DOCSLIB.ORG

2018 Annual Meeting Program

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
2018 Annual Meeting Program S R Y C Poultry Science Association T I E L N U C O E P 2018 Annual Meeting Program A 1908 San Antonio Marriott Rivercenter S N S O O C I AT I San Antonio, Texas • July 23–26, 2018 Cover Photo Credits: River Walk Umbrellas at Night, Fiesta Noche del Rio Dancer, and Alamo: visitsanantonio.com; Tamales: visitsanantonio.com, Tracey Maurer. Poultry Science Association 2018 Annual Meeting Program President’s Welcome . 5 Schedule at a Glance . 7 Contact Information and Meeting Details . 13 San Antonio Maps . 17 PSA 2018 Special Events . 19 PSA 107th Annual Meeting Sponsors . 21 PSA 107th Annual Meeting Exhibitors . 24 Program Grid . 29 Monday, July 23 WPSA Lecture: The Current State and Future Demands of the Poultry Industry: Will We Meet Our Commitments? . 33 Student Competition: Immunology, Health, and Disease I . 33 Student Competition: Metabolism and Nutrition, Amino Acids I . 34 Student Competition: Metabolism and Nutrition, Nutrition I . 35 Student Competition: Metabolism and Nutrition, Vitamins and Minerals I . 36 Student Competition: Animal Well-Being and Behavior I . 37 Student Competition: Management and Production I . 37 Informal Nutrition Symposium: Maintaining Production Efficiency in the Face of Changing Consumer Demands . 38 Student Competition: Immunology, Health, and Disease II . 39 Student Competition: Physiology and Reproduction . 41 Student Competition: Molecular and Cellular Biology . 43 Student Competition: Management and Production II . 43 Student Competition: Processing and Products . 45 Student Competition: Genetics and Genomics . 46 Student Competition: Extension and Instruction . 47 Tuesday, July 24 Student Competition: Animal Well-Being and Behavior II . 48 Student Competition: Metabolism and Nutrition Nutrition II . 50 Student Competition: Metabolism and Nutrition, Amino Acids II . 51 Student Competition: Metabolism and Nutrition, Enzymes . 53 Student Competition: Metabolism and Nutrition, Feed Additives . 55 Student Competition: Microbiology and Food Safety . 56 Student Competition: Metabolism and Nutrition, Vitamins and Minerals II . 58 Symposium: Success in the Antibiotic-Free Era Starts in the Breeders and Hatchery . 58 Animal Well-Being and Behavior . 59 Physiology and Reproduction . 60 Metabolism and Nutrition, Enzymes . 62 Management and Production . 64 Symposium: Addressing Issues Facing the Poultry Industry . 66 Symposium: Current and Future Directions for Next-Generation Sequencing of Poultry Microbiomes . 67 Extension and Instruction . 67 Topical Networking: Addressing Key Scientific Challenges . 68 Wednesday, July 25 PSA Business Meeting . 69 4-Minute Abstract Forum: A Showcase for the Future? . 69 Metabolism and Nutrition, Amino Acids . 72 Metabolism and Nutrition, Feed Additives I . 73 Genetics and Genomics . 74 Microbiology and Food Safety . 74 Metabolism and Nutrition, Vitamins and Minerals . 76 Symposium: Amino Acids and Low-Protein Diets: Benefits for Performance, Meat Quality, Environment, Health, and Welfare of Poultry Birds . 78 Symposium: Novel Applications of Light Applied to Poultry Production: Influencing Growth, Behavior, and Biosecurity . 79 Molecular and Cellular Biology . 80 Immunology, Health, and Disease I . 80 Thursday, July 26 Metabolism and Nutrition, Feed Additives II . 82 Processing and Products . 84 Metabolism and Nutrition, Nutrition I . 84 Symposium: Alternative Poultry Production Practices: What Are the Impacts on Management, Animal Health, Product Quality, and Food Safety? . 86 Symposium: From the Indigestible Fraction to the Global Feed Enzyme Approach . 87 Immunology, Health, and Disease II . 88 Metabolism and Nutrition, Feed Additives III . 89 Metabolism and Nutrition, Nutrition II . 91 National Outreach Workshop: The Future of Agriculture-Serving Audiences of all Sizes Through Integration of Research and Outreach . 92 Symposium: Informing the Future Using the Poultry of the Past . 93 Posters Animal Well-Being and Behavior . 94 Extension and Instruction . 96 Genetics and Genomics . 96 Immunology, Health, and Disease . 96 Management and Production . 