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dc.contributor.authorCoffey, E.L.
dc.contributor.authorHoran, B.
dc.contributor.authorEvans, R.D.
dc.contributor.authorBerry, D.P.
dc.date.accessioned2023-10-10T14:24:33Z
dc.date.available2023-10-10T14:24:33Z
dc.date.issued2016-07-31
dc.identifier.citationE.L. Coffey, B. Horan, R.D. Evans, D.P. Berry, Milk production and fertility performance of Holstein, Friesian, and Jersey purebred cows and their respective crosses in seasonal-calving commercial farms, Journal of Dairy Science, Volume 99, Issue 7, 2016, Pages 5681-5689, ISSN 0022-0302, https://doi.org/10.3168/jds.2015-10530.en_US
dc.identifier.urihttp://hdl.handle.net/11019/3317
dc.descriptionpeer-revieweden_US
dc.description.abstractThere is renewed interest in dairy cow crossbreeding in Ireland as a means to further augment productivity and profitability. The objective of the present study was to compare milk production and fertility performance for Holstein, Friesian, and Jersey purebred cows, and their respective crosses in 40 Irish spring-calving commercial dairy herds from the years 2008 to 2012. Data on 24,279 lactations from 11,808 cows were available. The relationship between breed proportion, as well as heterosis and recombination coefficients with performance, was quantified within a mixed model framework that also contained the fixed effects of parity; cow and contemporary group of herd-year-season of calving were both included as random effects in the mixed model. Breed proportion was associated with all milk production parameters investigated. Milk yield was greatest for Holstein (5,217kg), intermediate for Friesian (4,591kg), and least for Jersey (4,230kg), whereas milk constituents (i.e., fat and protein concentration) were greatest for Jersey (9.38%), intermediate for Friesian (7.91%), and least for Holstein (7.75%). Yield of milk solids in crossbred cows exceeded their respective parental average performance; greatest milk solids yield (i.e., fat kg + protein kg) was observed in the Holstein × Jersey first-cross, yielding 25kg more than the mid-parent mean. There was no consistent breed effect on the reproductive traits investigated. Relative to the mid-parent mean, Holstein × Jersey cows calved younger as heifers and had a shorter calving interval. Friesian × Jersey first-cross cows also had a shorter calving interval relative to their mid-parent mean. Results were consistent with findings from smaller-scale controlled experiments. Breed complementarity and heterosis attainable from crossbreeding resulted in superior animal performance and, consequently, greater expected profitability in crossbred cows compared with their respective purebreds.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofseriesJournal of Dairy Science;Vol 99
dc.rights© 2016 American Dairy Science Association®.
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.subjectcrossbreedingen_US
dc.subjectJerseyen_US
dc.subjectheterosisen_US
dc.subjectHolsteinen_US
dc.subjectFriesianen_US
dc.titleMilk production and fertility performance of Holstein, Friesian, and Jersey purebred cows and their respective crosses in seasonal-calving commercial farmsen_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.3168/jds.2015-10530
dc.contributor.sponsorIrish Dairy Levyen_US
dc.source.volume99
dc.source.issue7
dc.source.beginpage5681
dc.source.endpage5689
refterms.dateFOA2023-10-10T14:24:34Z
dc.source.journaltitleJournal of Dairy Science


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© 2016 American Dairy Science Association®.
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