Effects of ground robot manipulation on hen floor egg reduction, production performance, stress response, bone quality, and behavior

Reducing floor eggs in cage-free (CF) housing systems is among primary concerns for egg producers. The objective of this research was to evaluate the effects of ground robot manipulation on reduction of floor eggs. In addition, the effects of ground robot manipulation on production performance, stre...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:PloS one 2022-04, Vol.17 (4), p.e0267568-e0267568
Hauptverfasser: Li, Guoming, Hui, Xue, Zhao, Yang, Zhai, Wei, Purswell, Joseph L, Porter, Zach, Poudel, Sabin, Jia, Linan, Zhang, Bo, Chesser, Gary D
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page e0267568
container_issue 4
container_start_page e0267568
container_title PloS one
container_volume 17
creator Li, Guoming
Hui, Xue
Zhao, Yang
Zhai, Wei
Purswell, Joseph L
Porter, Zach
Poudel, Sabin
Jia, Linan
Zhang, Bo
Chesser, Gary D
description Reducing floor eggs in cage-free (CF) housing systems is among primary concerns for egg producers. The objective of this research was to evaluate the effects of ground robot manipulation on reduction of floor eggs. In addition, the effects of ground robot manipulation on production performance, stress response, bone quality, and behavior were also investigated. Two successive flocks of 180 Hy-Line Brown hens at 34 weeks of this age were used. The treatment structure for each flock consisted of six pens with three treatments (without robot running, with one-week robot running, and with two-weeks robot running), resulting in two replicates per treatment per flock and four replicates per treatment with two flocks. Two phases were involved with each flock. Phase 1 (weeks 35-38) mimicked the normal scenario, and phase 2 (weeks 40-43) mimicked a scenario after inadvertent restriction to nest box access. Results indicate that the floor egg reduction rate in the first two weeks of phase 1 was 11.0% without the robot treatment, 18.9% with the one-week robot treatment, and 34.0% with the two-week robot treatment. The effect of robot operation on floor egg production was not significant when the two phases of data were included in the analysis. Other tested parameters were similar among the treatments, including hen-day egg production, feed intake, feed conversion ratio, live body weight, plasma corticosterone concentration, bone breaking force, ash percentage, and time spent in nest boxes. In conclusion, ground robot operation in CF settings may help to reduce floor egg production to a certain degree for a short period right after being introduced. Additionally, robot operation does not seem to negatively affect hen production performance and well-being.
doi_str_mv 10.1371/journal.pone.0267568
format Article
fullrecord <record><control><sourceid>gale_plos_</sourceid><recordid>TN_cdi_plos_journals_2653544407</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A701256923</galeid><doaj_id>oai_doaj_org_article_9a2858ed17304af3b29389e8646b004e</doaj_id><sourcerecordid>A701256923</sourcerecordid><originalsourceid>FETCH-LOGICAL-c692t-2940946db2c9aaaa71258a96cbb22ae4ca4c4f1ebf61bbc394d0d0bad46c60f23</originalsourceid><addsrcrecordid>eNqNk11r2zAUhs3YWLtu_2BsgsLYIMlkSZbtm0Ep3RYoFPZ1KyT5yFFwrFSSy3q_Hz6lcUs8ejHbYCE95z1Hr3Sy7HWOFzkt849rN_hedout62GBCS8LXj3JjvOakjknmD49GB9lL0JYY1zQivPn2REtWEEKjI-zPxfGgI4BOYNa74a-Qd4pF9FG9nY7dDJa16P0raBHpnPOI2hb5KEZ9G5phrbejWO0BW-cT5EaZihEDyEkMqQKQ5pQqVB0PcjOxtsZkimTgpW8sc6_zJ4Z2QV4Nf5Psp-fL36cf51fXn1Znp9dzjWvSZyTmuGa8UYRXcv0lDkpKllzrRQhEpiWTDOTgzI8V0rTmjW4wUo2jGuODaEn2du97rZzQYwGBkF4kQxhDJeJWO6Jxsm12Hq7kf5WOGnF3YTzrZA-Wt2BqCWpigqavKSYSUMVqWlVQ8UZVxgzSFqfxmyD2kCjoY9edhPR6UpvV6J1N6LGlNCySALvRwHvrgcIUWxs0NB1sgc33NXNUtICs4Se_oM-vruRamXagO2NS3n1TlSclTi5mWymiVo8QqW3gY3V6RCNTfOTgA-TgMRE-B1bOYQglt-__T979WvKvjtgVyC7uAquG3Z3LUxBtge1dyF4MA8m51jsmuXeDbFrFjE2Swp7c3hAD0H33UH_AlQ3EQ0</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2653544407</pqid></control><display><type>article</type><title>Effects