99 Metabolism and Nutrition, Amino Acids . .101 Metabolism and Nutrition, Enzymes . .102 Metabolism and Nutrition, Feed Additives . .103 Metabolism and Nutrition, Nutrition . .108 Metabolism and Nutrition, Vitamins and Minerals . .112 Microbiology and Food Safety . .114 Molecular and Cellular Biology . .117 Physiology and Reproduction . .118 Processing and Products . .119 PSA Officers, Directors, and Committees . .120 Poultry Science Representatives . .127 President’s Welcome On behalf of the Board of Directors of the Poultry Science Association and the Annual Meeting Pro- gram Committee, I would like to welcome you to historic San Antonio, Texas, and the 107th PSA An- nual Meeting! As the world’s most respected source for poultry science, this meeting is sure to be an excellent op- portunity to connect with friends and colleagues and take in the latest in poultry science . The entire meeting, except the barbecue, will be held at the fantastic Marriot Rivercenter . With over 600 abstracts and 10 symposia, it is going to be a full meeting . We are trying something new this year—a hybrid between a talk and a poster presentation . This session will have scientists from a variety of disci- plines sharing a quick summary of their work in a 4-minute presentation followed by a poster session . Be sure to check it out! Remember to get your tickets early for the barbecue . This event sells out every year, and this year is sure to be a stompin’ good time . Walk or take the bus to the San Antonio gem, Sunset Station, which has been pristinely renovated to honor the architectural legacy of the historic Southern Pacific Railroad depot terminal . Here you will have the opportunity to go 8 seconds on a mechanical bull, try some line dancing, or sit back and enjoy the music of the live band . The Board of Directors sincerely thanks all of our sponsors and is grateful for their gener- ous support . Sponsorship is vital to delivering a quality meeting that is affordable for all attendees . As you interact throughout the meeting, please take a moment to personally thank the company representatives of each of our sponsors . We extend our appreciation to the PSA leadership and staff, Executive Director Steve Koenig, Director of Business Operations Jon Cole, and Managing Editor and Commu- nications Director David Busboom, for their hard work and oversight in organizing and coordinating our meeting . Thanks are extended to Debi Seymour as well, who again leads the FASS meeting planning team and continues to provide excellent services to our annual meeting . Welcome to San Antonio, and we wish you an outstanding week at the 107th annual meeting of the Poultry Science Association! Valerie L . Carney PSA President 2017–2018 5 2018 Annual Program Committee Thanks to Manpreet and his program committee for their selfless efforts on our behalf . Please take a minute to express your appreciation when you see them this week . Manpreet Singh, General Program Chair (2018) Karen Schwean-Lardner, General Program Chair-Elect (2019) Brian D . Fairchild, General Program Chair-Elect (2020) Valerie L . Carney, ex officio, PSA President Michael J . Darre, Animal Well-Being and Behavior Casey W . Ritz, Extension and Instruction Huaijun Zhou, Genetics and Genomics Ramesh Selvaraj, Immunology, Health, and Disease Kenneth W . Koelkebeck, Management and Production Samuel J . Rochell (Chair), Laura E . Ellestad, Elizabeth A . Bobeck, and Gino Lorenzoni, Metabolism and Nutrition Xiaolun Sun, Microbiology and Food Safety Robert B . Beckstead, Molecular and Cellular Biology Wallace D . Berry Jr ., Physiology and Reproduction Brian C . Bowker, Processing and Products Karen Schwean-Lardner, Student Presentation Evaluations Christopher M . Ashwell and Bruce M . Rathgeber, WPSA Keynote Lecture: The current state and future demands of the poultry industry: Will we meet our commitments? Douglas R . Korver and Mamduh Sifri, Informal Nutrition Symposium: Maintaining production efficiency in the face of changing consumer demands Sangita Jalukar and Theresia A . Lavergne, Symposium: Success in the antibiotic- free era starts in the breeders and hatchery William A . Dozier III, Symposium: Addressing issues facing the poultry industry Steven C . Ricke and Michael J . Rothrock Jr ., Symposium: Current and future directions for next-generation sequencing of poultry microbiomes William Lambert, Symposium: Amino acids and low-protein diets: Benefits for performance, meat quality, environment, health, and welfare of poultry birds Aaron Stephan, Symposium: Novel applications of light applied to poultry production: Influencing growth, behavior, and biosecurity Michael J . Rothrock Jr ., Anne Fanatico, and Steven C . Ricke, Symposium: Alternative poultry production practices: What are the impacts on management, animal health, product quality, and food safety? Pierre-Andre Geraert, Symposium: From the indigestible fraction to the global feed enzyme approach Valerie L . Carney, Symposium: Informing the future using the poultry of the past Darrin Karcher, National Outreach Workshop: The future of agriculture-serving audiences of all sizes through integration of research and outlook 6 Schedule at a Glance Friday, July 20 2:00 pm–6:00 pm PSA Finance Committee . .Conf . Room 10 Saturday, July 21 8:00 am–5:00 pm PSA Board of Directors Meeting . Conf . Room 14 12:00 pm–1:00 pm PSA Board of Directors Luncheon . .Conf . Room 13 Sunday, July 22 8:00 am–5:00 pm PSA Board of Directors Meeting
