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Articles 1 - 30 of 66
Full-Text Articles in Dairy Science
Kluyveromyces Marxianus Prepared As A Ready To Use Supplemental Food (Rusf), Zachary Christman
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.
Students’ Knowledge Of And Attitudes Toward Dairy Production: A Survey Methodology Report, Heather Akin, Babatope Akinyemi, Julia Mcquillan, Tami Brown-Brandl
Students’ Knowledge Of And Attitudes Toward Dairy Production: A Survey Methodology Report, Heather Akin, Babatope Akinyemi, Julia Mcquillan, Tami Brown-Brandl
Department of Agricultural Leadership, Education, and Communication: Faculty Publications
This report presents findings from a pilot survey conducted among undergraduate and graduate students (N = 410) at the University of Nebraska-Lincoln about students’ perspectives on technology usage, consumption, and sustainability in dairy production systems. An interdisciplinary research team developed the survey instrument and report. The main purpose of this pilot study was to create and administer survey items to support further research on experiential education and outreach opportunities related to robotics in small-scale dairy production and rural economic development. Descriptive findings indicated that most students had some familiarity with dairy production and the nutritional aspects of dairy products …
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 Use Of Grape By-Products As A Nutrient Rich Cattle Feed, Zachary Christman
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.
Symptoms And Causes Of Foamy Bloat In Cattle, Zachary Christman
Symptoms And Causes Of Foamy Bloat In Cattle, Zachary Christman
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
The bovine stomach normally produces gases such as ammonia, carbon dioxide and methane. However when these gases become trapped in the bovine stomach because of a thick, frothy or foamy liquid it is called bloat. Cattle bloat is a very old condition and goes by many names but is primarily trapped gas within the bovine stomach. Readily digested feedstuff such as highly processed grain diets or an overabundance of fresh immature alfalfa often leads to a vast amount of small particles and carbohydrates in the rumen; this is the major cause of foamy bloat. Severe bloat causes death by suffocation …
Growing Yeast For Livestock, Zachary Christman
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 …
Nebraska Bqa: Antibiotic Use Guidelines, Rob Eirich
Nebraska Bqa: Antibiotic Use Guidelines, Rob Eirich
Nebraska Beef Quality Assurance Program
Cattlemen have demonstrated a commitment to animal health through vaccination programs developed carefully in cooperation with their veterinarian. When animals must be treated with an antibiotic after disease diagnosis, producers need to follow important antibiotic use guidelines established through the National Beef Quality Assurance (BQA) program.
Nebraska Bqa: Effective Cattle Handling, Rob Eirich
Nebraska Bqa: Effective Cattle Handling, Rob Eirich
Nebraska Beef Quality Assurance Program
Cattlemen know the importance of proper cattle handling and its effect on animal health and performance. Beef Quality Assurance has been implementing effective cattle handling (low-stress) into educational programs since its establishment in the 1980s.
Handling Cattle Through High Heat Humidity Indexes, Rob Eirich
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.
Nebraska Bqa: Handling Compromised Animals, Rob Eirich
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
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
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: 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.
Nebraska Bqa: Herd Health Plan/Protocol, Rob Eirich
Nebraska Bqa: Herd Health Plan/Protocol, Rob Eirich
Nebraska Beef Quality Assurance Program
Nebraska cattlemen have demonstrated a commitment to the integrity of today's beef products by implementing sound cattle management practices. Consumers are looking for beef raised in a healthy and safe environment. An appropriate Herd Health Plan/Protocol ensures that all cattle are raised in the best health.
Nebraska Bqa: Veterinarian Client Patient Relationship, Rob Eirich
Nebraska Bqa: Veterinarian Client Patient Relationship, Rob Eirich
Nebraska Beef Quality Assurance Program
Beef producers are committed producing a high quality, safe and wholesome beef product. A commitment to herd health and veterinary input is critical to achieving this goal. To this end, developing a veterinarian client-patient relationship (VCPR) is important and will benefit all aspects of cattle performance. Veterinarians' working understanding of cattle disease and parasites can help cattle raisers develop targeted vaccination and treatment programs.
