The influence of age and breed of cow on colostrum indicators of suckled beef calves

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dc.citation.volume76en_US
dc.contributor.authorHickson, REen_US
dc.contributor.authorBack, PJen_US
dc.contributor.authorMartin, NPen_US
dc.contributor.authorKenyon, PRen_US
dc.contributor.authorMorris, STen_US
dc.coverage.spatialAdelaide, Australiaen_US
dc.date.available2016-07-07en_US
dc.date.finish-date2016-07-07en_US
dc.date.issued2016-07-07en_US
dc.date.start-date2016-07-04en_US
dc.description.abstractRearing a calf to weaning is a key measure of performance in a beef breeding cow herd. Adequate intake of colostral antibodies by the calf in the first few hours of life is important for passive transfer of immunity, and so is beneficial for calf survival. This experiment aimed to examine the role of udder conformation, maternal age and breed-cross on the colostral status of suckled calves. Udder conformation of Angus, Angus-cross-Friesian, Angus-cross-Jersey and Angus-cross-Kiwicross cows was scored according to Animal Evaluation Limited and BreedPlan standards, and colostral status of calves was determined based on gamma glutamyltransferase activity, immunoglobulin G and total protein concentrations at 24-48 hours of age. Udder conformation was similar (P>0.05) among breed-crosses except Angus cows had looser front udder attachment, lower rear udder attachment and less desirable udders overall than Angus-cross-dairy cows (P<0.05). Most udder conformation scores did not affect colostral status of calves. The exception was teat placement score, for which more outward-pointing teats were associated with improved colostrum status of calves (P<0.05). Survival to weaning was greater for calves with adequate compared with inadequate colostral status (P<0.001).en_US
dc.description.confidentialfalseen_US
dc.description.publication-statusPublisheden_US
dc.format.extent163 - 168 (6)en_US
dc.identifier.citationProceedings of the New Zealand Society of Animal Production, 2016, 76 pp. 163 - 168 (6)en_US
dc.identifier.elements-id279169
dc.identifier.harvestedMassey_Dark
dc.identifier.issn1176-5283en_US
dc.publisherNew Zealand Society of Animal Productionen_US
dc.relation.isPartOfProceedings of the New Zealand Society of Animal Productionen_US
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
dc.sourceNew Zealand Society of Animal Production (inc)en_US
dc.subjectcolostrumen_US
dc.subjectsurvivalen_US
dc.subjectudder conformationen_US
dc.subjectbeef calvesen_US
dc.subject.anzsrc0702 Animal Productionen_US
dc.titleThe influence of age and breed of cow on colostrum indicators of suckled beef calvesen_US
dc.typeConference Paper
pubs.notesNot knownen_US
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Agriculture & Environment
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