Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-27T19:20:52.495Z Has data issue: false hasContentIssue false
  • English
  • Français

A note on the repeatability of ultrasonic backfat measurements in pigs

Published online by Cambridge University Press:  02 September 2010

A. J. Webb
A. J. Webb
Affiliation:
ARC Animal Breeding Research Organisation, West Mains Road, Edinburgh EH9 3JQ
Get access

Summary

The repeatability of ultrasonic backfat readings under field conditions was measured in a sample of 57 adult male (boars) and 77 young adult female (gilts) pigs. Repeatabilities of individual fat depths 6·5 cm off the mid-line at the shoulder, mid-back and loin ranged from 0·74 to 0·90. The repeatability of average backfat thickness was 0·92.

Type
Research Article
Information
Animal Production , Volume 20 , Issue 3 , June 1975 , pp. 433 - 436
Copyright
Copyright © British Society of Animal Science 1975

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Becker, W. A. 1967. Manual of Procedures in Quantitative Genetics, 2nd ed. Wash. State Univ., Pullman, Washington.Google Scholar
East, E., Taylor, J., Miller, I. T. and Widdowson, R. W. 1959. Measurement of backfat thickness on live pigs by ultrasonics. Anim. Prod. 1: 129–134.Google Scholar
Harvey, W. R. 1964. Computing Procedures for a Generalised Least-squares Analysis Program. Analysis of Variance Workshop, Ft Collins, Colorado. (Mimeograph.)Google Scholar
Horst, P. 1964. [The development of a method for ultrasonic measurements on the live pig.] Z. Tierz. ZUcht. Biol. 80: 341–364.CrossRefGoogle Scholar
Rittler, A., Schoen, P., Schelper, E. and Fewson, D. 1964. [On the accuracy of ultrasonic measurements in live pigs at different weights.] Ziichtungskunde 36: 159–168.Google Scholar
Sundgren, P.-E. 1973. Studies on pig performance testing. Report No. 2, Department of Animal Breeding, Agricultural College, Sweden, S-750 07, Uppsala.Google Scholar