Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology
The aim of the present study was to compare the effects of two different nitrogen-rich ingredients such as hydrolysed fish protein and autolysed yeast, on gilthead sea bream (Sparus aurata) growth performances and histological gut morphology. Animals were allocated to three experimental groups: the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2019-01-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/1828051X.2019.1581584 |
| _version_ | 1818298234746961920 |
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| author | Baldassare Fronte Francesca Abramo Fabio Brambilla Mahanama De Zoysa Vincenzo Miragliotta |
| author_facet | Baldassare Fronte Francesca Abramo Fabio Brambilla Mahanama De Zoysa Vincenzo Miragliotta |
| author_sort | Baldassare Fronte |
| collection | DOAJ |
| description | The aim of the present study was to compare the effects of two different nitrogen-rich ingredients such as hydrolysed fish protein and autolysed yeast, on gilthead sea bream (Sparus aurata) growth performances and histological gut morphology. Animals were allocated to three experimental groups: the first received a fishmeal-based diet (FM), the second and the third received hydrolysed fish protein (HFP) and autolysed yeast (AY), respectively, to replace an equal amount of fishmeal. The experiment lasted 92 days. No significant differences in body weight and mortality were observed among the different groups. Villus branching, intraepithelial lymphocytes and inflammatory infiltrate of the submucosa were more prominent in AY than HFP and FM. The gut absorbent surface ratio was 5.94, 6.44 and 7.28 for group FM, HFP and AY, respectively, with statistical significant difference between FM and AY and between HFP and AY. A significant increment in the goblet cell density was observed for HFP and AY in comparison to FM. A statistically significant increase in small-sized goblet cells was observed in AY compared to FM. All our findings suggest that it is possible to use either HFP or AY, as partial replacer of FM in the S. aurata diet.Highlights Yeast-derived products as a suitable alternative nitrogen source. Autolyzed yeast as a novel approach in the use of yeast products. Use of autolysed yeast for replacing fishmeal in aqua feed. Use of hydrolysed fish protein for replacing fishmeal in aqua feed. |
| first_indexed | 2024-12-13T04:32:06Z |
| format | Article |
| id | doaj.art-d58469d54d2c43f589a58e911a0b517e |
| institution | Directory Open Access Journal |
| issn | 1828-051X |
| language | English |
| last_indexed | 2024-12-13T04:32:06Z |
| publishDate | 2019-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-d58469d54d2c43f589a58e911a0b517e2022-12-21T23:59:31ZengTaylor & Francis GroupItalian Journal of Animal Science1828-051X2019-01-0118179980810.1080/1828051X.2019.15815841581584Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphologyBaldassare Fronte0Francesca Abramo1Fabio Brambilla2Mahanama De Zoysa3Vincenzo Miragliotta4University of PisaUniversity of PisaVRM srl NaturallevaChungnam National UniversityUniversity of PisaThe aim of the present study was to compare the effects of two different nitrogen-rich ingredients such as hydrolysed fish protein and autolysed yeast, on gilthead sea bream (Sparus aurata) growth performances and histological gut morphology. Animals were allocated to three experimental groups: the first received a fishmeal-based diet (FM), the second and the third received hydrolysed fish protein (HFP) and autolysed yeast (AY), respectively, to replace an equal amount of fishmeal. The experiment lasted 92 days. No significant differences in body weight and mortality were observed among the different groups. Villus branching, intraepithelial lymphocytes and inflammatory infiltrate of the submucosa were more prominent in AY than HFP and FM. The gut absorbent surface ratio was 5.94, 6.44 and 7.28 for group FM, HFP and AY, respectively, with statistical significant difference between FM and AY and between HFP and AY. A significant increment in the goblet cell density was observed for HFP and AY in comparison to FM. A statistically significant increase in small-sized goblet cells was observed in AY compared to FM. All our findings suggest that it is possible to use either HFP or AY, as partial replacer of FM in the S. aurata diet.Highlights Yeast-derived products as a suitable alternative nitrogen source. Autolyzed yeast as a novel approach in the use of yeast products. Use of autolysed yeast for replacing fishmeal in aqua feed. Use of hydrolysed fish protein for replacing fishmeal in aqua feed.http://dx.doi.org/10.1080/1828051X.2019.1581584sparus auratafish nutritionfish proteinautolysed yeast |
| spellingShingle | Baldassare Fronte Francesca Abramo Fabio Brambilla Mahanama De Zoysa Vincenzo Miragliotta Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology Italian Journal of Animal Science sparus aurata fish nutrition fish protein autolysed yeast |
| title | Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology |
| title_full | Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology |
| title_fullStr | Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology |
| title_full_unstemmed | Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology |
| title_short | Effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream (Sparus aurata) growth performances and gut morphology |
| title_sort | effect of hydrolysed fish protein and autolysed yeast as alternative nitrogen sources on gilthead sea bream sparus aurata growth performances and gut morphology |
| topic | sparus aurata fish nutrition fish protein autolysed yeast |
| url | http://dx.doi.org/10.1080/1828051X.2019.1581584 |
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