title: Atlantic salmon (Salmo salar) protein hydrolysate in diets for weaning piglets ─ effect on growth performance, intestinal morphometry and microbiota composition.
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.
authors.affiliation: a Felleskjøpet Fôrutvikling AS , Trondheim , Norway.|b Department of Animal and Aquacultural Sciences , Norwegian University of Life Sciences , Aas , Norway.
authors.forename: Margareth
authors.initials: M
authors.lastname: Opheim
authors.affiliation: c National Veterinary Institute, Technical University of Denmark , Frederiksberg C , Denmark.
authors.forename: Mikael Lenz
authors.initials: ML
authors.lastname: Strube
authors.affiliation: a Felleskjøpet Fôrutvikling AS , Trondheim , Norway.
authors.forename: Hallgeir
authors.initials: H
authors.lastname: Sterten
authors.affiliation: b Department of Animal and Aquacultural Sciences , Norwegian University of Life Sciences , Aas , Norway.
authors.forename: Margareth
authors.initials: M
authors.lastname: Øverland
authors.affiliation: b Department of Animal and Aquacultural Sciences , Norwegian University of Life Sciences , Aas , Norway.
authors.forename: Nils Petter
authors.initials: NP
authors.lastname: Kjos
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D004032:Diet / Q000662:veterinary*; D004044:Dietary Proteins / Q000378:metabolism*; D005260:Female; D000069196:Gastrointestinal Microbiome / Q000502:physiology; D007421:Intestine, Small / Q000033:anatomy & histology / Q000382:microbiology; D008297:Male; D011492:Protein Hydrolysates / Q000378:metabolism*; D011897:Random Allocation; D020317:Salmo salar; D034421:Sus scrofa / Q000033:anatomy & histology / Q000254:growth & development / Q000382:microbiology / Q000502:physiology*
chemical_list: D004044:Dietary Proteins; D011492:Protein Hydrolysates
keywords: Growth effects; fish waste; hydrolysates; intestinal microorganisms; morphometrics; piglets; weaning