of ground robot manipulation on hen floor egg reduction, production performance, stress response, bone quality, and behavior</title><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Public Library of Science (PLoS) Journals Open Access</source><source>PubMed Central</source><source>Free Full-Text Journals in Chemistry</source><creator>Li, Guoming ; Hui, Xue ; Zhao, Yang ; Zhai, Wei ; Purswell, Joseph L ; Porter, Zach ; Poudel, Sabin ; Jia, Linan ; Zhang, Bo ; Chesser, Gary D</creator><contributor>Balasubramanian, Balamuralikrishnan</contributor><creatorcontrib>Li, Guoming ; Hui, Xue ; Zhao, Yang ; Zhai, Wei ; Purswell, Joseph L ; Porter, Zach ; Poudel, Sabin ; Jia, Linan ; Zhang, Bo ; Chesser, Gary D ; Balasubramanian, Balamuralikrishnan</creatorcontrib><description>Reducing floor eggs in cage-free (CF) housing systems is among primary concerns for egg producers. The objective of this research was to evaluate the effects of ground robot manipulation on reduction of floor eggs. In addition, the effects of ground robot manipulation on production performance, stress response, bone quality, and behavior were also investigated. Two successive flocks of 180 Hy-Line Brown hens at 34 weeks of this age were used. The treatment structure for each flock consisted of six pens with three treatments (without robot running, with one-week robot running, and with two-weeks robot running), resulting in two replicates per treatment per flock and four replicates per treatment with two flocks. Two phases were involved with each flock. Phase 1 (weeks 35-38) mimicked the normal scenario, and phase 2 (weeks 40-43) mimicked a scenario after inadvertent restriction to nest box access. Results indicate that the floor egg reduction rate in the first two weeks of phase 1 was 11.0% without the robot treatment, 18.9% with the one-week robot treatment, and 34.0% with the two-week robot treatment. The effect of robot operation on floor egg production was not significant when the two phases of data were included in the analysis. Other tested parameters were similar among the treatments, including hen-day egg production, feed intake, feed conversion ratio, live body weight, plasma corticosterone concentration, bone breaking force, ash percentage, and time spent in nest boxes. In conclusion, ground robot operation in CF settings may help to reduce floor egg production to a certain degree for a short period right after being introduced. Additionally, robot operation does not seem to negatively affect hen production performance and well-being.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0267568</identifier><identifier>PMID: 35452500</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Agriculture ; Animal welfare ; Behavior ; Bioengineering ; Biology and Life Sciences ; Birds ; Body weight ; Boxes ; Conversion ratio ; Corticosterone ; Dermatitis ; Egg industry ; Egg production ; Eggs ; Engineering ; Engineering and Technology ; Evaluation ; Farms ; Feed conversion ; Housing ; Management ; Medicine and Health Sciences ; Methods ; Nest boxes ; Poultry ; Radio frequency identification ; Robots ; Running ; Social Sciences</subject><ispartof>PloS one, 2022-04, Vol.17 (4), p.e0267568-e0267568</ispartof><rights>COPYRIGHT 2022 Public Library of Science</rights><rights>This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication: