Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/28911
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dc.contributor.authorLaporta, Jen
dc.contributor.authorFerreira, F Cen
dc.contributor.authorOuellet, Ven
dc.contributor.authorDado-Senn, Ben
dc.contributor.authorAlmeida, A Ken
dc.contributor.authorDe Vries, Aen
dc.contributor.authorDahl, G Een
dc.date.accessioned2020-06-24T05:30:29Z-
dc.date.available2020-06-24T05:30:29Z-
dc.date.issued2020-08-
dc.identifier.citationJournal of Dairy Science, 103(8), p. 7555-7568en
dc.identifier.issn1525-3198en
dc.identifier.issn0022-0302en
dc.identifier.urihttps://hdl.handle.net/1959.11/28911-
dc.description.abstractRecords of late-gestation heat stress studies conducted over 10 consecutive years in Florida were pooled and analyzed to test the hypothesis that maternal hyperthermia during late gestation impairs performance of the offspring across multiple generations and lactations, ultimately impeding the profitability of the US dairy sector. Dry-pregnant multiparous dams were actively cooled (CL; shade of a freestall barn, fans and water soakers, n = 196) or not (HT; shade only, n = 198) during the last 46 d of gestation, concurrent with the entire dry period. After data mining, records of 156 daughters (F<sub>1</sub>) that were born either to CL (CL<sub>F1</sub>, n = 77) or HT dams (HT<sub>F1</sub>, n = 79) and 45 granddaughters (F<sub>2</sub>) that were born either to CL<sub>F1</sub> (CL<sub>F2</sub>, n = 24) or HT<sub>F1</sub> (HT<sub>F2</sub>, n = 21) were used in the analysis. Life events and daily milk yield for 3 lactations of daughters and granddaughters were obtained. Milk yield, reproductive performance, and productive life data were analyzed using MIXED and GLIMMIX procedures, and lifespan was analyzed using PHREG and LIFETEST procedures of SAS (SAS Institute Inc., Cary, NC). Milk production of HT<sub>F1</sub> was reduced in their first (2.2 kg/d), second (2.3 kg/d), and third lactations (6.5 kg/d) compared with CL<sub>F1</sub>. More HT<sub>F1</sub> were culled before first calving, and the productive life and lifespan of HT<sub>F1</sub> were reduced relative to CL<sub>F1</sub> (4.9 and 11.7 mo, respectively). The granddaughters (HT<sub>F2</sub>) born to HT<sub>F1</sub> produced less milk in their first lactation (1.3 kg/d) relative to granddaughters (CL<sub>F2</sub>) born to CL<sub>F1</sub>. More HT<sub>F2</sub> were culled before first breeding relative to CL<sub>F2</sub>; however, productive life and lifespan were not different between HT<sub>F2</sub> and CL<sub>F2</sub> animals. An economic analysis was then performed based on the number of heat stress days, dry cows per state, and the aforementioned impairments on daughters' lifespans and milk production. Collectively in the United States, the economic losses for additional heifer rearing cost, reduced productive life, and reduced milk yield of the F<sub>1</sub> offspring were estimated at $134, $90, and $371 million per year, respectively. In summary, late-gestation heat stress exerts carryover effects on at least 2 generations. Providing heat abatement to dry-pregnant dams is important to rescue milk loss of the dam and to prevent losses in their progeny.en
dc.languageenen
dc.publisherElsevier Incen
dc.relation.ispartofJournal of Dairy Scienceen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleLate-gestation heat stress impairs daughter and granddaughter lifetime performanceen
dc.typeJournal Articleen
dc.identifier.doi10.3168/jds.2020-18154en
dcterms.accessRightsUNE Greenen
local.contributor.firstnameJen
local.contributor.firstnameF Cen
local.contributor.firstnameVen
local.contributor.firstnameBen
local.contributor.firstnameA Ken
local.contributor.firstnameAen
local.contributor.firstnameG Een
local.subject.for2008070299 Animal Production not elsewhere classifieden
local.subject.seo2008830310 Sheep - Meaten
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailadealme2@une.edu.auen
local.output.categoryC1en
local.grant.number2019-67015-29445en
local.grant.number2015-67015-23409en
local.grant.number2010-85122-20623en
local.grant.numberNSF 1247362en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeUnited States of Americaen
local.format.startpage7555en
local.format.endpage7568en
local.identifier.scopusid85086378153en
local.peerreviewedYesen
local.identifier.volume103en
local.identifier.issue8en
local.access.fulltextYesen
local.contributor.lastnameLaportaen
local.contributor.lastnameFerreiraen
local.contributor.lastnameOuelleten
local.contributor.lastnameDado-Sennen
local.contributor.lastnameAlmeidaen
local.contributor.lastnameDe Vriesen
local.contributor.lastnameDahlen
dc.identifier.staffune-id:adealme2en
local.profile.orcid0000-0003-3065-0701en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/28911en
local.date.onlineversion2020-06-10-
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleLate-gestation heat stress impairs daughter and granddaughter lifetime performanceen
local.relation.fundingsourcenoteUSDA-Agriculture and Food Research Institute (USDA/NIFA AFRI, Washington, DC) Foundational Program Awarden
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorLaporta, Jen
local.search.authorFerreira, F Cen
local.search.authorOuellet, Ven
local.search.authorDado-Senn, Ben
local.search.authorAlmeida, A Ken
local.search.authorDe Vries, Aen
local.search.authorDahl, G Een
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/28550346-1755-4e7f-a88b-8a471572cc6ben
local.uneassociationNoen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.year.available2020en
local.year.published2020en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/28550346-1755-4e7f-a88b-8a471572cc6ben
local.fileurl.openpublishedhttps://rune.une.edu.au/web/retrieve/d1364841-c1ed-4d88-8c91-7aa1ab262519en
local.subject.for2020300301 Animal growth and developmenten
local.subject.for2020300307 Environmental studies in animal productionen
local.subject.for2020300306 Animal welfareen
local.subject.seo2020100412 Sheep for meaten
dc.notification.token0206c78a-eaef-4efe-b356-cd9f4cc0444fen
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School of Environmental and Rural Science
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