Biology Reference
In-Depth Information
Chapter 28
Ultrasonographic Assessment of Thawing
in Sea Breams ( Sparus aurata )
L. Meomartino, C. Chirollo, R. Mercogliano, E. Nicolai, R. Marrone,
A. De Felice, A. Brunetti, A. Anastasio, and M.L. Cortesi
Abstract To assess sea bream ( Sparus aurata ) thawing, two ultrasonographic (US)
protocols were used. The first protocol was used on 15 subjects at three different
times (1) immediately after capture, (2) after the first thaw, and (3) after the second
thaw. A general-purpose device equipped with a linear high-frequency probe was
used. On the B-mode-Real Time images, quantitative analysis of the epiaxial
muscle gray levels was made. For the second protocol, a quantitative US (QUS)
device was used on three groups of fish samples (fresh, thawed once, and thawed
twice), each composed of five subjects. Speed of sound, bone ultrasound attenua-
tion, bone mineral density, and quantitative ultrasound index were measured. Data
were statistically compared using ANOVA ( P
0.05). Gray levels differed signif-
icantly among the three control times. QUS data differed significantly between the
fresh and thawed groups. US and QUS appear to be promising techniques for
assessing fish thawing.
<
Keywords Ultrasonography • Sea bream • Thawing
L. Meomartino ( * )
Interdepartmental Centre of Veterinary Radiology, University “Federico II”, Naples, Italy
e-mail: meomarti@unina.it
C. Chirollo • R. Mercogliano • R. Marrone • A. De Felice • A. Anastasio • M.L. Cortesi
Department of Zootechnical Science and Food Inspection, University “Federico II”, Naples, Italy
E. Nicolai
Scientific Foundation SDN, University “Federico II”, Naples, Italy
A. Brunetti
Department of Biomorphological and Functional Sciences, University “Federico II”, Naples, Italy
Search WWH ::




Custom Search