Implications of medullation and fibre diameter distribution on wool diameter measured by Airflow

Authors

  • Nelson Roberto Manzoni de Oliveira "Empresa Brasileira de Pesquisa Agropecuária, Centro de Pesquisa de Pecuária dos Campos Sul-Brasileiros, Cppsul.
  • John P. Kennedy

DOI:

https://doi.org/10.1590/S1678-3921.pab1992.v27.3814

Keywords:

sheep, specific gravity coefficient of variation

Abstract

The specific gravity (related to medullation as assessed by three techniques) and fibre diameter variability of 242 wool samples (encompassing the range of diameters between 22.0 and 38.0 m.m) were considered to evaluate the accuracy of diameter estimates as obtained from the Airflow apparatus. Data are presented showing the improvement obtained on diameter estimates of highly medullated wools, within a precision comparable to others reported for non-medullated fibres. Results on the techniques employed lo assess medullation (Projection Microscope, Medullameter and InfraAlyser) have also been discussed.

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Published

1992-12-01

How to Cite

de Oliveira, N. R. M., & Kennedy, J. P. (1992). Implications of medullation and fibre diameter distribution on wool diameter measured by Airflow. Pesquisa Agropecuaria Brasileira, 27(12), 1643–1657. https://doi.org/10.1590/S1678-3921.pab1992.v27.3814

Issue

v.27, n.12, dez. 1992

Section

ANIMAL SCIENCE