Load more

Recommended publications
  • Introduction to Pasture-Raised Poultry: Getting Started1
    AN232 Introduction to Pasture-Raised Poultry: Getting Started1 B. Burbaugh, E. Toro, and A. Gernat2 Introduction allowed to free range in the pasture (Figure 1), most commonly seen in laying flocks or be confined to a There are several important points for small and portable house that is rotated throughout the pastures medium scale poultry producers to consider when (Figure 2). There are no parameters for stocking rates thinking about producing pasture-raised poultry as an on pastured poultry in the U.S. alternative to traditional production. This document provides information that will help identify the characteristics of alternative poultry production, explain the opportunities and challenges associated with pasture based production systems, provide an overview of breed selection for egg-type laying hens and meat-type birds, as well as discussing to the equipment and practices that facilitate getting birds off to a good start. Alternative Poultry Production Using the word alternative in this context is a misnomer. Many types of poultry have been raised on pasture for hundreds of years. Pastured poultry production is used to describe a variety of production systems in which birds have access to pasture on a regular basis. Production systems vary widely from stationary houses with permanent yards to portable houses that are moved frequently to a new pasture Figure 1. Free range laying flock. Photo by: Wanda (Fanatico, 2007). Additionally, birds may be Laughlin, UF/IFAS 1. This document is AN232, one of a series titled Introduction to Pasture-Raised Poultry of the Animal Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
    [Show full text]
  • Pastured Poultry Budgets: Slow-Growing Broiler and Organic Comparisons
    Pastured Poultry Budgets: Slow-Growing Broiler and Organic Comparisons A Publication of ATTRA – National Sustainable Agriculture Information Service • 1-800-346-9140 • www.attra.ncat.org By Betsy Conner Pastured poultry producers are becoming more interested in raising slow-growing meat chickens and NCAT Research using organic production practices. Slow-growing meat chickens are an appropriate choice for pastured Specialist systems, and transition to organic is an option since the birds have outdoor access. Pastured systems that © 2010 NCAT use slower-growing breeds and are certified organic are more expensive than the typical system raising fast-growing Cornish-Cross breeds under traditional practices, so it is important to analyze and compare the costs and potential profits in each approach. This publication offers comparison budgets for raising both fast-growing and slow-growing birds on pasture, under both organic and non-organic systems. Contents Introduction ......................1 Slow-growing birds ........1 Organic................................2 Budgets ...............................2 Budget Details ..................4 Large-scale Production .........................6 Slow-growing broilers on pasture. Photo by Katie Short. Introduction slow-growing organic broilers. The budgets give an idea of the differences in cost among Fast-growing Cornish- and White Rock- the systems. Cross broilers are the most popular birds among pastured poultry producers, but Americans are developing a taste for slower- Slow-growing birds growing meat chickens and organically A slow-growing meat bird is defined in raised poultry. Slower-growing birds are this budget as one that requires 12 weeks to reach live harvest weight of 6.5 pounds. ATTRA – National Sustainable better suited to pastured systems, and pas- Agriculture Information Service tured systems also easily make the transi- The fast-growing birds take only eight weeks (www.ncat.attra.org) is managed to reach the same weight.
