Dairy Science Commons^™

Is There An Economic Advantage To Planting Diverse Summer Annual Forage Mixtures?, Kelly Mercier, Chris Teutsch, Ray Smith, Kenny Burdine, Edwin Ritchey, Eric Vanzant

The Journal of Extension

This study examined economic implications of planting summer annual mixtures of grasses, legumes, and forbs at varying nitrogen rates. No differences in yield occurred between the three mixtures, indicating that mixtures with lowest seed cost will be most economical. Applying N resulted in yield increases of 12.26 lb DM per lb N applied. Although yield responses to N were positive, sensitivity analyses showed that applying N resulted in positive net returns only when hay prices were high and N prices were low. When utilization rates are accounted for, enterprise budgets determined grazing to be 18% cheaper to implement than haying.

Comparison Of Maize Hybrids For Production Of Quality Fodder And Silage In Faisalabad, Punjab, Pakistan, Ali Hamed, Muhammad Shahid Ibni Zamir, Asif Tanveer, Muhammad Yaseen

Journal of Bioresource Management

Fodder crops have to compete with those of field crops, and the majority of farmers are smallholders in the circumstances of Pakistan. Therefore, this study was planned to search for the best maize hybrid which would serve dual purposes, i.e. for grain production as well as its later usage as fodder and silage. So, seven maize hybrids most commonly grown in the vicinity were selected and compared for their forage production. Maize hybrids were sown on ridges followed by all cultural operations as carried out by farmers. At harvest, plant morphological parameters were measured before ensiling the whole maize plant. …

Corn (Zea Mays L.) Production In Living Mulch Systems, Grazing Potential, And Economic Viability, Marcia Peireira Quinby

Doctoral Dissertations

Living mulch (LM) is a practice in which forages are grown simultaneously with the main crop, serving as a living cover throughout the growing season. The LM systems were developed to alleviate concerns of soil depletion and finding ways to reduce tillage negative effects on soil productivity. In addition, when legumes are use can decrease the reliance on N fertilizer. The use of corn in LM have been previously studied due to the crop being a large commodity in the U.S.; In addition, the ability to graze the LM after corn production can increase the land use efficiency. To determine …

Primary Industries Development Research Highlights 2021, Department Of Primary Industries And Regional Development, Tim Scanlon

Books & book chapters

The Primary Industries Development Research Highlights 2021 showcases the breadth and depth of the Department of Primary Industries and Regional Development’s research and development activities over the past several years.

Stories featured in Research Highlights 2021 stem from about 60 (of 140) current and recently-completed projects undertaken by the Department of Primary Industries and Regional Development’s (DPIRD) 1100 scientists, technical experts and economists throughout the State.

Explore our Research Highlights 2021.

The publication demonstrates the innovative and applicable research that DPIRD and its collaborators and investment partners deliver to Western Australia.

Download the Research Highlights 2021 here. Alternatively, …

Incorporation Of Summer Annual Mixtures Into Grazing Systems In Kentucky, Kelly Marie Mercier

Theses and Dissertations--Plant and Soil Sciences

Utilizing summer annual grass-legume forage mixtures has the potential to improve forage yield and nutritive characteristics, and/or animal performance during times when cool-season pasture growth is limited by high temperatures. Legumes can utilize atmospheric nitrogen, which can increase crude protein and forage digestibility in mixtures. As nitrogen application generally improves both the yield and nutritive characteristics of summer annual forages, but can have a negative effect on legume competitiveness, nitrogen fertilizer recommendations for legume-containing summer annual mixtures are not well established.

Two experiments were conducted to determine the feasibility of utilizing summer annual mixtures in Kentucky, USA. The first experiment …

Association Of Horizontal Silo Pad Type, Elevation And Core Depth With Indicators Of Silo Ramp Hygiene, Forage Quality, And Digestibility, W. E. Brown, N. M. Bello, M. J. Brouk

Kansas Agricultural Experiment Station Research Reports

Horizontal silo piles without walls are constructed using packing equipment to adequately pack the forage for air exclusion. During packing, the equipment uses a ramp of forage to access the top of the pile, potentially introducing soil into the forage when the base of the silo is made of soil. Soil contains microorganisms which may cause malfermentation and pose health risks to livestock. The objective of this study was to assess the association of horizontal silo pad type, elevation, and core depth with indicators related to silage hygiene and nutrient quality. We hypothesized that ash and mineral content, microbiological profile, …

