PSI-18 Identifying genetic variants associated with grazing, walking, and slope use of cattle experiencing mild heat load
Abstract Rangeland is a valuable resource that can allow producers to cost effectively provide nutrients for grazing cattle. However, grazing behavior of cattle is adversely affected when the temperature humidity index is greater than 72. It is possible to select cattle that exhibit efficient grazin...
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Veröffentlicht in: | Journal of animal science 2021-11, Vol.99 (Supplement_3), p.281-281 |
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creator | Stegemiller, Morgan R Ellison, Melinda J Hall, John B Sprinkle, James E Murdoch, Brenda M |
description | Abstract
Rangeland is a valuable resource that can allow producers to cost effectively provide nutrients for grazing cattle. However, grazing behavior of cattle is adversely affected when the temperature humidity index is greater than 72. It is possible to select cattle that exhibit efficient grazing behavior even under mild heat stress. This study evaluated genetic associations with grazing behavior to help producers identify cows that will effectively use their rangeland pastures. Using genome-wide associations, this study identified single nucleotide polymorphisms (SNPs) associated with grazing time, walking time and max slope that cattle utilized while experiencing mild heat load. Data were collected from Angus X Hereford 2-year-old beef cows from UI herd over two years (37 grazing and walking minutes, 38 max slope). Genotypes were obtained using a Bovine GGP 50K SNP marker array and 41,686 markers were used in the analyses. Two SNPs on chromosome 11 are significantly (P = 5.01e-7, P = 6.46e-7) associated with grazing minutes and explain 0.52 proportion of variance (PVE). A SNP on chromosome 3 is significant for walking minutes (P=1.91e-6) with a PVE of 0.48. Additionally, a SNP on chromosome 14 is significantly (P = 8.50e-6) associated with max slope and has a PVE of 0.43. This ongoing project identified significant associations with grazing and walking minutes and maximum slope. This research will be strengthened with the addition of more animals over successive years. Some cattle spend more time grazing, walking, or at a higher elevation in mild heat load. Identifying genetic variants associated with grazing time, walking time, and maximum slope use while under heat stress can enable producers to select for cattle that best fit the rangeland available to them. |
doi_str_mv | 10.1093/jas/skab235.516 |
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Rangeland is a valuable resource that can allow producers to cost effectively provide nutrients for grazing cattle. However, grazing behavior of cattle is adversely affected when the temperature humidity index is greater than 72. It is possible to select cattle that exhibit efficient grazing behavior even under mild heat stress. This study evaluated genetic associations with grazing behavior to help producers identify cows that will effectively use their rangeland pastures. Using genome-wide associations, this study identified single nucleotide polymorphisms (SNPs) associated with grazing time, walking time and max slope that cattle utilized while experiencing mild heat load. Data were collected from Angus X Hereford 2-year-old beef cows from UI herd over two years (37 grazing and walking minutes, 38 max slope). Genotypes were obtained using a Bovine GGP 50K SNP marker array and 41,686 markers were used in the analyses. Two SNPs on chromosome 11 are significantly (P = 5.01e-7, P = 6.46e-7) associated with grazing minutes and explain 0.52 proportion of variance (PVE). A SNP on chromosome 3 is significant for walking minutes (P=1.91e-6) with a PVE of 0.48. Additionally, a SNP on chromosome 14 is significantly (P = 8.50e-6) associated with max slope and has a PVE of 0.43. This ongoing project identified significant associations with grazing and walking minutes and maximum slope. This research will be strengthened with the addition of more animals over successive years. Some cattle spend more time grazing, walking, or at a higher elevation in mild heat load. Identifying genetic variants associated with grazing time, walking time, and maximum slope use while under heat stress can enable producers to select for cattle that best fit the rangeland available to them.