Digital Commons Network^™

Effect Of Smooth Bromegrass Management On Grazing Cattle Dung Decomposition, Co2 Flux, And Soil Nutrient Movement, Bradley D. Schick

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Rapid nutrient cycling improves forage quality and livestock production in pastures. Interseeding legumes may be a strategy to enhance N cycling, but effects of dung excreted from cattle grazing pastures with legumes on dung decomposition rates and soil N cycling have not been studied. Our objective was to evaluate how dung excreted from cattle grazing legume-interseeded, N-fertilized, and unfertilized smooth bromegrass (Bromus inermis Leyss.) pastures affects dung chemical composition, dry matter decomposition, CO­₂ flux, and N availability in soil. Freshly deposited dung from yearling steers grazing legume-interseeded, N-fertilized, and unfertilized pastures was collected and placed as pats in …

Evaluations Of Biological Control Agents For The Management Of Soybean Cyst Nematode (Heterodera Glycines) In Soybean (Glycine Max L. Merr.), Kelsie M. Musil

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

The soybean cyst nematode (SCN, Heterodera glycines) is the most yield limiting pathogen of soybeans (Glycine max L. Merr.). Current management strategies of crop rotation and using resistant varieties are not completely effective and alternative management strategies are needed. Commercial seed treatments with biological agents are available to protect against yield loss from SCN, but have not been evaluated in Nebraska. Field studies were conducted in eight Nebraska locations (six infested with SCN and two non-infested) during 2014 and 2015 to evaluate seed treatment effects on soybean establishment, SCN population density, and yield. The seed treatments were CruiserMaxx® …

Engaging Educational Professionals Towards Training The Next Generation Within The Food, Agricultural, And Natural Resources Career Areas, Tyson Sorensen

Funded Research Records

No abstract provided.

Southern Utah Grass-Fed Beef Production Costs And Returns, 2016, Kynda Curtis, Trevor Knudsen

All Current Publications

This fact sheet is intended to be a guide used to make production decisions, determine potential returns, and prepare business and marketing pans.

Northern Utah Grass-Fed Beef Production Costs And Returns, 2016, Kynda Curtis, Trevor Knudsen

All Current Publications

This fact sheet is intended to be a guide used to make production decisions, determine potential returns, and prepare business and marketing plans.

The Regeneration Of Aspen Stands In Southern Utah, Justin Britton, Justin Derose, Karen Mock, Darren Mcavoy

All Current Publications

This fact sheet describes research conducted at Utah State University that identified factors to improve the success of regenerating aspen in southern Utah. Evaluating past silvicultural regeneration treatments indicated that the presence of pre-harvest advance reproduction, site preparation by broadcast burning, and decreasing browsing pressure could increase the quantity of aspen regeneration. The outcomes are generalized into an easy-to-use model, the Aspen Pyramid, to facilitate decision-making regarding regenerating aspen.

Identification Of 81 Pseudomonas Aeruginosa By Phylogenetic Analysis Of 16s Rrna Gene Sequence, Zeng Xiaocong, Zhou Lu, Su Miaozhen, Han Zhijie, Chen Danxia

Food and Machinery

81 Pseudomonas aeruginosa from Guangdong Provincial Institute of Food Inspection were identified by 16S rRNA sequence analysis. The DNA was isolated and the sequences of 16S rRNA gene were amplified by PCR with the bacterium universal primers, and then the PCR products were sequenced after 2% agarose gel electrophoresis. Moreover, the corrected sequences were aligned with Clustal X and the phylogenetic tree was constructed by MEGA5.1. Consequently, the identified results of the 81 strains confirmed their original identification before. On the phylogenetic tree, No. 24-3-QY strain formed a separate branch with No. 100-5-JM strain and No. 106-3-JM strain. No.2 8-1-DW …

Determination Of Vanillin And Ethyl-Vanillin In Milk Powder By Gas Chromatography-Mass Spectrometry, Zheng Xuan, Huang Jin, Lin Jie, Li Ju, Wei Xiaoqun, Cai Chun, Chen Yanfen, Feng Jieli, Guo Qingyuan

Food and Machinery

A method for determination of vanillin and ethyl-vanillin in milk powder was established by auto headspace solid-phase micro-extraction coupled with gas chromatography-mass spectrometry (GC—MS), and the influence factor were also studied, such as solid phase micro-extraction head, time and temperature of adsorption and desorption. As a result, the limits of determination (LOD) of vanillin and ethyl-vanillin were 0.5 mg/kg. The spiked recovery was between 90.0% and 100%, and the RSD ranged from 1.9%～4.1%(n＝6). This method could eliminate the interference of complicated matrix, conveniently, quickly and exactly, which was applicable for quick determination of vanillin and ethyl-vanillin content in milk powder.