https://creativecommons.org/publicdomain/zero/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-2940946db2c9aaaa71258a96cbb22ae4ca4c4f1ebf61bbc394d0d0bad46c60f23</citedby><cites>FETCH-LOGICAL-c692t-2940946db2c9aaaa71258a96cbb22ae4ca4c4f1ebf61bbc394d0d0bad46c60f23</cites><orcidid>0000-0001-7624-8051</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9032375/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9032375/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,315,728,781,785,865,886,2103,2929,23871,27929,27930,53796,53798</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35452500$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Balasubramanian, Balamuralikrishnan</contributor><creatorcontrib>Li, Guoming</creatorcontrib><creatorcontrib>Hui, Xue</creatorcontrib><creatorcontrib>Zhao, Yang</creatorcontrib><creatorcontrib>Zhai, Wei</creatorcontrib><creatorcontrib>Purswell, Joseph L</creatorcontrib><creatorcontrib>Porter, Zach</creatorcontrib><creatorcontrib>Poudel, Sabin</creatorcontrib><creatorcontrib>Jia, Linan</creatorcontrib><creatorcontrib>Zhang, Bo</creatorcontrib><creatorcontrib>Chesser, Gary D</creatorcontrib><title>Effects of ground robot manipulation on hen floor egg reduction, production performance, stress response, bone quality, and behavior</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Reducing floor eggs in cage-free (CF) housing systems is among primary concerns for egg producers. The objective of this research was to evaluate the effects of ground robot manipulation on reduction of floor eggs. In addition, the effects of ground robot manipulation on production performance, stress response, bone quality, and behavior were also investigated. Two successive flocks of 180 Hy-Line Brown hens at 34 weeks of this age were used. The treatment structure for each flock consisted of six pens with three treatments (without robot running, with one-week robot running, and with two-weeks robot running), resulting in two replicates per treatment per flock and four replicates per treatment with two flocks. Two phases were involved with each flock. Phase 1 (weeks 35-38) mimicked the normal scenario, and phase 2 (weeks 40-43) mimicked a scenario after inadvertent restriction to nest box access. Results indicate that the floor egg reduction rate in the first two weeks of phase 1 was 11.0% without the robot treatment, 18.9% with the one-week robot treatment, and 34.0% with the two-week robot treatment. The effect of robot operation on floor egg production was not significant when the two phases of data were included in the analysis. Other tested parameters were similar among the treatments, including hen-day egg production, feed intake, feed conversion ratio, live body weight, plasma corticosterone concentration, bone breaking force, ash percentage, and time spent in nest boxes. In conclusion, ground robot operation in CF settings may help to reduce floor egg production to a certain degree for a short period right after being introduced. Additionally, robot operation does not seem to negatively affect hen production performance and well-being.</description><subject>Agriculture</subject><subject>Animal welfare</subject><subject>Behavior</subject><subject>Bioengineering</subject><subject>Biology and Life Sciences</subject><subject>Birds</subject><subject>Body weight</subject><subject>Boxes</subject><subject>Conversion ratio</subject><subject>Corticosterone</subject><subject>Dermatitis</subject><subject>Egg industry</subject><subject>Egg production</subject><subject>Eggs</subject><subject>Engineering</subject><subject>Engineering and Technology</subject><subject>Evaluation</subject><subject>Farms</subject><subject>Feed conversion</subject><subject>Housing</subject><subject>Management</subject><subject>Medicine and Health Sciences</subject><subject>Methods</subject><subject>Nest boxes</subject><subject>Poultry</subject><subject>Radio frequency identification</subject><subject>Robots</subject><subject>Running</subject><subject>Social