Evaluation of various measures of and factors influencing feed efficiency of dairy cattle
Early part records for milk yield and feed consumption of 2230 first lactation purebred and crossbred dairy cows were analyzed to evaluate various measures of feed efficiency. Correlated milk yield was estimated by adjusting the second 8 wk of milk yield for differences in weight of TDN consumed dur...
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| Veröffentlicht in: | Journal of dairy science 1992-05, Vol.75 (5), p.1273-1280 |
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| creator | Wang, S. (Universite Laval, Quebec, Canada) Roy, G.L Lee, A.J McAllister, A.J Batra, T.R Lin, C.Y Vesely, J.A Wauthy, J.M Winter, K.A |
| description | Early part records for milk yield and feed consumption of 2230 first lactation purebred and crossbred dairy cows were analyzed to evaluate various measures of feed efficiency. Correlated milk yield was estimated by adjusting the second 8 wk of milk yield for differences in weight of TDN consumed during wk 9 to 16, percentage of TDN derived from concentrate, and BW.75. Corrected milk yield is an estimate assuming that cows are the same size and consume the same amount of feed. Hence, it represents an expression of feed efficiency. Net feed efficiency, gross efficiency, corrected milk yield, and wk 9 to 16 milk were analyzed simultaneously. Coefficient of determination for net efficiency (.51) and gross efficiency (.72) were lower than that of milk (.82), whereas corrected milk yield had a coefficient of determination similar to that of milk. Hence, the use of ratios to define feed efficiency was less accurate than using corrected milk yield. Effects of genetic groups, stations, season of freshening, year of freshening, and heterosis were similar for gross efficiency and corrected milk yield, but different from those for milk. Therefore, corrected milk yield performed the same function as feed efficiency with higher accuracy |
| doi_str_mv | 10.3168/jds.S0022-0302(92)77877-1 |
| format | Article |
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(Universite Laval, Quebec, Canada) ; Roy, G.L ; Lee, A.J ; McAllister, A.J ; Batra, T.R ; Lin, C.Y ; Vesely, J.A ; Wauthy, J.M ; Winter, K.A</creator><creatorcontrib>Wang, S. (Universite Laval, Quebec, Canada) ; Roy, G.L ; Lee, A.J ; McAllister, A.J ; Batra, T.R ; Lin, C.Y ; Vesely, J.A ; Wauthy, J.M ; Winter, K.A</creatorcontrib><description>Early part records for milk yield and feed consumption of 2230 first lactation purebred and crossbred dairy cows were analyzed to evaluate various measures of feed efficiency. Correlated milk yield was estimated by adjusting the second 8 wk of milk yield for differences in weight of TDN consumed during wk 9 to 16, percentage of TDN derived from concentrate, and BW.75. Corrected milk yield is an estimate assuming that cows are the same size and consume the same amount of feed. Hence, it represents an expression of feed efficiency. Net feed efficiency, gross efficiency, corrected milk yield, and wk 9 to 16 milk were analyzed simultaneously. Coefficient of determination for net efficiency (.51) and gross efficiency (.72) were lower than that of milk (.82), whereas corrected milk yield had a coefficient of determination similar to that of milk. Hence, the use of ratios to define feed efficiency was less accurate than using corrected milk yield. Effects of genetic groups, stations, season of freshening, year of freshening, and heterosis were similar for gross efficiency and corrected milk yield, but different from those for milk. Therefore, corrected milk yield performed the same function as feed efficiency with higher accuracy</description><identifier>ISSN: 0022-0302</identifier><identifier>EISSN: 1525-3198</identifier><identifier>DOI: 10.3168/jds.S0022-0302(92)77877-1</identifier><identifier>PMID: 1597582</identifier><identifier>CODEN: JDSCAE</identifier><language>eng</language><publisher>Savoy, IL: Am Dairy Sci Assoc</publisher><subject>Animals ; Biological and medical sciences ; Breeding ; CANADA ; Cattle - genetics ; Cattle - physiology ; Eating ; EFFICACITE ALIMENTAIRE ; EFICIENCIA DE CONVERSION DEL PIENSO ; FACTEUR DU MILIEU ; FACTORES AMBIENTALES ; Female ; Food industries ; Fundamental and applied biological sciences. Psychology ; Genotype ; Hybrid Vigor ; Lactation - genetics ; Least-Squares Analysis ; Milk - secretion ; Milk and cheese industries. Ice creams ; PRODUCTOS DEL CRUZAMIENTO ; PRODUIT DE CROISEMENT ; RACE ; RAZAS ; RENDEMENT LAITIER ; RENDIMIENTO LECHERO ; VACAS LECHERAS ; VACHE LAITIERE</subject><ispartof>Journal of dairy science, 1992-05, Vol.75 (5), p.1273-1280</ispartof><rights>1992 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c470t-f6d1e039675ec788cd92c6b091d166285282aebbc77fdce80e47b0d47d18ce5e3</citedby><cites>FETCH-LOGICAL-c470t-f6d1e039675ec788cd92c6b091d166285282aebbc77fdce80e47b0d47d18ce5e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27846,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=5309458$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/1597582$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, S. (Universite Laval, Quebec, Canada)</creatorcontrib><creatorcontrib>Roy, G.L</creatorcontrib><creatorcontrib>Lee, A.J</creatorcontrib><creatorcontrib>McAllister, A.J</creatorcontrib><creatorcontrib>Batra, T.R</creatorcontrib><creatorcontrib>Lin, C.Y</creatorcontrib><creatorcontrib>Vesely, J.A</creatorcontrib><creatorcontrib>Wauthy, J.M</creatorcontrib><creatorcontrib>Winter, K.A</creatorcontrib><title>Evaluation of various measures of and factors influencing feed efficiency of dairy cattle</title><title>Journal of dairy science</title><addtitle>J Dairy Sci</addtitle><description>Early part records for milk yield and feed consumption of 2230 first lactation purebred and crossbred dairy cows were analyzed to evaluate various measures of feed efficiency. Correlated milk yield was estimated by adjusting the second 8 wk of milk yield for differences in weight of TDN consumed during wk 9 to 16, percentage of TDN derived from concentrate, and BW.75. Corrected milk yield is an estimate assuming that cows are the same size and consume the same amount of feed. Hence, it represents an expression of feed efficiency. Net feed efficiency, gross efficiency, corrected milk yield, and wk 9 to 16 milk were analyzed simultaneously. Coefficient of determination for net efficiency (.51) and gross efficiency (.72) were lower than that of milk (.82), whereas corrected milk yield had a coefficient of determination similar to that of milk. Hence, the use of ratios to define feed efficiency was less accurate than using corrected milk yield. Effects of genetic groups, stations, season of freshening, year of freshening, and heterosis were similar for gross efficiency and corrected milk yield, but different from those for milk. Therefore, corrected milk yield performed the same function as feed efficiency with higher accuracy</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Breeding</subject><subject>CANADA</subject><subject>Cattle - genetics</subject><subject>Cattle - physiology</subject><subject>Eating</subject><subject>EFFICACITE ALIMENTAIRE</subject><subject>EFICIENCIA DE CONVERSION DEL PIENSO</subject><subject>FACTEUR DU MILIEU</subject><subject>FACTORES AMBIENTALES</subject><subject>Female</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genotype</subject><subject>Hybrid Vigor</subject><subject>Lactation - genetics</subject><subject>Least-Squares Analysis</subject><subject>Milk - secretion</subject><subject>Milk and cheese industries. Ice creams</subject><subject>PRODUCTOS DEL CRUZAMIENTO</subject><subject>PRODUIT DE CROISEMENT</subject><subject>RACE</subject><subject>RAZAS</subject><subject>RENDEMENT LAITIER</subject><subject>RENDIMIENTO LECHERO</subject><subject>VACAS LECHERAS</subject><subject>VACHE LAITIERE</subject><issn>0022-0302</issn><issn>1525-3198</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>K30</sourceid><recordid>eNpdkFtrFDEUgIModa3-AUEYsYh9mJqTbCbJo5R6gUIfah98CpnkZJtlLjWZqey_b6a7tOBTyDnfuX2EfAR6xqFRX7c-n11TylhNOWVfNDuVUklZwwuyAsFEzUGrl2T1hLwmb3Leli8wKo7IEQgthWIr8ufi3nazneI4VGOo7m2K45yrHm2eE-YlZgdfBeumMeUqDqGbcXBx2FQB0VcYQnSxRHYL6m1Mu8rZaerwLXkVbJfx3eE9JjffL36f_6wvr378Ov92Wbu1pFMdGg9IuW6kQCeVcl4z17RUg4emYUowxSy2rZMyeIeK4lq21K-lB-VQID8mn_d979L4d8Y8mT5mh11nByynGMm0llzJAn76D9yOcxrKbgaKPAAQVBRK7ymXxpwTBnOXYm_TzgA1i3xT5JtH-WYxazQzj_INlNoPhwlz26N_rtzbLvmTQ95mZ7uQbDGZnzDBqV4L9XzRbdzc_osJTe5t15WmsAyXwggDTPICvt-DwY7GblLpdXOtOQUtGX8A1YmjYA</recordid><startdate>19920501</startdate><enddate>19920501</enddate><creator>Wang, S. (Universite