Analysis of Environmental Effects on Test Day Milk Yields of Sarda Dairy Ewes
Temporal evolution of Sarda ewes milk production was analyzed with mixed linear models and factor analysis to investigate environmental effects on the shape of lactation curves and on milk yields during different lactation stages. Parity, year of production, level of altitude, and flock within altit...
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| Veröffentlicht in: | Journal of dairy science 1999-10, Vol.82 (10), p.2212-2217 |
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| container_title | Journal of dairy science |
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| creator | Macciotta, N.P.P Cappio-Borlino, A Pulina, G |
| description | Temporal evolution of Sarda ewes milk production was analyzed with mixed linear models and factor analysis to investigate environmental effects on the shape of lactation curves and on milk yields during different lactation stages. Parity, year of production, level of altitude, and flock within altitude affected milk yield, whereas the effect of type of lambing was not significant. Lactation curves pertaining to the three altitudes were clearly different. Factor analysis suggested an independence among yields recorded during different phases of lactation and a specific behavior of (co)variances structure among test day yields obtained in mountains compared with hills and plains. |
| doi_str_mv | 10.3168/jds.S0022-0302(99)75467-6 |
| format | Article |
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Parity, year of production, level of altitude, and flock within altitude affected milk yield, whereas the effect of type of lambing was not significant. Lactation curves pertaining to the three altitudes were clearly different. Factor analysis suggested an independence among yields recorded during different phases of lactation and a specific behavior of (co)variances structure among test day yields obtained in mountains compared with hills and plains.</description><identifier>ISSN: 0022-0302</identifier><identifier>EISSN: 1525-3198</identifier><identifier>DOI: 10.3168/jds.S0022-0302(99)75467-6</identifier><identifier>PMID: 10531609</identifier><identifier>CODEN: JDSCAE</identifier><language>eng</language><publisher>Savoy, IL: Elsevier Inc</publisher><subject>Altitude ; Animal productions ; Animals ; Biological and medical sciences ; date ; Environment ; ewe milk ; ewes ; factor analysis ; Female ; Fundamental and applied biological sciences. Psychology ; genotype-environment interaction ; Italy ; Lactation ; lactation curve ; lactation number ; Linear Models ; litter size ; milk recording ; milk yield ; Mother. Fetoplacental unit. Mammary gland. Milk ; Parity ; Pregnancy ; Pregnancy. Parturition. Lactation ; Sheep - physiology ; sheep lactation curves ; Terrestrial animal productions ; test day ; Vertebrates ; Vertebrates: reproduction</subject><ispartof>Journal of dairy science, 1999-10, Vol.82 (10), p.2212-2217</ispartof><rights>1999 American Dairy Science Association</rights><rights>2000 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c537t-75f50dcec4fe4f235c705b51bede55a6d4a65a41aa7e9ff36414a9f3c7cdf2af3</citedby><cites>FETCH-LOGICAL-c537t-75f50dcec4fe4f235c705b51bede55a6d4a65a41aa7e9ff36414a9f3c7cdf2af3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.3168/jds.S0022-0302(99)75467-6$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3550,27869,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1238085$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10531609$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Macciotta, N.P.P</creatorcontrib><creatorcontrib>Cappio-Borlino, A</creatorcontrib><creatorcontrib>Pulina, G</creatorcontrib><title>Analysis of Environmental Effects on Test Day Milk Yields of Sarda Dairy Ewes</title><title>Journal of dairy science</title><addtitle>J Dairy Sci</addtitle><description>Temporal evolution of Sarda ewes milk production was analyzed with mixed linear models and factor analysis to investigate environmental effects on the shape of lactation curves and on milk yields during different lactation stages. Parity, year of production, level of altitude, and flock within altitude affected milk yield, whereas the effect of type of lambing was not significant. Lactation curves pertaining to the three altitudes were clearly different. Factor analysis suggested an independence among yields recorded during different phases of lactation and a specific behavior of (co)variances structure among test day yields obtained in mountains compared with hills and plains.