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Relationships among measures of growth performance and efficiency with carcass traits, visceral organ mass, and pancreatic digestive enzymes in feedlot cattle

Ninety-three crossbred steer calves (BW ± SD = 385 ± 50 kg) were used (n = 48 steers in yr 1, n = 45 steers in yr 2) to examine the relationship among carcass traits, lean, bone, and fat proportions, visceral tissue weights, and pancreatic digestive enzyme activity with DMI, ADG, G:F, and residual f...

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Published in:Journal of animal science 2009-04, Vol.87 (4), p.1548-1557
Main Authors: Mader, C.J, Montanholi, Y.R, Wang, Y.J, Miller, S.P, Mandell, I.B, McBride, B.W, Swanson, K.C
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Swanson, K.C
description Ninety-three crossbred steer calves (BW ± SD = 385 ± 50 kg) were used (n = 48 steers in yr 1, n = 45 steers in yr 2) to examine the relationship among carcass traits, lean, bone, and fat proportions, visceral tissue weights, and pancreatic digestive enzyme activity with DMI, ADG, G:F, and residual feed intake. Calves were progeny from crossbred dams predominantly of Angus and Simmental breeding and were sired by Angus, Simmental, crossbred (predominantly of Angus and Simmental breeding), Charolais, or Piedmontese bulls. Steers were fed a high-moisture corn-based diet for an average of 112 d. Partial correlation analysis accounting for year, pen within year, week of slaughter within year, and sire breed was conducted. Gain:feed was negatively correlated (P [less-than or equal to] 0.04) with backfat thickness (r = -0.38), marbling score (r = -0.32), and trim and kidney fat weight proportion (g/kg of BW; r = -0.42). Residual feed intake (P = 0.008; g/kg of BW; r = 0.34) and backfat-corrected residual feed intake (P = 0.005; r = 0.29) were positively correlated with trim and kidney fat weight proportion. Gain:feed was negatively correlated (P < 0.001) with total fat weight proportion (g/kg of rib; r = -0.45) and positively correlated (P [less-than or equal to] 0.03) with lean weight proportion (g/kg of rib; r = 0.30) and bone weight proportion (g/kg of rib; r = 0.28). Gain:feed was negatively correlated (P [less-than or equal to] 0.01) with subcutaneous fat weight proportion (g/kg of rib; r = -0.32) and intramuscular fat weight proportion (g/ kg of rib; r = 0.37). Gain:feed was negatively correlated (P < 0.001) with total visceral weight proportion (g/kg of BW; r = -0.44) and visceral fat weight proportion (g/kg of BW; r = -0.41) but was positively correlated (P = 0.02) with spleen weight proportion (g/kg of BW; r = 0.30). There were no significant correlations (P > 0.10) between performance measures and the pancreatic proportional content of α-amylase and trypsin activity (units/kg of BW). These data indicate that carcass fatness traits and changes in the proportional weight of total viscera may be negatively associated with G:F and that visceral fat weight proportion and trim and kidney fat weight proportion may be important factors influencing this relationship.
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Calves were progeny from crossbred dams predominantly of Angus and Simmental breeding and were sired by Angus, Simmental, crossbred (predominantly of Angus and Simmental breeding), Charolais, or Piedmontese bulls. Steers were fed a high-moisture corn-based diet for an average of 112 d. Partial correlation analysis accounting for year, pen within year, week of slaughter within year, and sire breed was conducted. Gain:feed was negatively correlated (P [less-than or equal to] 0.04) with backfat thickness (r = -0.38), marbling score (r = -0.32), and trim and kidney fat weight proportion (g/kg of BW; r = -0.42). Residual feed intake (P = 0.008; g/kg of BW; r = 0.34) and backfat-corrected residual feed intake (P = 0.005; r = 0.29) were positively correlated with trim and kidney fat weight proportion. Gain:feed was negatively correlated (P &lt; 0.001) with total fat weight proportion (g/kg of rib; r = -0.45) and positively correlated (P [less-than or equal to] 0.03) with lean weight proportion (g/kg of rib; r = 0.30) and bone weight proportion (g/kg of rib; r = 0.28). Gain:feed was negatively correlated (P [less-than or equal to] 0.01) with subcutaneous