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Blend Feeding Broilers To Daily Nutrient Requirements, J.T. Pope

Proceedings of the Arkansas Nutrition Conference

Broiler producers and nutritionists have used phase feeding as a practical means to define broiler feeding programs. Each feed phase has discreet nutrient definitions intended to be fed for a defined number of days based on a feed mass delivered per broiler. A typical broiler feeding program would consist of three to five feed phases over the production cycle that intend to address the changing nutrient requirements as broilers age. Phase feeding programs are easily defined, practical to manage, and provide a predictable cost structure for broiler producers. Despite the practicality of phase feeding, there are inherent flaws that will …

Current Trends And Experiences From A Contract Research Organization Perspective, Dan Moore

Proceedings of the Arkansas Nutrition Conference

The primary goal of this presentation is to provide an update on the trends of research observed at a contract research organization (CRO) in recent years as it relates to species, study design type and products tested, as well as, challenge models used and products that have shown benefits in various study designs. The information in the presentation is based off of studies conducted from 2014-2024 at one CRO, Colorado Quality Research (CQR), and represents the experiences at CQR. Many of the parameters discussed will be from 2014-2019 and 2020-2024 to observe trends from over 5 years ago and more …

Importance Of A Rooster Feed In Broiler Breeder Production, Alex Corzo, Marcelo Silva

Proceedings of the Arkansas Nutrition Conference

Of all feed phases in poultry production, rooster feeding is arguably the least studied. During the rear phase, there is general agreement that male and female broiler breeders can be provided a common feed program, only differing on feed amounts provided, that results in growth targets reached for each sex. It is during the production phase that there is some disagreement on the best way to support the nutritional needs of the adult rooster. A considerable segment of the world does employ a rooster feed as a way to better support the nutritional needs of working males. Other poultry operations …

Vitamin Update And Sustainability, Edgar Orlando Oviedo-Rondón

Proceedings of the Arkansas Nutrition Conference

This presentation addressed the status of research on vitamin nutrition in poultry species and current recommended levels. The economic, environmental, and socio-political aspects of sustainability are addressed. Most of the information presented is described in detail in the book Optimum Vitamin Nutrition for More Sustainable Poultry Farming (Oviedo-Rondon et al., 2023). However, this presentation also used more recent publications and news of the latest events related to scientific recommendations and the worldwide vitamin market. The objective is to provide a brief overview of scientific findings to aid nutritionists in the decision-making process when selecting optimum levels for poultry nutrition. …

Every Day Feeding Of Broiler Breeder Pullets, David Brandt

Proceedings of the Arkansas Nutrition Conference

Broiler breeders are characterized by their fast growth and sensitivity to light stimuli. Unlike commercial layers, they have a lower egg production rate and are kept on the floor during rearing and laying periods. Fertile eggs are the primary objective, necessitating careful management of their egg-laying properties, while controlling their body weights. Unrestricted feeding leads to early laying with poor peak and persistency in egg production. Therefore, nutrient intake must be restricted to achieve target body weights at light stimulation (22 weeks). This involves both quantitative and qualitative feed restrictions. Quantitative feed restriction can lead to issues such as poor …

Integration Of Commercial Broiler Data Into A Broiler Growth Model, David Brandt

Proceedings of the Arkansas Nutrition Conference

This study explores the alignment of theoretical broiler growth models with practical farm conditions, emphasizing the value of integrating commercial data into simulation models. The EFG Broiler Growth Model, developed by Emmens, Fisher and Gous, is highlighted for its mechanistic approach, predicting growth based on feed intake. While empirical models are useful, they are limited by changes in genetics. Both mechanistic and empirical models struggle to predict how broilers will respond to feed under the challenging conditions typically experienced in commercial operations. The study also discusses the development of empirical models to determine broiler responses to balanced protein and energy, …

Monitoring Of Cadmium And Lead Accumulation In Soil-Forage-Animal Continuum In Pasture Land Irrigated With Ground Water In Bhalwal, Punjab, Pakistan, Zafar Iqbal, Kausar Parveen, Kafeel Ahmad, Tasneem Ahmad, Naila Riaz, Abrar Hussain, Asma Ashfaq, Faiza Zubair, Ijaz Rasool Noorka, Abid Ejaz, Hafsa Memona, Shahzadi Mahpara, Allah Bakhsh Gulshan, Tayyaba Aziz, Tayyba Liaqat, Mumtaz Akhtar, Muhammad Umer Farooq Awan, Farzana Siddique, Abdllah Saleh Alsubail, Rand Suleiman Alhuthayli