Rentibilidad De La Introducción De Nuevas Variedades De Sorgo Del Centa En La Industria Lechera De El Salvador: Ponencia Presentada En La Conferencia Del Centa: "Cambio Climático E Impacto De Los Sorgos Forrajeros" Diciembre 7, 2011, San Salvador, El Salvador, Alexis H. Villacís, John H. Sanders
Rentibilidad De La Introducción De Nuevas Variedades De Sorgo Del Centa En La Industria Lechera De El Salvador: Ponencia Presentada En La Conferencia Del Centa: "Cambio Climático E Impacto De Los Sorgos Forrajeros" Diciembre 7, 2011, San Salvador, El Salvador, Alexis H. Villacís, John H. Sanders
INTSORMIL Scientific Publications
El propulsor del desarrollo agrlcola es la introducción de nuevas tecnologlas. Sorgos fotosensitivos' han sido un componente crítico en la agricultura de las laderas centroamericanas, ofreciendo una reserva o póliza de seguro cuando el alimento básico principal de maiz tambalea. Los sorgos foto-insensitivos han sido introducidos recientemente desde los anos 70 para la siembra en postrera en los valles. En los últimos treinta anos, la introducción de nuevas variedades insensitivas se ha acelerado, en un inicio para las aves de corral y en las dos décadas anteriores para la producción lechera. Este crecimiento ha sido posible gracias a las inversiones …
Caring For Compromised Cattle: Assessing Animals At Risk
Caring For Compromised Cattle: Assessing Animals At Risk
Nebraska Beef Quality Assurance Program
Cattlemen have long recognized the need to properly care for their livestock. Sound animal husbandry practices – based on research and decades of practical experience – are known to impact the well-being of cattle, individual animal health and herd productivity. There is no doubt that producers work hard to ensure that their cattle are properly cared for throughout all stages of production. Unfortunately, it’s a fact of raising cattle that some animals will become injured to the extent that they are unable to stand or walk without assistance.
Assessor’S Guide To A Beef Quality Assurance Cow-Calf Assessment
Assessor’S Guide To A Beef Quality Assurance Cow-Calf Assessment
Nebraska Beef Quality Assurance Program
The BQA Cow-Calf Assessment is an on-site educational tool that allows for assessing and benchmarking key indicators of animal care and well-being as well as operational conditions. The Cow-Calf Assessment focuses on three main areas – Animals, Records and Best Management Practices (BMP), and Facilities and Equipment.
Dairy Animal Care: Quality Assurance
Dairy Animal Care: Quality Assurance
Nebraska Beef Quality Assurance Program
Dairy producers are encouraged to participate in the voluntary Dairy Animal Care and Quality Assurance (DACQA) Certification program. The purpose of this program is to enhance and demonstrate quality animal care practices, which assure food safety, quality and value as well as enhance consumer confidence in the milk and beef products that are harvested from cattle on America’s dairy farms.
Feedyard Assessment: Assessor's Guide
Feedyard Assessment: Assessor's Guide
Nebraska Beef Quality Assurance Program
The BQA Feedyard Assessment is an on-site educational tool that allows for assessing and benchmarking key indicators of animal care and well-being as well as feedyard conditions. The Feedyard Assessment focuses on three main areas – Animals, Records and Best Management Practices (BMP), and Facilities and Equipment.
Stocker And Backgrounding Self Assessment
Stocker And Backgrounding Self Assessment
Nebraska Beef Quality Assurance Program
Cattlemen in stocker operations have long recognized the need to properly care for livestock. Sound animal husbandry practices, based on decades of practical experience and research, are known to impact the well-being of stocker cattle, individual animal health and herd productivity. Stocker cattle operations are located in many diverse environments and geographic locations in the United States. A universal set of production practices can not be recommended for all stocker cattle producers in light of the divergent climate and geographic variations of the stocker and backgrounding segment. Personal experience, training and professional judgment can serve as a valuable resource for …
The Cattle Industry's Guidelines For The Care And Handling Of Cattle
The Cattle Industry's Guidelines For The Care And Handling Of Cattle
Nebraska Beef Quality Assurance Program
Cattlemen have long recognized the need to properly care for livestock. Sound animal husbandry practices, based on decades of practical experience and research, are known to impact the wellbeing of cattle, individual animal health and herd productivity. Cattle are produced in very diverse environments and geographic locations in the United States. There is not one specific set of production practices that can be recommended for all cattle producers. Personal experience, training and professional judgment can serve as a valuable resource for providing proper animal care.
