CVFD

(redirected from Coefficient of Variation of Fibre Diameter)
AcronymDefinition
CVFDCoefficient of Variation of Fibre Diameter (wool production measurement)
CVFDCentreville Volunteer Fire Department (Centreville, VA)
CVFDCherrydale Volunteer Fire Department (est. 1898; Arlington, VA)
CVFDChula Vista Fire Department (California, UA)
CVFDConway Village Fire District (Conway, NH)
References in periodicals archive ?
There was no significant effect of coefficient of variation of fibre diameter on propensity to follicle shutdown induced by exogenous cortisol.
To test the hypothesis that sheep follicle types differ in susceptibility to cortisol-induced shutdown, 2 groups of Finewool (LL = Low fibre diameter, low coefficient of variation of fibre diameter and LH = Low fibre diameter, high coefficient of variation of fibre diameter) and 2 groups of Strongwool (HL = High fibre diameter, low coefficient of variation of fibre diameter and HH = High fibre diameter, high coefficient of variation of fibre diameter) Merino sheep were selected.
The objective was to select 2 groups of sheep from each of a Finewool Merino flock (n = 150) and a Strongwool Merino flock (n = 150) such that 2 groups within each genotype differed phenotypically in coefficient of variation of fibre diameter. The sheep, 9 months of age at the time of selection, grazed at Turretfield Research Centre in South Australia.
Follicle shutdown was significantly (p = 0.0012) dependent on fibre diameter while coefficient of variation of fibre diameter had no significant effect (p = 0.17) on follicle shutdown.
Plasma cortisol concentration was however significantly (p<0.05) higher in the low coefficient of variation of fibre diameter groups (LL+HL) than high coefficient of variation of fibre diameter groups (LH+HH) two weeks after commencement of cortisol injection.
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