Journal of Bioresource Management

Recent study was directed to check the accumulation of Cd and Pb in pasture land treated with ground water. In particular the transfer of cadmium and lead from soil to forages and in turn to animal (buffaloes) was conducted in Bhalwal, Punjab, Pakistan which comes under sub-tropical environmental conditions. The Cd and Pb concentration in selected samples was explored by atomic absorption spectrophotometer (AA-6300 Shimadzu Japan). The results depicted the concentration of cadmium in water, soil, forages, milk and hair of buffaloes was in the range of 0. 00320 – 0.00866 mgL^-1, 1.9500 to 5.3000 mg/kg, 0.300 to …

Impacts Of Cruciferous Extracts On The Parasitism Efficiency Of Diadegma Insulare; A Hymenopterous Parasitoid Of The Diamondback Moth, Muhammad Sajid Qureshi, Wali Muhammad, Muhammad Adnan Bodlah, Abdul Mannan Hamzah, Muhammad Saeed, Riaz Hussain

Journal of Bioresource Management

Herbivore's attack stimulates chemical production in the plants; that communicates with natural enemies (chemical communication) and urges them for help (i.e. cry-for-help phenomenon). Such chemicals play an important role to attract the parasitoids and increase the chances of host pests' encounter. Current studies were performed to observe the extracts' efficacy in order to attract the parasitoid (i.e. Diadegma insulare) and thereby increase the likelihood of encounter with the host pest (i.e. Plutella xylostella). Cruciferous cultivars' extracts were developed and applied with artificial release of parasitoids under semi-field conditions. Findings revealed that extracts had the potential to enhance the …

Maximizing Growth And Yield Of Black Seed (Nigella Sativa L) Through Optimized Phosphorus And Boron Levels, Abdul Qudoos Khan, Abdul Qadeer Khan, Hanif Ullah, Navid Iqbal, Muhammad Junaid, Imad Murad, Faridullah Mamozai, Romaisa Amin, Waleed Iqbal, Uzair Ahmed

Journal of Bioresource Management

Improper nutrient management cause yield reduction in black seed yield and quality. Therefore, a field trial was executed in the growing season 2022-23 at The University of Agriculture Peshawar to inspect the effects of different phosphorus (P) and boron (B) levels on black seed (Nigella sativa L.). The experiment used a randomized complete block design with a split-plot arrangement, replicated thrice. The study examined four P levels (0, 15, 30, and 45 kg/ha) and four B levels (0, 1, 2, and 3 mg/L) on various growth and yield parameters of black seed. Plots treated with 45 kg/ha of P …

Target Consumers For Locally Grown Fruit In Utah, Kynda R. Curtis, Makaylie Langford, Tammy King

All Current Publications

This fact sheet describes target consumers for locally grown fruits and fruit products in Utah. The data examined here comes from an online survey (via Qualtrics) of Utah consumers conducted in 2023. Here, we compare consumers who are willing to pay a higher premium for local fruit products and those who are not, outlining the distinction between them in terms of their demographics, purchasing patterns and shopping habits, as well as their lifestyle and attitudes.

Target Consumers For Organically Grown Fruit In Utah, Kynda R. Curtis, Makaylie Langford, Tammy King

All Current Publications

This fact sheet provides an overview of target consumers for organically grown fruits and fruit products in Utah. The data examined here comes from an online survey (via Qualtrics) of Utah consumers conducted in 2023. Here, we compare those willing to pay premiums for organically grown fruit and those unwilling to do so, outlining the distinction between them in terms of their demographics, purchasing patterns and shopping habits, as well as their lifestyle and attitudes.