Laval, Quebec, Canada)</creator><creator>Roy, G.L</creator><creator>Lee, A.J</creator><creator>McAllister, A.J</creator><creator>Batra, T.R</creator><creator>Lin, C.Y</creator><creator>Vesely, J.A</creator><creator>Wauthy, J.M</creator><creator>Winter, K.A</creator><general>Am Dairy Sci Assoc</general><general>American Dairy Science Association</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>AAYXX</scope><scope>CITATION</scope><scope>7WH</scope><scope>K30</scope><scope>PAAUG</scope><scope>PAWHS</scope><scope>PAWZZ</scope><scope>PAXOH</scope><scope>PBHAV</scope><scope>PBQSW</scope><scope>PBYQZ</scope><scope>PCIWU</scope><scope>PCMID</scope><scope>PCZJX</scope><scope>PDGRG</scope><scope>PDWWI</scope><scope>PETMR</scope><scope>PFVGT</scope><scope>PGXDX</scope><scope>PIHIL</scope><scope>PISVA</scope><scope>PJCTQ</scope><scope>PJTMS</scope><scope>PLCHJ</scope><scope>PMHAD</scope><scope>PNQDJ</scope><scope>POUND</scope><scope>PPLAD</scope><scope>PQAPC</scope><scope>PQCAN</scope><scope>PQCMW</scope><scope>PQEME</scope><scope>PQHKH</scope><scope>PQMID</scope><scope>PQNCT</scope><scope>PQNET</scope><scope>PQSCT</scope><scope>PQSET</scope><scope>PSVJG</scope><scope>PVMQY</scope><scope>PZGFC</scope><scope>7X8</scope></search><sort><creationdate>19920501</creationdate><title>Evaluation of various measures of and factors influencing feed efficiency of dairy cattle</title><author>Wang, S. (Universite Laval, Quebec, Canada) ; Roy, G.L ; Lee, A.J ; McAllister, A.J ; Batra, T.R ; Lin, C.Y ; Vesely, J.A ; Wauthy, J.M ; Winter, K.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c470t-f6d1e039675ec788cd92c6b091d166285282aebbc77fdce80e47b0d47d18ce5e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Breeding</topic><topic>CANADA</topic><topic>Cattle - genetics</topic><topic>Cattle - physiology</topic><topic>Eating</topic><topic>EFFICACITE ALIMENTAIRE</topic><topic>EFICIENCIA DE CONVERSION DEL PIENSO</topic><topic>FACTEUR DU MILIEU</topic><topic>FACTORES AMBIENTALES</topic><topic>Female</topic><topic>Food industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Genotype</topic><topic>Hybrid Vigor</topic><topic>Lactation - genetics</topic><topic>Least-Squares Analysis</topic><topic>Milk - secretion</topic><topic>Milk and cheese industries. Ice creams</topic><topic>PRODUCTOS DEL CRUZAMIENTO</topic><topic>PRODUIT DE CROISEMENT</topic><topic>RACE</topic><topic>RAZAS</topic><topic>RENDEMENT LAITIER</topic><topic>RENDIMIENTO LECHERO</topic><topic>VACAS LECHERAS</topic><topic>VACHE LAITIERE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, S. (Universite Laval, Quebec, Canada)</creatorcontrib><creatorcontrib>Roy, G.L</creatorcontrib><creatorcontrib>Lee, A.J</creatorcontrib><creatorcontrib>McAllister, A.J</creatorcontrib><creatorcontrib>Batra, T.R</creatorcontrib><creatorcontrib>Lin, C.Y</creatorcontrib><creatorcontrib>Vesely, J.A</creatorcontrib><creatorcontrib>Wauthy, J.M</creatorcontrib><creatorcontrib>Winter, K.A</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>CrossRef</collection><collection>Periodicals Index Online Segment 50</collection><collection>Periodicals Index Online</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - West</collection><collection>Primary Sources Access (Plan D) - International</collection><collection>Primary Sources Access & Build (Plan A) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Midwest</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Northeast</collection><collection>Primary Sources Access (Plan D) - Southeast</collection><collection>Primary Sources Access (Plan D) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Southeast</collection><collection>Primary Sources Access (Plan D) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - UK / I</collection><collection>Primary Sources Access (Plan D) - Canada</collection><collection>Primary Sources Access (Plan D) - EMEALA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - International</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - International</collection><collection>Primary Sources Access (Plan D) - West</collection><collection>Periodicals Index Online