Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi)
The effect of dietary starch content, feeding level and their interaction on nutrient digestibility, bile acid balance, faecal waste production and characteristics were investigated in yellowtail kingfish (Seriola lalandi). The effect of starch inclusion level was tested in a dose-response trial, us...
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Elsevier
2025-04-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S235251342500050X |
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| author | Yaqing Zhang Roel M. Maas Peter Horstmann Zuther Jeroen Kals Satya Prakash Thomas W.O. Staessen Fotini Kokou Johan W. Schrama |
| author_facet | Yaqing Zhang Roel M. Maas Peter Horstmann Zuther Jeroen Kals Satya Prakash Thomas W.O. Staessen Fotini Kokou Johan W. Schrama |
| author_sort | Yaqing Zhang |
| collection | DOAJ |
| description | The effect of dietary starch content, feeding level and their interaction on nutrient digestibility, bile acid balance, faecal waste production and characteristics were investigated in yellowtail kingfish (Seriola lalandi). The effect of starch inclusion level was tested in a dose-response trial, using five diets differing in the inclusion level of gelatinized wheat flour (WF) (0, 4, 8, 12 and 16 %) and thus starch level. Each diet treatment was tested in triplicates. A restricted feeding period of 4-wk was followed by a 2-wk period of satiation feeding. Results showed that both starch inclusion level and feeding level (restricted vs. satiation) negatively affected macronutrient digestibility, with fat digestibility being most affected. The latter was associated with a potential depletion of the body bile acid pool as bile acid balances (bile acid intake – faecal bile acid loss) were consistently negative for all diets during both feeding periods. Faecal bile acid loss increased with both increasing feeding level and increasing dietary starch level, which was mainly caused by increased faecal waste production. Furthermore, starch had a negative impact on faecal characteristics. High dietary starch levels resulted in increased faecal waste production, and higher amounts of non-removed faeces by settling due to reduced faecal removal efficiency. The critical dietary starch content was estimated to be 6 %. Above a 6 % dietary starch content, fat digestibility and faecal removal efficiency decreased, while non-removed faeces increased with the dietary starch content. When culturing yellowtail kingfish in RAS, dietary starch levels should be below 6 % from a digestion as well as faecal management point of view. |
| format | Article |
| id | doaj-art-3965dbfec5284c4f9c877c4293cc5946 |
| institution | Kabale University |
| issn | 2352-5134 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj-art-3965dbfec5284c4f9c877c4293cc59462025-02-07T04:47:49ZengElsevierAquaculture Reports2352-51342025-04-0141102664Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi)Yaqing Zhang0Roel M. Maas1Peter Horstmann Zuther2Jeroen Kals3Satya Prakash4Thomas W.O. Staessen5Fotini Kokou6Johan W. Schrama7Aquaculture and Fisheries Group, Wageningen University and Research, Wageningen, the NetherlandsAquaculture and Fisheries Group, Wageningen University and Research, Wageningen, the Netherlands; Correspondence to: Aquaculture and Fisheries Group, Wageningen University and Research, P.O. Box 338, Wageningen 6700 AH, the Netherlands.Aquaculture and Fisheries Group, Wageningen University and Research, Wageningen, the Netherlands; Kingfish Zeeland, The Kingfish Company, Kats, the NetherlandsWageningen Livestock Research, Wageningen University and Research, Wageningen, the NetherlandsAquaculture and Fisheries Group, Wageningen University and Research, Wageningen, the Netherlands; Indian Council of Agricultural Research Central Institute of Fisheries Education, Rohtak Centre, Lahli, Haryana, IndiaKingfish Zeeland, The Kingfish Company, Kats, the NetherlandsAquaculture and Fisheries Group, Wageningen University and Research, Wageningen, the NetherlandsAquaculture and Fisheries Group, Wageningen University and Research, Wageningen, the NetherlandsThe effect of dietary starch content, feeding level and their interaction on nutrient digestibility, bile acid balance, faecal waste production and characteristics were investigated in yellowtail kingfish (Seriola lalandi). The effect of starch inclusion level was tested in a dose-response trial, using five diets differing in the inclusion level of gelatinized wheat flour (WF) (0, 4, 8, 12 and 16 %) and thus starch level. Each diet treatment was tested in triplicates. A restricted feeding period of 4-wk was followed by a 2-wk period of satiation feeding. Results showed that both starch inclusion level and feeding level (restricted vs. satiation) negatively affected macronutrient digestibility, with fat digestibility being most affected. The latter was associated with a potential depletion of the body bile acid pool as bile acid balances (bile acid intake – faecal bile acid loss) were consistently negative for all diets during both feeding periods. Faecal bile acid loss increased with both increasing feeding level and increasing dietary starch level, which was mainly caused by increased faecal waste production. Furthermore, starch had a negative impact on faecal characteristics. High dietary starch levels resulted in increased faecal waste production, and higher amounts of non-removed faeces by settling due to reduced faecal removal efficiency. The critical dietary starch content was estimated to be 6 %. Above a 6 % dietary starch content, fat digestibility and faecal removal efficiency decreased, while non-removed faeces increased with the dietary starch content. When culturing yellowtail kingfish in RAS, dietary starch levels should be below 6 % from a digestion as well as faecal management point of view.http://www.sciencedirect.com/science/article/pii/S235251342500050XFaecal waste managementRAS feedsFaeces removal efficiencyFaecal consistency |
| spellingShingle | Yaqing Zhang Roel M. Maas Peter Horstmann Zuther Jeroen Kals Satya Prakash Thomas W.O. Staessen Fotini Kokou Johan W. Schrama Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi) Aquaculture Reports Faecal waste management RAS feeds Faeces removal efficiency Faecal consistency |
| title | Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi) |
| title_full | Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi) |
| title_fullStr | Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi) |
| title_full_unstemmed | Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi) |
| title_short | Effect of dietary starch inclusion, feeding level and their combination on nutrient digestibility, bile acid balance, faecal waste production and characteristics of yellowtail kingfish (Seriola lalandi) |
| title_sort | effect of dietary starch inclusion feeding level and their combination on nutrient digestibility bile acid balance faecal waste production and characteristics of yellowtail kingfish seriola lalandi |
| topic | Faecal waste management RAS feeds Faeces removal efficiency Faecal consistency |
| url | http://www.sciencedirect.com/science/article/pii/S235251342500050X |
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