Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits
A total of 576 rabbits were housed in 18 open-top elevated pens (32 rabbits per pen) during the fattening period (54–71 d of age) and fed a standard diet or a diet enriched in purified wood lignocellulose and fat formulated to guarantee rabbit optimal digestive health and convenient feed conversion...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-12-01
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| Series: | Italian Journal of Animal Science |
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| Online Access: | http://dx.doi.org/10.1080/1828051X.2024.2359589 |
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| author | Giulia Zardinoni Angela Trocino Marco Birolo Francesco Bordignon Piergiorgio Stevanato Fabrizio Pirrone Andrea Zuffellato Gerolamo Xiccato |
| author_facet | Giulia Zardinoni Angela Trocino Marco Birolo Francesco Bordignon Piergiorgio Stevanato Fabrizio Pirrone Andrea Zuffellato Gerolamo Xiccato |
| author_sort | Giulia Zardinoni |
| collection | DOAJ |
| description | A total of 576 rabbits were housed in 18 open-top elevated pens (32 rabbits per pen) during the fattening period (54–71 d of age) and fed a standard diet or a diet enriched in purified wood lignocellulose and fat formulated to guarantee rabbit optimal digestive health and convenient feed conversion ratio. The impacts on gut microbiota (both hard faeces and caecal content) and caecal fermentation, diet digestibility and rabbit performance were examined. The microbial diversity and the bacterial community structure of hard faeces barely differed from that of caecal content (p > .05). No differences in alpha and beta diversity of microbiota were detected between rabbits fed the different diets. Twelve genera, mostly belonging to the family of Lachnospiraceae, increased (p < .05) in rabbits fed the diet added with the purified lignocellulose and fat. The increase of insoluble fibre by purified wood lignocellulose reduced the digestibility of fibre fractions (NDF digestibility 19.2% vs. 26.8%; p < .001) while increasing protein (73.5% vs. 71.6%; p < .01) and ether extract digestibility. Growth performance was not affected by the dietary treatment (average daily weight gain: 40.9 g/d; feed conversion ratio: 4.04). Total losses (dead + underweight animals) averaged at 4.17% without significant differences between the dietary treatments. In conclusion, the addition of purified wood lignocellulose in fat-added diets did not affect rabbit performance and overall farm efficiency was maintained. Some changes in the caecal fermentation profile may indicate a change in microbial pathways rather than composition, where no significant effects on the gut microbiota were observed. |
| format | Article |
| id | doaj-art-2876e6abfdb841c0b3b2bc02b7effd27 |
| institution | DOAJ |
| issn | 1594-4077 1828-051X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj-art-2876e6abfdb841c0b3b2bc02b7effd272025-08-20T02:42:53ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2024-12-012311018103010.1080/1828051X.2024.23595892359589Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbitsGiulia Zardinoni0Angela Trocino1Marco Birolo2Francesco Bordignon3Piergiorgio Stevanato4Fabrizio Pirrone5Andrea Zuffellato6Gerolamo Xiccato7Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaDepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaA.I.A. Agricola Italiana Alimentare S.p.ADepartment of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of PadovaA total of 576 rabbits were housed in 18 open-top elevated pens (32 rabbits per pen) during the fattening period (54–71 d of age) and fed a standard diet or a diet enriched in purified wood lignocellulose and fat formulated to guarantee rabbit optimal digestive health and convenient feed conversion ratio. The impacts on gut microbiota (both hard faeces and caecal content) and caecal fermentation, diet digestibility and rabbit performance were examined. The microbial diversity and the bacterial community structure of hard faeces barely differed from that of caecal content (p > .05). No differences in alpha and beta diversity of microbiota were detected between rabbits fed the different diets. Twelve genera, mostly belonging to the family of Lachnospiraceae, increased (p < .05) in rabbits fed the diet added with the purified lignocellulose and fat. The increase of insoluble fibre by purified wood lignocellulose reduced the digestibility of fibre fractions (NDF digestibility 19.2% vs. 26.8%; p < .001) while increasing protein (73.5% vs. 71.6%; p < .01) and ether extract digestibility. Growth performance was not affected by the dietary treatment (average daily weight gain: 40.9 g/d; feed conversion ratio: 4.04). Total losses (dead + underweight animals) averaged at 4.17% without significant differences between the dietary treatments. In conclusion, the addition of purified wood lignocellulose in fat-added diets did not affect rabbit performance and overall farm efficiency was maintained. Some changes in the caecal fermentation profile may indicate a change in microbial pathways rather than composition, where no significant effects on the gut microbiota were observed.http://dx.doi.org/10.1080/1828051X.2024.2359589feed efficiencydietary fibrefatcaecal fermentationmicrobiota |
| spellingShingle | Giulia Zardinoni Angela Trocino Marco Birolo Francesco Bordignon Piergiorgio Stevanato Fabrizio Pirrone Andrea Zuffellato Gerolamo Xiccato Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits Italian Journal of Animal Science feed efficiency dietary fibre fat caecal fermentation microbiota |
| title | Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits |
| title_full | Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits |
| title_fullStr | Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits |
| title_full_unstemmed | Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits |
| title_short | Effect of dietary supplementation with purified wood lignocellulose on performances, caecal fermentation and gut microbiota of growing rabbits |
| title_sort | effect of dietary supplementation with purified wood lignocellulose on performances caecal fermentation and gut microbiota of growing rabbits |
| topic | feed efficiency dietary fibre fat caecal fermentation microbiota |
| url | http://dx.doi.org/10.1080/1828051X.2024.2359589 |
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