000124056 001__ 124056
000124056 005__ 20241125101130.0
000124056 0247_ $$2doi$$a10.1016/j.anifeedsci.2022.115517
000124056 0248_ $$2sideral$$a132570
000124056 037__ $$aART-2023-132570
000124056 041__ $$aeng
000124056 100__ $$0(orcid)0000-0001-5880-6021$$aBelanche, Alejandro$$uUniversidad de Zaragoza
000124056 245__ $$aInclusion of a fish oil processing fraction as additive in diets for weaning piglets
000124056 260__ $$c2023
000124056 5060_ $$aAccess copy available to the general public$$fUnrestricted
000124056 5203_ $$aThe weaning process in pig production is commonly associated to low feed intake, slow growth rate and increased morbidity of piglets. This study evaluates a nutritional intervention consisting of supplementing with a fish oil product rich in mono- and diglycerides (FOMG) and containing 0.069 g/g of ω-3, to improve animal health and productive performance during the post-weaning period. In a preliminary experiment (experiment 1), a total of 136 piglets were randomly distributed in two groups (4 pens per group) to evaluate the productive effects of dietary supplementation with FOMG at 15 g/kg (T15) in substitution of lard (T0) as fat source during the post-weaning period in a commercial farm. Besides, in experiment 2 a total of 72 weaned piglets were fed on a control diet (T0) or supplemented with 15 (T15) or 30 g FOMG/kg (T30) in substitution of sunflower oil, with 6 pens of 4 piglets per treatment. In experiment 2 growth and intake were weekly controlled, and blood was sampled on days 14 and 34. At day 35 post-weaning, 6 piglets per treatment were euthanized to study the microbial fermentation and the ileal and caecal bacterial community by 16 S amplicon sequencing. Results indicated that piglets fed T15 diet tended to have a higher growth gain during the post-weaning period in experiment 1 (P = 0.067). This increased growth was partially explained by a greater feed intake (0.14 higher) but also due to improved animal health as showed by the lower proportion of neutrophils (P = 0.006), blood cortisol (P = 0.098) and morbidity (P < 0.05) in experiment 2. Treatment T15 also tended (P = 0.064) to promote a higher volatile fatty acids (VFA) concentration at the ileum, which could be compatible with a higher nutrient absorption and a subsequent lower VFA concentration in the hindgut (P < 0.001). Moreover, FOMG supplementation at T15 exerted modulatory effects on the gut microbiota promoting a shift in the bacterial community structure, lower diversity (Richness index, P < 0.05) and a trend (P = 0.076) for a higher butyrate proportion at the ileum, together with a lower (P < 0.05) and most favourable Firmicutes-to-Bacteroidetes ratio at the caecum. On the contrary, T30 diet promoted less beneficial effects than T15. These findings indicated that supplementation of piglets with FOMG at a level of 15 g/kg represents a suitable strategy to improve pig performance and gut health during the post-weaning period.
000124056 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/RYC2019-027764-I/AEI/10.13039/501100011033
000124056 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000124056 590__ $$a2.5$$b2023
000124056 592__ $$a0.69$$b2023
000124056 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b13 / 80 = 0.162$$c2023$$dQ1$$eT1
000124056 593__ $$aAnimal Science and Zoology$$c2023$$dQ1
000124056 594__ $$a6.0$$b2023
000124056 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000124056 700__ $$aDiago, Sergio
000124056 700__ $$0(orcid)0000-0002-0712-1185$$aFondevila, Manuel$$uUniversidad de Zaragoza
000124056 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000124056 773__ $$g295 (2023), 115517 [13 pp.]$$pAnim. feed sci. technol.$$tAnimal Feed Science and Technology$$x0377-8401
000124056 8564_ $$s2453088$$uhttps://zaguan.unizar.es/record/124056/files/texto_completo.pdf$$yVersión publicada
000124056 8564_ $$s2063328$$uhttps://zaguan.unizar.es/record/124056/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000124056 909CO $$ooai:zaguan.unizar.es:124056$$particulos$$pdriver
000124056 951__ $$a2024-11-22-11:58:50
000124056 980__ $$aARTICLE