J. L. Aalhus, S. D. Jones, A. L. Schaefer, A. K. Tong, W. M. Robertson et al., The effect of ractopamine on performance, carcass composition and meat quality of finishing pigs. Can, J. Anim. Sci, vol.70, pp.943-952, 1990.

J. L. Aalhus, A. L. Shaefer, A. C. Murray, and S. D. Jones, The effect of ractopamine-HCl-HCl on myofibre distribution and morphology and their relation to meat quality in swine, Meat Sci, vol.31, pp.397-409, 1992.

P. Affentranger, C. Gerwig, G. J. Seewer, D. Schworer, and N. Kunzi, Growth and carcass characteristics as well as meat and fat quality of three types of pigs under different feeding regimens, Livest. Prod. Sci, vol.45, pp.187-196, 1996.

D. B. Anderson, Relationship of blood lactate and meat quality in market hogs, Reciprocal Meat Conf, 2010.

R. H. Bradshaw, R. F. Parrott, J. A. Goode, D. M. Lloyd, R. Rodway et al., Stress and travel sickness in pigs: Effects of road transport on plasma concentrations of cortisol, beta-endorphin and lysine vasopressin, Anim. Sci, vol.63, pp.507-516, 1996.

D. M. Broom and K. G. Johnson, Stress and animal welfare, Animal Behaviour Series, 1993.

C. S. Busse and M. M. Shea-moore, Behavioural and physiological responses to transportation stress, J. Anim. Sci, vol.77, issue.1, p.147, 1999.

, Guide to the care and use of experimental animals, vol.1

S. N. Carr, D. J. Ivers, D. B. Anderson, D. J. Jones, D. H. Mowery et al., The effects of ractopamine hydrochloride on lean carcass yields and pork quality characteristics, J. Anim. Sci, vol.83, pp.2886-2893, 2005.

J. A. Correa, S. Méthot, and L. Faucitano, A modified meat juice container (EZ-DripLoss) procedure for a more reliable assessment of drip loss and related quality changes in pork meat, J. Muscle Foods, vol.18, pp.67-77, 2007.

J. A. Correa, S. Torrey, N. Devillers, J. P. Laforest, H. W. Gonyou et al., Effects of different moving devices at loading on stress response and meat quality in pigs, J. Anim. Sci, vol.88, pp.4086-4093, 2010.

P. K. Crome, F. K. Mckeith, T. R. Carr, D. J. Jones, D. H. Mowrey et al., Effect of ractopamine on growth performance, carcass composition, and cutting yields of pigs slaughtered at 107 and 125 kilograms, J. Anim. Sci, vol.74, pp.709-716, 1996.

G. M. Cronin, F. R. Dunshea, K. L. Butler, I. Mccauley, J. L. Barnett et al., The effects of immuno-castration and surgical castration on the behaviour and consequently growth of group-housed, male finisher pigs, Appl. Anim. Behav. Sci, vol.81, pp.111-126, 2003.

R. B. D'eath, Individual aggressiveness measured in a resident-intruder test predicts the persistence of aggressive behaviour and weight gain of young pigs after mixing, Appl. Anim. Behav. Sci, vol.77, pp.267-283, 2002.

F. F. Depreux, A. L. Grant, D. B. Anderson, and D. E. Gerrard, Paylean alters myosin heavy chain isoform content in pig muscle, J. Anim. Sci, vol.80, pp.1888-1894, 2002.

D. N. D'souza and B. P. Mullan, Interactions between genotype and castration method can influence the eating quality characteristics of pork from male pigs, Anim. Sci, vol.77, pp.67-72, 2003.

F. R. Dunshea, C. Colantoni, K. Howard, I. Mccauley, P. Jackson et al., Vaccination of boars with a GnRF vaccine (Improvac) eliminates boar taint and increases growth performance, J. Anim. Sci, vol.79, pp.2524-2535, 2001.

D. B. Edwards, R. O. Bates, and W. N. Osburn, Evaluation of Duroc-vs. Piétrain-sired pigs for carcass and meat quality measures, J. Anim. Sci, vol.81, pp.1895-1899, 2003.

L. N. Edwards, T. E. Engle, J. A. Correa, M. A. Paradis, T. Grandin et al., The relationship between exsanguination blood lactate concentration and carcass quality in slaughter pigs, Meat Sci, vol.85, pp.435-440, 2010.

E. Fàbrega, A. Diestre, J. Font, D. Carrión, A. Velarde et al., Differences in open field behavior between heterozygous and homozygous negative gilts for the RYR(1) gene, J. Appl. Anim. Welf. Sci, vol.7, pp.83-93, 2004.

