Reduction Of Protein Levels In Broiler Feed For Commercial Application – A German Case,
2022
University of Arkansas, Fayetteville
Reduction Of Protein Levels In Broiler Feed For Commercial Application – A German Case, Andreas Lemme, Kilian Fenske, Heiner Westendarp, Mathias Guhe, Elmar Rother
Proceedings of the Arkansas Nutrition Conference
A project was initiated to apply dietary CP reduction under commercial conditions. The main objective was to demonstrate and validate that dietary CP can be reduced without compromising broiler performance in a production system which is already rather efficient. In addition, we wanted to demonstrate the potential of dietary CP reduction on reducing N-excretions especially in the context of German revised regulations and monitoring attempts. Finally, as previous research suggested, few further aspects such as impact of dietary CP reduction on litter quality and quantity, footpad health, change of ingredient inclusion levels and related impact on sustainability impact factors were …
Application Of Simulation Modelling In Broiler Integration: Is It A Necessary Nutritional Tool?,
2022
University of Arkansas, Fayetteville
Application Of Simulation Modelling In Broiler Integration: Is It A Necessary Nutritional Tool?, Peter Chrystal
Proceedings of the Arkansas Nutrition Conference
Modelling techniques have been used in many industries globally to illustrate to others an understanding of the way processes work. Also, engineers and scientists employ models to predict the consequences of various courses of action. Simple pictorial models, such as the diagram of the chicken digestive system, are useful in education and may be more suitable than a photograph for the purposes of explaining how the animal converts ingested feed into components that can be assimilated, leaving residue that is excreted. Complex, predictive models seek to quantify a specified outcome based on defined inputs. Many attempts have been made over …
State Of The Art Pullet And Breeder Nutrition,
2022
University of Arkansas, Fayetteville
State Of The Art Pullet And Breeder Nutrition, Rick Van Emous
Proceedings of the Arkansas Nutrition Conference
During the last six to seven decades, broilers have been successfully selected for maximum growth and feed efficiency (Zuidhof et al., 2014). Modern fast-growing broilers reach a body weight of 2.0 to 2.5 kg in 35 to 45 days with an average daily growth of 55 or more gram a day (Augère-Granier, 2019). In a study with different broiler strains representative of broilers in 1957 or 1978 were compared with a broiler strain from 2005 (Zuidhof et al., 2014). The 2005 strain showed, over a 56-day growth period, a 4.6 times higher growth rate and a 50% lower feed conversion …
Broiler Breeder Males: Feed And Nutrition Discussion,
2022
University of Arkansas, Fayetteville
Broiler Breeder Males: Feed And Nutrition Discussion, Benton Hudson
Proceedings of the Arkansas Nutrition Conference
The methods for feeding broiler breeder males have evolved over recent decades, and further revisions will likely be needed as males become more challenging to manage. Since the introduction of separate male feeding systems in the early 1980’s, breeder males’ nutrient needs have been better managed via daily feed restriction. If a breeder operation can effectively produce, haul, and store a separate male diet, then it provides more options to use different nutrient levels or feed additives that are designed to enhance fertility. This article will outline the history of male-separate feeding and revisit nutritional research on fertility of broiler …
Amino Acids Were Not All Created Equal,
2022
Poultry Research Foundation, Faculty of Science, The University of Sydney, Camden
Amino Acids Were Not All Created Equal, Peter H. Selle, Shemil P. Macelline, Peter V. Chrystal, Sonia Y. Liu
Proceedings of the Arkansas Nutrition Conference
The contention that amino acids were not all created equal is based on the simple premise that intestinal uptakes of non-bound (synthetic, crystalline, feed-grade) amino acids are more rapid than their protein-bound counterparts. The post-enteral ramifications of this difference in bioequivalence are amplified in broiler chickens given their express growth rates and just one complication is the post-prandial oxidation of amino acids. The lack of bioequivalence between non-bound and protein-bound amino acids is a real obstacle to the development and adoption of reduced-crude protein diets that have the potential to promote sustainable chicken-meat production Thus, the purpose of this paper …
Recent Advancements On Calcium And Phosphorus Recommendations In Broilers,
2022
University of Arkansas, Fayetteville
Recent Advancements On Calcium And Phosphorus Recommendations In Broilers, Justina Caldas, Marcelo Silva
Proceedings of the Arkansas Nutrition Conference
