Evaluation of the Efficacy of Three Direct Fed Microbial Cocktails To Reduce Fecal Shedding of Escherichia coli O157:H7 in Naturally Colonized Cattle and Fecal Shedding and Peripheral Lymph Node Carriage of Salmonella in Experimentally Infected Cattle
Two experiments were conducted to evaluate the feeding of direct fed microbials (DFMs) on fecal shedding of O157:H7 in naturally infected cattle (experiment I) and on in the feces and peripheral lymph nodes (PLNs) of experimentally infected cattle (experiment II). Thirty cattle, 10 per treatment, we...
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| description | Two experiments were conducted to evaluate the feeding of direct fed microbials (DFMs) on fecal shedding of
O157:H7 in naturally infected cattle (experiment I) and on
in the feces and peripheral lymph nodes (PLNs) of experimentally infected cattle (experiment II). Thirty cattle, 10 per treatment, were used in each experiment. Treatments in experiment I consisted of a control (lactose carrier only); DFM1, a 1:1 ratio of
and
; and DFM2, a 1:1 ratio of
and
. In Experiment II, DFM1 was replaced with DFM3, a 1:2 ratio of
and other
strains. Additives were mixed in water and applied as a top-dressing to each pen's daily ration for 50 days. Approximately half-way through each experiment, the DFM concentration was doubled for the remainder of the study. Fecal samples were collected throughout experiment I and cultured for
O157:H7. Cattle in experiment II were inoculated intradermally with
Montevideo on days 32, 37, and 42 and then necropsied on days 49 and 50 (five cattle per treatment on each day). Innate immune function was assessed on days 29, 49, and 50. In experiment I, fecal concentration and prevalence of
O157:H7 were not different (
> 0.10) nor was there an effect (
= 0.95) on the percentage of super shedders (cattle shedding ≥3.0 log CFU/g of feces). In experiment II, no treatment differences (
> 0.05) were observed for
in the PLNs except for the inguinal nodes, which had a significantly lower
prevalence in DFM-supplemented cattle than in the controls. Immune function, as measured by monocyte nitric oxide production and neutrophil oxidative burst, was decreased (
< 0.05) in the DFM treatment groups. Although results of this research indicate little to no effect of these DFMs on
O157:H7 or
in cattle, an increase in the duration of administration to that similar to what is used for commercial cattle might elicit treatment differences. |
| doi_str_mv | 10.4315/0362-028X.JFP-19-208 |
| format | Article |
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O157:H7 in naturally infected cattle (experiment I) and on
in the feces and peripheral lymph nodes (PLNs) of experimentally infected cattle (experiment II). Thirty cattle, 10 per treatment, were used in each experiment. Treatments in experiment I consisted of a control (lactose carrier only); DFM1, a 1:1 ratio of
and
; and DFM2, a 1:1 ratio of
and
. In Experiment II, DFM1 was replaced with DFM3, a 1:2 ratio of
and other
strains. Additives were mixed in water and applied as a top-dressing to each pen's daily ration for 50 days. Approximately half-way through each experiment, the DFM concentration was doubled for the remainder of the study. Fecal samples were collected throughout experiment I and cultured for
O157:H7. Cattle in experiment II were inoculated intradermally with
Montevideo on days 32, 37, and 42 and then necropsied on days 49 and 50 (five cattle per treatment on each day). Innate immune function was assessed on days 29, 49, and 50. In experiment I, fecal concentration and prevalence of
O157:H7 were not different (
> 0.10) nor was there an effect (
= 0.95) on the percentage of super shedders (cattle shedding ≥3.0 log CFU/g of feces). In experiment II, no treatment differences (
> 0.05) were observed for
in the PLNs except for the inguinal nodes, which had a significantly lower
prevalence in DFM-supplemented cattle than in the controls. Immune function, as measured by monocyte nitric oxide production and neutrophil oxidative burst, was decreased (
< 0.05) in the DFM treatment groups. Although results of this research indicate little to no effect of these DFMs on
O157:H7 or
