<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The aim of this study was to evaluate the effects of carrot pomaces dried at two temperatures as a feed component on growth performance, environmental sustainability, and meat quality in common carp (<italic>Cyprinus carpio</italic>). Three diets were developed: a control without pomace (CON); CPL with 15.5% carrot pomace dried at 40°C and CPH with 23.6% carrot pomace dried at 120°C. A total of 240 two-year-old common carp (average body weight of individual: 1025 g) were randomly distributed into 12 tanks, four per treatment, including 20 fish per tank. The experiment was performed using an outdoor open flow aquaculture system. The growth trial lasted 60 days, after which fish samples were taken for analysis of meat quality parameters. There were no significant differences between groups in terms of the final body weight, protein efficiency ratio, or survival rate. However, in terms of weight gain, specific growth rate, and feed conversion ratio, fish fed the CPH diet exhibited significant worsening. Moreover, the fillets of fish from the CPH group exhibited a darker coloration compared to the CON diet. It is concluded that high temperature drying of carrot pomace added to carp diet negatively affected fish quality. It should be also emphasized that inclusion of the both carrot pomaces tested in this study significantly increased the usage of fish meal per kilogram of fish body weight gain. These results showed a reduced efficacy of using carrot pomace in practical and sustainable common carp nutrition.</p>
</abstract>

The aim of this study was to evaluate the effects of carrot pomaces dried at two temperatures as a feed component on growth performance, environmental sustainability, and meat quality in common carp (Cyprinus carpio). Three diets were developed: a control without pomace (CON); CPL with 15.5% carrot pomace dried at 40°C and CPH with 23.6% carrot pomace dried at 120°C. A total of 240 two-year-old common carp (average body weight of individual: 1025 g) were randomly distributed into 12 tanks, four per treatment, including 20 fish per tank. The experiment was performed using an outdoor open flow aquaculture system. The growth trial lasted 60 days, after which fish samples were taken for analysis of meat quality parameters. There were no significant differences between groups in terms of the final body weight, protein efficiency ratio, or survival rate. However, in terms of weight gain, specific growth rate, and feed conversion ratio, fish fed the CPH diet exhibited significant worsening. Moreover, the fillets of fish from the CPH group exhibited a darker coloration compared to the CON diet. It is concluded that high temperature drying of carrot pomace added to carp diet negatively affected fish quality. It should be also emphasized that inclusion of the both carrot pomaces tested in this study significantly increased the usage of fish meal per kilogram of fish body weight gain. These results showed a reduced efficacy of using carrot pomace in practical and sustainable common carp nutrition.

How potentially sustainable solutions may be unsustainable in practice: carrot pomaces in common carp nutrition

Faculty of Veterinary Medicine and Animal Science, Department of Zoology, Laboratory of Inland Fisheries and Aquaculture

Department of Small Mammals Breeding and Raw Materials of Animal Origin

Faculty of Food Science and Nutrition, Department of Food Quality Management

Faculty of Veterinary Medicine and Animal Science, Department of Animal Nutrition

Annals of Animal Science

This work is licensed under the Creative Commons Attribution 4.0 International License.

The aim of this study was to evaluate the effects of carrot pomaces dried at two temperatures as a feed component on growth performance, environmental...

How potentially sustainable solutions may be unsustainable in practice: carrot pomaces in common carp nutrition

Pubblicato online: 29 ott 2022

Pagine: 1333 - 1340

Ricevuto: 16 gen 2022

Accettato: 10 mag 2022

DOI: https://doi.org/10.2478/aoas-2022-0039

Parole chiave
common carp, carrot pomace, meat quality, sustainable aquaculture

© 2022 Joanna Kowalska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

How potentially sustainable solutions may be unsustainable in practice: carrot pomaces in common carp nutrition

Pubblicato online: 29 ott 2022

Pagine: 1333 - 1340

Ricevuto: 16 gen 2022

Accettato: 10 mag 2022

DOI: https://doi.org/10.2478/aoas-2022-0039

Parole chiavecommon carp, carrot pomace, meat quality, sustainable aquaculture

© 2022 Joanna Kowalska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Parole chiave
common carp, carrot pomace, meat quality, sustainable aquaculture