Sciences</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNqNk11r2zAUhs3YWLtu_2BsgsLYIMlkSZbtm0Ep3RYoFPZ1KyT5yFFwrFSSy3q_Hz6lcUs8ejHbYCE95z1Hr3Sy7HWOFzkt849rN_hedout62GBCS8LXj3JjvOakjknmD49GB9lL0JYY1zQivPn2REtWEEKjI-zPxfGgI4BOYNa74a-Qd4pF9FG9nY7dDJa16P0raBHpnPOI2hb5KEZ9G5phrbejWO0BW-cT5EaZihEDyEkMqQKQ5pQqVB0PcjOxtsZkimTgpW8sc6_zJ4Z2QV4Nf5Psp-fL36cf51fXn1Znp9dzjWvSZyTmuGa8UYRXcv0lDkpKllzrRQhEpiWTDOTgzI8V0rTmjW4wUo2jGuODaEn2du97rZzQYwGBkF4kQxhDJeJWO6Jxsm12Hq7kf5WOGnF3YTzrZA-Wt2BqCWpigqavKSYSUMVqWlVQ8UZVxgzSFqfxmyD2kCjoY9edhPR6UpvV6J1N6LGlNCySALvRwHvrgcIUWxs0NB1sgc33NXNUtICs4Se_oM-vruRamXagO2NS3n1TlSclTi5mWymiVo8QqW3gY3V6RCNTfOTgA-TgMRE-B1bOYQglt-__T979WvKvjtgVyC7uAquG3Z3LUxBtge1dyF4MA8m51jsmuXeDbFrFjE2Swp7c3hAD0H33UH_AlQ3EQ0</recordid><startdate>20220422</startdate><enddate>20220422</enddate><creator>Li, Guoming</creator><creator>Hui, Xue</creator><creator>Zhao, Yang</creator><creator>Zhai, Wei</creator><creator>Purswell, Joseph L</creator><creator>Porter, Zach</creator><creator>Poudel, Sabin</creator><creator>Jia, Linan</creator><creator>Zhang, Bo</creator><creator>Chesser, Gary D</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-7624-8051</orcidid></search><sort><creationdate>20220422</creationdate><title>Effects of ground robot manipulation on hen floor egg reduction, production performance, stress response, bone quality, and behavior</title><author>Li, Guoming ; Hui, Xue ; Zhao, Yang ; Zhai, Wei ; Purswell, Joseph L ; Porter, Zach ; Poudel, Sabin ; Jia, Linan ; Zhang, Bo ; Chesser, Gary D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-2940946db2c9aaaa71258a96cbb22ae4ca4c4f1ebf61bbc394d0d0bad46c60f23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Agriculture</topic><topic>Animal welfare</topic><topic>Behavior</topic><topic>Bioengineering</topic><topic>Biology and Life Sciences</topic><topic>Birds</topic><topic>Body weight</topic><topic>Boxes</topic><topic>Conversion ratio</topic><topic>Corticosterone</topic><topic>Dermatitis</topic><topic>Egg industry</topic><topic>Egg production</topic><topic>Eggs</topic><topic>Engineering</topic><topic>Engineering and Technology</topic><topic>Evaluation</topic><topic>Farms</topic><topic>Feed conversion</topic><topic>Housing</topic><topic>Management</topic><topic>Medicine and Health Sciences</topic><topic>Methods</topic><topic>Nest boxes</topic><topic>Poultry</topic><topic>Radio frequency identification</topic><topic>Robots</topic><topic>Running</topic><topic>Social Sciences</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Guoming</creatorcontrib><creatorcontrib>Hui, Xue</creatorcontrib><creatorcontrib>Zhao, Yang</creatorcontrib><creatorcontrib>Zhai, Wei</creatorcontrib><creatorcontrib>Purswell, Joseph L</creatorcontrib><creatorcontrib>Porter, Zach</creatorcontrib><creatorcontrib>Poudel, Sabin</creatorcontrib><creatorcontrib>Jia, Linan</creatorcontrib><creatorcontrib>Zhang, Bo</creatorcontrib><creatorcontrib>Chesser, Gary D</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Gale In Context: Opposing Viewpoints</collection><collection>Gale In Context: Science</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies &amp; Aerospace Collection</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Advanced Technologies &amp; Aerospace Database</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Guoming</au><au>Hui, Xue</au><au>Zhao, Yang</au><au>Zhai, Wei</au><au>Purswell, Joseph L</au><au>Porter, Zach</au><au>Poudel, Sabin</au><au>Jia, Linan</au><au>Zhang, Bo</au><au>Chesser, Gary D</au><au>Balasubramanian, Balamuralikrishnan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of ground robot manipulation on hen floor egg reduction, production performance, stress response, bone quality, and