Predicting Spatiotemporal Patterns Of Productivity And Grazing From Multispectral Data Using Neural Network Analysis Based On System Complexity, Amanda J. Ashworth, A. Avila, H. Smith, T. E. Winzeler, P. Owens, C. Flynn, P. O'Brien, D. Philipp, J. Su

Environmental Dynamics Faculty Publications and Presentations

Remote sensing tools, along with Global Navigation Satellite System cattle collars and digital soil maps, may help elucidate spatiotemporal relationships among soils, terrain, forages, and animals. However, standard computational procedures preclude systems-level evaluations across this continuum due to data inoperability and processing limitations. Deep learning, a subset of neural network, may elucidate efficiency of livestock production and linkages within the livestock-grazing environment. Consequently, we applied deep learning to environmental remote sensing data to (1) develop predictive models for yield and forage nutrition based on vegetation indices and (2) at a pixel-level (per 55 m²), identify how grazing is …

Learning Extension Through Firsthand Experiences Of Graduate Students In An Amish Community, Raul Villanueva, Yaziri Gonzalez, Izabela Gomes

Journal of Extension

Two graduate students and a faculty member of the Department of Entomology at the University of Kentucky developed and implemented a two-year extension program aimed to train Amish farmers on identification and management of their major agricultural problems. Students conducted periodical visits to the community, inquired about farmers’ needs, and identified relevant issues, which were outlined to plan two field days offered in their properties. Amish farmers gained knowledge on diverse topics and were eager to receive handouts and publications. Amish were open to apply new technologies and implement them without main changes in their traditional methods of agriculture. The …

Nationalism And The Federal State’S Agricultural Policies; The Politics Of Cassava In Zambia, 1953-1963, Kaluba Jickson Chama

Zambia Social Science Journal

During the Federal era, cassava played an important role in political mobilisation in Luapula Province. Nonetheless, the crop has seldom received attention in the otherwise rich historiography on African nationalism and anti-Federation struggle in present-day Zambia. Drawing on archival sources and oral history, and a reading of secondary sources, this article attempts to contribute to the historiography of cassava in Zambia and its contribution to the nationalist cause. The article examines the position of cassava in political mobilisation by nationalist politicians. It explores the link between the politics of cassava and those of nationalism. This article’s key argument is that …

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #65 September 2024

Gamma Sigma Delta, Nebraska Chapter: Newsletters

Chapter Officers and Committees for 2024

2023 Chapter Awards Recipients: Undergraduate Awards, Graduate, Teaching and Research Awards

Lack of Award nominations and New Initiates

Membership information and Dues form

Chapter Student Award Fund Info

In Memoriam: Lyle E. Davis (January 27, 1927-January 23, 2023); David John Andrews (June 28, 1933-February 15, 2024); Richard A. Wiese (April 3, 1928-February 22, 2024); William T. “Bill” Ahlschwede (January 31, 1942-February 27, 2024); Theodore (Ted) Eugene Hartung (January 26, 1929-June 5, 2024); John Edward Foster (May 22, 1940-October 1, 2024)

Root Lesion And Burrowing Nematodes And Their Management, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Nematodes are common soil pests that feed on the roots of a wide range of crops in all agricultural areas of Western Australia, resulting in significant crop yield loss. Root lesion nematode can be managed but not eradicated.

This factsheet summarises the biology of the root lesion nematode (RLN, Pratylenchus spp.) and burrowing nematode (Radopholus spp.) species that damage Western Australian (WA) crops, and their diagnosis and management.

A Midwest Perspective On Biochar Integration In Extension, Blake C. Colclasure, Elizabeth Bose, Jack Dempsey, Taylor K. Ruth

Journal of Human Sciences and Extension

Biochar can be considered a climate-smart, agricultural soil amendment due to its ability to provide long-term storage of carbon. Research examining the impacts of biochar-enriched soils reported improved soil characteristics often leading to agricultural benefits, especially in nutrient-poor soils. Despite the potential use of biochar in the Midwest, United States, few studies have examined biochar in Extension. This study, guided by the Theory of Reasoned Action, used survey methodology to collect information on Midwest Extension agents’ (n = 125) knowledge, attitudes, and subjective normative beliefs toward biochar. These factors, along with agents’ demographics and perceptions toward sustainable soil amendments, were …

Yellow Spot And Septoria Nodorum Blotch And Their Management In Wheat, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Leaf spot diseases affecting wheat in Western Australia (WA) are yellow spot (Pyrenophora tritici-repentis), septoria nodorum blotch (Parastagonospora nodorum), and septoria tritici blotch (Zymoseptoria tritici). They are caused by 3 different fungal pathogens but the disease symptoms and biologies are similar.

