Paula Maas,
Beata Grzegrzółka,
Philipp Georg Kreß,
Martin Oberle,
Prof. Dr. Prisca Kremer-Rücker
Berechtigungen: Peer Reviewed
In vivo – determination of the fat content in mirror carps (Cyprinus carpio) using ultrasound, microwave and linear measurements (2019) Aquaculture 512 .
DOI: 10.1016/j.aquaculture.2019.734359
Carps are the third largest species in aquaculture worldwide and belong to the fish family ‘cyprinids’, which make up the largest part of aquaculture production. The production of lean carp is one of the main goals in the carp farming business. Carps are usually traded alive; in order to ensure product quality and achieve a high consumer acceptance, it is important to estimate the fat content of the living fish. Therefore, during this study, a total of 250 living carps were examined using a mobile ultrasound device. Additionally, a microwave technology based Fish Fatmeter (Distell, Fauldhouse, Scotland, UK) was used to determine the fat content of the living fish. Further measurements included weight, lengths, height and circumferences. The ultrasound measurements were performed on non-sedated fish using narrow water-filled containers. Two sagittal images per fish were taken to measure the backfat thickness at defined locations. Subsequently, the fish were taken out of the water in order to determine the fat content using the Fish Fatmeter. Weight and linear measurements were taken. After the in vivo measurements, about 10 fish per pond, in total 51 fish, were slaughtered and the fillets were analysed chemically. Linear regression models were developed. The Fish Fatmeter turned out to be an accurate method to determine the fat content of the fillet in mirror carps (R2 = 0.95). Regarding the ultrasound measurement of the backfat thickness, moderate correlations between ultrasound and Fish Fatmeter were achieved (R2 = 0.33–0.45). Pearson's correlation for linear measurement and the Fish Fatmeter showed negative prediction. In order to evaluate the relative backfat thickness, the ultrasound measurement was divided by linear measurements. The best correlation was found using the ultrasound measurement point where the backfat thickness reached a constant thickness divided by the circumference around the thinnest part of the tail fin (R2 = 0.74). In the next step, the carps were divided into groups of ten fish per pond. The mean Fish Fatmeter measurement and ultrasound measurement divided by circumference was calculated and correlated achieving an R2 of 0.92. Based on these findings, it seems plausible to estimate the fat content using a small sample of ten fish with an ultrasound device and a measuring tape.
Beiträge in Monografien, Sammelwerken, Schriftenreihen
Paula Maas,
Beata Grzegrzółka,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
In vivo phenotyping of carcass traits in mirror carp (Cyprinus carpio) using ultrasound, microwave and linear measurements (2015) FAIM IV: Proceedings of the 4th Annual conference on carcass evaluation, meat quality, software and traceability, 22.-23. September 2015 in Edinburgh (Schottland) .
Beata Grzegrzółka,
Paula Maas,
Philipp Georg Kreß,
Michael Judas,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
Berechtigungen: Peer Reviewed
CT phenotyping of carcass traits in mirror carps (Cyprinus carpio). (2015) Grzegrzółka B., Maas P., Judas M., Kreß P., Oberle M., Gareis M., Kremer P.V. (2015):
CT phenotyping of carcass traits in mirror carps (Cyprinus carpio). In: FARM ANIMAL
IMAGING – Edinburgh 2015 (Eds.: Charlotte Maltin, Cameron Craigie and Lutz
Bünger) 2015 (4).
Beata Grzegrzółka,
Michael Judas,
Stijn Hellebuyck,
Paula Maas,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
Berechtigungen: Peer Reviewed
Image analysis of CT scans to predict fat content in mirror carps (Cyprinus carpio) (2015) FARM ANIMAL IMAGING – A summary report, Edinburgh 2015 2015 (4), S. 136.
DOI: 10.13140/RG.2.1.1549.5120
Beata Grzegrzółka,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker,
Paula Maas
Berechtigungen: Peer Reviewed
In vivo phenotyping of carcass traits in mirror carp (Cyprinus carpio) using ultrasound,
microwave and linear measurements. (2015) In vivo phenotyping of carcass traits in mirror carp (Cyprinus carpio) using ultrasound,
microwave and linear measurements. In: FARM ANIMAL IMAGING – Edinburgh
2015 (Eds: Charlotte Maltin, Cameron Craigie and Lutz Bünger), ISBN 978-0-
9931063-1-6 2015 (4), S. 36-39.
DOI: 10.13140/RG.2.1.1549.5120
Paula Maas,
Beata Grzegrzółka,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
In vivo phenotyping of carcass traits in mirror carp (Cyprinus carpio) using ultrasound, microwave and linear measurements (2015) Farm Animal Imaging - A summary report, Edinburgh 2015, Hrsg.: Charlotte Maltin, Cameron Craigie and Lutz Bünger , S. 36-39.
DOI: 10.13140/RG.2.1.1549.5120
Vorträge
Paula Maas,
Beata Grzegrzółka,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
In vivo phenotyping of carcass traits in mirror carp (Cyprinus carpio) using ultrasound,
microwave and linear measurements. (2015) Vortrag auf der Konferenz FARM ANIMAL IMAGING – Edinburgh
22.-23.09.2015 .
Wissenschaftliche Poster
Beata Grzegrzółka,
Michael Judas,
Stijn Hellebuyck,
Paula Maas,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
Image analysis of CT scans to predict fat content in mirror carps
(Cyprinus carpio) (2015) FAIM IV: Proceedings of the 4th Annual conference on carcass evaluation, meat quality, software and traceability, 22.-23. September 2015 in Edinburgh (Schottland) 2015 .
Beata Grzegrzółka,
Paula Maas,
Philipp Georg Kreß,
Michael Judas,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
CT phenotyping of carcass traits in mirror carps (Cyprinus carpio). (2015) Grzegrzółka B., Maas P., Judas M., Kreß P., Oberle M., Gareis M., Kremer P.V. (2015):
CT phenotyping of carcass traits in mirror carps (Cyprinus carpio).
FAIM IV: 4th Annual conference on carcass evaluation, meat quality, software and traceability, 22. .
Beata Grzegrzółka,
Paula Maas,
Michael Judas,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
CT phenotyping of carcass traits in mirror carps (Cyprinus carpio) (2015) Farm Animal Imaging - A summary report, Edinburgh 2015, Hrsg.: Charlotte Maltin, Cameron Craigie and Lutz Bünger , S. 135.
DOI: 10.13140/RG.2.1.1549.5120
Beata Grzegrzółka,
Michael Judas,
Stijn Hellebuyck,
Paula Maas,
Philipp Georg Kreß,
Martin Oberle,
Manfred Gareis,
Prof. Dr. Prisca Kremer-Rücker
Image analysis of CT scans to predict fat content in mirror carps (Cyprinus carpio) (2015) Farm Animal Imaging - A summary report, Edinburgh 2015, Hrsg.: Charlotte Maltin, Cameron Craigie and Lutz Bünger , S. 136.
DOI: 10.13140/RG.2.1.1549.5120
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