Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L.
Currently, microalgae are used in fish diets, but their long-term growth effect is unknown. In this experiment, juvenile seabream specimens were fed with microalgae-enriched diets for three months, and then transferred to a microalgae-free diet for 10 months to assess long-term effects up to commerc...
| Main Authors: | , , , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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MDPI
2023
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| Online Access: | http://hdl.handle.net/10835/14221 |
| _version_ | 1789406339456303104 |
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| author | Ayala, María Dolores Balsalobre, Noemí Chaves-Pozo, Elena Sáez Casado, María Isabel Galafat Díaz, Alba Alarcón López, Francisco Javier Martínez Moya, Tomás Francisco Arizcun, Marta |
| author_facet | Ayala, María Dolores Balsalobre, Noemí Chaves-Pozo, Elena Sáez Casado, María Isabel Galafat Díaz, Alba Alarcón López, Francisco Javier Martínez Moya, Tomás Francisco Arizcun, Marta |
| author_sort | Ayala, María Dolores |
| collection | DSpace |
| description | Currently, microalgae are used in fish diets, but their long-term growth effect is unknown. In this experiment, juvenile seabream specimens were fed with microalgae-enriched diets for three months, and then transferred to a microalgae-free diet for 10 months to assess long-term effects up to commercial size (≈27 cm and ≈300 g). The juvenile diets contained Nannochloropsis gaditana at 2.5 or 5% inclusion levels, either raw (R2.5 and R5 groups) or cellulose-hydrolyzed (H2.5 and H5 groups). The body length and weight were measured in 75 fish group−1 at commercial stage. The size, number, and fibrillar density of white muscle fibers and the white muscle transverse area were measured in nine fish group−1 at commercial stage. The results showed the highest body weight in H5 at commercial stage. The white muscle transverse area and the white fibres hyperplasia and density also showed the highest values in H5, followed by H2.5. In contrast, the highest hypertrophy was observed in C and R2.5, being associated with the lowest muscle growth in both groups. These results showed a microalgae concentration-dependent effect in hydrolyzed diets as well as an advantageous effect of the hydrolyzed versus raw diets on the long-term growth of Sparus aurata. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-14221 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2023 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-142212023-04-12T18:57:28Z Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. Ayala, María Dolores Balsalobre, Noemí Chaves-Pozo, Elena Sáez Casado, María Isabel Galafat Díaz, Alba Alarcón López, Francisco Javier Martínez Moya, Tomás Francisco Arizcun, Marta long term growth microalgae diets muscle cellularity Sparus aurata Currently, microalgae are used in fish diets, but their long-term growth effect is unknown. In this experiment, juvenile seabream specimens were fed with microalgae-enriched diets for three months, and then transferred to a microalgae-free diet for 10 months to assess long-term effects up to commercial size (≈27 cm and ≈300 g). The juvenile diets contained Nannochloropsis gaditana at 2.5 or 5% inclusion levels, either raw (R2.5 and R5 groups) or cellulose-hydrolyzed (H2.5 and H5 groups). The body length and weight were measured in 75 fish group−1 at commercial stage. The size, number, and fibrillar density of white muscle fibers and the white muscle transverse area were measured in nine fish group−1 at commercial stage. The results showed the highest body weight in H5 at commercial stage. The white muscle transverse area and the white fibres hyperplasia and density also showed the highest values in H5, followed by H2.5. In contrast, the highest hypertrophy was observed in C and R2.5, being associated with the lowest muscle growth in both groups. These results showed a microalgae concentration-dependent effect in hydrolyzed diets as well as an advantageous effect of the hydrolyzed versus raw diets on the long-term growth of Sparus aurata. 2023-02-09T14:55:23Z 2023-02-09T14:55:23Z 2023-01-30 info:eu-repo/semantics/article 2076-2615 http://hdl.handle.net/10835/14221 10.3390/ani13030482 en https://www.mdpi.com/2076-2615/13/3/482 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | long term growth microalgae diets muscle cellularity Sparus aurata Ayala, María Dolores Balsalobre, Noemí Chaves-Pozo, Elena Sáez Casado, María Isabel Galafat Díaz, Alba Alarcón López, Francisco Javier Martínez Moya, Tomás Francisco Arizcun, Marta Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. |
| title | Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. |
| title_full | Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. |
| title_fullStr | Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. |
| title_full_unstemmed | Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. |
| title_short | Long-Term Effects of a Short Juvenile Feeding Period with Diets Enriched with the Microalgae Nannochloropsis gaditana on the Subsequent Body and Muscle Growth of Gilthead Seabream, Sparus aurata L. |
| title_sort | long-term effects of a short juvenile feeding period with diets enriched with the microalgae nannochloropsis gaditana on the subsequent body and muscle growth of gilthead seabream, sparus aurata l. |
| topic | long term growth microalgae diets muscle cellularity Sparus aurata |
| url | http://hdl.handle.net/10835/14221 |
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