Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets
This study evaluates the nutritional value of spray-dried <i>Nannochloropsis oceanica</i> biomass to infer its applicability for weaner piglet feeding. Twenty-four piglets were randomly allocated to four dietary treatments (<i>n</i> = 6) with increasing <i>N. oceanica&l...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/2076-2615/14/24/3575 |
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| author | Andreia A. M. Chaves David M. Ribeiro Cátia F. Martins Tatiane Fernandes Margarida R. G. Maia António J. M. Fonseca Ana R. J. Cabrita Susana P. Alves Mário Pinho Rui J. B. Bessa André M. de Almeida João P. B. Freire |
| author_facet | Andreia A. M. Chaves David M. Ribeiro Cátia F. Martins Tatiane Fernandes Margarida R. G. Maia António J. M. Fonseca Ana R. J. Cabrita Susana P. Alves Mário Pinho Rui J. B. Bessa André M. de Almeida João P. B. Freire |
| author_sort | Andreia A. M. Chaves |
| collection | DOAJ |
| description | This study evaluates the nutritional value of spray-dried <i>Nannochloropsis oceanica</i> biomass to infer its applicability for weaner piglet feeding. Twenty-four piglets were randomly allocated to four dietary treatments (<i>n</i> = 6) with increasing <i>N. oceanica</i> inclusion (0, 5, 10, and 15%) levels. After a 4-day adaptation period, the digestibility experiment lasted two weeks, with daily excreta collection. Total tract apparent digestibility (TTAD), N balance, intestinal pH, histomorphology, and volatile fatty acid (VFA) concentrations were measured. No significant differences were observed in feed intake, growth, or intestinal morphology (<i>p</i> > 0.05). N intake increased linearly (<i>p</i> = 0.005) with <i>N. oceanica</i> inclusion, while N retention efficiency remained unchanged (<i>p</i> = 0.058). VFA concentrations decreased linearly (<i>p</i> < 0.001). The TTAD of dry matter (DM), organic matter, ether extract, and gross energy decreased (<i>p</i> < 0.05) with higher <i>N. oceanica</i> levels, while the ash TTAD increased (<i>p</i> < 0.001). The estimated TTAD values for <i>N. oceanica</i> biomass were 72.5% for DM, 82.9% for N, and 64.4% for gross energy. The digestible energy, metabolisable energy, and digestible crude protein values estimated for <i>N. oceanica</i> were 12.74 MJ/kg DM, 12.40 MJ/kg DM, and 20.4% DM, respectively. This information enabled the first nutritional characterisation of <i>N. oceanica</i> for weaner piglets, ultimately leveraging its use in piglet diet formulation. |
| format | Article |
| id | doaj-art-9d3f3667ee934a73a1d52b0b22800d22 |
| institution | OA Journals |
| issn | 2076-2615 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Animals |
| spelling | doaj-art-9d3f3667ee934a73a1d52b0b22800d222025-08-20T02:00:55ZengMDPI AGAnimals2076-26152024-12-011424357510.3390/ani14243575Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner PigletsAndreia A. M. Chaves0David M. Ribeiro1Cátia F. Martins2Tatiane Fernandes3Margarida R. G. Maia4António J. M. Fonseca5Ana R. J. Cabrita6Susana P. Alves7Mário Pinho8Rui J. B. Bessa9André M. de Almeida10João P. B. Freire11LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalREQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, PortugalREQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, PortugalREQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, PortugalCIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalThis study evaluates the nutritional value of spray-dried <i>Nannochloropsis oceanica</i> biomass to infer its applicability for weaner piglet feeding. Twenty-four piglets were randomly allocated to four dietary treatments (<i>n</i> = 6) with increasing <i>N. oceanica</i> inclusion (0, 5, 10, and 15%) levels. After a 4-day adaptation period, the digestibility experiment lasted two weeks, with daily excreta collection. Total tract apparent digestibility (TTAD), N balance, intestinal pH, histomorphology, and volatile fatty acid (VFA) concentrations were measured. No significant differences were observed in feed intake, growth, or intestinal morphology (<i>p</i> > 0.05). N intake increased linearly (<i>p</i> = 0.005) with <i>N. oceanica</i> inclusion, while N retention efficiency remained unchanged (<i>p</i> = 0.058). VFA concentrations decreased linearly (<i>p</i> < 0.001). The TTAD of dry matter (DM), organic matter, ether extract, and gross energy decreased (<i>p</i> < 0.05) with higher <i>N. oceanica</i> levels, while the ash TTAD increased (<i>p</i> < 0.001). The estimated TTAD values for <i>N. oceanica</i> biomass were 72.5% for DM, 82.9% for N, and 64.4% for gross energy. The digestible energy, metabolisable energy, and digestible crude protein values estimated for <i>N. oceanica</i> were 12.74 MJ/kg DM, 12.40 MJ/kg DM, and 20.4% DM, respectively. This information enabled the first nutritional characterisation of <i>N. oceanica</i> for weaner piglets, ultimately leveraging its use in piglet diet formulation.https://www.mdpi.com/2076-2615/14/24/3575apparent total tract digestibilitydigestible energyfeed evaluationmicroalgaepost-weaning piglets |
| spellingShingle | Andreia A. M. Chaves David M. Ribeiro Cátia F. Martins Tatiane Fernandes Margarida R. G. Maia António J. M. Fonseca Ana R. J. Cabrita Susana P. Alves Mário Pinho Rui J. B. Bessa André M. de Almeida João P. B. Freire Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets Animals apparent total tract digestibility digestible energy feed evaluation microalgae post-weaning piglets |
| title | Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets |
| title_full | Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets |
| title_fullStr | Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets |
| title_full_unstemmed | Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets |
| title_short | Nutritional Value of <i>Nannochloropsis oceanica</i> for Weaner Piglets |
| title_sort | nutritional value of i nannochloropsis oceanica i for weaner piglets |
| topic | apparent total tract digestibility digestible energy feed evaluation microalgae post-weaning piglets |
| url | https://www.mdpi.com/2076-2615/14/24/3575 |
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