disease, Mycoplasma And Bvd In Utah - Bulk Tank Milk Testing And Comparison To Previous Regional Prevalence And Individual Herd Results Over Time, David J. Wilson, Kerry A. Rood, J. Bunnell, C. Whitehouse, G. M. Goodell, T. M. Byrem

Animal, Dairy, and Veterinary Science Faculty Publications

Dairy herd-level prevalence of Mycobacterium avium subsp. paratuberculosis (MAP), causative agent of Johne’s disease (JD), Mycoplasma spp., and Bovine Viral Diarrhea (BVD) virus were estimated in Utah and surrounding states and compared to previous surveillance results. Milk was collected at 3-4 day intervals on 5 dates (duplicate samples) from each bulk tank on participating farms, samples analyzed separately. One frozen sample was shipped to a laboratory for JD/MAP testing with ELISA and real-time PCR, the other paired sample was shipped to another laboratory for mycoplasma and BVD testing. Mycoplasma was cultured on modified Hayflick medium, standard methods; BVD testing was …

Aquaporins Are Critical For Provision Of Water During Lactation And Intrauterine Progeny Hydration To Maintain Tsetse Fly Reproductive Success, Joshua B. Benoit, Immo A. Hansen, Geoffrey M. Attardo, Veronika Michalková, Paul O. Mireji, Joel L. Bargul, Lisa L. Drake, Daniel K. Masiga, Serap Aksoy

All Peer-Reviewed Publications

Tsetse flies undergo drastic fluctuations in their water content throughout their adult life history due to events such as blood feeding, dehydration and lactation, an essential feature of the viviparous reproductive biology of tsetse. Aquaporins (AQPs) are transmembrane proteins that allow water and other solutes to permeate through cellular membranes. Here we identify tsetse aquaporin (AQP) genes, examine their expression patterns under different physiological conditions (blood feeding, lactation and stress response) and perform functional analysis of three specific genes utilizing RNA interference (RNAi) gene silencing. Ten putative aquaporins were identified in the Glossina morsitans morsitans (Gmm) genome, two more than …

The Cost Of Affordable Food, Candice L. Cobuzzi

SURGE

When someone puts a piece of food in front of me, I don’t just see a piece of food.

Instead, I see an innocent cow being cornered by a forklift and slaughtered, its limp, moist tissue hung on a long conveyer belt with hundreds of others.

I see hundreds of chemically-injected chickens packed into a dark barn with no hope of seeing sunlight in their lifetime.

I see immigrants pulled from their houses like criminals, taken away from the lives they’ve spent years building for themselves and their families, working for the same food company that courted them into the …

Culturally Speaking: You Don't Know Beans About Cottage Cheese, Phillip Tong

Dairy Science

No abstract provided.

Determination Of The Expression Patterns Of Bovine Non-Classical Major Histocompatibility Complex (Mhc) Class I Proteins, Parveen Parasar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This project was funded by the United States of Department of Agriculture (USDA), which funds research aimed at improving production and animal health. The aim of this study was to advance knowledge of maternal immune tolerance to the fetus and mechanisms bovine non-classical MHC class I proteins employ to interact with immune cells and render them inert towards the fetus.

A fetus is a tissue graft inside the mother’s uterus yet must be accepted by the mother to maintain a successful pregnancy. Reproductive insufficiency and pregnancy failure are major causes of production loss in cattle, especially in cloned animals. Knowledge …

Culturally Speaking: Lactose Intolerance: A Condition As Old As The Stone Age, Phillip Tong

Dairy Science

No abstract provided.

Effect Of Adding Salt During The Diafiltration Step Of Milk Protein Concentrate Powder Manufacture On Mineral And Soluble Protein Composition, Vandna Sikand, Phillip S. Tong, John Walker

Dairy Science

Milk protein concentrate (MPC) powders offer a great potential for use in an array of food applications because of their nutritional and functional values. However, MPC powders with protein content ≥80% (MPC80) exhibit poor solubility and hence restrict their potential use. The objective of this study was to determine the impact of adding salt during the diafiltration stage of MPC80 manufacture on solubility, turbidity, and to compare minerals and protein content of supernatants of ultracentrifuged samples with control sample. Three types of samples were produced: MPC80-C (control) with or without salt treatment, MPC80-Na (150 mM NaCl), and MPC80-K (150 mM …

Milk Fat Globule Membrane Isolated From Buttermilk Or Whey Cream And Their Lipid Components Inhibit Infectivity Of Rotavirus In Vitro, K. L. Fuller, T. B. Kuhlenschmidt, M. S. Kuhlenschmidt, Rafael Jiménez-Flores, S M. Donovan

Dairy Science

Milk fat is encapsulated in a milk fat globule membrane (MFGM) that contains bioactive glycoproteins and glycolipids. The MFGM inhibits infectivity of rotavirus (RV), activity that has been attributed to its glycoprotein and carbohydrate components. However, previous studies of proteins and oligosaccharides in the MGFM have not accounted for all the bioactivity associated with the complete MFGM. The lipid fraction of the MFGM accounts for half of its composition by weight, and we postulate that this fraction should be tested by itself to determine if it plays a role in antiviral activity. Herein, the anti-RV activity of an organic extract …

2012 Annual Report, Various Authors

Annual Reports

No abstract provided.

