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New study: krill diet for shrimp can lead to high body weight and greater survival
May 6, 2022 By Hatchery International staff
The latest study, conducted by India’s Central Institute of Brackishwater Aquaculture (ICAR) and Aker BioMarine, has concluded that krill meal is a beneficial, functional ingredient for Whiteleg shrimp (Penaeus vannamei) dietary feed.
The eight-week feeding trial has revealed that a diet with four to six per cent krill meal can lead to higher body weight and can significantly increase survival rates among the shrimp.
The feeding trial analysed the impact with moderate (12%) and low (6%) fishmeal concentrations. Varying amounts of krill, between 0 to 6%, were added to these diets, which the shrimp received thrice daily throughout the experiment. Shrimp fed 6% krill meal in the diet had the highest body weight at the end of the study. The shrimp showed a higher content of n-3 polyunsaturated fatty acids with the 6% diet.
The study is titled “Growth, fatty acid composition, immune-related gene expression, histology and haematology indices of Penaeus vannamei fed graded levels of Antarctic krill meal at two different fishmeal concentrations” and it was authored by K.Ambasankar et al. AkerBioMarine provided the krill meal product, QRILL Aqua, for the study’s feeding trials. The study is be available upon request from Aker BioMarine.
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