Weaning, yearling, and preharvest ultrasound measures of fat and muscle area in steers, bulls, and heifers

Journal of Animal Science

Volumn 80, Issue 11, 2002, Pages 2817-2824

  Crews Jr , D H ^a,b   Shannon, N H ^a   Crews, R E ^a   Kemp, R A ^a  

^a LETHBRIDGE RESEARCH CENTRE   (Canada)

^b NONE   (Canada)

Author keywords

Accuracy; Beef Cattle; Carcass Composition; Ultrasound

Indexed keywords

ANIMALIA; BOS TAURUS;

ADIPOSE TISSUE; AGE; ANIMAL; ARTICLE; BODY COMPOSITION; CATTLE; ECHOGRAPHY; FEMALE; GROWTH, DEVELOPMENT AND AGING; HISTOLOGY; MALE; MEAT; PHENOTYPE; PHYSIOLOGY; SENSITIVITY AND SPECIFICITY; SEXUAL DEVELOPMENT; SKELETAL MUSCLE; STANDARD; WEANING;

ADIPOSE TISSUE; AGE FACTORS; ANIMALS; BODY COMPOSITION; CATTLE; FEMALE; MALE; MEAT; MUSCLE, SKELETAL; PHENOTYPE; SENSITIVITY AND SPECIFICITY; SEX CHARACTERISTICS; WEANING;

EID: 0036835020     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/2002.80112817x     Document Type: Article

References (14)

1. BIF. 1996. Guidelines for Uniform Beef Improvement Programs. 7th ed. Kansas State Univ., Colby.
2. Bergen, R. D., J. J. McKinnon, D. A. Christensen, and N. Kohle. 1996. Prediction of lean yield in yearling bulls using real-time ultrasound. Can. J. Anim. Sci. 76:305-311.
3. Bergen, R. D., J. J. McKinnon, D. A. Christensen, N. Kohle, and A. Belanger. 1997. Use of real-time ultrasound of evaluate live animal carcass traits in young performance-tested beef bulls. J. Anim. Sci. 75:2300-2307.
4. Bertrand, J. K., D. W. Moser, and W. O. Herring. 2000. Beef genetic evaluation programs for carcass traits: current situation and future possibilities. J. Anim. Sci. (Suppl. 1):57(Abstr.).
5. Brethour, J. R. 1992. The repeatability and accuracy of ultrasound in measuring backfat of cattle. J. Anim. Sci. 70:1039-1044.
6. Crews, D. H., Jr., and R. A. Kemp. 2001. Genetic parameters for ultrasound and carcass measures of yield and quality among replacement and slaughter beef cattle. J. Anim. Sci. 79:3008-3020.
7. Faulkner, D. B., D. F. Parrett, F. K. McKeith, and L. L. Berger. 1990. Prediction of fat cover and carcass composition from live and carcass measurements. J. Anim. Sci. 68:604-610.
8. Hassen, A., D. E. Wilson, R. E. Willham, G. H. Rouse, and A. H. Trenkle. 1998. Evaluation of ultrasound measurements of fat thickness and longissimus muscle area in feedlot cattle: Assessment of accuracy and repeatability. Can. J. Anim. Sci. 78:277-285.
9. Herring, W. O., D. C. Miller, J. K. Bertrand, and L. L. Benyshek. 1994. Evaluation of machine, technician, and interpreter effects on ultrasonic measures of backfat and longissimus muscle area in beef cattle. J. Anim. Sci. 72:2216-2226.
10. Moeller, S. J., and L. L. Christian. 1998. Evaluation of the accuracy and repeatability of real-time ultrasonic measurements of back-fat and loin muscle area in swine using multiple statistical analysis procedures. J. Anim. Sci. 76:2503-2514.
11. Mwansa, P. B., R. A. Kemp, D. H. Crews, Jr., J. P. Kastelic, D. R. C. Bailey, and G. H. Coulter. 2000. Comparison of models for genetic evaluation of scrotal circumference in crossbred bulls. J. Anim. Sci. 78:275-282.
12. Perkins, T. L., R. D. Green, and K. E. Hamlin. 1992. Evaluation of ultrasonic estimates of carcass fat thickness and longissimus muscle area in beef cattle. J. Anim. Sci. 70:1002-1010.
13. Smith, M. T., J. W. Oltjen, H. G. Dolezal, D. R. Gill, and B. D. Behrens. 1992. Evaluation of ultrasound for prediction of carcass fat thickness and longissimus muscle area in feedlot steers. J. Anim. Sci. 70:29-37.
14. Wilson, D. E. 1992. Application of ultrasound for genetic improvement. J. Anim. Sci. 70:973-983.