Oct 25, 2018

Spontaneous intake and long-term effects of essential oils after a negative postnatal experience in chicks

BioRxiv : the Preprint Server for Biology
Laurence GuilloteauChristine Leterrier

Abstract

The postnatal period is critical for broiler chicks as they are exposed to, possibly stressful, environmental changes in the hatchery and during transportation to the rearing houses. The ability of broiler chicks to spontaneously drink essential oils (EO) to mitigate the effects of a negative postnatal experience was tested. Chicks were either immediately placed in the rearing facility (C group), or subjected to a 24h-delay period before their placement (D group), mimicking the possible transportation delay in commercial conditions. In experiment 1, each group had access to either water only or to water and one EO (cardamom, marjoram or verbena) from D1 to D13. The verbena EO intake was higher in the D group than in the C group from D1 to D6 and the cardamom EO intake was lower in the D group than in the C group from D6 to D13. In experiment 2, half of the groups had access to water only and the other half was offered water and the 3 EO simultaneously. The EO were not differently chosen by chicks between D and C groups except a lower cardamom EO intake was observed in the D group than in the C group from D6 to D12. The delayed placement of the D group reduced chicken growth until 34 days of age and temporarily increased the fee...Continue Reading

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Mentioned in this Paper

Verbena (Plant)
Use1 protein, mouse
Verbena, Flower essence
Marjoram (Spice)
Experience
Eating
Cardamom extract
Elettaria cardamomum
Mental Disorders
Oils

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