Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>)
A 90-d feeding trial was conducted in which five groups of gilthead seabream (11.96 g initial body weight) were fed with a microalgae-free diet (control group, C) or four diets containing the microalgae <i>Nannochloropsis gaditana</i> at two inclusion levels (2.5% or 5%), either raw (R2....
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MDPI AG
2020-12-01
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| Online Access: | https://www.mdpi.com/2076-2615/10/12/2270 |
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| author | María Dolores Ayala Carolina Galián Victoria Fernández Elena Chaves-Pozo Daniel García de la Serrana María Isabel Sáez Alba Galafaz Díaz Francisco Javier Alarcón Tomás Francisco Martínez Marta Arizcun |
| author_facet | María Dolores Ayala Carolina Galián Victoria Fernández Elena Chaves-Pozo Daniel García de la Serrana María Isabel Sáez Alba Galafaz Díaz Francisco Javier Alarcón Tomás Francisco Martínez Marta Arizcun |
| author_sort | María Dolores Ayala |
| collection | DOAJ |
| description | A 90-d feeding trial was conducted in which five groups of gilthead seabream (11.96 g initial body weight) were fed with a microalgae-free diet (control group, C) or four diets containing the microalgae <i>Nannochloropsis gaditana</i> at two inclusion levels (2.5% or 5%), either raw (R2.5 and R5 batches) or cellulose-hydrolyzed (H2.5 and H5 batches), to study their effect on the body and muscle growth. At 40 days, the highest values of body length and weight were reached in R5 group, but at 64 and 90 days, these were reached in R2.5. However, feed conversion rate, specific growth, daily intake, and survival (100%) were similar in all the groups. The acquisition of a discoid body shape was accelerated depending on the inclusion level of <i>N. gaditana</i> in the diets. Moreover, H5 diet affected the fish geometric morphology compared to R5 diet. The white muscle transverse area was similar in all groups at 40 days, with the exception of H2.5 group, which showed the lowest area. At day 90, C and R2.5 displayed the highest muscle growth, attributable to increased hyperplasia in C, and higher hypertrophy in R2.5. However, the highest proportion of small and medium fibers was observed in R5 and H5. |
| first_indexed | 2024-03-10T14:24:05Z |
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| id | doaj.art-3f115c6f60444fa0a7222e64168f6bb7 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T14:24:05Z |
| publishDate | 2020-12-01 |
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| record_format | Article |
| series | Animals |
| spelling | doaj.art-3f115c6f60444fa0a7222e64168f6bb72023-11-20T23:09:42ZengMDPI AGAnimals2076-26152020-12-011012227010.3390/ani10122270Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>)María Dolores Ayala0Carolina Galián1Victoria Fernández2Elena Chaves-Pozo3Daniel García de la Serrana4María Isabel Sáez5Alba Galafaz Díaz6Francisco Javier Alarcón7Tomás Francisco Martínez8Marta Arizcun9Department of Anatomy and Comparative Pathological Anatomy, Faculty of Veterinary, Campus of Espinardo, University of Murcia, 30100 Murcia, SpainDepartment of Anatomy and Comparative Pathological Anatomy, Faculty of Veterinary, Campus of Espinardo, University of Murcia, 30100 Murcia, SpainDepartment of Anatomy and Comparative Pathological Anatomy, Faculty of Veterinary, Campus of Espinardo, University of Murcia, 30100 Murcia, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Murcia, Puerto de Mazarrón, 30860 Murcia, SpainDepartment of Cell Biology, Physiology and Immunology, Faculty of Biology, University of Barcelona, 08028 Barcelona, SpainDepartamento de Biología y Geología, Universidad de Almería, CEIMAR, 04120 Almería, SpainDepartamento de Biología y Geología, Universidad de Almería, CEIMAR, 04120 Almería, SpainDepartamento de Biología y Geología, Universidad de Almería, CEIMAR, 04120 Almería, SpainDepartamento de Biología y Geología, Universidad de Almería, CEIMAR, 04120 Almería, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Murcia, Puerto de Mazarrón, 30860 Murcia, SpainA 90-d feeding trial was conducted in which five groups of gilthead seabream (11.96 g initial body weight) were fed with a microalgae-free diet (control group, C) or four diets containing the microalgae <i>Nannochloropsis gaditana</i> at two inclusion levels (2.5% or 5%), either raw (R2.5 and R5 batches) or cellulose-hydrolyzed (H2.5 and H5 batches), to study their effect on the body and muscle growth. At 40 days, the highest values of body length and weight were reached in R5 group, but at 64 and 90 days, these were reached in R2.5. However, feed conversion rate, specific growth, daily intake, and survival (100%) were similar in all the groups. The acquisition of a discoid body shape was accelerated depending on the inclusion level of <i>N. gaditana</i> in the diets. Moreover, H5 diet affected the fish geometric morphology compared to R5 diet. The white muscle transverse area was similar in all groups at 40 days, with the exception of H2.5 group, which showed the lowest area. At day 90, C and R2.5 displayed the highest muscle growth, attributable to increased hyperplasia in C, and higher hypertrophy in R2.5. However, the highest proportion of small and medium fibers was observed in R5 and H5.https://www.mdpi.com/2076-2615/10/12/2270growthmicroalgae fed groupsmuscle cellularity<i>Sparus aurata</i> |
| spellingShingle | María Dolores Ayala Carolina Galián Victoria Fernández Elena Chaves-Pozo Daniel García de la Serrana María Isabel Sáez Alba Galafaz Díaz Francisco Javier Alarcón Tomás Francisco Martínez Marta Arizcun Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>) Animals growth microalgae fed groups muscle cellularity <i>Sparus aurata</i> |
| title | Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>) |
| title_full | Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>) |
| title_fullStr | Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>) |
| title_full_unstemmed | Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>) |
| title_short | Influence of Low Dietary Inclusion of the Microalga <i>Nannochloropsis gaditana</i> (Lubián 1982) on Performance, Fish Morphology, and Muscle Growth in Juvenile Gilthead Seabream (<i>Sparus aurata</i>) |
| title_sort | influence of low dietary inclusion of the microalga i nannochloropsis gaditana i lubian 1982 on performance fish morphology and muscle growth in juvenile gilthead seabream i sparus aurata i |
| topic | growth microalgae fed groups muscle cellularity <i>Sparus aurata</i> |
| url | https://www.mdpi.com/2076-2615/10/12/2270 |
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