</description><identifier>ISSN: 0021-8812</identifier><identifier>EISSN: 1525-3163</identifier><identifier>DOI: 10.1093/jas/skab235.516</identifier><language>eng</language><publisher>US: Oxford University Press</publisher><subject>Beef cattle ; Cattle ; Chromosome 11 ; Chromosome 14 ; Chromosome 3 ; Chromosomes ; Genetic diversity ; Genetic variance ; Genomes ; Genotypes ; Grazing ; Heat ; Heat stress ; Heat tolerance ; Markers ; Nucleotides ; Nutrients ; Pasture ; Rangelands ; Single-nucleotide polymorphism</subject><ispartof>Journal of animal science, 2021-11, Vol.99 (Supplement_3), p.281-281</ispartof><rights>The Author(s) 2021. Published by Oxford University Press on behalf of the American Society of Animal Science. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. 2021</rights><rights>The Author(s) 2021. Published by Oxford University Press on behalf of the American Society of Animal Science. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1584,27924,27925</link.rule.ids></links><search><creatorcontrib>Stegemiller, Morgan R</creatorcontrib><creatorcontrib>Ellison, Melinda J</creatorcontrib><creatorcontrib>Hall, John B</creatorcontrib><creatorcontrib>Sprinkle, James E</creatorcontrib><creatorcontrib>Murdoch, Brenda M</creatorcontrib><title>PSI-18 Identifying genetic variants associated with grazing, walking, and slope use of cattle experiencing mild heat load</title><title>Journal of animal science</title><description>Abstract
Rangeland is a valuable resource that can allow producers to cost effectively provide nutrients for grazing cattle. However, grazing behavior of cattle is adversely affected when the temperature humidity index is greater than 72. It is possible to select cattle that exhibit efficient grazing behavior even under mild heat stress. This study evaluated genetic associations with grazing behavior to help producers identify cows that will effectively use their rangeland pastures. Using genome-wide associations, this study identified single nucleotide polymorphisms (SNPs) associated with grazing time, walking time and max slope that cattle utilized while experiencing mild heat load. Data were collected from Angus X Hereford 2-year-old beef cows from UI herd over two years (37 grazing and walking minutes, 38 max slope). Genotypes were obtained using a Bovine GGP 50K SNP marker array and 41,686 markers were used in the analyses. Two SNPs on chromosome 11 are significantly (P = 5.01e-7, P = 6.46e-7) associated with grazing minutes and explain 0.52 proportion of variance (PVE). A SNP on chromosome 3 is significant for walking minutes (P=1.91e-6) with a PVE of 0.48. Additionally, a SNP on chromosome 14 is significantly (P = 8.50e-6) associated with max slope and has a PVE of 0.43. This ongoing project identified significant associations with grazing and walking minutes and maximum slope. This research will be strengthened with the addition of more animals over successive years. Some cattle spend more time grazing, walking, or at a higher elevation in mild heat load. Identifying genetic variants associated with grazing time, walking time, and maximum slope use while under heat stress can enable producers to select for cattle that best fit the rangeland available to them.</description><subject>Beef cattle</subject><subject>Cattle</subject><subject>Chromosome 11</subject><subject>Chromosome 14</subject><subject>Chromosome 3</subject><subject>Chromosomes</subject><subject>Genetic diversity</subject><subject>Genetic variance</subject><subject>Genomes</subject><subject>Genotypes</subject><subject>Grazing</subject><subject>Heat</subject><subject>Heat stress</subject><subject>Heat tolerance</subject><subject>Markers</subject><subject>Nucleotides</subject><subject>Nutrients</subject><subject>Pasture</subject><subject>Rangelands</subject><subject>Single-nucleotide polymorphism</subject><issn>0021-8812</issn><issn>1525-3163</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkE1PAjEQhhujiYievTbxZlzoB90tR0P8ICHRRD1vZttZKCy7a1tE_PUuwt3TTDLPO5N5CLnmbMDZWA6XEIZhBYWQaqB4ekJ6XAmVSJ7KU9JjTPBEay7OyUUIS8a4UGPVI7vXt2nCNZ1arKMrd66e0znWGJ2hX-Ad1DFQCKExDiJaunVxQecefjrwjm6hWv01UFsaqqZFuglIm5IaiLFCit8teoe12e9du8rSBUKkVQP2kpyVUAW8OtY--Xh8eJ88J7OXp-nkfpYYziRLrLapzITSqG2Rpt0bRaYtkyPIOC9SMGCEsUynANyi1SVTItPZCMayG6GQfXJz2Nv65nODIebLZuPr7mQuUqX1SI4F66jhgTK-CcFjmbfercHvcs7yvd-885sf_ead3y5xe0g0m_Zf-BcI1X5i</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Stegemiller, Morgan R</creator><creator>Ellison, Melinda J</creator><creator>Hall, John B</creator><creator>Sprinkle, James E</creator><creator>Murdoch, Brenda