On-Line Determination Of Emergency Pollution Of 3-Nitropropionic Acid In Drinking Water By Flow Injection Chemiluminescence, Zhang Xuhui, Tang Shuze, Deng Xiaoling, Zhu Yao, Wu Shizheng

Food and Machinery

On the basis of inhibition of chemiluminescence reaction of luminol and potassium permanganate in sodium hydroxide medium by 3-nitropropionic acid, a novel flow-injection chemiluminescence method for determination of 3-nitropropionic acid in drinking water was developed. A linear range for 3-nitropropionic acid determination was 1～150 mg/L. The detection limit of 3-nitropropionic acid was 0.28 mg/L and relative standard deviation (RSD) was 1.9%, with the recovery of 76.5%～93.8%. This online determination system showed a good accuracy and selectivity and has great potential application in rapid detection and alarm of emergency pollution of 3-nitropropionic acid in drinking water.

Effect Of Handling Cattle In Different Platform Slope On Beef Quality, Guo Bing, Wang Haifeng

Food and Machinery

In order to investigate the beef quality changes under handling cattle in different platform slope, Twenty simon tal beef cattle were randomly divided into 4 groups, the cow is respectively loading and unloading through (30,40,50 °) slope, then cattle are slaughtered. The pH value, flesh-colored, drip loss percentage, cooking loss percentage and shear force of postmortem beef were measured respectively. Results showed, with the increase of loading platform slope, pH values, L^* value and a^* value of postmortem beef significantly decreased (P<0.05), while shear force, b^* value, drip loss and cooking loss of postmortem beef significantly increased (P<0.05). This study indicated that beef quality was better through handling cattle in 30 degrees platform slope, and it should be reduced platform slope in cattle actual production thereby improve beef quality.

Development Of A Risk Assessment Framework To Predict Invasive Species Establishment For Multiple Taxonomic Groups And Vectors Of Introduction, Alisha D. Davidson, Abigail J. Fusaro, Rochelle A. Sturtevant, Edward S. Rutherford, Donna R. Kashian

Biological Sciences Faculty Research Publications

A thorough assessment of aquatic nonindigenous species’ risk facilitates successful monitoring and prevention activities. However, species- and vector-specific information is often limited and difficult to synthesize across a single risk framework. To address this need, we developed an assessment framework capable of estimating the potential for introduction, establishment, and impact by aquatic nonindigenous species from diverse spatial origins and taxonomic classification, in novel environments. Our model builds on previous approaches, while taking on a new perspective for evaluation across species, vectors and stages to overcome the limitations imposed by single species and single vector assessments. We applied this globally-relevant framework …

Nebline, November/December 2016

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Look Who’s Hatching — Preschoolers Explore Egg-Laying Animals

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

Extension Calendar

and other extension news and events

Psychological Stress Among Risks For Alzheimer's Disease, Maria C. Norton, Elizabeth B. Fauth

All Current Publications

This fact sheet defines stress, stressors and reaction to them, what stress does to our brain and body, and how stress effects can accumulate over time. It also includes tips on reducing the effects of stress on the brain.

Future Of The Land Grant Universities: Challenges And Opportunities, L. Washington Lyons

Professional Agricultural Workers Journal

No abstract provided.

Influence Of Porcine Plasma Supplementation On Gestating Sow Serum Igf-1 Concentration And Litter Weights, Mathew Vaughn, Crystal Serrano, Derris Burnett, Duane Davis, Jason Woodworth, John Gonzalez

Professional Agricultural Workers Journal

The objective of this pilot study was to determine the effect of dietary porcine plasma on circulating insulin-like growth factor 1 (IGF-1) concentrations in gestating sows and characteristics of their litters. Primiparous and multiparous sows were randomly allocated to two treatment groups of sows fed a basal diet or sows fed the basal diet plus 6 g of porcine plasma throughout gestation. On 4 periods during gestation and farrowing, blood was collected for IGF-1 analysis. After farrowing, gestation length, number born, birth weight, and total litter weight were recorded. There were no three-way or two-way interactions between treatments, day of …

Future Of The Land Grant Universities: Challenges And Opportunities, Dewayne L. Goldman

Professional Agricultural Workers Journal

No abstract provided.