in cattle, an increase in the duration of administration to that similar to what is used for commercial cattle might elicit treatment differences.</description><identifier>ISSN: 0362-028X</identifier><identifier>EISSN: 1944-9097</identifier><identifier>DOI: 10.4315/0362-028X.JFP-19-208</identifier><identifier>PMID: 31809195</identifier><language>eng</language><publisher>United States: Elsevier Limited</publisher><subject>Additives ; Animal Feed ; Animals ; Anti-Infective Agents - administration & dosage ; Bacterial Shedding ; Cattle ; Cattle Diseases - drug therapy ; Cattle Diseases - microbiology ; Colony Count, Microbial ; E coli ; Escherichia coli ; Escherichia coli Infections - drug therapy ; Escherichia coli Infections - veterinary ; Escherichia coli O157 ; Evaluation ; Experiments ; Feces ; Feces - microbiology ; Feeds ; Food safety ; Immune response ; Laboratories ; Lactobacillus ; Lactose ; Lymph nodes ; Lymph Nodes - microbiology ; Lymphatic system ; Microorganisms ; Monocytes ; Nitric oxide ; Pathogens ; Product recalls ; Salmonella ; Salmonella Infections, Animal - drug therapy ; Shedding ; Vaccines</subject><ispartof>Journal of food protection, 2020-01, Vol.83 (1), p.28-36</ispartof><rights>Copyright Allen Press Inc. Jan 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c381t-e043ac9acbfaf150f264911713b96839932ca2aa75057d1a75ffe1d5681491813</citedby><cites>FETCH-LOGICAL-c381t-e043ac9acbfaf150f264911713b96839932ca2aa75057d1a75ffe1d5681491813</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2348844506?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,27922,27923,64383,64385,64387,72239</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31809195$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Brown, T R</creatorcontrib><creatorcontrib>Edrington, T S</creatorcontrib><creatorcontrib>Genovese, K J</creatorcontrib><creatorcontrib>He, H L</creatorcontrib><creatorcontrib>Anderson, R C</creatorcontrib><creatorcontrib>Nisbet, D J</creatorcontrib><title>Evaluation of the Efficacy of Three Direct Fed Microbial Cocktails To Reduce Fecal Shedding of Escherichia coli O157:H7 in Naturally Colonized Cattle and Fecal Shedding and Peripheral Lymph Node Carriage of Salmonella in Experimentally Infected Cattle</title><title>Journal of food protection</title><addtitle>J Food Prot</addtitle><description>Two experiments were conducted to evaluate the feeding of direct fed microbials (DFMs) on fecal shedding of
O157:H7 in naturally infected cattle (experiment I) and on
in the feces and peripheral lymph nodes (PLNs) of experimentally infected cattle (experiment II). Thirty cattle, 10 per treatment, were used in each experiment. Treatments in experiment I consisted of a control (lactose carrier only); DFM1, a 1:1 ratio of
and
; and DFM2, a 1:1 ratio of
and
. In Experiment II, DFM1 was replaced with DFM3, a 1:2 ratio of
and other
strains. Additives were mixed in water and applied as a top-dressing to each pen's daily ration for 50 days. Approximately half-way through each experiment, the DFM concentration was doubled for the remainder of the study. Fecal samples were collected throughout experiment I and cultured for
O157:H7. Cattle in experiment II were inoculated intradermally with
Montevideo on days 32, 37, and 42 and then necropsied on days 49 and 50 (five cattle per treatment on each day). Innate immune function was assessed on days 29, 49, and 50. In experiment I, fecal concentration and prevalence of
O157:H7 were not different (
> 0.10) nor was there an effect (
= 0.95) on the percentage of super shedders (cattle shedding ≥3.0 log CFU/g of feces). In experiment II, no treatment differences (
> 0.05) were observed for
in the PLNs except for the inguinal nodes, which had a significantly lower
prevalence in DFM-supplemented cattle than in the controls. Immune function, as measured by monocyte nitric oxide production and neutrophil oxidative burst, was decreased (
< 0.05) in the DFM treatment groups. Although results of this research indicate little to no effect of these DFMs on
O157:H7 or
in cattle, an increase in the duration of administration to that similar to what is used for commercial cattle might elicit treatment differences.