    [Show full text]
  • Producing Poultry on Pasture
    A3908-01 Pfor smallult farmsry & backyards Producing poultry on pasture astured poultry is a system of raising Drawbacks of pastured poultry poultry for meat, eggs, or pleasure on • Susceptible to predators Pa pasture management system. This • Vulnerable to weather publication will focus mainly on chickens, • Pasturing is seasonal but the concepts are true for all types of poultry, such as ducks and turkeys. For • Requires daily labor, intensive labor if producers with limited resources or for home processing those who wish to raise poultry at home, • In general there are very few licensed the pastured poultry management system poultry slaughter facilities has both benefits and drawbacks. Adam A. Hady Benefits of pastured poultry • Low capital investment Pastured • A production system that can start poultry systems small and grow Cooperative Extension In any pasture poultry system, you will start • Can be a one-person operation your chicks out in a conventional brooding system and then move them out to one of • Potential for extra income three pasture systems when the brooding • Increased soil fertility period is over. • Strong consumer demand, with many consumers looking for an alternative Chicken tractor system to conventional broiler chicken The chicken tractor system of pastured poultry is the most common system used • A process that can involve kids for raising broilers. In this system, groups of birds about 3 to 5 weeks of age are taken out to movable growing pens on pasture. These usually floorless pens are moved Figure 1. The traditional once or twice a day, allowing the birds to chicken tractor with a group of have a regular supply of fresh vegetation commercial broilers (Figure 1).
    [Show full text]
  • Range Poultry Housing
    Range Poultry Housing LIVESTOCK PRODUCTION GUIDE By Robert Plamondon Edited by Anne Fanatico and Richard Earles NCAT Agriculture Specialists June 2003 Abstract: Experienced pastured-poultry producer Robert Plamondon (1) discusses housing designs for outdoor production. Introduction In this document, I will describe housing de- signs that give chickens access to green plants in yards or pastures, as opposed to confinement or Table of Contents bare-yard systems. There are a variety of housing Introduction ......................................... 1 styles commonly used for ranged chickens, each of which is associated with a particular management Background......................................... 2 style that I will also describe. Design Considerations for Range My wife, Karen, and I have been raising free- Operations .......................................... 2 range hens in Oregon since 1996 and pastured broil- ers since 1998. We have 700 hens and will raise over Daily-move Pens ................................. 3 1,500 broilers this year. We have tried many differ- Machine-Portable Housing .................. 8 ent techniques, and I hope this will allow me to speak clearly about the key points and trade-offs in Examples of Machine-Portable Housing each of the major range management styles. ....................................................... 12 I discuss a variety of housing types in this docu- ment. I’ve necessarily placed an emphasis on the Fixed Housing ................................... 14 ones I have used myself, since I have
    [Show full text]
  • SMALL-SCALE POULTRY PROCESSING Table 1
    SSMALLMALL-S-SCCALEALE PPOULOULTRTRYY PPROCESSINGROCESSING By Anne Fanatico NCAT Agriculture Specialist May 2003 Introduction A growing number of small producers are rais- ing poultry outdoors on pasture, processing the birds on-farm, and selling the meat directly to customers at the farm or at a farmers’ market. Many states allow up to 1,000 birds to be processed on a farm each year and sold directly to consumers with no inspection. Some of these small producers are go- ing further—building government-licensed process- ing plants to supply regional or niche markets. Spe- Photo by Paul Helbert cialty “religious kill” is often done in small plants. “Kosher” is the term for Jewish slaughter and “halaal” for Muslim slaughter. Access to processing is a critical issue for small producers. Consolidation in the meat process- ing industry has left very few small plants that will do custom poultry processing. (Large plants generally don’t process for small producers; they can’t keep track of a small batch of birds and can’t make money on small- volume orders.) This publication covers small-scale processing, both on- farm and in small plants. Relevant information on large-scale processing is also included for comparison, to provide con- text, and because small processors need to have some under- standing of how large-scale processing works. Related ATTRA publications ¶ Sustainable Poultry: Production Overview ¶ Growing Your Range Poultry Business: An Entrepreneur’s Toolbox This publication was developed by the National Center for Appropriate Technology (NCAT) (http://www.ncat.org) for Heifer International (http://www.heifer.org) with funds from Southern Region SARE.
