HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Casas, E. Articles by Cundiff, L. V. Search for Related Content PubMed PubMed Citation Articles by Casas, E. Articles by Cundiff, L. V.

Postweaning growth and carcass traits in crossbred cattle from Hereford, Angus, Norwegian Red, Swedish Red and White, Friesian, and Wagyu maternal grandsires^1,2

US Meat Animal Research Center, USDA, ARS, Clay Center, NE 68933-0166

³ Corresponding author: casas{at}email.marc.usda.gov

The objective of this study was to characterize breeds representing diverse biological types for postweaning growth and carcass composition traits in terminal crossbred cattle. Postweaning growth and carcass traits were analyzed on 434 steers and 373 heifers obtained by mating F₁ cows to Charolais sires. Maternal grandsires represented Hereford, Angus, and MARC III ( Hereford, Angus, Pinzgauer, and Red Poll) dams to Hereford or Angus (British Breeds), Norwegian Red, Swedish Red and White, Wagyu, or Friesian breeds. Breed groups were slaughtered serially in each of 2 yr (2002 and 2003). Postweaning ADG, slaughter weight, hot carcass weight, dressing percentage, percentage Choice, LM area, marbling score, USDA yield grade, fat thickness, retail product yield (percentage), retail product weight, fat yield (percentage), fat weight, bone yield (percentage), and bone weight were analyzed. Maternal grandsire breed was significant (P < 0.05) for all traits except dressing percentage, percentage Choice, and LM area. Marbling score for animals with Norwegian Red, Wagyu, Swedish Red and White, British Breeds, and Friesian inheritance was 550, 544, 532, 530, and 515, respectively (SEM = 8). Retail product weight for these animals was 224, 211, 227, 223, and 223 kg, respectively (SEM = 2 kg). Maternal granddam breed was not significant for any of the traits analyzed. Grandsire breed effects can be optimized by selection and use of appropriate crossbreeding systems.

Key Words: beef cattle • breed • carcass composition • growth

This article has been cited by other articles:

				E. Casas, D. D. Lunstra, L. V. Cundiff, and J. J. Ford Growth and pubertal development of F1 bulls from Hereford, Angus, Norwegian Red, Swedish Red and White, Friesian, and Wagyu sires J Anim Sci, November 1, 2007; 85(11): 2904 - 2909. [Abstract] [Full Text] [PDF]

				E. Casas, S. N. White, S. D. Shackelford, T. L. Wheeler, M. Koohmaraie, G. L. Bennett, and T. P. L. Smith Assessing the association of single nucleotide polymorphisms at the thyroglobulin gene with carcass traits in beef cattle J Anim Sci, November 1, 2007; 85(11): 2807 - 2814. [Abstract] [Full Text] [PDF]