Study

Effect of stachyose, raffinose and soya-saponins supplementation on nutrient digestibility, digestive enzymes, gut morphology and growth performance in Atlantic salmon (Salmo salar, L)

  • Published source details Sørensen M., Penn M., El-Mowafi A., Storebakken T., Chunfang C., Øverland M. & Krogdahl Å. (2011) Effect of stachyose, raffinose and soya-saponins supplementation on nutrient digestibility, digestive enzymes, gut morphology and growth performance in Atlantic salmon (Salmo salar, L). Aquaculture, 314, 145-152.

Actions

This study is summarised as evidence for the following.

Action Category

Use an alternative protein source: plant-based

Action Link
Sustainable Aquaculture
  1. Use an alternative protein source: plant-based

    A randomised, replicated, controlled study in Norway (Sørensen et al., 2011) found salmon, Salmo salar, fed soybean meal diets (positive control) had a higher food conversion ratio and lower weight gain than those fed pure fish meal (negative control) or fish meal plus supplements (experimental diets). Average weight gain in the group fed soybean meal was 142kg compared to the negative control diet (237kg) or supplemented diets (180-214kg). The supplemented diets did not interfere with fat or protein digestibility and no morphological changes were recorded in the distal intestine. Over 68 days, groups of salmon were fed one of six diets. These comprised a negative control fish meal diet, a positive control soybean meal diet and one of four diets based on the negative control diet and added supplements (raffinose, stachyose, a combination of raffinose and stachyose and the same combination further supplemented with soya-saponins). Feed conversion ratios, final body weight, fat and protein digestibility and morphological changes were measured.

     

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