1. Research UNE
  2. UNE
  3. Journal Article
Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/15103
Full metadata record
DC FieldValueLanguage
dc.contributor.authorMoghaddar, Nasiren
dc.contributor.authorEftekhtar, Shahroudi Fen
dc.contributor.authorNasiri, Moghaddam Hen
dc.date.accessioned2014-05-20T11:28:00Z-
dc.date.issued2001-
dc.identifier.citationPajouhesh-va-Sazandegi, 14(2), p. 26-29en
dc.identifier.issn1019-9632en
dc.identifier.urihttps://hdl.handle.net/1959.11/15103-
dc.languagefaen
dc.publisherMinistry of Agricultureen
dc.relation.ispartofPajouhesh-va-Sazandegien
dc.titleStudy of environmental effects and predicting phenotypic and genotypic parameters of annual and cululative records in Holstein dairy cattleen
dc.typeJournal Articleen
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameNasiren
local.contributor.firstnameShahroudi Fen
local.contributor.firstnameMoghaddam Hen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830302 Dairy Cattleen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.emailnmoghad4@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20131216-114418en
local.publisher.placeIslamic Republic of Iranen
local.identifier.runningnumber51en
local.format.startpage26en
local.format.endpage29en
local.peerreviewedYesen
local.identifier.volume14en
local.identifier.issue2en
local.contributor.lastnameMoghaddaren
local.contributor.lastnameEftekhtaren
local.contributor.lastnameNasirien
dc.identifier.staffune-id:nmoghad4en
local.booktitle.translatedReseach and Developmenten
local.profile.orcid0000-0002-3600-7752en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:15319en
local.identifier.handlehttps://hdl.handle.net/1959.11/15103en
dc.identifier.academiclevelAcademicen
local.abstract.englishTo study the factors that affect monthly and cummulative milk production, ten years records of a holstein dairy herd were used. Average daily milk production in ail records was 18.35±7.71 in monthly records, year of calving was highly significant except in 10th month (p<0.01). In first month of lactation about ten percent of phenotypic variation was due to year of calving and this amount decreased to one percent at the latest month of lactation. The effect of season of calving in all monthly records except 2nd and 10th month of lactation was highly significant (p<0.01). The effect of calving season from first to 7th month of production increased and after that decreased. The effect of age of cow at calving was significant until 7th month of production (p<0.01), and showed a descending trend from first to the end of a lactation. Linear regression of monthly production from days open was significant only in 9th and 10th month of lactation (p<0.05). In all of the cummulative records the effect of year of calving was significant and the maximum effect was on cummulative records of 90 to 150 days. The effect of season of calving on all of the cummulative records was significant (p<0.05) and its influence increased to 240 days cummulative records and after that decreased. The effect of age of cow at calving was significant in all cummulative records (p<0.0) and its effect decreased during a lactation from start to end. Days open was significant only in 305 days milk production (p<0.05). The heritability of 305 days milk production was calculated by three method (Half sib correlation, MUVQUE and REML estimation of variance component) and was 0.257±0.127, 0.312 and 0.266 respectively. Repeatability of 30S days milk production was 0.325±0.047.en
local.title.maintitleStudy of environmental effects and predicting phenotypic and genotypic parameters of annual and cululative records in Holstein dairy cattleen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.relation.urlhttp://www.sid.ir/en/ViewPaper.asp?ID=278403en
local.search.authorMoghaddar, Nasiren
local.search.authorEftekhtar, Shahroudi Fen
local.search.authorNasiri, Moghaddam Hen
local.uneassociationUnknownen
local.year.published2001en
Appears in Collections:Journal Article
Files in This Item:
2 files
File Description SizeFormat 
Show simple item record

Page view(s)

1,096
checked on Feb 4, 2024
Google Media

Google ScholarTM

Check


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.