Life Sciences Commons^™

Factors Affecting The Reduction Of Carbon To Nitrogen Ratio In Composted Separated Solids, Mark Fagundes

Dairy Science

The objective of the study was to determine the factors involved in the reduction of carbon to nitrogen ratio in composted separated solids. A single compost windrow was laid on a 6,000 jersey cow dairy farm located in Madera County. Samples were obtained from six separate positions on the pile, every other day. Direct pile measurements on the date of sampling included pile temperature (surface and core), height, width and curvature. Samples were removed from the windrow during each sampling meeting to determine the percent dry matter content. The collected samples were sent out to Denele Analytical Inc. to determine …

Financial Analysis Of Three Value-Added Dairy Enterprises In Vermont, Wisconsin, And New York, Kassidy Kampen

Dairy Science

Value-added agriculture has grown in recent years and is often promoted as a rural development or business survival strategy. For dairy operations, value-added often has meant adding a processing enterprise to an existing dairy farm. This case study examined whether it was profitable to transition to a value-added operation, comparing and contrasting the business characteristics and financial performance of three businesses of similar size in Vermont, Wisconsin, and New York.

The methods included the development of income statements, balance sheets, and economic costs and returns in order to evaluate the profitability of the farming and processing enterprises for each business. …

Safety Hazard Analysis And Corrective Measures For Koot Dairy, Billy Koot

Dairy Science

The objective of the study was to determine any potential safety hazards at Koot Dairy in order to prevent injuries and lawsuits. A hazard walkthrough was performed with employees to help discover hazards and determine the correctible actions that must take place. A farm safety checklist was used to assess some of the most common dairy hazards and to ensure law compliance. The checklist included many potential areas of hazard—first aid and emergency, power and electrical, farm equipment and machinery, farm chemicals, fuel tanks, confined spaces, environment, and workplace policies. After implementing the checklist, it was clear as to what …

Cal Poly Milking Parlor Standard Operating Procedures, Caitlyn Lil Morehart

Dairy Science

The objective of this project is to develop Standard Operating Procedures (SOP’s) for the Cal Poly dairy milk barn, which will help prepare students to be more efficient at milking in the newly renovated milking parlor. A double 10 parallel parlor is to be put into place to update the current milk barn. The current milking parlor is a double 8 herringbone barn which holds eight cows per side that are positioned at an angle. The double 8 herringbone parlor is to be remodeled into a double 10 parallel parlor. In addition, a double 10 parallel barn has ten cows …

Genomic Testing And Method R Variance Components Theory Of Dairy Cattle, Joseph Dewey Coleman

Dairy Science

Abstract

The objective of this study is to determine the change in reliability from non genomic evaluations or Parent Averages to genomic evaluations. Due to recent industry popularity of genomic evaluations the California Polytechnic University, San Luis Obispo, decided to participate in the genetic movement of the dairy cattle industry. Genomic evaluations of both Holstein and Jersey cows at the Cal Poly dairy were chosen based on genetic superiority in order to possibly generate more income for the dairy and increase the herd’s popularity. Leading genomic companies such as Pfizer Animal Health, and GenSeek made genomic evaluation of the Cal …

Proposal To Implement A Surveillance System At The Cal Poly Dairy, Madelyn Cobb

Dairy Science

The objective of this project is to determine how to implement a cost effective and efficient surveillance system at the Cal Poly Dairy. This system would help monitor labor, feed, and cows while increasing the biosecurity, accountability, and efficiency throughout the Cal Poly Dairy. To make this determination, I researched different types of products and the equipment necessary that will meet the needs of the dairy currently and for future projects. A list of specifications was created that help guide the search for appropriate companies and products for this project. Talking to surveillance experts also helped create a better sense …

Who Will Create The Iphone Equivalent In Dairy Foods?, Phillip S. Tong

Dairy Science

No abstract provided.

Effect Of Powder Source And Processing Conditions On The Solubility Of Milk Protein Concentrates 80, V. Sikand, Phillip S. Tong, S. Vink, J. Walker

Dairy Science

No abstract provided.

