Flavour preferences conditioned by hedonic and postingestive effects of porcine digestible peptides and soybean concentrate in post weaning piglets

• Published in: Congresos y Jornadas. Serie Producción Animal - Asociación Interprofesional para el Desarrollo Agrario (España) pp. 240 - 242
• Main Authors: Figueroa, J., Universitat Autònoma de Barcelona, Bellaterra (España), Sola Oriol, D., Universitat Autònoma de Barcelona, Bellaterra (España), Vinokurovas, S.L., Universitat Autònoma de Barcelona, Bellaterra (España), Pérez, J.F., Universitat Autònoma de Barcelona, Bellaterra (España)
• Format: Conference Proceeding
• Language: Spanish
• Published: Zaragoza (España) AIDA 2011
• Subjects: ADDITIF; ADDITIVES; ADITIVOS; ANIMAL NUTRITION; APPETABILITE; AROMATISANT; AROMATIZANTES; DESTETE; FEED INTAKE; FEEDING PREFERENCES; FLAVOURINGS; http://www.fao.org/aos/agrovoc#c_118; http://www.fao.org/aos/agrovoc#c_13032; http://www.fao.org/aos/agrovoc#c_15291; http://www.fao.org/aos/agrovoc#c_16126; http://www.fao.org/aos/agrovoc#c_27925; http://www.fao.org/aos/agrovoc#c_2969; http://www.fao.org/aos/agrovoc#c_29779; http://www.fao.org/aos/agrovoc#c_5872; http://www.fao.org/aos/agrovoc#c_6259; INGESTION DE PIENSOS; LECHON; NUTRICION ANIMAL; NUTRITION ANIMALE; PALATABILIDAD; PALATABILITY; PIGLETS; PORCELET; PREFERENCE ALIMENTAIRE; PREFERENCIAS ALIMENTARIAS; PRISE ALIMENTAIRE (ANIMAUX); PROTEINAS; PROTEINE; PROTEINS; SEVRAGE; WEANING
• ISBN: 9788461500628; 8461500628

The low nutrient intake after weaning is the major cause of post-weaning digestive disorders in piglets. It has been described that an initially arbitrary or aversive flavor can become strongly preferred due to a learned association between the flavor and the positive consequences of consuming it (hedonic or postingestive). 480 non-deprived weaning piglets were trained, during 6 days, with one flavor (as a positive conditioned stimulus, CS+) mixed into a protein solution (Soybean Protein Concentrate (SPC) or Porcine Digestible Peptides (PDP)) and another flavor (the CS-) mixed into a neutral solution (water). Double choice test between the CS+ and CS- flavors where performed at d15 and d22 after weaning (in water) and at d29 post-weaning (in feed). Piglets preferred protein-paired flavors at all 3 days; they show a significant preference for the CS+ flavour in the SPC group (55%, 57% and 57%) and in the PDP group (60%, 62% and 55%) for days 15, 22 and 29 respectively (P<0.05). No differences were observed between the conditioning powers of PDP and SPC. The present results indicate that weaning piglets can acquire flavor preferences highly resistant to extinction through conditioning strategies by using protein products.