[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-137486-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-137486-en":131},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","disease-prevention-in-commercial-poultry","Disease Prevention in Commercial Poultry","","Disease prevention in commercial poultry relies on active enforcement of a comprehensive biosecurity program and maintaining a fully functional immune system. Biosecurity is framed as informed common sense grounded in understanding disease transmission principles. The material explains why biosecurity-focused control is preferred to sole reliance on vaccines and antibiotics, highlights challenges in gaining producer support, and describes gradual production improvements. It details transmission routes, noting that contaminated people, equipment, and vehicles dominate spread, while airborne spread is generally less significant. It also covers organism stability and the role of downtime in reducing viable pathogens.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/healthcare/","Healthcare",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/disease-prevention-in-commercial-poultry/137486/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/disease-prevention-in-commercial-poultry/137486.png","ImageObject",300,407,{"name":42,"@type":43},"Patrick","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-23","2026-08-22",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",11,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What is the core goal of a biosecurity program for commercial poultry?","Question",{"text":63,"@type":64},"The objective is to design farm practices so diseases are not introduced and, if organisms are present, they are eliminated or reduced to insignificance. Effective biosecurity also reduces the probability of outbreaks.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How do poultry diseases most commonly spread between farms?",{"text":68,"@type":64},"Studies cited in the document indicate that poultry diseases spread about 90% of the time through contaminated people, poultry equipment, and farm vehicles. It also notes exceptions such as direct ovarian transmission, eggshell penetration, and hatcher contamination.",{"name":70,"@type":61,"acceptedAnswer":71},"Why is downtime used, and how effective is it?",{"text":72,"@type":64},"Downtime reduces the level of disease organisms by leaving premises without chickens. Effectiveness depends on organism stability: fragile pathogens may be eliminated with shorter down periods (e.g., around a week), while more resistant organisms require different management.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},137486,1787409617,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,106,110,115,120,123,127],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},5,"Comic",60,"comic",{"id":102,"doc_module":4,"doc_module_name":25,"category_name":103,"show_sort_weight":104,"slug":105},6,"Technology",50,"technology",{"id":107,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":108,"slug":109},7,40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":124,"doc_module":4,"doc_module_name":25,"category_name":125,"show_sort_weight":124,"slug":126},10,"Lifestyle","lifestyle",{"id":128,"doc_module":4,"doc_module_name":25,"category_name":129,"show_sort_weight":97,"slug":130},19,"General","general",{"code":4,"msg":82,"data":132},{"doc_id":79,"user_id":133,"nickname":42,"user_avatar":134,"doc_module":4,"category_id":107,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":97,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":80,"read_time":144},549758146520,"https://ap-avatar.wpscdn.com/avatar/80002397d8c0411e94?_k=1775819394049821470","CIR1079  \nDisease Prevention in Commercial Poultry 1  \nGary D. Butcher and Richard D. Miles2  \nPrevention of disease in commercial poultry requires the producer to actively enforce an effective/comprehensive biosecurity program and to maintain an intact and functional immune system in the chicken.  \nBiosecurity for Disease Control/ Prevention  \nBiosecurity is a commonly used poultry industry term that can be defined simply as “informed common sense.” That is, one develops a basic understanding of the principles of disease transmission and combines this knowledge with good old “common sense”. The objective would be to have a program design such that the diseases are not brought onto the poultry farm and poultry are not brought to diseases. An effective biosecurity program allows one to keep diseases off poultry farms; or if disease organisms are present, such a program would eliminate them or at least reduce them to a level of little or no significance.  \nPoultry veterinarians have been attempting to control diseases by improving biosecurity practices. This emphasis on controlling diseases by biosecurity practices rather than relying on vaccines and/or antibiotics has resulted fromchanges in the industry itself. As poultry farms became larger and more intensive, disease outbreaks became more costly; as the lifespan of broilers decreased because of improved genetics and feedings, birds did not have sufficient time to recover from diseases and make it to processing.  \nVeterinarians often find it difficult to convince many farm managers ofthe importance of biosecurity programs. The lack of support for these disease PREVENTION programs, which many farm managers may see as costly, time consuming, and just more unnecessary work, is probably due to the failure of previous programs. However, the failure of previous efforts was likely due to poor design and improper implementation of the programs. A comprehensive biosecurity program cannot eliminate the possibility of disease, but it can reduce the probability. In addition, often it is not possible to demonstrate direct benefits from a biosecurity program from just one flock. Improved production usually occurs gradually over several flocks.  \nDisease Transmission  \nUnderstanding how diseases are transmitted is an important factor in developing a biosecurity program. Studies have consistently demonstrated that approximately 90 percent of the time poultry diseases spread from one farm to another by contaminated people, poultry equipment, and farm vehicles. Exceptions to this include direct ovarian transmission (example: Mycoplasma gallisepticum), eggshell penetration (example: Salmonella) and hatcher contamination (example: Aspergillus sp.) . Airborne transmission of poultry diseases is not considered to be an important means of disease transmission. For example, Mycoplasma gallisepticum is horizontally transmitted by direct contact between carriers and susceptible chickens, and by airborne dust or over droplets very short distances (such as between  \n1. This document is CIR1079, one of a series of the Veterinary Medicine-Large Animal Clinical Sciences Department, UF/IFAS Extension. Original publication date June 1993. Revised May 1996. Reviewed December 2018. Visit the EDIS website at [https://edis.ifas.ufl.edu](https://edis.ifas.ufl.edu for the currently supported)[ for the currently supported](https://edis.ifas.ufl.edu for the currently supported)[ ](https://edis.ifas.ufl.edu for the currently supported)[version of this publication.](version of this publication.)  \n2. Gary D. Butcher, professor and poultry veterinarian; and Richard D. Miles, professor and poultry nutritionist, Veterinary Medicine-Large Animal Clinical Sciences Department; UF/IFAS Extension, Gainesville, FL 32611.  \nThe Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that","cbCaikGsee2Vza1i","https://ap.wps.com/l/cbCaikGsee2Vza1i","pdf",505580,"English","# Biosecurity for Disease Control and Prevention\n## Why Biosecurity Matters in Commercial Operations\n# Disease Transmission\n## Key Routes of Spread\n## Notable Exceptions\n# Lifespan of Disease Organisms\n## Environmental Viability and Downtime","[{\"question\":\"What is the core goal of a biosecurity program for commercial poultry?\",\"answer\":\"The objective is to design farm practices so diseases are not introduced and, if organisms are present, they are eliminated or reduced to insignificance. Effective biosecurity also reduces the probability of outbreaks.\"},{\"question\":\"How do poultry diseases most commonly spread between farms?\",\"answer\":\"Studies cited in the document indicate that poultry diseases spread about 90% of the time through contaminated people, poultry equipment, and farm vehicles. It also notes exceptions such as direct ovarian transmission, eggshell penetration, and hatcher contamination.\"},{\"question\":\"Why is downtime used, and how effective is it?\",\"answer\":\"Downtime reduces the level of disease organisms by leaving premises without chickens. Effectiveness depends on organism stability: fragile pathogens may be eliminated with shorter down periods (e.g., around a week), while more resistant organisms require different management.\"}]","Disease Prevention in Commercial Poultry | PDF",13]