M</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>U9A</scope></search><sort><creationdate>20211101</creationdate><title>PSI-18 Identifying genetic variants associated with grazing, walking, and slope use of cattle experiencing mild heat load</title><author>Stegemiller, Morgan R ; Ellison, Melinda J ; Hall, John B ; Sprinkle, James E ; Murdoch, Brenda M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1030-d8d637258e8db66021b78d034a711b6acac2cd086aa1ded8f0527874a93cace23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Beef cattle</topic><topic>Cattle</topic><topic>Chromosome 11</topic><topic>Chromosome 14</topic><topic>Chromosome 3</topic><topic>Chromosomes</topic><topic>Genetic diversity</topic><topic>Genetic variance</topic><topic>Genomes</topic><topic>Genotypes</topic><topic>Grazing</topic><topic>Heat</topic><topic>Heat stress</topic><topic>Heat tolerance</topic><topic>Markers</topic><topic>Nucleotides</topic><topic>Nutrients</topic><topic>Pasture</topic><topic>Rangelands</topic><topic>Single-nucleotide polymorphism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stegemiller, Morgan R</creatorcontrib><creatorcontrib>Ellison, Melinda J</creatorcontrib><creatorcontrib>Hall, John B</creatorcontrib><creatorcontrib>Sprinkle, James E</creatorcontrib><creatorcontrib>Murdoch, Brenda M</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><jtitle>Journal of animal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Stegemiller, Morgan R</au><au>Ellison, Melinda J</au><au>Hall, John B</au><au>Sprinkle, James E</au><au>Murdoch, Brenda M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>PSI-18 Identifying genetic variants associated with grazing, walking, and slope use of cattle experiencing mild heat load</atitle><jtitle>Journal of animal science</jtitle><date>2021-11-01</date><risdate>2021</risdate><volume>99</volume><issue>Supplement_3</issue><spage>281</spage><epage>281</epage><pages>281-281</pages><issn>0021-8812</issn><eissn>1525-3163</eissn><abstract>Abstract
Rangeland is a valuable resource that can allow producers to cost effectively provide nutrients for grazing cattle. However, grazing behavior of cattle is adversely affected when the temperature humidity index is greater than 72. It is possible to select cattle that exhibit efficient grazing behavior even under mild heat stress. This study evaluated genetic associations with grazing behavior to help producers identify cows that will effectively use their rangeland pastures. Using genome-wide associations, this study identified single nucleotide polymorphisms (SNPs) associated with grazing time, walking time and max slope that cattle utilized while experiencing mild heat load. Data were collected from Angus X Hereford 2-year-old beef cows from UI herd over two years (37 grazing and walking minutes, 38 max slope). Genotypes were obtained using a Bovine GGP 50K SNP marker array and 41,686 markers were used in the analyses. Two SNPs on chromosome 11 are significantly (P = 5.01e-7, P = 6.46e-7) associated with grazing minutes and explain 0.52 proportion of variance (PVE). A SNP on chromosome 3 is significant for walking minutes (P=1.91e-6) with a PVE of 0.48. Additionally, a SNP on chromosome 14 is significantly (P = 8.50e-6) associated with max slope and has a PVE of 0.43. This ongoing project identified significant associations with grazing and walking minutes and maximum slope. This research will be strengthened with the addition of more animals over successive years. Some cattle spend more time grazing, walking, or at a higher elevation in mild heat load. Identifying genetic variants associated with grazing time, walking time, and maximum slope use while under heat stress can enable producers to select for cattle that best fit the rangeland available to them.</abstract><cop>US</cop><pub>Oxford University Press</pub><doi>10.1093/jas/skab235.516</doi><tpages>1</tpages></addata></record> |
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source | Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals; PubMed Central |
subjects | Beef cattle Cattle Chromosome 11 Chromosome 14 Chromosome 3 Chromosomes Genetic diversity Genetic variance Genomes Genotypes Grazing Heat Heat stress Heat tolerance Markers Nucleotides Nutrients Pasture Rangelands Single-nucleotide polymorphism |
title | PSI-18 Identifying genetic variants associated with grazing, walking, and slope use of cattle experiencing mild heat load |
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