    [Show full text]
  • Introduction to Pasture-Raised Poultry: Maximizing Foraging Behavior1
    AN237 Introduction to Pasture-Raised Poultry: Maximizing Foraging Behavior1 Brad Burbaugh, Elena Toro, and Abel Gernat2 A defining characteristic of pasture-raised pouches attached to the lower end of the small poultry is access to pastureland that is rotationally intestine. These pouches are called "ceca" and contain grazed. This practice provides poultry with fresh microorganisms capable of some fiber digestion. pasture and small quantities of grass, insects, and This, in turn, releases small amounts of carbohydrates worms (Glatz et al. 2005; Miao, Glatz, and Ru 2004), that can be used by the birds (Duke 1986). Research which in turn can lead to enhanced quality of meat has shown that the ceca in foraging poultry are much and eggs. larger than that of poultry that do not forage (Fanatico 2007). Other avian species, such as geese and In a well-managed system, birds may eat enough turkeys, can obtain added nutrients from forage nutrients to replace 5%–10% of a grain-based diet. because they are better able to digest fiber due to the However, the percentage of diet substituted by these larger microbial population in their digestive tracts. sources may depend on several factors, like breed and When formulating diets for broilers and layers, it is age of the bird, environment, and the quality of the best to assume zero contribution to the birds' nutrient forage. This makes it difficult to know which requirements from pasture in order to ensure adequate nutrients will be supplied and in what amount nutrient intake from a well-balanced diet. (Fanatico 2007). Birds raised on pasture will still require a grain-based ration formulated for their With an elementary understanding of poultry growth stage.
    [Show full text]
  • Pastured Poultry Presentation
    Pastured Poultry Raising Chickens in a Grass-Based System Erin Campbell-Craven, Livestock Program Assistant Kerr Center for Sustainable Agriculture What is Pastured Poultry? Pastured poultry ≠ free range! • “free range” is a marketing term • “Producers must demonstrate to the Agency that the poultry has been allowed access to the outside.” – USDA Food Labeling fact sheet • Outside could be pavement, gravel, rocks, dirt… not necessarily pasture What is Pastured Poultry? Pastured poultry ≠ organic • Feed must be organic • No use of hormones or antibiotics • Environmental regulations • NO pasture regulations for poultry, only ruminants Pastured poultry are… • Raised on FRESH pasture for most of their lives • Given access to sunshine • Usually frequently rotated • Less crowded (enclosure space per bird 1-2ft²) • Fed either non-organic or organic feed – Pastured poultry NEED feed or planted grains supplementation to thrive and produce (diet is only about 10% grass) • Often slower-growing, heritage breeds Types of Pastured Poultry • Broiler systems • Layer systems Broiler systems • Raise from chick to slaughter in 8-12 weeks • Usually kept in confined chicken tractors • Moved often • Often processed on site • OK allows home-processing without licensing UP TO 1000 birds/year – only allows sales to household consumers – must process at USDA-certified plant to sell across state lines, contract with stores, restaurants • Darp Processing Plant – Tahlequah, OK Layer systems • More often free-range or surrounded by electric fence & locked up at night • Need more space – Higher frequency of cannibalism/pecking in layers – Will be in production for years, not weeks • Egg-mobiles • Easiest to sell directly on-farm to consumers – OK laws governing egg sales are stricter than federal laws! Why Pastured Poultry? • Waste control • Fewer health problems – Heat stress – Cannibalism/pecking issues • Pasture improvement through use of manure • Health benefits/Tastiness of eggs & meat Pastured eggs have… • Thicker albumen (egg white) • Darker orange yolk Pastured Eggs vs.