behavior</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2022-04-22</date><risdate>2022</risdate><volume>17</volume><issue>4</issue><spage>e0267568</spage><epage>e0267568</epage><pages>e0267568-e0267568</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Reducing floor eggs in cage-free (CF) housing systems is among primary concerns for egg producers. The objective of this research was to evaluate the effects of ground robot manipulation on reduction of floor eggs. In addition, the effects of ground robot manipulation on production performance, stress response, bone quality, and behavior were also investigated. Two successive flocks of 180 Hy-Line Brown hens at 34 weeks of this age were used. The treatment structure for each flock consisted of six pens with three treatments (without robot running, with one-week robot running, and with two-weeks robot running), resulting in two replicates per treatment per flock and four replicates per treatment with two flocks. Two phases were involved with each flock. Phase 1 (weeks 35-38) mimicked the normal scenario, and phase 2 (weeks 40-43) mimicked a scenario after inadvertent restriction to nest box access. Results indicate that the floor egg reduction rate in the first two weeks of phase 1 was 11.0% without the robot treatment, 18.9% with the one-week robot treatment, and 34.0% with the two-week robot treatment. The effect of robot operation on floor egg production was not significant when the two phases of data were included in the analysis. Other tested parameters were similar among the treatments, including hen-day egg production, feed intake, feed conversion ratio, live body weight, plasma corticosterone concentration, bone breaking force, ash percentage, and time spent in nest boxes. In conclusion, ground robot operation in CF settings may help to reduce floor egg production to a certain degree for a short period right after being introduced. Additionally, robot operation does not seem to negatively affect hen production performance and well-being.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>35452500</pmid><doi>10.1371/journal.pone.0267568</doi><tpages>e0267568</tpages><orcidid>https://orcid.org/0000-0001-7624-8051</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1932-6203
ispartof PloS one, 2022-04, Vol.17 (4), p.e0267568-e0267568
issn 1932-6203
1932-6203
language eng
recordid cdi_plos_journals_2653544407
source DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Public Library of Science (PLoS) Journals Open Access; PubMed Central; Free Full-Text Journals in Chemistry
subjects Agriculture
Animal welfare
Behavior
Bioengineering
Biology and Life Sciences
Birds
Body weight
Boxes
Conversion ratio
Corticosterone
Dermatitis
Egg industry
Egg production
Eggs
Engineering
Engineering and Technology
Evaluation
Farms
Feed conversion
Housing
Management
Medicine and Health Sciences
Methods
Nest boxes
Poultry
Radio frequency identification
Robots
Running
Social Sciences
title Effects of ground robot manipulation on hen floor egg reduction, production performance, stress response, bone quality, and behavior
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-12T22%3A45%3A04IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Effects%20of%20ground%20robot%20manipulation%20on%20hen%20floor%20egg%20reduction,%20production%20performance,%20stress%20response,%20bone%20quality,%20and%20behavior&rft.jtitle=PloS%20one&rft.au=Li,%20Guoming&rft.date=2022-04-22&rft.volume=17&rft.issue=4&rft.spage=e0267568&rft.epage=e0267568&rft.pages=e0267568-e0267568&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0267568&rft_dat=%3Cgale_plos_%3EA701256923%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2653544407&rft_id=info:pmid/35452500&rft_galeid=A701256923&rft_doaj_id=oai_doaj_org_article_9a2858ed17304af3b29389e8646b004e&rfr_iscdi=true