000069961 001__ 69961 000069961 005__ 20190709135539.0 000069961 0247_ $$2doi$$a10.2527/asasann.2017.018 000069961 0248_ $$2sideral$$a105134 000069961 037__ $$aART-2017-105134 000069961 041__ $$aeng 000069961 100__ $$aOrnaghi, M.G. 000069961 245__ $$aEssential oils in the diet of young bulls: Effect on animal temperament. 000069961 260__ $$c2017 000069961 5060_ $$aAccess copy available to the general public$$fUnrestricted 000069961 5203_ $$aPlant extracts and essential oils can be alternative products to antibiotics, because several plants produce secondary metabolites with antimicrobial properties. Additionally, they may act on the olfactory system, which sends signals to the central nervous system releasing endorphins that may affect the feeling of an animal''s welfare while altering an animal''s temperament. This study was conducted to evaluate the animal temperament of 40 young crossbred bulls (one-half Brown Swiss and one-half Nellore) 10 ± 2.2 mo old with an average BW of 219 ± 11.7 kg. Young bulls were randomly assigned to 1 of 5 diets: control, which had no clove or cinnamon; clove leaf included to supply 3, 500 mg/animal per day; clove leaf included to supply 7, 000 mg/animal per day; essential oil of leaf cinnamon to supply 3, 500 mg/animal per day; or essential oil of leaf cinnamon to supply 7, 000 mg/animal per day. The animal temperament was evaluated by calculating the chute score, exit score, and temperament score for periods (each 28 d during 6 periods) and among diets. The data were submitted to an ANOVA using GLM procedures with SAS version 9.0. The diet and period were considered fixed effects, whereas the animals were considered a random effect. Differences between means were evaluated using a Tukey test of 5% of significance. The addition of clove or cinnamon essential oils did not alter (P > 0.05) animal temperament. The analysis of temperament score (P = 0.55), chute score (P = 0.71), and exit score (P = 0.06) did not show significant differences among the diets. The exit score was similar among the 6 periods (1.57, 1.80, 2.98, 2.02, 2.73, and 2.66, respectively); however, chute score and temperament score were greater (P < 0.001) in the first period compared with other periods. The values for chute score were 1.85, 1.40, 1.35, 1.33, 1.20, 1.17, respectively, and the values for temperament score were 2.31, 1.81, 1.67, 1.69, 1.50, and 1.56, respectively, for periods 1 to 6. The results of this study suggest that clove and cinnamon essential oils can be added as an additive in high-grain finished diets without changing the animal temperament. 000069961 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000069961 590__ $$a1.711$$b2017 000069961 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b12 / 59 = 0.203$$c2017$$dQ1$$eT1 000069961 592__ $$a0.848$$b2017 000069961 593__ $$aAnimal Science and Zoology$$c2017$$dQ1 000069961 593__ $$aFood Science$$c2017$$dQ1 000069961 593__ $$aMedicine (miscellaneous)$$c2017$$dQ2 000069961 593__ $$aGenetics$$c2017$$dQ3 000069961 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000069961 700__ $$aTorrecilhas, J.A. 000069961 700__ $$aPassetti, R.A.C. 000069961 700__ $$aMottin, C. 000069961 700__ $$0(orcid)0000-0001-6420-6364$$aGuerrero, A.$$uUniversidad de Zaragoza 000069961 700__ $$aEiras, C.E. 000069961 700__ $$aRivaroli, D.C. 000069961 700__ $$aRamos, T.R. 000069961 700__ $$aPrado, I.N. 000069961 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal 000069961 773__ $$g95 (2017), 9-9$$pJ. anim. sci.$$tJOURNAL OF ANIMAL SCIENCE$$x0021-8812 000069961 8564_ $$s261175$$uhttps://zaguan.unizar.es/record/69961/files/texto_completo.pdf$$yVersión publicada 000069961 8564_ $$s128292$$uhttps://zaguan.unizar.es/record/69961/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000069961 909CO $$ooai:zaguan.unizar.es:69961$$particulos$$pdriver 000069961 951__ $$a2019-07-09-12:06:44 000069961 980__ $$aARTICLE