    [Show full text]
  • American Pastured Poultry Producers Association Innovation and Hard
    Issue 53 APPPA GRIT! Fall 2009 American Pastured Poultry Producers Association Innovation and Hard Work Brings Success: Tom Delehanty By Jody Padgham It is fun to talk to Tom Wholesalers from all over the Delehanty, organic pastured southwest were clamoring poultry producer from So- for the high quality organic corro, New Mexico, about birds, which were sold in what he is thinking and major grocery chains and doing in life. He is excited natural food stores. Tom was about raising high quality challenged to develop sys- organic food for folks in his tems to manage the turn region, but also loves to around of 800-900 chickens share what he has learned per week, year round. with others. And, as a sixth- generation farmer raising However, as more of the “big poultry for over 50 years guys” got into organic poul- and in his 22nd year of rais- Tom and friends. Photo courtesy NewFarm.org try production, wholesale ing and developing a pas- prices began to drop and tured poultry model, he has learned a LOT. A man of Tom’s profit margin shrank. Organic chicken was much energy and dynamic thinking, he has concentrated wholesaling at $2.50 per pound, but selling to custom- on figuring out how to do the best job of raising poultry ers for over $4.50 per pound. “We couldn’t make it as possible and was recently willing to share some of his work at $2.50,” Tom says, “But it works well when we thoughts with us. sell direct to the customer and get the whole $4.50 price ourselves.” In the past five years Tom and family Tom farms with his wife Tracey and two children on 34 have pulled back production to about half of what it irrigated acres in the Rio Grande Valley.
    [Show full text]
  • Raising Pastured Poultry in Texas
    Raising Pastured Poultry in Texas Kevin Ellis NCAT Poultry Specialist About Me • NCAT Poultry Specialist • San Antonio, TX • Raising Poultry for 17 years • IOIA Accredited Organic Livestock Inspector • B.S. Poultry Science-Texas A&M University • Research • Judging • Extension 2 About ATTRA • The National Sustainable Agriculture Information Service • Free technical assistance for farmers and ranchers – 1-800-346-9140 – ATTRA.NCAT.org 3 Why Pastured Poultry? • Start-up costs • Time Frame • Demand • Diversification • Enhanced Animal Welfare • Fertilization benefits 4 Getting Started • Choose an enterprise • Choose a breed • Brooding • Build Shelter • Feeding • Processing • Marketing 5 Laying Hens • Want: light body breed that will do well in heat. • Rhode Island Reds, Gold Sex Link, Hy-Line Brown – Brown eggs – Good on pasture – Good production • Leghorn, California White – White eggs – Best egg layer – Can be very flighty, other behavioral problems 6 Meat Chickens • Cornish/Plymouth Rock Cross – Industry Standard – Rapid, consistent weight gain – Not very good foragers – Health problems • “Freedom Rangers” – Smaller carcass • Different body – Slower growth • 6-8 Weeks to grow out – Up to 10 for heritage breeds 7 Turkeys • Longer grow out than broilers – 18-22 weeks • Seasonal – 1 cycle per year • Very good foragers – Surprisingly tough on pasture • Very good potential profit • Heritage breeds – Taste differences 8 Picking a Hatchery • Order chicks in advance to ensure that the hatchery has the breed you want in stock. • Make sure that they are NPIP approved • Inquire about vaccinations • For laying hens, order day-old chicks rather than pullets. 9 Brooding • Poultry often arrive as day old chicks. • Need a controlled, warm environment to begin development.