Assessing Georgia Consumer Attitudes And Beliefs About Locally Or Regionally Produced Livestock And Products, Jannette R. Bartlett, Reem I. Omer, Akua Adu-Gyamfi, David Nii O. Tackie, Francisca A. Quarcoo, Bridget J. Perry

Professional Agricultural Workers Journal

Abstract

Interest in local and regional food production has been growing in the last few years. The study, therefore, assessed consumer attitudes and beliefs regarding local or regional livestock products. Data were obtained from a convenience sample of 384 participants from several counties of Georgia, and were analyzed by descriptive statistics, including chi-square tests. A majority of respondents thought using chemicals and additives in locally or regionally produced beef or goat meat was a serious or somewhat serious hazard. Consequently, many were willing to pay more for meat certified as locally or regionally produced. Furthermore, a majority agreed or strongly …

Assessing Florida Consumer Attitudes And Beliefs About Locally Or Regionally Produced Livestock And Products, Akua Adu-Gyamfi, Reem I. Omer, Jannette R. Bartlett, David Nii O. Tackie, Bridget J. Perry

Professional Agricultural Workers Journal

Abstract

In recent years, consumer interest in locally or regionally produced foods has been growing. This study analyzed consumer attitudes and beliefs on local or regional livestock products in Florida. Data were collected from a convenience sample of 404 participants from counties in Florida. They were assessed by descriptive statistics, including chi-square tests. Most participants believed using chemicals in locally or regionally produced beef or goat meat was at minimum a somewhat serious hazard. Thus, many were willing to pay more for meat certified as locally or regionally produced. Moreover, most agreed or strongly agreed with statements on meat attributes. …

Table Of Contents

Professional Agricultural Workers Journal

No abstract provided.

Sustainable Farm Practice: Study Of Total And Soluble Phosphorus In A Poultry Farm Equipped With Heavy Use Area Protection Pads, Dover, Delaware, Gulnihal Ozbay, Raju Khatiwada, Lathadevi K. Chintapenta, Eunice F. Handy, Stacy L. Smith

Professional Agricultural Workers Journal

Poultry litter contains high concentrations of water-soluble phosphorus and is readily transported in the farm run-off. This research aims to study the efficiency of heavy use area protection (HUAP) pads in decreasing litter spillage and phosphorous run-off at a Delaware poultry facility. Soil and water samples were analyzed for pH, total phosphorous, orthophosphate, and Mehlich III phosphorous throughout 2012. It has been hypothesized that the efficiency of HUAP pads would be reduced over time. Mehlich III phosphorus ranged from 22.82-200 mg/kg at site I, and 48.17 – 1179.6 mg/kg at site II, which were greater than the optimal soil concentrations. …

National Food Safety: Training, Education, Extension, Outreach, And Technical Assistance Program And The National Curriculum Stand For Food Protection Professionals, Gerald Wojtala

Professional Agricultural Workers Journal

No abstract provided.

Grazing With Goats Changed The Woodland Plant-Species Composition During Summer, Rishi Khatri, Uma Karki, Jerry Bettis, Yubaraj Karki

Professional Agricultural Workers Journal

Abstract

Woodland grazing is a common practice in the Southeast; however, information is limited on its effects on the woodland plant-species composition. The study objective was to determine the effect of summer grazing on woodland plant-species composition. Before- and after-grazing observations were taken at the ground, mid, and high levels in three plots (1-acre each) along the pre-established transects. Kiko wethers (29, 6-8 months old, 26.8±0.67 kg body weight) were allowed to graze the plots after before-grazing observations were taken. After-grazing observations were taken immediately after the goats were moved out from the plots. Grazing showed a significant effect on …

Design And Optimization Of Solid Fermentation Of Porcine Blood Powder Medium For Clostridium Butyricum, Qin Dongfang, Liu Aimin, Li Hao

Food and Machinery

For the purpose of joint production of hydrolysis of porcine blood and microbial ecology preparation of Clostridium butyricum, it was studied that the solid medium formulation suitable for the growth and reproduction of C. butyricum was made of porcine blood powder, and the fermentation products would be used in feed. The formulation of the solid medium formulation was designed and optimized by the mean of mixture design. Moreover, the mathematical regression model of three components of solid medium was established, and the various components and the interaction between them were also discussed. Furthermore, the results showed that the optimum formula …

Study On Titration Acidity Of Different Buffalo Raw Milk, Li Qing, Zhang Ruiyun, Li Wen, Mao Huaming, Zhang Anfu, Yin Yichang

Food and Machinery

Titration acidity of different buffalo raw milk samples were investigated in both in the same and different season according to GB 4789.18—2010 of “milk and dairy products inspection”. Among the samples, 228 of them were from major buffalo farming community in Yunnan Province, and 655 were from 26 farmers. The alcohol and alkali-doped were test, and the composition of the diet, feeding patterns and parity and lactation days of buffalo were also surveyed. The results showed that the titratable acidity of milk buffers with milk titers ranging from 10 to 13 °T was accounted for 85.7%, and 10.6% of the …

