Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid
Guanidinoacetic acid (GAA) plays an important role in cellular energy use and protein synthesis. The objectives of this study were to determine the optimal level of dietary GAA regarding the growth performance and fillet characteristics of rainbow trout (<i>Oncorhynchus mykiss</i>). A to...
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2025-01-01
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| author | Pedro Henrique Sessegolo Ferzola Judith Ringel Elena Beneder Carsten Schulz Martin Gierus |
| author_facet | Pedro Henrique Sessegolo Ferzola Judith Ringel Elena Beneder Carsten Schulz Martin Gierus |
| author_sort | Pedro Henrique Sessegolo Ferzola |
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| description | Guanidinoacetic acid (GAA) plays an important role in cellular energy use and protein synthesis. The objectives of this study were to determine the optimal level of dietary GAA regarding the growth performance and fillet characteristics of rainbow trout (<i>Oncorhynchus mykiss</i>). A total of 300 trout (initial weight, 66.84 ± 7.82 g) were fed isonitrogenous (34%) and isocaloric (20.6 MJ kg<sup>−1</sup>) diets with increasing levels of GAA (0.00, 0.06, 0.12, 0.18%) for 90 days. The results showed that trout fed GAA (either 0.06, 0.12, or 0.18%) yielded better (<i>p</i> < 0.05) performance (BW, BWG, FCR, and SGR) than trout fed the control diet (0.00% GAA inclusion). No differences (<i>p</i> > 0.05) were observed for BW, BWG, nor FCR among trout fed GAA. Nonetheless, trout fed a diet with a 0.12% GAA inclusion had the highest (<i>p</i> < 0.01) SGR. Fillet quality was not affected by GAA supplementation (<i>p</i> > 0.05) for cook loss, shear force, nor colour. Trout fed 0.06% GAA inclusion tended (<i>p</i> = 0.08) to have a higher WHC. Moreover, trout fed 0.12 and 0.18% GAA had lower (<i>p</i> < 0.05) pH values than trout fed the control diet and 0.06% GAA. Our findings give insights for the growth promotion and fillet quality of trout fed diets supplemented with GAA, especially at the level of 0.12%. |
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| spelling | doaj-art-5e5d6172c0214a0a93a158b7829d44182025-01-24T13:18:21ZengMDPI AGAnimals2076-26152025-01-0115226710.3390/ani15020267Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic AcidPedro Henrique Sessegolo Ferzola0Judith Ringel1Elena Beneder2Carsten Schulz3Martin Gierus4Institute of Animal Nutrition, Livestock Products, and Nutrition Physiology, Department of Agrobiotechnology, BOKU University, 1190 Vienna, AustriaAlzChem Trostberg GmbH, 83308 Trostberg, GermanyBiotechnological Processes, University of Applied Sciences Wiener Neustadt, Biotech Campus Tulln, 3430 Tulln, AustriaInstitute of Animal Breeding and Husbandry, Department of Marine Aquaculture, Christian-Albrechts Universität zu Kiel, 24118 Kiel, GermanyInstitute of Animal Nutrition, Livestock Products, and Nutrition Physiology, Department of Agrobiotechnology, BOKU University, 1190 Vienna, AustriaGuanidinoacetic acid (GAA) plays an important role in cellular energy use and protein synthesis. The objectives of this study were to determine the optimal level of dietary GAA regarding the growth performance and fillet characteristics of rainbow trout (<i>Oncorhynchus mykiss</i>). A total of 300 trout (initial weight, 66.84 ± 7.82 g) were fed isonitrogenous (34%) and isocaloric (20.6 MJ kg<sup>−1</sup>) diets with increasing levels of GAA (0.00, 0.06, 0.12, 0.18%) for 90 days. The results showed that trout fed GAA (either 0.06, 0.12, or 0.18%) yielded better (<i>p</i> < 0.05) performance (BW, BWG, FCR, and SGR) than trout fed the control diet (0.00% GAA inclusion). No differences (<i>p</i> > 0.05) were observed for BW, BWG, nor FCR among trout fed GAA. Nonetheless, trout fed a diet with a 0.12% GAA inclusion had the highest (<i>p</i> < 0.01) SGR. Fillet quality was not affected by GAA supplementation (<i>p</i> > 0.05) for cook loss, shear force, nor colour. Trout fed 0.06% GAA inclusion tended (<i>p</i> = 0.08) to have a higher WHC. Moreover, trout fed 0.12 and 0.18% GAA had lower (<i>p</i> < 0.05) pH values than trout fed the control diet and 0.06% GAA. Our findings give insights for the growth promotion and fillet quality of trout fed diets supplemented with GAA, especially at the level of 0.12%.https://www.mdpi.com/2076-2615/15/2/267guanidinoacetic acidspecific growth ratefillet qualityrainbow trout |
| spellingShingle | Pedro Henrique Sessegolo Ferzola Judith Ringel Elena Beneder Carsten Schulz Martin Gierus Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid Animals guanidinoacetic acid specific growth rate fillet quality rainbow trout |
| title | Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid |
| title_full | Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid |
| title_fullStr | Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid |
| title_full_unstemmed | Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid |
| title_short | Performance Responses and Fillet Quality of Rainbow Trout (<i>Oncorhynchus mykiss</i>) to Increasing Addition Levels of Dietary Supplementation of Guanidinoacetic Acid |
| title_sort | performance responses and fillet quality of rainbow trout i oncorhynchus mykiss i to increasing addition levels of dietary supplementation of guanidinoacetic acid |
| topic | guanidinoacetic acid specific growth rate fillet quality rainbow trout |
| url | https://www.mdpi.com/2076-2615/15/2/267 |
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