Motion And Time Studies Of Milking Parlors And Routines, R. D. Appleman, C. F. Micke
Motion And Time Studies Of Milking Parlors And Routines, R. D. Appleman, C. F. Micke
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
This study defines and describes the parameters of milking in both the elevated side-opening and herringbone style milking parlor. Included in this "motion and time" study are measurements of differences in milking routines or techniques, as well as the probable contribution of certain mechanical aids, including both crowd gates and group-washing systems. Milker (men) differences are also identified. Detailed measurements of time requirements for specific milking activities or chores are expensive to obtain. Very limited data are found in the scientific literature. This bulletin is published to supply resource data which may be used in planning milking parlors or as …
Calf Diarrhea (Scours): Reproduced With A Virus From A Field Outbreak, C. A. Mebus, N. R. Underdahl, M. B. Rhodes, M. J. Twiehaus
Calf Diarrhea (Scours): Reproduced With A Virus From A Field Outbreak, C. A. Mebus, N. R. Underdahl, M. B. Rhodes, M. J. Twiehaus
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Neonatal calf diarrhea typical of that seen in field cases was produced in colostrum-deprived calves by inoculating either feces or bacteria-free filtrates via the duodenum, orally, or by a spray (aerosol). Three calves, kept free of E. coli, developed severe diarrhea following inoculation with a bacteria-free filtrate. Intense fluorescence in the epithelium of sections of small intestine from two experimental calves was observed following staining with ftuorescein-labeled gamma globulin produced with viral antigen prepared from the feces of two experimental diarrhetic E. coli-free calves. Fluorescing cells were also present in the feces of experimental and field cases of neonatal …
Relationship Between Measures Of Semen Quality And Fertility In Bulls Mated Under Natural Conditions, J. N. Wiltbank, W. W. Rowden, J. E. Ingalls
Relationship Between Measures Of Semen Quality And Fertility In Bulls Mated Under Natural Conditions, J. N. Wiltbank, W. W. Rowden, J. E. Ingalls
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
An evaluation of the relationship between several measures of semen quality and fertility of bulls mated under natural conditions has been conducted over a three-year period. Semen was collected three different times with an electro-ejaculator from bulls used in the fertility tests. Collections were made at weekly intervals. Fertility was evaluated by mating bulls to heifers starting about three days after the last collection. Semen quality refers to the percent abnormals and the percent motility evaluated at the time of collection. Fertility was measured by the proportion of heifers that settled at natural service. Several multiple regression equations were calculated. …
A Histological Study Of The Postnatal Development Of The Bovine Testis, R. G. Fossland, A. B. Schultze
A Histological Study Of The Postnatal Development Of The Bovine Testis, R. G. Fossland, A. B. Schultze
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
A limited number of detailed studies on the development of the bovine testis from birth to sexual maturity have been reported. Further study of bovine testis development appears desirable to furnish additional observations and to note variations that may occur during the developmental process. Information on the process of spermatogenesis should furnish a basis for experimental work designed to promote increased spermatogenic activity in the postpubertal testis as well as for work directed toward promoting complete spermatogenesis at an earlier than usual age. This report is a study of the histological picture of the testes from 56 bulls varying from …
Relation Of Heart Girth To Weight In Holsteins And Jerseys, H. P. Davis, W. W. Swett, W. R. Harvey
Relation Of Heart Girth To Weight In Holsteins And Jerseys, H. P. Davis, W. W. Swett, W. R. Harvey
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Body weight is the one measurement most extensively used to evaluate growth, condition, and value for beef, and as a basis for calculating feed requirements for cattle. Weight can be determined readily by scales but unfortunately scales of a capacity adequate for weighing cattle are not always available. Thus there is a real need for a basis of estimating weight from some body measurement that can be obtained easily and at a minimum of cost and time. It is the aim of this study to utilize additional data now available to increase further the accuracy and reliability of estimating weight …
Growth Measurements Of Holstein, Ayrshire, Guernsey And Jersey Males, H. P. Davis, I. L. Hathaway
Growth Measurements Of Holstein, Ayrshire, Guernsey And Jersey Males, H. P. Davis, I. L. Hathaway
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
This study was based on monthly observations of all Holstein, Ayrshire, Guernsey and Jersey males born in the University of Nebraska dairy herd between 1922 and 1942. There were varying numbers of animals for the different months of age for the several breeds. Measurements of weight, slope of the rump, thickness of skin, and 13 linear measurements were taken monthly, from birth to disposal of the animals. The linear measurements were of heights at withers, hooks and rump; of lengths-diagonal (shoulder point to pinbone), body and rump; of widths at chest, hooks and pinbones; of depths at chest and barrel; …
Forty Years Of Dairy Cattle Breeding At The North Platte Experiment Station, Mogens Plum, Myron G.A. Rumery
Forty Years Of Dairy Cattle Breeding At The North Platte Experiment Station, Mogens Plum, Myron G.A. Rumery
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
In 1913 the Nebraska Legislature appropriated $17,500 to establish a Dairy Department at the North Platte Experiment Station. The department's herd was to be used in demonstrating management and breeding practices and as a source of breeding stock. Since the North Platte herd was started, research in the field of animal breeding has developed new concepts in many phases of dairy cattle breeding and selection. The purpose of the present study is to analyze the progress made under a system of dairy cattle breeding and selection carried out according to the principles that dominated 40 years ago. The results of …
Comparative Measurements Of Holstein, Ayrshire, Guernsey, And Jersey Females From Birth To Seven Years, H. P. Davis, I. L. Hathaway
Comparative Measurements Of Holstein, Ayrshire, Guernsey, And Jersey Females From Birth To Seven Years, H. P. Davis, I. L. Hathaway
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Body measurements are important for a proper understanding of how growth takes place in animals. Unfortunately, few growth data other than for weight have been published concerning dairy cattle. This is a report of measurements of females in the University of Nebraska dairy herd made as part of a long-time growth study. During the period 1922 to 1942 each animal born into the herd was weighed and measured at regular intervals. Presented here are the data for weight, height, length, width, depth, girth and hide thickness for females of the Holstein, Ayrshire, Guernsey, and Jersey breeds. The average body measurements …