Calcium and phosphorus have been recognized essential nutrients in chickens since 1950’s (Lesson & Summers, 2001) playing important roles in bone development, among other functions. Calcium is assumed an inexpensive nutrient in animal least cost formulation while phosphorus is considered expensive and scant. The actual economic impact comes from the influence of calcium on phosphorus requirements, changes in phosphorus digestibility, buffer capacity, gut health, trace mineral absorption, fat digestibility, welfare traits, etc. Both minerals have important interactions to be considered during formulation. Few changes have been made over the past 20 years to calcium and phosphorus recommendations because these values …
Decoding The Gut Microbiome; Providing Solutions For Poultry Production,
2022
University of Arkansas, Fayetteville
Decoding The Gut Microbiome; Providing Solutions For Poultry Production, Nichoals Evans, Peter Karnezos, Curtis Novak, Diana Ayala, Emily Kimminau, Kay Russo
Proceedings of the Arkansas Nutrition Conference
The term “microbiome” refers to all the micro-organisms within a particular environment. In poultry, the microbiome is influenced by the barn, diet, and age of the birds and is believed to modulate immunity and inflammation. In the past, culture methods were primarily used to evaluate the presence of the various micro-organisms present in the microbiome; however, recent technological advances in genomic sequencing have revolutionized sample analysis. This technology has opened new avenues of research in poultry production and our understanding of the associated health challenges. Turkey cellulitis has been a major economic and health concern for many years. Traditional bacterial …
Application Of Nutritional Immunology In The Mitigation Of Economic And Production Losses In The Poultry Industry Associated With Food-Borne Pathogens, Coccidiosis, And Necrotic Enteritis.,
2022
University of Arkansas, Fayetteville
Application Of Nutritional Immunology In The Mitigation Of Economic And Production Losses In The Poultry Industry Associated With Food-Borne Pathogens, Coccidiosis, And Necrotic Enteritis., Shahna Fathima, Ramesh K. Selvaraj
Proceedings of the Arkansas Nutrition Conference
Sub-therapeutic doses of antibiotics were used in poultry production since the 1950s for improved production, prophylaxis, and animal welfare. Extensive and indiscriminatory use of antibiotics led to the emergence of antibiotic resistance in food-borne pathogens of public health significance (Jones & Ricke, 2003). As per the United States Centre for Disease Control, more than 2.8 million infections in 2019 were caused by multidrug resistant bacteria. Due to public health concerns, the use of antibiotic growth promoters in livestock production was prohibited by Sweden and Denmark in 1986 and 1998 respectively (Hammerum et al., 2007). The European Union banned the use …
A Dynamic Approach To Feed Formulation,
2022
University of Arkansas, Fayetteville
A Dynamic Approach To Feed Formulation, Rob Gous
Proceedings of the Arkansas Nutrition Conference
The objective of this paper is to demonstrate that the opportunity cost of using fixed tables of nutrient requirements when formulating feeds for broilers can be considerable, and that nutritionists should consider a more dynamic approach to defining the lower bounds of amino acids in particular, in line with the objective of the business, which is to maximise profit. In order to do this, it is necessary to consider the potential growth rate of the broiler, the cost of feed and amount of feed consumed, and the income generated from the sale of product.
Transitioning To Net Energy: A Swine Story,
2022
Iowa State University
Transitioning To Net Energy: A Swine Story, John F. Patience
Proceedings of the Arkansas Nutrition Conference
Net energy (NE) is one member of the sequence of energy systems which also includes gross energy (GE), digestible energy (DE), and metabolizable energy (ME). It is perhaps the most sophisticated because it attempts to consider more components of the ingredient or diet which normally cannot be used by the pig for maintenance and/or productive purposes. Gross energy makes no such adjustment and therefore has little direct value in diet formulation. Digestible energy corrects for energy which is lost in the feces, and metabolizable energy also adjusts for energy lost in the urine. The data in Table …
Where Can We Go With Net Energy In Poultry?,
2022
University of Arkansas, Fayetteville
Where Can We Go With Net Energy In Poultry?, Katie Hilton
Proceedings of the Arkansas Nutrition Conference