E. Fàbrega, A. Velarde, J. Cros, M. Gispert, P. Suarez et al., Effect of vaccination against gonadotrophin-releasing hormone, using Improvac, on growth performance, body composition, behaviour and acute phase proteins, Livest. Sci, vol.132, pp.53-59, 2010.

L. Faucitano, Causes of skin damage to pig carcasses. Can, J. Anim. Sci, vol.81, pp.39-45, 2001.

M. Font-i-furnols, M. Gispert, L. Guerrero, A. Velarde, J. Tibau et al., Consumers' sensory acceptability of pork from immunocastrated pigs, Meat Sci, vol.80, pp.1013-1018, 2008.

A. Foury, N. A. Geverink, M. Gil, M. Gispert, M. Hortos et al., Stress neuroendocrine profiles in five pig breeding lines and the relationship with carcass composition, Animal, vol.1, pp.973-982, 2007.

M. Gispert, M. Font-i-furnols, M. Gil, A. Velarde, A. Diestre et al., Relationships between carcass quality parameters and genetic types, Meat Sci, vol.77, pp.397-404, 2007.

M. Gispert, M. Oliver, A. Velarde, A. P. Suarez, J. Pérez et al., Carcass and meat quality characteristics of immunocastrated male, surgically castrated male, entire male and female pigs, Meat Sci, vol.85, pp.664-670, 2010.

J. F. Gracey and D. S. Collins, Humane slaughter, Meat hygiene. Baillière Tindall, pp.143-167, 1992.

M. Hay and P. Mormède, Improved determination of urinary cortisol and cortisone, or corticosterone and 11-dehydrocorticosterone by high-performance liquid chromatography with ultraviolet absorbance detection, J. Chromatogr. B Analyt. Technol. Biomed. Life Sci, vol.702, pp.33-39, 1997.
URL : https://hal.archives-ouvertes.fr/hal-02699198

M. Hay and P. Mormède, Determination of catecholamines and methoxy-catecholamines excretion patterns in pig and rat urine by ion-exchange liquid chromatography with electrochemical detection, J. Chromatogr. B Analyt. Technol. Biomed. Life Sci, vol.703, pp.15-23, 1997.

D. Hazard, L. Liaubet, M. San, P. Cristobal, and . Mormede, Gene array and real time PCR analysis of the adrenal sensitivity to adrenocorticotropic hormone in pig, BMC Genomics, vol.9, p.101, 2008.
URL : https://hal.archives-ouvertes.fr/hal-02661101

R. B. Hinson, B. R. Wiegand, M. J. Ritter, G. L. Allee, and S. N. Carr, Impact of dietary energy level and ractopamine on growth performance, carcass characteristics, and meat quality of finishing pigs, J. Anim. Sci, vol.89, pp.3572-3579, 2011.

D. L. Hopkins, P. J. Littlefield, and J. M. Thompson, A research note on factors affecting the determination of myofibrillar fragmentation, Meat Sci, vol.56, pp.19-22, 2000.

. Itp, Notation des hématomes sur couenne -porcs vivant ou carcasse. Institute Technique du Porc, 1996.

P. Jaros, E. Bürgi, K. D. Stärk, R. Claus, D. Hennessy et al., Effect of active immunization against GnRF on androstenone concentration, growth performance and carcass quality in intact male pigs, Livest. Prod. Sci, vol.92, pp.31-38, 2005.

L. W. Kutzler, S. F. Holmer, D. D. Boler, S. N. Carr, M. J. Ritter et al., Comparison of varying doses and durations of ractopamine hydrochloride on late-finishing pig carcass characteristics and meat quality, J. Anim. Sci, vol.89, pp.2176-2188, 2011.

C. M. Leick, C. L. Puls, M. Ellis, J. Killefer, T. R. Carr et al.,

K. Mckeith, Effect of distillers dried grains with solubles and ractopamine (Paylean) on quality and shelf-life of fresh pork and bacon, J. Anim. Sci, vol.88, pp.2751-2766, 2010.

J. N. Marchant-forde, D. C. Lay, E. A. Pajor, B. T. Richert, and A. P. Schinckel, The effects of ractopamine on the behaviour and physiology of finishing pigs, J. Anim. Sci, vol.81, pp.416-422, 2003.

. Mlc, Concern at rindside damage in pigs. Meat and Marketing Technical Notes, pp.14-16, 1985.

K. L. Moore, F. R. Dunshea, B. P. Mullan, D. P. Hennessy, and D. N. Souza, Ractopamine supplementation increases lean deposition in entire and immunocastrated male pigs, Anim. Prod. Sci, vol.49, pp.1113-1119, 2009.