</description><subject>Altitude</subject><subject>Animal productions</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>date</subject><subject>Environment</subject><subject>ewe milk</subject><subject>ewes</subject><subject>factor analysis</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>genotype-environment interaction</subject><subject>Italy</subject><subject>Lactation</subject><subject>lactation curve</subject><subject>lactation number</subject><subject>Linear Models</subject><subject>litter size</subject><subject>milk recording</subject><subject>milk yield</subject><subject>Mother. Fetoplacental unit. Mammary gland. Milk</subject><subject>Parity</subject><subject>Pregnancy</subject><subject>Pregnancy. Parturition. Lactation</subject><subject>Sheep - physiology</subject><subject>sheep lactation curves</subject><subject>Terrestrial animal productions</subject><subject>test day</subject><subject>Vertebrates</subject><subject>Vertebrates: reproduction</subject><issn>0022-0302</issn><issn>1525-3198</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>K30</sourceid><recordid>eNqNkU1v1DAQhi0EokvhL0AQqMAhxXbiOD5W2-VDasVh2wMna9YfrRcnKXa21f57ZjcrQJy4eGTNM-_MvEPIa0ZPK9a0H9c2ny4p5bykFeXvlfogRd3IsnlEZkxwUVZMtY_J7DdyRJ7lvMYv41Q8JUeMChSiakYuz3qI2xxyMfhi0d-HNPSd60eIxcJ7Z0ZM9MWVy2NxDtviMsQfxffgot0XLCFZwERI22Lx4PJz8sRDzO7FIR6T60-Lq_mX8uLb56_zs4vSiEqOpRReUGucqb2rPa-EkVSsBFs564SAxtbQCKgZgHTK-6qpWQ3KV0Ya6zn46picTLp3afi5weF0F7JxMULvhk3WjeK0ZhVF8M0_4HrYJFw5a9ZKSZVsW46UmiiThpyT8_ouhQ7SVjOqd45rdFzvHdc7O7VSeu-4brD25aHDZtU5-1flZDECbw8AZAPRJ-hNyH84XrW0FYi9m7DbcHP7EJLTuYMYUZXturd8NwvHAyL5aiI9DBpuEopdLznFdbmqW3yQmE-EwxvcB5d0NsH1xlnUNaO2Q_iPzX4BHFO1fA</recordid><startdate>19991001</startdate><enddate>19991001</enddate><creator>Macciotta, N.P.P</creator><creator>Cappio-Borlino, A</creator><creator>Pulina, G</creator><general>Elsevier Inc</general><general>Am Dairy Sci Assoc</general><general>American Dairy Science Association</general><scope>6I.</scope><scope>AAFTH</scope><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>19991001</creationdate><title>Analysis of Environmental Effects on Test Day Milk Yields of Sarda Dairy Ewes</title><author>Macciotta, N.P.P ; Cappio-Borlino, A ; Pulina, G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c537t-75f50dcec4fe4f235c705b51bede55a6d4a65a41aa7e9ff36414a9f3c7cdf2af3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Altitude</topic><topic>Animal productions</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>date</topic><topic>Environment</topic><topic>ewe milk</topic><topic>ewes</topic><topic>factor analysis</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. 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Parity, year of production, level of altitude, and flock within altitude affected milk yield, whereas the effect of type of lambing was not significant. Lactation curves pertaining to the three altitudes were clearly different. Factor analysis suggested an independence among yields recorded during different phases of lactation and a specific behavior of (co)variances structure among test day yields obtained in mountains compared with hills and plains.</abstract><cop>Savoy, IL</cop><pub>Elsevier Inc</pub><pmid>10531609</pmid><doi>10.3168/jds.S0022-0302(99)75467-6</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of dairy science, 1999-10, Vol.82 (10), p.2212-2217 |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Periodicals Index Online; ScienceDirect Journals (5 years ago - present) |
| subjects | Altitude Animal productions Animals Biological and medical sciences date Environment ewe milk ewes factor analysis Female Fundamental and applied biological sciences. Psychology genotype-environment interaction Italy Lactation lactation curve lactation number Linear Models litter size milk recording milk yield Mother. Fetoplacental unit. Mammary gland. Milk Parity Pregnancy Pregnancy. Parturition. Lactation Sheep - physiology sheep lactation curves Terrestrial animal productions test day Vertebrates Vertebrates: reproduction |
| title | Analysis of Environmental Effects on Test Day Milk Yields of Sarda Dairy Ewes |
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