Impact from leaf spot diseases vary greatly from season to season and between locations. They are a problem in continuous wheat crops in stubble retention (no-till) farming systems. For the most effective control, an integrated disease management (IDM) approach is required.

This page outlines the symptoms, diseases spread and risk factors, yield and quality losses, and management options for …

Pasture Data Reconciliation Of The South West Agricultural Zone Of Western Australia September 2024, Tafesse Estifanos, Amir Abadi Ghadim, Paul Mattingley, Kate Pritchett, Tony Della Bosca

Animal production and livestock published reports

Western Australia’s (WA) agricultural land use system features extensive pasture land vital for grazing sheep and cattle. Most pastures in the south west of Western Australia consist of annual species that grow during the cool, wet winters of the Mediterranean climate and senesce in the warm to hot, dry summers. Understanding the spatial distribution of pasture areas within the context of mixed farming is essential for developing effective land management strategies to enhance livestock production and profitability through balanced pasture supply and demand.

This report focuses on reconciling pasture area data for the south-west of Western Australia’s agricultural zone across …

Septoria Avenae Blotch And Its Management In Oats, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Septoria avenae blotch (Phaeosphaeria avenaria f.sp. avenaria) is a stubble borne fungal disease of oats and is the most common oat disease in Western Australia and occurs throughout the cereal growing areas.It is host specific, meaning it only affects oats.

This page summarises the symptoms, factors favouring disease risk and spread, yield and quality losses, and management strategies for the disease

Breeding Ewes Are Worth Feeding, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Despite potentially elevated grain prices, strong prices for meat and wool mean that Western Australian sheep farmers can confidently supplementary feed their underweight ewes in summer/autumn.

Analysis in 2019, based on then-current prices, showed it was a profitable investment to feed all ewes to maintain condition during pregnancy, and to feed low condition score single bearing ewes and low and medium condition score twin bearing ewes to gain condition.

In 2019, John Young from Farming Systems Analysis Service completed an analysis on the value of a ewe in the WA farming system. His report had some important messages for the …

Growth-Promoting Bacteria And Salicylic Acid Improve Essential Oil, Flower Yield, And Compatible Osmolyte Content Of Common Yarrow (Achillea Millefolium L.) Under Drought Stress, Mohsen Zarepour, Mohammad Mehdi Rahimi, Abdul Samad Kelidari, Moslem Abdipour

The Philippine Agricultural Scientist

Drought is one of the major constraints on agricultural productivity in arid and semiarid regions. Coping with drought stress involves several adaptations and mitigation strategies such as the use of plant-growth promoting bacteria and salicylic acid, which was examined in this study under two levels of water regimes (well-watered as control and drought stress) in southwest Iran in 2018 and 2020 on common yarrow (Achillea millefolium). Catalase levels significantly increased in response to drought stress and salicylic acid application. Salicylic acid and combined application treatment of both bacteria also resulted in a significant increase in proline compared with …

Assessment Of Novel Protein Ingredient Arthrospira Platensis And Soybean Genotype Amino Acid And Oil Selection Improvements On Broiler Performance For A 28-42 D Feeding Period, Savannah C. Wells-Crofton, Kenneth B. Nelson, Garrett J. Mullenix, Craig W. Maynard, Michael T. Kidd

Poultry Science Faculty Publications and Presentations

Two experiments were conducted to assess the efficiency of including the novel protein ingredient Arthrospira platensis or improved soybean meal in a broiler diet. The first experiment aimed to determine the feeding value of soybean meal produced from varieties of soybeans bred for increased amino acid content (SBAA) and improved oil content (SBO) compared to a conventional soybean variety in an ANOVA design fed to Cobb 500 female broilers for 28–42 d. The SBAA and SBO soybeans contained overall higher amino acid content and lower oligosaccharide content compared to the conventional soybean variety in addition to improved oil quality. The …

Testing Feed Is Vital For Feed Budgeting, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

A little knowledge of the nutritional value of your supplementary feeds can save you a lot of money and hassle.