Metabolizable energy (ME) is the main system used globally in poultry industry for feed formulation and for evaluating feed ingredients and mixed feeds (de Boer and Bickel, 1988). ME is considered a reliable index of what is available to the bird for maintenance and production but is not a predictor of how efficiently the bird uses the available energy (MacLeod, 2000). The ME system developed by Hill and Anderson (1958) was reported to provide less variation in energy values for feed and ingredients than the Fraps PE system, but MacLeod (1994, 1997, 1999) suggest that the low variation …
Limestone Solubility: What Can You Do About It?,
2022
University of Arkansas, Fayetteville
Limestone Solubility: What Can You Do About It?, Wenting Li, Katie Hilton, Franco Mussini, Janet Remus
Proceedings of the Arkansas Nutrition Conference
Calcium (Ca) is essential for bone development mineralisation, as well as for eggshell formation, muscle and neural functions. Depending on the type of diets (veggie vs. non-veggie), species (turkey, chicken, duck), and age of animal (young vs. adult), limestone can contribute up to 95% total Ca in the final diet, with more Ca from limestone for younger animals with veggie diet. Despite the significant contribution of limestone to total diet Ca levels, the bioavailability variation of limestone Ca is rarely considered. Phosphorus (P) is a limited resource and is the third most costly ingredient in poultry …
Optimization Of Microwave-Assisted Extraction Of Total Flavonoids From Leaves Of Moringa Oleifera Lam. By Response Surface Methodology And Its Antibacterial And Antioxidant Activities,
2022
School of Resources and Environment, Baoshan University, Baoshan, Yunnan 678000 , China
Optimization Of Microwave-Assisted Extraction Of Total Flavonoids From Leaves Of Moringa Oleifera Lam. By Response Surface Methodology And Its Antibacterial And Antioxidant Activities, Yang Li-Hua, Dong Xiao-Qing, Dong Qi-Lu, Li Xiao-Jiao
Food and Machinery
Objective:The purpose of this study is to improve the extraction rate of total flavonoids from the leaves of Moringa oleifera Lam. and evaluate their in vitro antibacterial and antioxidant capacity. Methods:The extraction of total flavonoids from the leaves of M. oleifera Lam. from Baoshan city was optimized by Box-Behnken response surface methodology, and its antibacterial and antioxidant activities were evaluated. Results: The optimal conditions for microwave-assisted extraction of total flavonoids from leaves of M. oleifera Lam. were solid-liquid ratio1∶29 (g/mL), microwave power 567 W, microwave time3.6 min and ethanol fraction 50%, and the highest extraction rate of total …
Study On Optimization Of Extraction Technology And Antibacterial Activity Of Total Flavonoids From The Root Of Clausena,
2022
College of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo, Guangxi 532200 , China
Study On Optimization Of Extraction Technology And Antibacterial Activity Of Total Flavonoids From The Root Of Clausena, Xu Dan-Ni, Su Xiu-Fang, Huang Li-Juan
Food and Machinery
Objective:This study aimed to optimize the optimal extraction process of total flavonoids from the root of Clausena anisum-olens and determine the yield and antibacterial effect of total flavonoids from different producing areas. Methods:The total flavonoids were extracted by ultrasonic method from the roots of C. anisum-olens. Through single factor and orthogonal test, the effect of ultrasonic assisted extraction conditions on the extraction rate of total flavonoids from the root of C. anisum-olens was investigated, and the extraction and antibacterial test of total flavonoids from various producing areas were carried out. Results: The optimum extraction process of total flavonoids …
Study On Anti-Fatigue Activities Of Chick-Pea Oligopeptides,
2022
College of Physical Education and Research, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Study On Anti-Fatigue Activities Of Chick-Pea Oligopeptides, Jia Qian-Sheng, Liu Yuan-Yang, Li Dan
Food and Machinery
Objective:The purpose of this study was to explore the antioxidative activity in vitro experiments and the anti-fatigue activity of chickpea oligopeptides in mice. Methods:In this study, the antioxidant capacity of chickpea oligopeptide was detected by in vitro method, and the anti-fatigue capacity of chickpea oligopeptide was comprehensively evaluated by detecting physiological and biochemical indexes of mice. Results:The superoxide anion radical scavenging ability IC50of chickpea oligopeptide was 4.26 mg/mL, which was significantly higher than that of GSH positive control group (P＜0.05); The reducing power of chickpea oligopeptide was significantly higher than that of GSH positive control …
Cell-Type-Specific Profiling Of The Arabidopsis Thaliana
Membrane Protein-Encoding Genes,
2022
University of Nebraska-Lincoln
Cell-Type-Specific Profiling Of The Arabidopsis Thaliana Membrane Protein-Encoding Genes, Sergio Alan Cervantes-Pérez, Marc Libault
Department of Agronomy and Horticulture: Faculty Publications