Effects Of Pre-Cutting Round Alfalfa Hay Bales On Forage Quality And Processing Time, W. E. Brown, E. Harms, J Heimsoth, J. Mcginnis, C. I. Vahl, B. J. Bradford, M. J. Brouk

Kansas Agricultural Experiment Station Research Reports

Round hay balers with knives that cut the hay as it enters the baling chamber reduce the particle size upon baling, and eliminate the need for a tub grinder. The objective of this study was to evaluate the effects of a round hay baler with knives on forage quality of alfalfa hay at baling and after storage, and the effects of the processing method on nutrient composition and particle size distribution. Alfalfa hay was baled (560 M Megawide HC2, John Deere, Moline, IL) with knives every 4 inches (CUT; theo­retical length of cut) or without knives (NORM). At baling and …

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2017, Leah English, Jennie Popp, Wayne Miller

Research Reports and Research Bulletins

Agriculture and associated agricultural activities are major contributors to the Arkansas economy. Agriculture is defined as the sum of agricultural production and processing activities, unless otherwise specified, and includes crop and animal production and processing, agricultural support industries, forestry and forest products, and textile goods. Agriculture contributes to the economy through direct agricultural production and value-added processing, and also leads to economic activity in other parts of the economy. This report is the eleventh in a series of reports examining agriculture’s economic contribution to the Arkansas economy. The total economic contribution of agriculture (direct, indirect, and induced effects) on value …

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender

Student Theses 2015-Present

This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim …

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.

Evaluating The Impact Of Two Contrasting Tillage Practices On Soil Properties In Central Kentucky, Emily Cook

Posters-at-the-Capitol

Farming practices such as no tillage and plowing can institute change on soil physical and chemical characteristics. In this research, the effects of long-term conventional and no-tillage systems on the selected soil properties were determined in a continuous corn system on a farm with Maury silt loam soil. These samples were taken from University of Kentucky's Research Farm (Spindletop Farm). The field used was tilled in 1969 from bluegrass sod and the first time research was conduced was in 1970. Each plot is 20 ft. by 40 ft. and for many years each plot was split with winter cover crop …

Development Of A Berry Processing Score For Sorghum Silage And Assessment Of Processing Effects On Sorghum Silage Starch Digestibility, J. R. Johnson, J. P. Goeser, Michael Brouk

Kansas Agricultural Experiment Station Research Reports

The objectives of this study were to develop a berry processing score (BPS) for sorghum silage, similar to the kernel processing score currently used for corn silage, and to evaluate the effects of processing on starch digestibility. Sorghum silage samples were collected from commercial farms in Kansas and randomly assigned to 1 of 4 processing levels differing in roll gap spacing: unprocessed (UNP), 1.5 (1.5P), 1.0 (1.0P), or 0.5 (0.5P) mm. Differences in BPS and starch digestibility were found–as the roll gap decreased, both BPS and starch digestibility increased. Thus, by processing sorghum silage during harvest and measuring the extent …

Productivity Of A Triticale And Crimson Clover Winter Cover Crop For Dairies, K. Olagaray, C. Takiya, M. Scheffel, T. Brown, J. S. Stevenson, D. H. Min, B. Bradford

Kansas Agricultural Experiment Station Research Reports

The potential for a winter cover crop to align with agronomic objectives and to support milk production was evaluated at the Kansas State University Dairy Teaching and Research Center, Manhattan, KS. August planting of a triticale and crimson clover blend following corn silage harvest resulted in production of more than 3.5 tons of dry matter prior to subsequent corn planting. After ensiling, the impact of triticale/crimson clover silage (TCS) on milk production was evaluated in 48 mid- to late-lactation Holstein cows. Cows were blocked by parity (1 and 2+) and milk production, then randomly assigned within block to treatment sequence …

Development Of A Berry Processing Score For Sorghum Silage, J. R. Johnson, J. P. Goeser, Michael Brouk