</description><subject>Additives</subject><subject>Animal Feed</subject><subject>Animals</subject><subject>Anti-Infective Agents - administration & dosage</subject><subject>Bacterial Shedding</subject><subject>Cattle</subject><subject>Cattle Diseases - drug therapy</subject><subject>Cattle Diseases - microbiology</subject><subject>Colony Count, Microbial</subject><subject>E coli</subject><subject>Escherichia coli</subject><subject>Escherichia coli Infections - drug therapy</subject><subject>Escherichia coli Infections - veterinary</subject><subject>Escherichia coli O157</subject><subject>Evaluation</subject><subject>Experiments</subject><subject>Feces</subject><subject>Feces - microbiology</subject><subject>Feeds</subject><subject>Food safety</subject><subject>Immune response</subject><subject>Laboratories</subject><subject>Lactobacillus</subject><subject>Lactose</subject><subject>Lymph nodes</subject><subject>Lymph Nodes - microbiology</subject><subject>Lymphatic system</subject><subject>Microorganisms</subject><subject>Monocytes</subject><subject>Nitric oxide</subject><subject>Pathogens</subject><subject>Product recalls</subject><subject>Salmonella</subject><subject>Salmonella Infections, Animal - drug therapy</subject><subject>Shedding</subject><subject>Vaccines</subject><issn>0362-028X</issn><issn>1944-9097</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpdUktv00AQthCIhsI_QGglLlxc9uHXckMhoUXpQzRI3KzJerbesvGGtY0If50LY9rm0NNoZ7_HjOZLkteCn2RK5O-5KmTKZfX95MvyKhU6lbx6ksyEzrJUc10-TWYHyFHyou9vOedSy-J5cqRExbXQ-Sz5u_gFfoTBhY4Fy4YW2cJaZ8Dsp_e6jYjsk4toBrbEhp07E8PGgWfzYH4M4HzP1oF9xWY0SAhDP9ctNo3rbiaBRW9ajM60DpgJ3rFLkZcfTkvmOnYBwxjB-z1p-dC5P6Q_h2HwyKBrHotNrSuS2pEe9Vf77a5lF6FB4sTo4AYnv2vw29Ch9zA5LH7viLHFbvhvc9ZZ2uPg8jJ5ZsH3-Oq-Hifflov1_DRdXX4-m39cpUZVYkiRZwqMBrOxYEXOrSwyLUQp1EYXldJaSQMSoMx5XjaCqrUomryoBOEqoY6Td3e6uxh-jtgP9db1ZpqxwzD2tVRSlrLMKknQt4-gt2GMHU1HqKyqsiznBaGyOxTdou8j2npHW0Lc14LXUzjq6fL1dPmawlELXVM4iPbmXnzcbLE5kB7SoP4Bndi3TQ</recordid><startdate>202001</startdate><enddate>202001</enddate><creator>Brown, T R</creator><creator>Edrington, T S</creator><creator>Genovese, K J</creator><creator>He, H L</creator><creator>Anderson, R C</creator><creator>Nisbet, D J</creator><general>Elsevier Limited</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RQ</scope><scope>7WY</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>883</scope><scope>88E</scope><scope>88I</scope><scope>8C1</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FRNLG</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>K9.</scope><scope>L.-</scope><scope>M0F</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>PATMY</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>7X8</scope></search><sort><creationdate>202001</creationdate><title>Evaluation of the Efficacy of Three Direct Fed Microbial Cocktails To Reduce Fecal Shedding of Escherichia coli O157:H7 in Naturally Colonized Cattle and Fecal Shedding and Peripheral Lymph Node Carriage of Salmonella in Experimentally Infected Cattle</title><author>Brown, T R ; Edrington, T S ; Genovese, K J ; He, H L ; Anderson, R C ; Nisbet, D J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c381t-e043ac9acbfaf150f264911713b96839932ca2aa75057d1a75ffe1d5681491813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Additives</topic><topic>Animal Feed</topic><topic>Animals</topic><topic>Anti-Infective Agents - administration & dosage</topic><topic>Bacterial Shedding</topic><topic>Cattle</topic><topic>Cattle Diseases - drug therapy</topic><topic>Cattle Diseases - microbiology</topic><topic>Colony Count, Microbial</topic><topic>E coli</topic><topic>Escherichia coli</topic><topic>Escherichia coli Infections - drug therapy</topic><topic>Escherichia coli Infections - veterinary</topic><topic>Escherichia coli O157</topic><topic>Evaluation</topic><topic>Experiments</topic><topic>Feces</topic><topic>Feces - microbiology</topic><topic>Feeds</topic><topic>Food safety</topic><topic>Immune response</topic><topic>Laboratories</topic><topic>Lactobacillus</topic><topic>Lactose</topic><topic>Lymph nodes</topic><topic>Lymph Nodes - microbiology</topic><topic>Lymphatic system</topic><topic>Microorganisms</topic><topic>Monocytes</topic><topic>Nitric oxide</topic><topic>Pathogens</topic><topic>Product recalls</topic><topic>Salmonella</topic><topic>Salmonella Infections, Animal - drug therapy</topic><topic>Shedding</topic><topic>Vaccines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Brown, T R</creatorcontrib><creatorcontrib>Edrington, T S</creatorcontrib><creatorcontrib>Genovese, K J</creatorcontrib><creatorcontrib>He, H L</creatorcontrib><creatorcontrib>Anderson, R C</creatorcontrib><creatorcontrib>Nisbet, D J</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Career & Technical Education Database</collection><collection>ABI/INFORM Collection</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ABI/INFORM Trade & Industry (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>ProQuest SciTech 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>ABI/INFORM Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Business Premium Collection (Alumni)</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Business Collection (Alumni