fat weight proportion (g/kg of rib; r = -0.32) and intramuscular fat weight proportion (g/ kg of rib; r = 0.37). Gain:feed was negatively correlated (P &lt; 0.001) with total visceral weight proportion (g/kg of BW; r = -0.44) and visceral fat weight proportion (g/kg of BW; r = -0.41) but was positively correlated (P = 0.02) with spleen weight proportion (g/kg of BW; r = 0.30). There were no significant correlations (P &gt; 0.10) between performance measures and the pancreatic proportional content of α-amylase and trypsin activity (units/kg of BW). These data indicate that carcass fatness traits and changes in the proportional weight of total viscera may be negatively associated with G:F and that visceral fat weight proportion and trim and kidney fat weight proportion may be important factors influencing this relationship.</description><identifier>ISSN: 0021-8812</identifier><identifier>EISSN: 1525-3163</identifier><identifier>DOI: 10.2527/jas.2008-0914</identifier><identifier>PMID: 18952722</identifier><language>eng</language><publisher>Champaign, IL: American Society of Animal Science</publisher><subject>Adipose Tissue - metabolism ; alpha-amylase ; animal performance ; Animal productions ; animal tissues ; Animals ; backfat ; beef cattle ; Biological and medical sciences ; Body Composition - physiology ; carcass characteristics ; carcass composition ; Cattle - growth &amp; development ; Cattle - metabolism ; digestive enzymes ; dry matter intake ; Eating - physiology ; feed conversion ; feedlots ; Food industries ; Fundamental and applied biological sciences. Psychology ; lean body mass ; liveweight gain ; Male ; marbling ; Meat and meat product industries ; Organ Size - physiology ; pancreas ; Pancreas - enzymology ; residual feed intake ; steers ; Terrestrial animal productions ; thickness ; tissue weight ; trypsin ; Vertebrates ; Viscera - anatomy &amp; histology ; visceral fat ; Weight Gain - physiology</subject><ispartof>Journal of animal science, 2009-04, Vol.87 (4), p.1548-1557</ispartof><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=21266167$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18952722$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mader, C.J</creatorcontrib><creatorcontrib>Montanholi, Y.R</creatorcontrib><creatorcontrib>Wang, Y.J</creatorcontrib><creatorcontrib>Miller, S.P</creatorcontrib><creatorcontrib>Mandell, I.B</creatorcontrib><creatorcontrib>McBride, B.W</creatorcontrib><creatorcontrib>Swanson, K.C</creatorcontrib><title>Relationships among measures of growth performance and efficiency with carcass traits, visceral organ mass, and pancreatic digestive enzymes in feedlot cattle</title><title>Journal of animal science</title><addtitle>J Anim Sci</addtitle><description>Ninety-three crossbred steer calves (BW ± SD = 385 ± 50 kg) were used (n = 48 steers in yr 1, n = 45 steers in yr 2) to examine the relationship among carcass traits, lean, bone, and fat proportions, visceral tissue weights, and pancreatic digestive enzyme activity with DMI, ADG, G:F, and residual feed intake. Calves were progeny from crossbred dams predominantly of Angus and Simmental breeding and were sired by Angus, Simmental, crossbred (predominantly of Angus and Simmental breeding), Charolais, or Piedmontese bulls. Steers were fed a high-moisture corn-based diet for an average of 112 d. Partial correlation analysis accounting for year, pen within year, week of slaughter within year, and sire breed was conducted. Gain:feed was negatively correlated (P [less-than or equal to] 0.04) with backfat thickness (r = -0.38), marbling score (r = -0.32), and trim and kidney fat weight proportion (g/kg of BW; r = -0.42). Residual feed intake (P = 0.008; g/kg of BW; r = 0.34) and backfat-corrected residual feed intake (P = 0.005; r = 0.29) were positively correlated with trim and kidney fat weight proportion. Gain:feed was negatively correlated (P &lt; 0.001) with total fat weight proportion (g/kg of rib; r = -0.45) and positively correlated (P [less-than or equal to] 0.03) with lean weight proportion (g/kg of rib; r = 0.30) and bone weight proportion (g/kg of rib; r = 0.28). Gain:feed was negatively correlated (P [less-than or equal to] 0.01) with subcutaneous fat weight proportion (g/kg of rib; r = -0.32) and intramuscular fat weight proportion (g/ kg of rib; r = 0.37). Gain:feed was negatively correlated (P &lt; 0.001) with total visceral weight proportion (g/kg of BW; r = -0.44) and visceral fat weight proportion (g/kg of BW; r = -0.41) but was positively correlated (P = 0.02) with spleen weight proportion (g/kg of BW; r = 0.30). There were no significant correlations (P &gt; 0.10) between performance measures and the pancreatic proportional content of α-amylase and trypsin activity (units/kg of BW). 