Segments 1-50</collection><collection>Primary Sources Access (Plan D) - APAC</collection><collection>Primary Sources Access (Plan D) - Midwest</collection><collection>Primary Sources Access (Plan D) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Canada</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - EMEALA</collection><collection>Primary Sources Access & Build (Plan A) - APAC</collection><collection>Primary Sources Access & Build (Plan A) - Canada</collection><collection>Primary Sources Access & Build (Plan A) - West</collection><collection>Primary Sources Access & Build (Plan A) - EMEALA</collection><collection>Primary Sources Access (Plan D) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - Midwest</collection><collection>Primary Sources Access & Build (Plan A) - North Central</collection><collection>Primary Sources Access & Build (Plan A) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - Southeast</collection><collection>Primary Sources Access (Plan D) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - APAC</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - MEA</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of dairy science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, S. (Universite Laval, Quebec, Canada)</au><au>Roy, G.L</au><au>Lee, A.J</au><au>McAllister, A.J</au><au>Batra, T.R</au><au>Lin, C.Y</au><au>Vesely, J.A</au><au>Wauthy, J.M</au><au>Winter, K.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of various measures of and factors influencing feed efficiency of dairy cattle</atitle><jtitle>Journal of dairy science</jtitle><addtitle>J Dairy Sci</addtitle><date>1992-05-01</date><risdate>1992</risdate><volume>75</volume><issue>5</issue><spage>1273</spage><epage>1280</epage><pages>1273-1280</pages><issn>0022-0302</issn><eissn>1525-3198</eissn><coden>JDSCAE</coden><abstract>Early part records for milk yield and feed consumption of 2230 first lactation purebred and crossbred dairy cows were analyzed to evaluate various measures of feed efficiency. Correlated milk yield was estimated by adjusting the second 8 wk of milk yield for differences in weight of TDN consumed during wk 9 to 16, percentage of TDN derived from concentrate, and BW.75. Corrected milk yield is an estimate assuming that cows are the same size and consume the same amount of feed. Hence, it represents an expression of feed efficiency. Net feed efficiency, gross efficiency, corrected milk yield, and wk 9 to 16 milk were analyzed simultaneously. Coefficient of determination for net efficiency (.51) and gross efficiency (.72) were lower than that of milk (.82), whereas corrected milk yield had a coefficient of determination similar to that of milk. Hence, the use of ratios to define feed efficiency was less accurate than using corrected milk yield. Effects of genetic groups, stations, season of freshening, year of freshening, and heterosis were similar for gross efficiency and corrected milk yield, but different from those for milk. Therefore, corrected milk yield performed the same function as feed efficiency with higher accuracy</abstract><cop>Savoy, IL</cop><pub>Am Dairy Sci Assoc</pub><pmid>1597582</pmid><doi>10.3168/jds.S0022-0302(92)77877-1</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-0302 |
| ispartof | Journal of dairy science, 1992-05, Vol.75 (5), p.1273-1280 |
| issn | 0022-0302 1525-3198 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_72997387 |
| source | MEDLINE; Elsevier ScienceDirect Journals; EZB-FREE-00999 freely available EZB journals; Periodicals Index Online |
| subjects | Animals Biological and medical sciences Breeding CANADA Cattle - genetics Cattle - physiology Eating EFFICACITE ALIMENTAIRE EFICIENCIA DE CONVERSION DEL PIENSO FACTEUR DU MILIEU FACTORES AMBIENTALES Female Food industries Fundamental and applied biological sciences. Psychology Genotype Hybrid Vigor Lactation - genetics Least-Squares Analysis Milk - secretion Milk and cheese industries. Ice creams PRODUCTOS DEL CRUZAMIENTO PRODUIT DE CROISEMENT RACE RAZAS RENDEMENT LAITIER RENDIMIENTO LECHERO VACAS LECHERAS VACHE LAITIERE |
| title | Evaluation of various measures of and factors influencing feed efficiency of dairy cattle |
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