Edition)</collection><collection>ProQuest Business Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ABI/INFORM Professional Advanced</collection><collection>ABI/INFORM Trade & Industry</collection><collection>Agricultural Science Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Environmental Science Database</collection><collection>ProQuest One Business</collection><collection>ProQuest One Business (Alumni)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of food protection</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Brown, T R</au><au>Edrington, T S</au><au>Genovese, K J</au><au>He, H L</au><au>Anderson, R C</au><au>Nisbet, D J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of the Efficacy of Three Direct Fed Microbial Cocktails To Reduce Fecal Shedding of Escherichia coli O157:H7 in Naturally Colonized Cattle and Fecal Shedding and Peripheral Lymph Node Carriage of Salmonella in Experimentally Infected Cattle</atitle><jtitle>Journal of food protection</jtitle><addtitle>J Food Prot</addtitle><date>2020-01</date><risdate>2020</risdate><volume>83</volume><issue>1</issue><spage>28</spage><epage>36</epage><pages>28-36</pages><issn>0362-028X</issn><eissn>1944-9097</eissn><abstract>Two experiments were conducted to evaluate the feeding of direct fed microbials (DFMs) on fecal shedding of
O157:H7 in naturally infected cattle (experiment I) and on
in the feces and peripheral lymph nodes (PLNs) of experimentally infected cattle (experiment II). Thirty cattle, 10 per treatment, were used in each experiment. Treatments in experiment I consisted of a control (lactose carrier only); DFM1, a 1:1 ratio of
and
; and DFM2, a 1:1 ratio of
and
. In Experiment II, DFM1 was replaced with DFM3, a 1:2 ratio of
and other
strains. Additives were mixed in water and applied as a top-dressing to each pen's daily ration for 50 days. Approximately half-way through each experiment, the DFM concentration was doubled for the remainder of the study. Fecal samples were collected throughout experiment I and cultured for
O157:H7. Cattle in experiment II were inoculated intradermally with
Montevideo on days 32, 37, and 42 and then necropsied on days 49 and 50 (five cattle per treatment on each day). Innate immune function was assessed on days 29, 49, and 50. In experiment I, fecal concentration and prevalence of
O157:H7 were not different (
> 0.10) nor was there an effect (
= 0.95) on the percentage of super shedders (cattle shedding ≥3.0 log CFU/g of feces). In experiment II, no treatment differences (
> 0.05) were observed for
in the PLNs except for the inguinal nodes, which had a significantly lower
prevalence in DFM-supplemented cattle than in the controls. Immune function, as measured by monocyte nitric oxide production and neutrophil oxidative burst, was decreased (
< 0.05) in the DFM treatment groups. Although results of this research indicate little to no effect of these DFMs on
O157:H7 or
in cattle, an increase in the duration of administration to that similar to what is used for commercial cattle might elicit treatment differences.</abstract><cop>United States</cop><pub>Elsevier Limited</pub><pmid>31809195</pmid><doi>10.4315/0362-028X.JFP-19-208</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
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| ispartof | Journal of food protection, 2020-01, Vol.83 (1), p.28-36 |
| issn | 0362-028X 1944-9097 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2322727482 |
| source | MEDLINE; EZB-FREE-00999 freely available EZB journals; ProQuest Central UK/Ireland; Alma/SFX Local Collection |
| subjects | Additives Animal Feed Animals Anti-Infective Agents - administration & dosage Bacterial Shedding Cattle Cattle Diseases - drug therapy Cattle Diseases - microbiology Colony Count, Microbial E coli Escherichia coli Escherichia coli Infections - drug therapy Escherichia coli Infections - veterinary Escherichia coli O157 Evaluation Experiments Feces Feces - microbiology Feeds Food safety Immune response Laboratories Lactobacillus Lactose Lymph nodes Lymph Nodes - microbiology Lymphatic system Microorganisms Monocytes Nitric oxide Pathogens Product recalls Salmonella Salmonella Infections, Animal - drug therapy Shedding Vaccines |
| title | Evaluation of the Efficacy of Three Direct Fed Microbial Cocktails To Reduce Fecal Shedding of Escherichia coli O157:H7 in Naturally Colonized Cattle and Fecal Shedding and Peripheral Lymph Node Carriage of Salmonella in Experimentally Infected Cattle |
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