In dry seasons, it is likely that farmers will need to start supplementary feeding earlier than usual. The higher requirement for supplementary feeds over dry seasons means accurate feed budgeting becomes increasingly important to minimise feed wastage, for weaner survival, and to maintain stock at the right condition score (CS) for joining.

Leaf Diseases And Their Management In Oats, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Leaf diseases of oats impact on grain yield and quality and reduce hay quality characteristics, such as colour and digestibility. This page outlines the symptoms, factors favouring disease risk and spread, and management.

Major leaf diseases of oats are septoria avenae blotch, stem rust, leaf rust, and barley yellow dwarf virus. Their severity changes with seasons.

Foliar Diseases And Their Management In Lupins, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

This factsheet describes symptoms and management of the major fungal and viral diseases affecting lupin foliage, stems, and pods. Several of these diseases have the capacity to cause significant losses if not managed effectively.

Inoculum can be carried in soil, seed, stubble, on green regrowth, or by insect vectors, depending on the disease. Therefore, an integrated approach to disease management is required using tactics such as crop rotation, stubble management, fungicide seed dressing, variety selection, and seed testing

Early Season Wheat Response To Electrochemically Precipitated Struvite In Various Soils In The Greenhouse, Tatum Simms, Kristofor R. Brye, Trenton L. Roberts, Lauren F. Greenlee

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Fertilizer-phosphorus (P) materials can be recovered from wastewater and used to supplement mined phosphate rock, where one such material is struvite [MgNH4PO4·6(H2O)]. This study aimed to compare electrochemically precipitated struvite (ECST) reclaimed from synthetic wastewater to other commercial fertilizer-P sources in cultivated soils from Arkansas [silty clay loam (AR-SiCL) and silt loam (AR-SiL)], Missouri [(silt loam; MO-SiL 1 and 2)], and Nebraska [silt loam (NE-SiL) and sandy loam (NE-SL)]. A greenhouse pot study was conducted for 60 days with unvernalized wheat (Triticum aestivum) using five fertilizer-P sources [ECST, chemically precipitated struvite (CPST), monoammonium phosphate (MAP), triple superphosphate (TSP), …

Joint Regional Conference, Prairie View A&M University

Sustainable Forestry and African American Land Joint Regional Conference

Prairie View A&M University (PVAMU) and the University of Arkansas at Pine Bluff (UAPB) are hosting the third annual Sustainable Forestry and African American Land Retention (SFLR) Joint Regional Conference from August 29 to August 30. Themed “Sustaining Forests and Saving Our Land,” the virtual conference will gather forestry and land management experts to offer critical insight into retaining land within family generations and growing generational wealth. The SFLR Program assists African American forest landowners with entry into forest management and addressing barriers to land retention.

Several notable conference speakers include PVAMU’s newly appointed President, Tomikia P. LeGrande, Ed.D., Dean …

Alfalfa Nutrient Management Guide, Megan Baker, Matt Yost, Clara Anderson, Grant Cardon, Jody Gale, Earl Creech, Cody Zesiger, Kalen Taylor

All Current Publications

Proper nutrient management is key to maintaining high yields, quality, and stand longevity for profitable alfalfa production. By the time that visible symptoms of nutrient deficiencies have appeared, yield, quality, and economic losses have already occurred. Soil tests provide a proactive opportunity to prepare fertilizer or amendment supplementation before the growing season. Fertilizer applications can greatly improve crop yield and quality and, in turn, greatly increase economic returns.

Effect Of Heat Stress And Feed Type On Trimethylamine Concentration And Fishy Odor Of Duck Eggs, Pachara Pearodwong, Winai Kaewlamun, Sarawanee Khunmanee, Thuwanon Boonkerd, Thananon Junsuri, Kajohn Nitiwararak, Pantira Hempattarasuwan, Pattrarat Chanchaithong

The Thai Journal of Veterinary Medicine

We investigated the effect of heat stress and feed type on the trimethylamine (TMA) concentration and the fishy odor of duck eggs (Study 1) and the relationship between the TMA level in serum and egg content (Study 2). In Study 1, pooled egg samples (n = 75) were divided by feed type (CP12, n = 24; CP18, n = 27; CP20, n = 24) and heat stress (no, n = 49; moderate, n = 15; severe, n = 11). The collected samples were obtained for TMA analysis and sensory testing. In Study 2, a total of 15 egg and 15 …