Grass-Fed Dairy Steer Enterprise Analysis For Alexandre Family Ecodairy Farms, Joseph Jackson Alexandre

Agribusiness

Alexandre Family EcoDairy Farms (AFEF) is a family dairy farm, producing organic milk in northern California. In the last decade, AFEF has been expanding in value added natural food enterprises, including pastured free-range eggs, pastured pork and grass-fed beef.

This study focuses on the analysis of an organic grass-fed ground beef from dairy-beef cross steers coming from AFEF. The grass fed beef enterprise was analyzed by adopting a UC Davis cost and returns study, modifying it to AFEF production limitations and conditions. Through partial budgeting analysis, opportunity costs were discovered leading to breakeven prices for the final grass fed ground …

Holder, Earl, 1909-2005 (Sc 1026), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scan (Click on "Additional Files" below) for Manuscripts Small Collection 1026. Transcription of a 1985 interview by Ray Buckberry with Earl Holder regarding the development of the dairy business in Warren County, Kentucky from 1926 to 1973.

Culturally Speaking: Options For Making Greek Yogurt, Phillip Tong

Dairy Science

No abstract provided.

Regulation And Expression Of Nanog, Oct4, And Sox2 In The Bovine Blastocyst Following Somatic Cell Nuclear Transfer, Justin Scott Hall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Animal, Dairy, and Veterinary Sciences Department (ADVS) and the Center for Integrated Biosystems (CIB) at Utah State University are studying various molecular mechanisms involved in the animal cloning process. This study involves the extensive network of people, facilities, equipment, and funding already associated with the CIB and ADVS joint project.

Cloning involves many molecular challenges that for the most part have become roadblocks for the normal development of the fetus. The mechanisms necessary to transform an adult cell into a competent stem cell that can then transform and develop into a healthy organism are poorly understood. Some of these …

Analysis Of Single Nucleotide Polymorphism Panels For Bovine Dna Identification, Kimberly A. Blanchard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Single nucleotide polymorphisms (SNPs) have great power in resolving questions of unknown parentage on ranches or dairies where errors could have been made in pedigree record keeping or when such records were simply not kept. Currently a panel of 88 SNPs based on a panel originally created by USDA-MARC is commercially available from the company Fluidigm^®. Our objective was to determine whether or not the number of SNPs could be reduced to form a smaller, more cost-efficient parentage-testing panel. A smaller panel would be beneficial to farmers and researchers alike in the reduction of time spent running and …

The Micronutrient Profile Of The Typical American Diet Enhances Colorectal Carcinogenesis, Stephany Del Carmen Perez Monsanto

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The typical Western dietary pattern is characterized by the consumption of energy-dense, nutrient-poor foods and has been linked to increased risk of colorectal cancer (CRC). Our research group previously developed the total Western diet (TWD) that emulates typical human dietary intakes of macro- (carbohydrates, proteins, and fats) and micronutrients (vitamins and minerals) on an energy density basis for rodents. In the present study, we sought to determine the impact of TWD on biomarkers of metabolic syndrome and obesity in comparison to a commercial 45% fat diet used for models of diet-induced obesity (DIO diet) and the standard basal AIN93G diet, …

Effects Of Addition Of Somatic Cells To Caprine Milk On Cheese Quality, D. Sánchez-Macías, A. Morales-Delanuez, A. Torres, L. E. Hernández-Castellano, R. Jiménez-Flores, N Castro, A. Argüello

Dairy Science

Milk quality criteria and limits for somatic cell count (SCC) established in many countries make it difficult to maintain SCC of bulk tank goat milk below the threshold, due to non-infection factors linked to goat physiology. The aim of this study was to objectively verify the effects of SCC on fresh caprine milk cheese. Somatic cells were recovered from pooled healthy goat milk, and added to low SCC raw or pasteurised goat milk. Miniature cheeses were made and evaluated after 1 and 7 d. Somatic cells had a major effect on lipolysis, increasing free fatty acids regardless of whether milk …

Rna Sequencing To Study Gene Expression And Single Nucleotide Polymorphism Variation Associated With Citrate Content In Cow Milk, A. Cánovas, G. Rincón, A. Islas-Trejo, R. Jiménez-Flores, A. Laubscher, J. F. Medrano

Dairy Science

The technological properties of milk have significant importance for the dairy industry. Citrate, a normal constituent of milk, forms one of the main buffer systems that regulate the equilibrium between Ca2+ and H+ ions. Higher-than-normal citrate content is associated with poor coagulation properties of milk. To identify the genes responsible for the variation of citrate content in milk in dairy cattle, the metabolic steps involved in citrate and fatty acid synthesis pathways in ruminant mammary tissue using RNA sequencing were studied. Genetic markers that could influence milk citrate content in Holstein cows were used in a marker-trait association study to …

How Does Moo-Ving To Pasture Feeding Affect The Nutrient Composition Of Cows' Blood And Milk?, Jillian Smith

Inquiry Journal 2013

No abstract provided.