Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/4354
Title: Estimates of genetic correlations between live ultrasound scan traits and days to calving in Hereford cattle
Contributor(s): Meyer, Karin  (author); Johnston, David  (author)
Publication Date: 2003
Handle Link: https://hdl.handle.net/1959.11/4354
Abstract: Restricted maximum likelihood estimates of genetic correlations between between live ultrasound scan measurements and days to calving were obtained from bivariate analyses. Scan traits considered were fat depth at the 12/13-th rib, P8 fat depth, percentage intramuscular fat and eye muscle area, treating records for heifers or steers and bulls as separate traits. Analyses were carried out including all days to calving records, and considering the subset of cows only which had a 'complete sequence' of records, beginning with a first mating record. Heritability estimates for days to calving were low, about 3% with a repeatability of 18%. Estimates of genetic correlations were low to moderate, and consistently negative for fat depth measurements, i.e. animals with a higher genetic potential for fat deposition tended to have better reproductive performance.
Publication Type: Conference Publication
Conference Details: 15th Conference of the Association for the Advancement of Animal Breeding and Genetics, Melbourne, Australia, 7-11 July, 2003
Source of Publication: Proceedings of the 15th Conference of the Association for the Advancement of Animal Breeding and Genetics, p. 387-390
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Melbourne, VIC, Australia
ISSN: 1328-3227
Field of Research (FOR): 070201 Animal Breeding
Socio-Economic Objective (SEO): 830301 Beef Cattle
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links: http://trove.nla.gov.au/work/22223828?selectedversion=NBD24379203
http://www.aaabg.org/livestocklibrary/2003/387-390.pdf
Statistics to Oct 2018: Visitors: 47
Views: 47
Downloads: 0
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

Files in This Item:
2 files
File Description SizeFormat 
Show full item record

Page view(s)

78
checked on May 3, 2019
Google Media

Google ScholarTM

Check


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