Publication:
Change of daily milk yield during estrous period in holstein cattle raised under Mediterranean climate

dc.contributor.authorDuru, Serdar
dc.contributor.authorBaycan, Süleyman Can
dc.contributor.buuauthorDURU, SERDAR
dc.contributor.buuauthorBAYCAN, SÜLEYMAN CAN
dc.contributor.departmentUludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü
dc.contributor.orcid0000-0001-5243-4458
dc.contributor.orcid0000-0002-4134-5641
dc.contributor.researcheridAAG-8259-2021
dc.contributor.researcheridI-9517-2017
dc.date.accessioned2024-10-02T11:36:06Z
dc.date.available2024-10-02T11:36:06Z
dc.date.issued2019-07-01
dc.description.abstractThis study was conducted to determine the effect of estrus on the daily milk yield in Holstein cows and to investigate the chance of using the possible milk yield changes in determining the estrus. During the 3-year period of the study, 103 dairy cows were observed 4days before and 4days after daily milk yield of 240 estruses and a total of 2174 daily milk yields were evaluated. Variance analysis was used to determine the factors affecting the daily milk yield, and the LSD test was used for multiple comparisons. Insemination year, insemination season, number of lactation, milk yield group, and daily milk yield of lactation period were found to be significant (P<0.01). On the other hand, the effect of estrus days on milk yield was insignificant. In the days of estrus, the least square mean of milk yield is 31.0kg, while the lowest and highest milk yields are 10.2kg and 62.9kg. The daily milk yield in the estruses decreased by an average of 300g, which decreased to 400g by continuing 1day after the estruses. The next day, however, it increased rapidly by 600g, and then dropped again, probably due to the effect of metestrus. It was found that, among all estruses, 31.3% of cows decreased their milk yield, whereas 26.5% of cows increased their milk yield. However, 42.2% of cows both decreased and increased their milk yield in different estruses. The interval between birth and the first insemination after were found to be longer (97.5days and 92.9days) at high milk-yielding cows compared to the low milk-yielding cows. According to the results of this study, daily milk yield changes could not be used as an estrus indicator.
dc.identifier.doi10.1007/s11250-019-01857-7
dc.identifier.eissn1573-7438
dc.identifier.endpage1577
dc.identifier.issn0049-4747
dc.identifier.issue6
dc.identifier.startpage1571
dc.identifier.urihttps://doi.org/10.1007/s11250-019-01857-7
dc.identifier.urihttps://link.springer.com/article/10.1007/s11250-019-01857-7
dc.identifier.urihttps://hdl.handle.net/11452/45684
dc.identifier.volume51
dc.identifier.wos000473214500031
dc.indexed.wosWOS.SCI
dc.language.isoen
dc.publisherSpringer
dc.relation.journalTropical Animal Health and Production
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDairy-cows
dc.subjectEstrus
dc.subjectBehavior
dc.subjectCycles
dc.subjectConception
dc.subjectOvulation
dc.subjectLevel
dc.subjectHerds
dc.subjectAge
dc.subjectMilk yield
dc.subjectEstrogen
dc.subjectEstrus
dc.subjectHolstein
dc.subjectScience & technology
dc.subjectLife sciences & biomedicine
dc.subjectAgriculture, dairy & animal science
dc.subjectVeterinary sciences
dc.subjectAgriculture
dc.titleChange of daily milk yield during estrous period in holstein cattle raised under Mediterranean climate
dc.typeArticle
dspace.entity.typePublication
relation.isAuthorOfPublicationee735fee-b7e8-4c00-b9b0-ab57071705db
relation.isAuthorOfPublicationf0816048-fc2b-4484-aaeb-df78a6a47ad4
relation.isAuthorOfPublication.latestForDiscoveryee735fee-b7e8-4c00-b9b0-ab57071705db

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