Economic Impact Of Stable Flies (Diptera: Muscidae) On Dairy And Beef Cattle Production, David B. Taylor, Roger D. Moon, Darrell R. Mark

Department of Agricultural Economics: Faculty Publications

Stable flies, Stomoxys calcitrans (L.), are among the most damaging arthropod pests of cattle worldwide. The last estimate of their economic impact on United States cattle production was published 20 yr ago and placed losses at $608 million. Subsequently, several studies of effects of stable flies on beef cattle weight gain and feed efficiency have been published, and stable flies have become increasingly recognized as pests of cattle on pasture and range. We analyzed published studies and developed yield-loss functions to relate stable fly infestation levels to cattle productivity, and then estimated the economic impact of stable flies on cattle …

Maine Learns To Love Dairying, Erin Love

Historical Ecology Atlas of New England

The transition from subsistence to commercial farming is a defining trend in Maine dairying that continues today. Technological advances that often caused large landscape scale changes were catalysts in the division between small and large farmers. The industry developed in a relatively short time period—the last thirty years of the 19th century—but the characteristic divide between large and small farmers has continued to be exacerbated.

Extended Grazing: A Detailed Analysis Of Irish Dairy Farms, D. Läpple, T. Hennessy, M. O'Donovan

Farm Animal Husbandry Collection

Profitability and factors affecting grazing season length were econometrically analyzed using a representative sample of Irish dairy farms. The objective of this study was to explore what potential exists on Irish dairy farms to extend the grazing season and to quantify the possible economic benefits that result from lengthening the grazing season. Regression results indicate that location factors affect the length of the grazing season, but even when physical factors are controlled, farmer characteristics, such as education, also affect the grazing season length. The results of a panel data analysis show that significant cost reductions can be achieved by extending …

2012 Dairy Digest, 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.

The Effects Of Slow Release Urea On Nitrogen Metabolism In Cattle, Vaughn B. Holder

Theses and Dissertations--Animal and Food Sciences

The objective of this research was to investigate the effects of slow release urea on N metabolism in cattle. The ruminal behavior of Optigen®II and the effect of basal diet on the in situ degradability of urea and Optigen®II were evaluated. The effect of slow release urea and its interaction with degradable intake protein (DIP) level in the diet on N retention and excretion was evaluated utilizing 8 Holstein steers in a 4 x 4 Latin square experiment. In addition, the effect of slow release urea and DIP level on ruminal and systemic urea kinetics was evaluated using stable isotope …

Mammary Cell Activity And Turnover In Dairy Cows Treated With The Prolactin-Release Inhibitor Quinagolide And Milked Once Daily, M. Boutinaud, V. Lollivier, L. Finot, R. M. Bruckmaier, P. Lacasse

Physiology Collection

To assess the regulation of mammary cell activity, survival, and proliferation by prolactin (PRL), 5 Holstein cows in early lactation received daily i.m. injections of 1 mg of quinagolide, a suppressor of PRL release, for 9 wk, whereas 4 control cows received the vehicle (water) only. During the last week of treatment, one udder half was milked once a day (1×) and the other twice a day (2×). Mammary biopsies were harvested 1 wk before and 4 and 8 wk after the start of quinagolide treatment. The quinagolide injections reduced milk yield and resulted in lower levels of κ-casein and …

Sodium Salicylate During The First 7 Days Of Lactation Affects The Entire Lactation (2012), Jaymelynn K. Farney, Laman Mamedova, J. Ernest Minton, J. F. Coetzee

Kansas Agricultural Experiment Station Research Reports

Inflammation has been proposed as a contributor to metabolic disorders in transition dairy cows. The purpose of this experiment was to determine if a non-steroidal anti-inflammatory drug, sodium salicylate (SS), benefits transition cows. At calving, 78 cows [primiparous (1P) n = 39; 2nd lactation (2P) n = 24; ≥3 lactations (3P) n = 15] were assigned alternately to either a control or SS treatment for 7 days and production responses were evaluated through the entire lactation. Treatment was administered via individual water bowls, delivering a mean of 123 ± 5.5 (mean ± standard deviation) grams salicylate per day during the …

Reinsemination Intervals After Timed Artificial Insemination Or Estrus-Detected Inseminations (2012), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The objective was to quantify the reinsemination intervals of lactating dairy cows that were either inseminated at estrus or received a timed AI (TAI) at first service. Cows in Experiment 1 were enrolled in a TAI program before first AI after calving. Cows detected in estrus after 50 days in milk (DIM) were inseminated, whereas the remainder continued in the TAI program and were inseminated as scheduled. Cows in Experiment 2 also were enrolled in a TAI program and were inseminated accordingly at first service after calving. On day 7 after TAI, cows were assigned randomly to receive either saline …