Effects Of Electron Beam Irradiation On The Degradation Of Aflatoxins And The Physicochemical Properties Of Corn, Luo Xiaohu, Qi Lijun, Fang Wenmiao, Pan Lihong, Wang Ren, Wang Li, Yu Xiaobin, Chen Zhengxing

Food and Machinery

To study the detoxification effect of electron beam irradiation on AFB₁ in corn, the effect of electron beam irradiation on the AFB₁-contaminated corn based on the doses of 0~50 kGy was studied. Physicochemical properties including fatty acid, color and viscosity of AFB₁-contaminted corn at different irradiated doses were also investigated. Results indicated that AFB₁ in corn significantly decreased with the irradiation dose (P<0.05). Moreover, physicochemical properties changed significantly when the irradiation dose was over 15 kGy, including the significant increase of fatty acid value (P<0.05) and the decrease of the viscosities (P<0.05). It was found that the whiteness didn’t change significantly (P>0.05), while the significantly decreased redness and yellowness (P<0.05) were observed.

Optimization Of Polysaccharide Extraction From Taro And Its Binding Capacities Of Lipid And Bile Salts In Vitro, Liu Ping, Qi Xingpu, Liu Jing, Yao Fang, Li Zhifang

Food and Machinery

The extraction technology of water–soluble polysaccharides in fresh taro was investigated in this paper. Using simulated conditions of human digestion in vitro, its fat-binding, cholesterol-binding and bile salts-binding capacities were studied in order to evaluate its potential hypocholesterolemic activity in vitro. The results showed that the highest extraction efficiency of taro polysaccharide could be obtain under the conditon of using solid-liquid ratio at 1∶6, reacting at 80 ℃ for 6 h with 85% ethanol, and the extraction ratio reaches (4.92±0.18)%. Taro water–soluble polysaccharides exhibited much higher binding capacities of both fat and bile acid, while much lower one of cholesterol, …

Characterization And Development Mechanism Of Apios Americana Tuber Starch, Hanyu Yangchen, Vikas Belamkar, Steven B. Cannon, Jay-Lin Jane

Department of Agronomy and Horticulture: Faculty Publications

Apios americana is a wild legume-bearing plant with edible tubers. Domestication of Apios is in progress because of the superior nutritional value and health benefits of the tuber. Objectives of this study were to: (1) characterize physicochemical properties of the Apios tuber starch; and (2) understand differences in starch structures and properties between the mother (seed) and child (progeny) tubers and the mechanism of starch development. Granules of the Apios tuber starch displayed ellipsoidal, rod, or kidney shape with diameter ranges of 1–30 m. The mother tuber starches displayed greater percentage crystallinity, larger gelatinization enthalpy-changes, longer branch-chain lengths of amylopectin, …

Montell, William Lynwood, 1931-2023 (Fa 961), Manuscripts & Folklife Archives

Folklife Archives Finding Aids

Finding aid only for Folklife Archives Project 961. Project titled: [Student Collections: Agricultural Implements] Includes survey sheets from student collections with brief descriptions of agricultural implements in Boyle County, Breathitt County, Hardin County, Lincoln County, and Taylor County in Kentucky. Sheets include a brief description, terms, and a photo of the implement.

Partners In Haiti, Maggie Del Ponte, Christa Cheatham, Montana Campbell, Rachel Stowers, Kelli Teskey

Purdue Journal of Service-Learning and International Engagement

In this article, a group of Purdue Students describes their service-learning experience in Haiti. They highlight what they learned about Haitian culture, the country’s need for agricultural and economic sustainability, and how Purdue students contribute to meet these needs. Maggie Del Ponte is a senior in biological engineering, Rachel Stowers is a sophomore in agricultural economics, Montana Campbell and Kelli Teskey are seniors in animal sciences, and Christa Cheatham is a junior in animal sciences.

Effect Of Cover Crops And Nitrogen Application Timing On Nutrient Loading And Concentration Through Subsurface Tile Drainage, Michael Douglas Ruffatti

Theses and Dissertations

It has been estimated that nitrate (NO3-N) leaching from artificially drained agricultural fields in the Upper Mississippi River Basin accounts for approximately 65% of nitrogen (N) delivered annually to the Gulf of Mexico. Therefore, the objectives of this study were to investigate the impact fertilizer application timing and cover crops (CC) adoption on the load and concentration of nutrients in subsurface drainage leachate. This experiment was conducted at the Illinois State University Nitrogen Management Field Station, in Lexington, IL. Treatments include a zero control (no N fertilizer and no cover crop), fall dominated N application (70% fall, 30% spring) with …