Laserfiche WebLink
<br />.10 <br />I ~; indicated that the procedures accurately measured the selenium concentrations in these samples. <br /> <br />r::'~ <br />(,.;. For neutron activation analysis of selenium in muscle plugs, the accuracy and precision <br />tJ1 <br />of the irradiation method was checked by MURR by irradiating 11 samples of National Institute <br /> <br />of Standards and Technology Bovine Liver SR.\11577a. Allll samples (mean = 1,14 pg/g Se) <br /> <br />were within the certified range (1.0-1.2 Ilg/g Se) and method precision for these II replicate <br /> <br />tissue analyses was 4.2% relative standard deviation. The limit of detection was 0.015 pg/g <br /> <br />selenium. <br /> <br />Statistical Analyses <br /> <br />Allstatistical analyses were performed using procedures in the Statistical Analysis <br /> <br />System (SAS Institute 1990) software package, Growth data for adult fish were analyzed using a <br /> <br />split plot in space and time analysis of variance (ANOV A), with treatment as the main plot, sex <br /> <br />as the subplot within treatment, and day of study as the time variable, along with all possible <br /> <br />interactions (Steel and Torrie 1980). Condition factor (K) was calculated by the formula of <br /> <br />Anderson and Gutreuter (1983) as follows: <br /> <br />K = weight (g) x 100,000 <br />total length (mmi <br /> <br />Reproduction data for the females and subsequent biological data for the resulting progeny were <br /> <br />analyzed as a 3 x 2 factorial ANOV A with 3 levels of diet treatment and 2 levels of water <br /> <br />treatment. Selenium residue data for adult muscle plugs were analyzed using a split plot in time <br /> <br />ANOV A, with treatment and sample day as the main effects. When significant F values were <br /> <br />obtained, differences between pairs of means were determined with Fisher's least significant <br /> <br />difference (LSD) test. <br /> <br />Pearson's correlation coefficients were calculated to explore. for possible relations among <br /> <br />23 ' <br />