Meta-Analysis Of The Effects Of Dietary Sugar On Intake And Productivity Of Dairy Cattle (2012), C. F. Vargas, Christopher D. Reinhardt, J. L. Firkins, Barry J. Bradford

Kansas Agricultural Experiment Station Research Reports

A meta-analysis was performed to determine the possible effects of dietary sugar on feed intake and milk production in lactating dairy cattle. The database used in this analysis included 18 treatment comparisons frozm 10 studies reported from 1985 through 2011. Treatment comparisons were used only if: (1) either sucrose (9 comparisons) or molasses (9 comparisons) replaced corn grain without adding fat; and (2) sugar added by treatment ranged from 2 to 5% of dry matter. First, responses to sucrose and molasses were compared to assess whether these sugar sources could be considered together. Statistical analysis provided no evidence for different …

Evaluation Of Yogurt With Enhanced Cysteine Content (2012), Soumya Bala, Karen A. Schmidt

Kansas Agricultural Experiment Station Research Reports

Amino acids are the building blocks of protein and assist with metabolism in the body. In the human body, the amino acid cysteine can be synthesized from methionine by the enzyme Î¥-cystathionase. Because certain human subpopulations such as those prone to cataracts have decreased Î¥-cystathionase activity, dietary cysteine may be beneficial. Nutritionally, yogurt mix is one of the best dairy food sources of methionine and cysteine, but the heat treatment used in manufacturing yogurt decreases the dietary availability of cysteine. Last year, it was shown that supplementing yogurt mixes with whey protein isolate (WPI) (>90% protein) and processing yogurt …

Proyecto De Factibilidad Para El Montaje De Un Centro De Acopio De Leche En El Municipio De Sotaquirá, Boyacá, Ximena Yisseth Cuevas Sierra, Jose Alejandro Osorio Cardona

Zootecnia

La finalidad del trabajo es realizar un estudio de factibilidad para observar la viabilidad de establecer un centro de acopio de leche en el municipio de Sotaquirá, en la vereda Gaunza, departamento de Boyacá. Para la realización de este trabajo se reconoció el entorno social, económico, político y ambiental, lo que estableció la viabilidad del proyecto con este punto geográfico, al considerar que buena parte de su economía se basa en la ganadería, lo que asegura la disponibilidad de la materia prima, al igual que se establecieron posibles vías de acceso y mano de obra disponible. Posteriormente se realizó un …

Using Preconditioning Programs As A Management Tool For Value Added Calves, Jessica Crozier, Kerry A. Rood

All Current Publications

This publication discusses using preconditioning programs as a management tool for value added calves.

Hot Topic: New Research Highlights The Need For Holistic Thinking About Transition Cows (2012), Barry J. Bradford

Kansas Agricultural Experiment Station Research Reports

In the past, efforts to improve the transition to lactation have focused largely on preventing infections and maximizing energy intake in transition cows, and these issues have generally been treated independently. New models, however, are emerging to explain the development of numerous transition disorders. A combination of insults, including social stress, negative energy balance, heat stress, endotoxin exposure, and oxidative stress may promote inflammation, suppress feed intake, and impair both metabolic and immune function during the transition period. These models suggest that transition cow management must be viewed holistically, because the cow's environment, nutrition, and immune function interact in many …

Viability Of Lactic Acid Bacteria And Sensory Evaluation In Cinnamomum Verum And Allium Sativum-Bio-Yogurts Made From Camel And Cow Milk, Ahmad Salihin Hj Baba, Shori A. B.

Ahmad Salihin Hj Baba

The present study investigate the effect of herbal water extract prepared from Allium sativum and Cinnamomum verum on the viability of lactic acid bacteria (Lactobacillus spp and Streptococcus thermophilus) in cow- and camel-milk yogurts during 21 day refrigerated storage. The organoleptic properties of fresh-yogurts were evaluated. Lactobacillus spp count for fresh cow milk-yogurts (0 day) in both present and absent of C. verum and A. sativum was ranged from 1.4×0 6 to 2.1×10 6 cfu/mL. These values were not significantly changed throughout the 21 days of refrigerated storage. Lactobacillusspp count in fresh plain camel milk- yogurt was 13.2×10 6 cfu/mL …