    [Show full text]
  • Growing Your Range Poultry Business: an Entrepreneur's Toolbox
    Growing Your Range Poultry Business: An Entrepreneur’s Toolbox Written for Heifer International by Anne Fanatico, National Center for Appropriate Technology and David Redhage, Kerr Center for Sustainable Agriculture. With contributions by Nancy Grudens Schuck, Wayne Knoblauch, Judy Joanna Green, and Mary Saylor. October 2002 Table of Contents FOREWORD AND Foreword ....................................................... 1 Using the Toolbox .........................................2 ACKNOWLEDGEMENTS Introduction ................................................... 3 Feasibility. ..................................................... 6 This Toolbox was produced by the National Personal & Family Considerations Center for Appropriate Technology (NCAT) and Choosing an Enterprise..................... 6 and the Kerr Center for Sustainable Marketing: Will it Sell? ................................. 8 Agriculture as part of a Heifer International Production: Can it Be Done? ..................... 13 Profitability: Will it Make Money?............... 22 project to enhance the opportunities to Financial Reality: Can You Afford expand range poultry businesses. to Do It? ..................................................26 Developing a Business Plan From the The three-year project also examined the use Feasibility Study .......................................26 of mobile processing units (MPUs) for Record Keeping .......................................... 28 poultry. MPUs are an infrastructure Assistance and Resources ......................... 28 Working
    [Show full text]
  • Genetic Options for Pastured Poultry Producers: Meat-Type Chickens and Turkeys
    WHICH BIRD SHALL I RAISE? Genetic Options for Pastured Poultry Producers: Meat-type Chickens and Turkeys By Skip Polson and Anne Fanatico December 2002 Introduction Most pastured poultry producers in North America use the same Cornish- and-White-Rock-cross broiler genetics that are used by the conventional poultry industry. These are the standard meat birds used by the industry, and essentially all broilers produced commercially in North America are Cornish crosses. This has been true since meat became a primary focus for chicken genetics in the 1940s and confinement-rearing became the standard form of production for the US poultry industry. A 1950s contest called The Chicken of Tomorrow encouraged the development of meatier birds. Cornish crosses became the birds-of-choice at that time. Since then they have been continuously genetically refined by the conventional poultry industry for rapid growth, efficient feed conversion, broad-breastedness, limited feathering (for ease of plucking), and other traits considered appropriate for rearing very large numbers of birds in confinement conditions. However, most pastured poultry producers today use the Cornish crosses because they are readily available, not because they are ideally suited to rearing on pasture. Many of the characteristics which make the Cornish cross broiler strains good for industrial confinement production models are not well-suited for alternative production systems. Many pastured poultry producers perceive the Cornish crosses to have weak legs, excessive rates of heart attacks, a high incidence of congestive heart failure (ascites), poor foraging ability, poor heat tolerance, and other liabilities when raised on pasture. While most producers value their rapid growth rate, others find it unnaturally fast.
    [Show full text]
  • Operational Challenges and Opportunities in Pastured Poultry Operations in the United States
    Research Note Operational challenges and opportunities in pastured poultry operations in the United States C. Elkhoraibi,∗ M. Pitesky,∗ N. Dailey,† and D. Niemeier†,1 ∗UC Davis School of Veterinary Medicine, Department of Population Health and Reproduction, University of California, Davis 95616; and †UC Davis College of Engineering, Department of Civil & Environmental Engineering, One Shields Ave, Davis, CA 95616 ABSTRACT As pastured poultry production has predation (52%), followed by “other” (32%). However, gained increased popularity in the United States in re- predation was not selected as the most important chal- cent years, there is a growing need for research and out- lenge by the majority of respondents. Sixty-four per- reach efforts aimed at this sector of poultry production. cent of participants instead mentioned providing ade- In order to get familiarized with American pastured quate feed at reasonable cost as the major challenge in poultry producers, we conducted an online question- raising poultry on pasture, followed again by “other” naire aimed primarily at evaluating what operational (52%) and lack of processing facilities for small num- challenges are faced by producers and what educational bers of birds (40%). Finally, the topics considered by opportunities should be initiated by researchers. Re- respondents as the most helpful to learn more about sults showed that pastured poultry farms largely vary in were how to improve egg production rate and/or feed total number of acres farmed and total number of birds conversion ratio (67%), followed by how to improve pas- kept. The vast majority of farms (96%) rotate their ture condition and optimum vegetative cover all year flocks on pasture and include livestock species (78%) in round (62%).
    [Show full text]