Kansas Agricultural Experiment Station Research Reports

This study was done in an effort to develop a berry processing score (BPS) for sorghum silage, similar to the kernel processing score (KPS) currently used for corn silage. Sorghum silage samples were collected from 3 dairies in Kansas and processed in the Grain Science & Industry grain processing laboratory at Kansas State University using one of four different roll gap settings to give four differently processed samples: unprocessed, 1.5, 1.0, or 0.5 mm. After drying, samples were placed into a Ro-Tap particle separation machine for 10 minutes until the whole sample was separated. Whole samples, as well as separated …

Examining Vegetative Growth Of Cool-Season Forage Grasses For Dairy Cattle Grazing Preference, Eric D. Billman

Theses and Dissertations--Plant and Soil Sciences

The objective of this study was to determine dairy cattle preference amongst four species of cool-season forage grasses: eight orchardgrasses (Dactylis glomerata L.), five tall fescues [Schedonorus arundinaceus (Schreb.) Dumort.], five perennial ryegrasses (Lolium perenne L.), and six festuloliums [xFestulolium braunii (K. Richt.) A. Camus.]; 24 cultivars in total. Each grazing trial utilized four Holstein-Friesian heifers over six hours. Maturity differences were eliminated by having animals graze only vegetative material. After six grazing trials (three each in 2014 and 2015), consistent results in animal preference were not found; three of the six trials did show preference …

Effects Of Covering System, Sealing Time, And Packing On Fermentation, Nutritional Quality, And Organic Matter Loss Of Corn Silage In A Drive-Over Pile, Katie Rose Nutcher

Dairy Science

This project involved an experiment conducted using a 550-ton capacity drive-over pile of whole-plant corn silage. The main effects compared were: packing the final forage surface with a loader or crawler, delay or immediate sealing, and covering with standard plastic or an oxygen barrier film.

Numerous studies have shown that the absence of oxygen in silage stored in a bunker silo or pile is crucial for proper fermentation and to ensure the highest quality silage at feed out. When oxygen is allowed to permeate through the covering material, it leads to visible spoilage. This trial showed that the oxygen barrier …

Intsormil- Centa’S New Bmr Sorghum Varieties Create A Surge In Dairy Production, René Clará Valencia

INTSORMIL Scientific Publications

Scientists from the INTSORMIL-CENTA project based at the National Center for Agricultural Technology and Forestry (CENTA) of El Salvador have worked for five years to develop varieties of sorghum for grain and forage that are highly nutritious to cattle. Using the gene bmr-12, received from Dr. Gebisa Ejeta of Purdue University, they combined commercial varieties CENTA S-2, S-3 CENTA, CENTA RCV and VG 146 and were able to form new varieties containing this same gene. The first generation created 76 new varieties.

Returns To The Introduction Of New Sorghum Cultivars Into The Dairy Industry Of El Salvador, Alexis Homero Villacís Aveiga

INTSORMIL Scientific Publications

The returns to the introduction of new photo-insensitive sorghum varieties into the dairy industry were analyzed to determine changes in the welfare of consumers, processors, producers and the society. The economic surplus method was used along with a survey data of a stratified sample of 150 farms conducted in 2011 in El Salvador. Results indicate that there are large returns per dollar spent and substantial benefits to consumers, processors and producers. Results also show that the adoption of these new technologies represents advantages in production costs of milk in each farm size. These cost savings per bottle are very small …

Returns To The Introduction Of New Sorghum Cultivars Into The Dairy Industry Of El Salvador, Alexis H. Villacís, John H. Sanders

INTSORMIL Presentations

The driver of agricultural development is the introduction of new technology. Sensitive sorghums have long been a critical component of hillside Central American agriculture providing a reserve or insurance policy when the principal staple of maize falters. The insensitive sorghums have been more recently introduced since the ‘70s for planting in the valleys in the second season. In the last thirty years the introduction of new insensitive cultivars has accelerated initially for poultry and in the previous two decades for dairy production. This growth has been facilitated by strategic investments in research by CENTA and the Ministry of Agriculture.

As …

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 …

Letter From The Dean, Lalit Verma

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Extraction Of Lipids From Buttermilk Using Supercritical Carbon Dioxide, Harit K. Vyas, Johanna C. Astaire, Rafael Jiménez-Flores

Rafael Jiménez-Flores

Abstract of paper presented at the 2002 Joint Annual Meeting of the American Dairy Science Association & the American Society of Animal Science.

