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FEATURE products with similar manna/ glucan ratios from Phileo, Lesaffre Table 1: Formulation and compositions of experimental diets (%). Animal Care Business Unit, have Ingredients very different effects in the stimulation of immune parameters Fishmeal 38.5 25 25 25 25 25 and in survival following challenge Soybean protein concentrate 20 20 20 20 20 20 in Vibrio anguillarum. It looks like Soybean meal 0 21 21 21 21 21 not only the mannan and glucan Wheat flour 21 21 21 21 21 21 content is of importance, but the strain and the drying processes Fish oil 6 6.4 6.4 6.4 6.4 6.4 are also key parameters to ensure Monocalcium 1 2.1 2.1 2.1 2.1 2.1 a good effect in aquatic animals. phosphate(Ca(H2PO4)2) Another concept that came out Microcrystalline cellulose 10.1 1 0.975 0.95 0.9 0.8 of these trials was that there is a Phospholipid (93%) 2 2 2 2 2 2 threshold of yeast material to be Choline chloride(50%) 0.4 0.4 0.4 0.4 0.4 0.4 ingested before it starts to kick in and improve the immune system. Vitamin and mineral Premixa 1 1 1 1 1 1 Product origin, quality, dosages Methionine hydroxy analog-Ca(98%) 0 0.1 0.1 0.1 0.1 0.1 and duration of treatment are all Safmannan (mg/kg) 0 0 250 500 1000 2000 clearly linked. Analyzed chemical compositions(dry matter basis %) A trial has been undertaken to further study a dose response of Crude protein 47.6 48.2 48.7 47.9 48.4 48.5 Safmannan® in a marine species. Crude lipid 12.1 12.0 11.7 11.6 11.8 11.6 The objective was twofold: Crude ash 7.86 8.51 8.46 8.52 8.59 8.41 investigate the influence of parietal fractions in diets with a Gross energy(MJ/kg) 21.5 21.3 21.4 21.5 21.4 21.6 reduced amount of fishmeal, and determine the dosage needed for diets were supplemented with 0 (SBM), 250, 500, 1000 and 2000 an optimum immune response (Yu et al 2014). Six diets were designed (see table 1): a high fishmeal diet with g/T of Safmannan®. Juvenile Japanese seabass (18 g) were selected 38.5 percent fish meal inclusion and no soybean meal (HFM) and 5 and distributed into 280 L tanks after 24 h starvation with 30 fish diets with 25 percent fishmeal and 20 percent soybean meal. These per tank, and six tanks per treatment. The water temperature was

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March-April 2015 | INTERNATIONAL AQUAFEED | 19

Mar | Apr 2015 - International Aquafeed magazine  

The March - April 2015 edition of International Aquafeed magazine

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