Atlantic salmon (Salmo salar) protein hydrolysate in diets for weaning piglets ─ effect on growth performance, intestinal morphometry and microbiota composition

Margareth Opheim, Mikael Lenz Strube, Hallgeir Sterten, Margareth Øverland, Nils Petter Kjos

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Salmon protein hydrolysates (SPH) from two different rest raw materials were evaluated in diets for weaning piglets. Four experimental diets were included in the study: a diet based on plant protein with soy protein as the main protein source (Diet PP), a diet based on fishmeal in exchange for soy protein (Diet FM) and two diets in which different SPH replaced fishmeal in the FM diet. The experimental diets were fed to piglets from the day of weaning until 32 d postweaning. In addition to the record of performance data, an intestinal sampling for mucosal morphometry and microbiota 16S rRNA gene sequencing were performed at day 11 on a subset of the animals. The duodenal villi absorption area was significantly larger in piglets receiving Diets SPH compared with Diet PP (p < 0.02). A significant positive correlation between duodenal villi height and average daily gain during the first 11 d postweaning was detected. Only small differences in intestinal microbiota community and no differences in growth performance were detected between the experimental diets. To conclude, SPH seem to be an interesting novel protein source in weanling piglets.
    Original languageEnglish
    JournalArchives of Animal Nutrition
    Volume70
    Issue number1
    Pages (from-to)44-56
    ISSN1745-039X
    DOIs
    Publication statusPublished - 2016

    Keywords

    • Growth effects
    • Fish waste
    • Hydrolysate
    • Intestinal microorganisms
    • Morphometrics
    • Piglets
    • Weaning

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