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Psychology</subject><subject>lean body mass</subject><subject>liveweight gain</subject><subject>Male</subject><subject>marbling</subject><subject>Meat and meat product industries</subject><subject>Organ Size - physiology</subject><subject>pancreas</subject><subject>Pancreas - enzymology</subject><subject>residual feed intake</subject><subject>steers</subject><subject>Terrestrial animal productions</subject><subject>thickness</subject><subject>tissue weight</subject><subject>trypsin</subject><subject>Vertebrates</subject><subject>Viscera - anatomy &amp; histology</subject><subject>visceral fat</subject><subject>Weight Gain - physiology</subject><issn>0021-8812</issn><issn>1525-3163</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNpFkcFu1DAQhi0EotvCkSv4AqemjO04cY5VBQWpEhLQczTrjLOunHixs10tD8Oz4tIFTj7MN9_MP2bslYALqWX7_g7zhQQwFXSifsJWQktdKdGop2wFIEVljJAn7DTnOwAhdaefsxNhutIr5Yr9-koBFx_nvPHbzHGK88gnwrxLlHl0fExxv2z4lpKLacLZEsd54OSct55me-B7X-oWk8Wc-ZLQL_mc3_tsKWHgMY0486nUzv80bosiURlp-eBHyou_J07zz8NU5vmZO6IhxKUIlyXQC_bMYcj08viesduPH75ffapuvlx_vrq8qZzs6qXSUKsaSJDRSlkQTg1Kyxp0q9auldA9xB2GGtCAWVtE1bWqrcF0rTTSOnXG3j16tyn-2JWt-ukhQAg4U9zlvmlBgdaigK-P4G490dBvk58wHfq_Fy3A2yOA2WJwqeT1-R8nhWwa0bT_J278uNn7RH2eMISiFX35U9P2dS90bQr45hF0GHscU5HdfpMgFIimrFRUvwGMhZ1j</recordid><startdate>20090401</startdate><enddate>20090401</enddate><creator>Mader, C.J</creator><creator>Montanholi, Y.R</creator><creator>Wang, Y.J</creator><creator>Miller, S.P</creator><creator>Mandell, I.B</creator><creator>McBride, B.W</creator><creator>Swanson, K.C</creator><general>American Society of Animal Science</general><general>Am Soc Animal Sci</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>20090401</creationdate><title>Relationships among measures of growth performance and efficiency with carcass traits, visceral organ mass, and pancreatic digestive enzymes in feedlot cattle</title><author>Mader, C.J ; Montanholi, Y.R ; Wang, Y.J ; Miller, S.P ; Mandell, I.B ; McBride, B.W ; Swanson, K.C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f294t-504340e1e8533c01f3d35240573bf72099527dd40a808bcaa3973740897282cf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Adipose Tissue - metabolism</topic><topic>alpha-amylase</topic><topic>animal performance</topic><topic>Animal productions</topic><topic>animal tissues</topic><topic>Animals</topic><topic>backfat</topic><topic>beef cattle</topic><topic>Biological and medical sciences</topic><topic>Body Composition - physiology</topic><topic>carcass characteristics</topic><topic>carcass composition</topic><topic>Cattle - growth &amp; development</topic><topic>Cattle - metabolism</topic><topic>digestive enzymes</topic><topic>dry matter intake</topic><topic>Eating - physiology</topic><topic>feed conversion</topic><topic>feedlots</topic><topic>Food industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>lean body mass</topic><topic>liveweight gain</topic><topic>Male</topic><topic>marbling</topic><topic>Meat and meat product industries</topic><topic>Organ Size - physiology</topic><topic>pancreas</topic><topic>Pancreas - enzymology</topic><topic>residual feed intake</topic><topic>steers</topic><topic>Terrestrial animal productions</topic><topic>thickness</topic><topic>tissue weight</topic><topic>trypsin</topic><topic>Vertebrates</topic><topic>Viscera - anatomy &amp; histology</topic><topic>visceral fat</topic><topic>Weight Gain - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mader, C.J</creatorcontrib><creatorcontrib>Montanholi, Y.R</creatorcontrib><creatorcontrib>Wang, Y.J</creatorcontrib><creatorcontrib>Miller, S.P</creatorcontrib><creatorcontrib>Mandell, I.B</creatorcontrib><creatorcontrib>McBride, B.W</creatorcontrib><creatorcontrib>Swanson, K.C</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of