Prenatal exposure to innately preferred D-limonene and trans-anethole does not overcome innate aversion to eucalyptol, affecting growth performance of weanling piglets
Reyes-Camacho, David (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Pérez Hernández, José Francisco (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Vinyeta, Ester (Delacon Biotechnik GmbH)
Aumiller, Tobias (Delacon Biotechnik GmbH)
Van der Klis, Juan D. (Delacon Biotechnik GmbH)
Solà Oriol, David (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)

Date:	2021
Abstract:	In the present research, two studies were performed to determine the effects of specific botanical compounds (BCs) on the innate feed preference and feed intake of piglets, as follows: Exp. 1 studied the innate feed preferences of post-weaning piglets using a double-choice feeding test. A total of 828 weaned piglets were distributed into 36 pens (23 pigs/pen) and assigned to three dietary pair choice feeding options (n = 12): unsupplemented prestarter diets (reference) versus reference plus D-limonene, trans-anethole, or eucalyptol. Piglets showed a preference for diets with D-limonene (53. 8%) and trans-anethole (54. 5%), and an aversion to eucalyptol (41. 6%) (p < 0. 05). Exp. 2 studied whether the prenatal and perinatal exposure to D-limonene, trans-anethole, and eucalyptol influences the feed intake and growth of newly-weaned piglets. Twenty-eight gestating and lactating sows were distributed into two dietary treatments (n = 14): unsupplemented Control diets or Control plus a blend of BCs (BBC; containing D-limonene, trans-anethole, and eucalyptol). D-limonene, trans-anethole, and eucalyptol were transferred into the placental fluid, and D-limonene and trans-anethole into the milk (p < 0. 05). Furthermore, weanling piglets (n = 200; Control) and (n = 203; BBC) received the same treatment as their mothers in prestarter diets. The early response after weaning showed that piglets' post-weaning BW gain was higher in the Control (p < 0. 05) group than in those exposed to BBC. In conclusion, prenatal exposure to preferred D-limonene and trans-anethole, or familiarity to eucalyptol did not help to overcome the innate aversion to eucalyptol and its negative effect on weanling piglets' BW.
Note:	Funding: Animal Nutrition and Welfare Service (SNIBA) of the Autonomous University of Barcelona.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Botanical compounds ; Weanling piglets ; Innate feed preference ; Sensory maternal learning ; Growth performance ; Maternal transfer ; Hyperprolific sows
Published in:	Animals, Vol. 11 Núm. 7 (july 2021) , p. 2062, ISSN 2076-2615

DOI: 10.3390/ani11072062
PMID: 34359190

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