Genetic parameters for carcass traits and stayability in Red Angus cattle

Genetic parameters for carcass traits and stayability in Red Angus cattle

An abstract of a study by Boldt et al examining the genetic parameters for carcass traits and stayability in Red Angus cattle is presented. In Red Angus cattle, the stayability (STAY) Expected Progeny Difference (EPD) predicts the probability of a female producing five consecutive calves by 6 years...

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Bibliographic Details
Published in:Journal of animal science Vol. 95; p. 89
Main Authors: Boldt, R J, Speidel, S E, Thomas, M G, Keenan, L D
Format: Journal Article
Language:English
Published: Champaign Oxford University Press 01-08-2017
Subjects:
Age
Animal reproduction
Bovidae
Calves
Cattle
Genetics
Meat
Progeny
Ultrasound
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Summary:An abstract of a study by Boldt et al examining the genetic parameters for carcass traits and stayability in Red Angus cattle is presented. In Red Angus cattle, the stayability (STAY) Expected Progeny Difference (EPD) predicts the probability of a female producing five consecutive calves by 6 years of age. A fundamental issue that arises with genetic prediction for STAY is animal's accuracy values tend to improve later in life. An opportunity to overcome this is to use phenotypes recorded at younger ages to increase accuracy of STAY EPD earlier in an animal's life. Therefore, the objective of this study was to estimate genetic relationships between STAY and HCW, ribeye area, back fat, and marbling score, as well as their indicator traits, ultrasound ribeye area, ultrasound back fat, and ultrasound intramuscular fat percentage.
ISSN:0021-8812
1525-3163
DOI:10.2527/asasann.2017.180