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In order to reduce the antimicrobials used in livestock, it's important to find natural and sustainable molecules that boost animal performance and health. Brown seaweeds seem to be a promising dietary intervention in pigs in order to boost the immune system, antioxidant status and gut health.
Algae Supplement | Dose g/kg | Animal | Effects on Digestibility | Treatment vs. Control, % | Ref. |
---|---|---|---|---|---|
A. nodosum | Dried intact (2.5 g/kg) |
Male Pigs, 45 kg LW |
NS | – | [37] |
A. nodosum | Dried intact (10–20 g/kg) | Weaned piglets (35 d age) | NS | – | [21] |
Brown seaweed | Alginates olisaccharides (100 mg/kg) |
Weaned piglets, 6.2 kg LW | Improved digestibility of | [23] | |
N, fat, ash GE |
+6.7% +10.8% +25.9% +4.0% |
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Ecklonia cava | Seaweed (0.5–1—1.5 g/kg) s |
Weaned piglets 7.8 kg LW | Improved digestibility of GE | +3.3% (1g/kg) | [24] |
Laminaria digitata | LAM + FUC (0.314–0.250 g/kg) |
Weaned piglets, 7.2 kg LW |
Improved digestibility of | [25] | |
OM, N, NDF, GE |
+4.5% +7.3% +73.3% +5.9% |
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Laminaria spp. | Extract (1–2–4 g/kg) x | Weaned piglets (24 d age) | NS | [30] | |
Laminaria spp. | Seaweed extract LAM (0.112 g/kg) y FUC (0.089 g/kg) z |
Weaned piglets, (24 d age) | Improved digestibility of | [28] | |
N, GE |
+6.7% +5.2% |
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Laminaria spp. | LAM + FUC (0.30 + 0.24 g/kg) | Weaned piglets (22 d age) | Improved digestibility of | [32] | |
DM, N, NDF |
+8.8% +8.9% +57.5% |
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Laminaria spp. | LAM (0,15–0,30 g/kg) FUC (0,24 g/kg) LAM + FUC (0,15 + 0.24 and 0.30 + 0.24 g/kg) |
Weaned piglets (24 d age) | improved digestibility of | [35] | |
DM, LAM and LAM + FUC OM, LAM and LAM + FUC N, LAM NDF, LAM and LAM + FUC GE, LAM and LAM + FUC |
+7.0% – +4.5% +5.9% – +3.5% +5.1% 54.5% – 39.7% +7.3% – +4.3% |
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Laminaria spp. | LAM (0.30 g/kg) FUC (0.24 g/kg) LAM + FUC (0.30 + 0.24 g/kg) |
Weaned piglets (24 d age) | Improved digestibility of | [31] | |
DM, LAM and LAM + FUC N, LAM Ash, LAM and LAM + FUC GE, LAM and LAM + FUC |
+7.9% – +4.5% +6.6% 58.0% – 42.6% +8.5% – +4.3% |
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Laminaria spp. | Extract (0.66 g/kg) k | Weaned piglets (24 d age) | Improved digestibility of | [34] | |
OM, N, Ash, NDF, GE |
+8.8% +8.9% +82.4% +57.5% +10.9% |