Disulfide Bonding Patterns Between Β-Lactoglobulin And Κ-Casein In A Heated And Spray-Dried Milk-Model, Annie Bienvenue, C. S. Norris, Michael J. Boland, Lawrence K. Creamer, Rafael Jiménez-Flores

Rafael Jiménez-Flores

Abstract of paper presented at the 2002 Joint Annual Meeting of the American Dairy Science Association & the American Society of Animal Science.

Efecto De Los Microorganismos Eficientes Sobre La Calidad Del Ensilaje De Maíz Y Su Utilización En Lechería Tropical, María Antonia Londoño Gutiérrez

Zootecnia

Este trabajo se realizó con objetivo de analizar el efecto de los microorganismos eficientes EM sobre el ensilaje de maíz como suplemento en lechería tropical. Este trabajo se desarrolló en dos fases, laboratorio con microsilos y de campo. Para analizar los cambios composicionales del ensilaje se utilizó la metodología de micrósilos y se evaluaron los cambios en cuanto a proteína cruda, proteína soluble, nitrógeno no proteico, fibra en detergente ácida y fibra en detergente neutra. En la fase de campo se utilizaron nueve vacas guzolando, en un sistema de pastoreo semi-intensivo con pasto Estrella (Cynodon nlemfluensis), que se dividieron en …

Ua66/5/2 Newsletter, Wku Department Of Agriculture

WKU Archives Records

Newsletter regarding programs, events, students and alumni of the WKU Agriculture department.

Producción Y Calidad De Leche En Vacas Holstein En Dos Arreglos Silvopastoriles De Acacia Decurrens Y Alnus Acuminata Asociadas Con Pasto Kikuyo, Pennisetum Clandestinum, Eugenio Gualdron Calderón, Cesar Eduardo Padilla Charry

Zootecnia

La investigación se llevó a cabo en la finca Villa Nataly, Vereda Olarte, localidad de Usme. Según clasificación Holdridge es Bosque muy húmedo montano bajo; precipitaciones de 800 a 1000 mm, temperaturas entre 6 y 12 C°. Los suelos predominantes en la finca son de textura franca, buen drenaje y notable susceptibilidad a la erosión. Los tratamientos evaluados fueron dos arreglos silvopastoriles uno conformado por Alnus acuminata asociado con Pennisetum clandestinum denominado sistema silvopastoril de sombra (SSPS), y otro arreglo conformado por Acacia decurrens + A. acuminata asociados con P. clandestinum, denominado sistema silvopastoril de sombra y ramoneo (SSPSR), comparados …

Ua66/5 Newsletter, Vol. I, Issue 1, Wku Agriculture

WKU Archives Records

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.

Utilización De Monensina Sódica, En Combinación Con Melaza, Urea Y Azufre Para Estimular Ganancia De Peso En Novillos En Etapa De Pre Ceba, Pedro Alexánder Fuentes Alarcón

Zootecnia

Esta investigación se realizó con el fin de evaluar la ganancia de peso en novillos comerciales tipo Pardo por Cebú, en praderas de pasto Estrella (Cynodon nlemfuensis) y kikuyina (Bothriochloa pertusa), suplementado con monensina sódica (Streptomyces cannamonensis) combinada con sal mineralizada, además de úrea y azufre mezclado con melaza. Conjuntamente se evaluó el consumo por animal de cada uno de los aditivos incluidos en la dieta y la relación costo beneficio de cada suplementación. Se conformaron 4 grupos de 20 novillos cada uno, elegidos completamente al azar; grupo experimental 1: mezcla melaza - úrea – azufre 555 gr/animal/día (melaza 90%, …

Ua66/5 Newsletter, Wku Agriculture

WKU Archives Records

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.

Re-Integrating Crops And Livestock In Maine: An Economic Analysis Of The Potential For And Profitability Of Integrated Agricultural Production, Aaron K. Hoshide

Electronic Theses and Dissertations

This thesis examines the profitability of and sustainability indicators for potato and dairy farms in Maine integrating crops and livestock in two different ways. The first is inter-farm coupling, where two or more specialized producers are close enough to exchange manure applications for crops used as livestock feed. Land base is shared between farmers. The second is where farms are on-farm integrated. Here crops and livestock are raised on the same farm and manure is applied to cash crops and livestock feed crops. Face-to-face interviews with Maine producers were used to construct integrated and non-integrated representative budgets. Assuming …