Membrane proteins work in large complexes to perceive and transduce external signals and to trigger a cellular response leading to the adaptation of the cells to their environment. Biochemical assays have been extensively used to reveal the interaction between membrane proteins. However, such analyses do not reveal the unique and complex composition of the membrane proteins of the different plant cell types. Here, we conducted a comprehensive analysis of the expression of Arabidopsis membrane proteins in the different cell types composing the root. Specifically, we analyzed the expression of genes encoding membrane proteins interacting in large complexes. We found that …
Cell-Type-Specific Profiling Of The Arabidopsis Thaliana
Membrane Protein-Encoding Genes,
2022
University of Nebraska-Lincoln
Cell-Type-Specific Profiling Of The Arabidopsis Thaliana Membrane Protein-Encoding Genes, Sergio Alan Cervantes-Pérez, Marc Libault
Department of Agronomy and Horticulture: Faculty Publications
Membrane proteins work in large complexes to perceive and transduce external signals and to trigger a cellular response leading to the adaptation of the cells to their environment. Biochemical assays have been extensively used to reveal the interaction between membrane proteins. However, such analyses do not reveal the unique and complex composition of the membrane proteins of the different plant cell types. Here, we conducted a comprehensive analysis of the expression of Arabidopsis membrane proteins in the different cell types composing the root. Specifically, we analyzed the expression of genes encoding membrane proteins interacting in large complexes. We found that …
Lessons Learned From The 2019 Nebraska Floods: Implications
For Emergency Management, Mass Care, And Food Security,
2022
Gretchen Swanson Center for Nutrition
Lessons Learned From The 2019 Nebraska Floods: Implications For Emergency Management, Mass Care, And Food Security, Eric E. Calloway, Nadine B. Nugent, Katie L. Stern, Ashley Mueller, Amy L. Yaroch
Nebraska Cooperative Extension: Faculty and Staff Publications
This qualitative study aimed to understand the actions, challenges, and lessons learned for addressing the food and water needs of flood survivors, with a special focus on vulnerable populations and the implications for food security, to inform future disaster response efforts in the U.S. Semi-structured in-depth interviews were conducted from January to August 2020 with the local, state, and national stakeholders (n = 27) involved in the disaster response to the 2019 Nebraska floods, particularly those involved in providing mass care, such as food, water, and shelter, for the flood survivors. The challenge themes were related to limited risk …
Effect Of Ethephon Ripening And Peeling On Quality Of Fresh Walnut During Freezing Storage,
2022
Agricultural Product Storage and Processing Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070 , China ；Gansu Innovation Center of Fruit and Vegetable Storage and Processings, Lanzhou, Gansu 730070 , China
Effect Of Ethephon Ripening And Peeling On Quality Of Fresh Walnut During Freezing Storage, Wu Xiao-Hua, Chen Bai, Li Ming-Ze, Zhang Rui, Feng Ji-Hu
Food and Machinery
Objective:To evaluate the feasibility of the production of ethephon in the freezing thawing and fresh keeping of fresh walnut, and to provide theoretical basis and technical support for fresh walnut freezing thawing and fresh keeping technology system. Methods:The late fruiting walnut variety 'Qingxiang' from Longnan county of Gansu province was used as the experimental material, and then the green walnut was picked by hand and then peeled by Ethephon. Meanwhile, the artificial peeling was used as the control (CK). The fresh walnut was peeled and stored in a constant temperature freezer with temperature of -7~-5 ℃ and humidity …
Changes Of Physicochemical Properties Of Rice Glutelin Fibril Aggregates During Storage,
2022
School of Food and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114 , China ；Hunan Provincial Engineering Technology Research Center of Aquatic Food Resources Processing, Changsha, Hunan 410114 , China
Changes Of Physicochemical Properties Of Rice Glutelin Fibril Aggregates During Storage, Huang Hui, Wang Chuan-Yang, Li Shi-Chao, Yu Jian, Wang Fa-Xiang, Liu Yong-Le, Li Xiang-Hong
Food and Machinery
Objective:To explore the relationship between functional properties of rice glutelin fibril aggregates (RGFAs) solution formed by different storage and heating time.Methods:The RGFAs samples were prepared by heating rice glutelin (RG) at 85 ℃ and pH 2.0 for 2~15 h, and stored at 4 ℃ for 1 day and 4 days, respectively. The surface hydrophobicity, emulsifying property, shear viscosity of RGFAs samples as well as the gelatinization characteristics and hydrolysis rate of the mixture of RGFAs and starch were measured.Results:After storage at 4 ℃ for 4 days, the emulsifying properties were significantly improved. The surface hydrophobicity …
