Candellone, Alessia

Masoero, Giulia

Meineri, Giorgia

Peiretti, P. G.

English

Institutional Research Information System University of Turin

110% of Ross specification tended to decrease feed, energy,and protein efficiencies (quadratic, p¼ .06) and pre-slaugh-tered weight (quadratic, p¼ .10) whereas increased serumuric acid concentration (quadratic, p¼ .05). Increasing Lyslevels decreased serum P concentration (linear, p¼ .02) andimmune response against NDV after the first vaccination (lin-ear, p¼ .09) whereas increasing Met levels tended toincrease serum concentration of cholesterol linked to highdensity lipoproteins (linear, p¼ .09). Met Lys interactionwere observed on serum glucose (p¼ .01) and ALP (ten-dency, p¼ .06), relative weights of rectum (p¼ .02), liver(p¼ .02), and bursa of Fabricius (tendency, p¼ .06). Resultsshowed that optimal growth performance, blood serum param-eters, immune responses, and carcass traits can be achievedif Met and Lys requirements of Ross 308 broilers are satisfiedaccording to the Ross recommendations. Levels of Met andLys higher than NRC specifications (approximately þ10% onaverage over grower and finisher periods for Met and overstarter, grower, and finisher periods for Lys) could be neces-sary for comparable results.AcknowledgementsThe research was funded by Islamic Azad University (RashtBranch) grant number 4.5830.P128Efficiency of in vivo ear flap NIR scanin the detection of differences relatedto diet or pregnancy status in youngrabbit doesAlessia Candellone1, Pier Giorgio Peiretti2, GiorgioMasoero3, Giorgia Meineri11Dipartimento di Scienze Veterinarie, University of Torino,Italy2Istituto di Scienze delle Produzioni Alimentari, ConsiglioNazionale delle Ricerche, Grugliasco, Italy3Accademia di Agricoltura di Torino, ItalyContact: giorgia.meineri@unito.itThe aim was to determine whether in vivo spectroscopy ofthe ear flap was able to detect the diet-related differencesand pregnancy status, with its prognostic in forward or back-ward perspective.Methods. Young grey Carmagnola rabbit does in groups ofeight were fed diets enriched with: linseed at 5% (A); linseedat 5% and hazelnut skins at 1.5% (B); palm oil at 1.8% (C);and a standard diet (D), respectively. After the zero-point(P0) before A.I. a second point (P1) was fixed at d 21. Asmart-NIR device (SCIO, 740-1030 nm) was used.Chemometric analyses of the 331-point spectra were per-formed by using WinISI 1.5, without math pretreatment.Modified Partial Least Squares method was fitted to dummybinary variables. Outliers were identified once and excludedwhen t> 2.0. R2 coefficient in cross-validation was retainedas reference parameter. In parallel, for binary categorical dis-crimination, the proprietary software SCiO lab based on AKA(Also Known As) confusion matrix was used. Results. TheNIR spectra were able to clearly perceive changes from astandard pre-experiment D diet to the A, B and C diets, withR2 around 0.60, while the value was lower for diet D (0.29).This first outcome is favorable for the repeatability of themethod and for a discernment of nutritional factors.Prognostic of gestation in backward mode (scan at P1) wassignificant with mild NIR relationship (0.35), not suitable forpractical uses, while in forward mode prediction (scan at P0)result was poor (0.20). The feeding treatments with differentfatty acid profiles were instead more accurately perceived inthe NIR spectra, especially for the C group, which was discri-minated from the A and B groups with a R2 value of 0.71,which corresponds to a 75% reclassification as AKA.Interestingly, the antioxidant compound of the B diet wasenhanced for a non-pregnant status (0.85 vs 0.12 whenpregnant) and this could indicate the presence ofinteractions between growth and pregnancy requirements, asassessed from skin variations. Conclusions. At thepresent state of knowledge, the miniaturized NIR device lookspromising, mainly for the assessment of body fat composition.As far as the feeding experiment is concerned, it should bepointed out that it is rare to obtain model R2 values as highas those obtained during this preliminary work for a classicdesign, even multivariate ones, without extreme diets. Theskin is an unbiased mirror of health and nutritional status ofrabbits.P129Effects of arbuscular mycorrhizal fungiand low fertilizer supply on foragequality, milk traits and profitabilityPınar Uzun1, Felicia Masucci1, Maria L. Varricchio1,Francesco Serrapica2, Lucia Ottaiano1, Antonio DiFrancia11Dipartimento di Agraria, University of Napoli “FedericoII”, Italy2Scuola di Scienze Agrarie, Forestali, Alimentari edAmbientali, University of Basilicata, ItalyContact: masucci@unina.itThe combined effect of arbuscular mycorrhizal fungi and lowfertilizer supply on crop yield, in vitro rumen degradability ofDM (IVDMD) and NDF (IVNDFD), and milk traits was[Ital J Anim Sci vol.16:s1, 2017] [page 219]Italian Journal of Animal Science 2017; volume 16: supplement 1NUTRITION AND FEEDINGDownloaded by [Universita degli Studi di Torino] at 08:14 11 September 2017 

Efficiency of in vivo ear flap NIR scan in the detection of differences related to diet or pregnancy status in young rabbit does.

https://iris.unito.it/bitstream/2318/1647524/1/TJAS%20cover.pdf

Efficiency of in vivo ear flap NIR scan in the detection of differences related to diet or pregnancy status in young rabbit does.

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