animal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mader, C.J</au><au>Montanholi, Y.R</au><au>Wang, Y.J</au><au>Miller, S.P</au><au>Mandell, I.B</au><au>McBride, B.W</au><au>Swanson, K.C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relationships among measures of growth performance and efficiency with carcass traits, visceral organ mass, and pancreatic digestive enzymes in feedlot cattle</atitle><jtitle>Journal of animal science</jtitle><addtitle>J Anim Sci</addtitle><date>2009-04-01</date><risdate>2009</risdate><volume>87</volume><issue>4</issue><spage>1548</spage><epage>1557</epage><pages>1548-1557</pages><issn>0021-8812</issn><eissn>1525-3163</eissn><abstract>Ninety-three crossbred steer calves (BW ± SD = 385 ± 50 kg) were used (n = 48 steers in yr 1, n = 45 steers in yr 2) to examine the relationship among carcass traits, lean, bone, and fat proportions, visceral tissue weights, and pancreatic digestive enzyme activity with DMI, ADG, G:F, and residual feed intake. Calves were progeny from crossbred dams predominantly of Angus and Simmental breeding and were sired by Angus, Simmental, crossbred (predominantly of Angus and Simmental breeding), Charolais, or Piedmontese bulls. Steers were fed a high-moisture corn-based diet for an average of 112 d. Partial correlation analysis accounting for year, pen within year, week of slaughter within year, and sire breed was conducted. Gain:feed was negatively correlated (P [less-than or equal to] 0.04) with backfat thickness (r = -0.38), marbling score (r = -0.32), and trim and kidney fat weight proportion (g/kg of BW; r = -0.42). Residual feed intake (P = 0.008; g/kg of BW; r = 0.34) and backfat-corrected residual feed intake (P = 0.005; r = 0.29) were positively correlated with trim and kidney fat weight proportion. Gain:feed was negatively correlated (P &lt; 0.001) with total fat weight proportion (g/kg of rib; r = -0.45) and positively correlated (P [less-than or equal to] 0.03) with lean weight proportion (g/kg of rib; r = 0.30) and bone weight proportion (g/kg of rib; r = 0.28). Gain:feed was negatively correlated (P [less-than or equal to] 0.01) with subcutaneous fat weight proportion (g/kg of rib; r = -0.32) and intramuscular fat weight proportion (g/ kg of rib; r = 0.37). Gain:feed was negatively correlated (P &lt; 0.001) with total visceral weight proportion (g/kg of BW; r = -0.44) and visceral fat weight proportion (g/kg of BW; r = -0.41) but was positively correlated (P = 0.02) with spleen weight proportion (g/kg of BW; r = 0.30). There were no significant correlations (P &gt; 0.10) between performance measures and the pancreatic proportional content of α-amylase and trypsin activity (units/kg of BW). These data indicate that carcass fatness traits and changes in the proportional weight of total viscera may be negatively associated with G:F and that visceral fat weight proportion and trim and kidney fat weight proportion may be important factors influencing this relationship.</abstract><cop>Champaign, IL</cop><pub>American Society of Animal Science</pub><pmid>18952722</pmid><doi>10.2527/jas.2008-0914</doi><tpages>10</tpages></addata></record>
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ispartof Journal of animal science, 2009-04, Vol.87 (4), p.1548-1557
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1525-3163
language eng
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source Oxford Journals Online
subjects Adipose Tissue - metabolism
alpha-amylase
animal performance
Animal productions
animal tissues
Animals
backfat
beef cattle
Biological and medical sciences
Body Composition - physiology
carcass characteristics
carcass composition
Cattle - growth & development
Cattle - metabolism
digestive enzymes
dry matter intake
Eating - physiology
feed conversion
feedlots
Food industries
Fundamental and applied biological sciences. Psychology
lean body mass
liveweight gain
Male
marbling
Meat and meat product industries
Organ Size - physiology
pancreas
Pancreas - enzymology
residual feed intake
steers
Terrestrial animal productions
thickness
tissue weight
trypsin
Vertebrates
Viscera - anatomy & histology
visceral fat
Weight Gain - physiology
title Relationships among measures of growth performance and efficiency with carcass traits, visceral organ mass, and pancreatic digestive enzymes in feedlot cattle
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