P. Mormède, A. Foury, P. Barat, J. Corcuff, E. Terenina et al., Molecular genetics of hypothalamic-pituitary-adrenal axis activity and function, Ann. N. Y. Acad. Sci, vol.1220, pp.127-136, 2011.

H. Nakai, F. Saito, T. Ikeda, S. Ando, and A. Komatsu, Standards models of pork color, Bull. Natl. Inst. Anim. Ind, vol.29, pp.69-74, 1975.

J. F. Patience, P. Shand, Z. Pietrasik, J. Merrill, G. Vessie et al., The effect of ractopamine supplementation at 5 mg/kg of swine finishing diets on growth performance, carcass composition and ultimate pork quality. Can, J. Anim. Sci, vol.89, pp.53-66, 2009.

C. Pauly, P. Spring, J. V. O'doherty, S. A. Kragten, and G. Bee, Growth performance, carcass characteristics, and meat quality of group-penned surgically castrated, immunocastrated (Improvac®) and entire male pigs and individually penned male pigs, Animal, vol.3, pp.1057-1066, 2009.

A. D. Pitts, D. M. Weary, E. A. Pajor, and D. Fraser, Mixing at young ages reduces fighting in unacquainted domestic pigs, Appl. Anim. Behav. Sci, vol.68, pp.191-197, 2000.

R. Poletto, R. L. Meisel, B. T. Richert, H. W. Cheng, and J. N. Marchant-forde, Behavior and peripheral amine concentrations in relation to ractopamine feeding, gender and social rank of finishing pigs, J. Anim. Sci, vol.88, pp.1184-1194, 2010.

C. Rehfeldt, I. Fielder, G. Dietl, and K. Ender, Myogenesis and postnatal skeletal muscle cell growth as influenced by selection, Livest. Prod. Sci, vol.66, pp.177-188, 2000.

Y. C. Ryu and B. C. Kim, The relationship between muscle fiber characteristics, postmortem metabolic rate, and meat quality of pig longissimus dorsi muscle, Meat Sci, vol.71, pp.351-357, 2005.

A. P. Schinckel, B. T. Richert, C. T. Herr, M. E. Einstein, and D. C. Kendall, Effects of ractopamine on swine growth, carcass composition, and quality, Proc. 2nd Int. Virtual Conf. on Pork Quality, pp.324-335, 2001.

M. T. See, T. A. Armstrong, and W. C. Weldon, Effect of a ractopamine feeding program on growth performance and carcass composition in finishing pigs, J. Anim. Sci, vol.82, pp.2474-2480, 2004.

G. M. Stoller, H. N. Zerby, S. J. Moeller, T. J. Baas, C. Johnson et al., The effect of feeding ractopamine (Paylean) on muscle quality and sensory characteristics in three diverse genetic lines of swine, J. Anim. Sci, vol.81, pp.1508-1516, 2003.

A. C. Strappini, K. Frankena, J. H. Metz, C. Gallo, and B. Kemp, Characteristics of bruises in carcasses of cows sourced from farms or from livestock markets, Animal, vol.6, pp.502-509, 2012.

M. J. Van-oeckel, N. Warnants, and C. V. Boucqué, Pork tenderness estimation by taste panel, Warner-Bratzler shear force and on-line methods, Meat Sci, vol.53, pp.259-267, 1999.

C. Werner, R. Natter, K. Schellander, and M. Wicke, Changes of the activities of glycolytic and oxidative enzymes before and after slaughter in the longissimus muscle of Piétrain and Duroc pigs and a Duroc-Piétrain crossbreed, J. Anim. Sci, vol.88, pp.4016-4025, 2010.

A. V. Weschenfelder, S. Torrey, N. Devillers, T. Crowe, A. Bassols et al., Effects of trailer design on animal welfare parameters and carcass and meat quality of three Pietrain crosses being transported over a long distance, J. Anim. Sci, vol.90, pp.3220-3231, 2012.

Y. L. Xiong, M. J. Gower, C. Lib, C. A. Elmore, G. L. Cromwell et al., Effect of dietary ractopamine on tenderness and postmortem protein degradation of pork muscle, Meat Sci, vol.73, pp.600-604, 2006.

G. Zamaratskaia, L. Rydhmer, H. K. Andersson, C. Gang, L. Séverine et al., Long-term effect of vaccination against gonadotropin-releasing hormone, using Improvac?, on hormonal profile and behaviour of male pigs, Anim. Reprod. Sci, vol.108, pp.37-48, 2008.