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November 2017 - present
March 2017 - August 2017
January 2012 - June 2012
Publications
Publications (20)
Intensification in animal production has led to increased indoor confinement for animals, limiting opportunities to meet some behavioral needs such as exploration and locomotion. This poses a crucial question as to how these restrictions can be alleviated by providing additional space designed with that specific purpose in mind. Working with cows h...
Intensification in animal productions has led to increased indoor confinement for animals, thereby limiting their opportunities to fulfill some behavioural needs such as exploration and locomotion. This poses a crucial question as to how these restrictions can be alleviated by providing additional space designed with that specific purpose in mind....
In many species, prenatal maternal stress leads to long-lasting changes in physiological and behavioural individual characteristics. However, these prenatal effects can be modulated by the postnatal environment and especially by maternal care. The impact of maternal care on the modulation of prenatal maternal stress effects has been investigated ma...
L’étude du comportement animal est très demandeuse en temps d’observation. L’analyse automatique de vidéos est une voie prometteuse de simplification. Des méthodes d’intelligence artificielle (par réseaux de neurones de type Inception) ont ainsi été développées en utilisant l’outil Tensorflow. Deux applications ont été mises en œuvre pour i) identi...
The neural system underlying maternal caregiving has often been studied using laboratory rodents and a few other mammalian species. This research shows that the medial preoptic area (mPOA) integrates sensory cues from the young that, along with hormonal and other environmental signals, control maternal acceptance of neonates. The mPOA then activate...
Confinement and restriction of movement are a reality for most dairy cows. Providing outdoor access is one method to increase movement opportunities. However, leading cows to an outdoor exercise area increases their exposure to manipulations different from those of an indoor housing system. These situations have the potential to induce fear reactio...
Adoption is an usual procedure to experiment non-genomic influences on young development. However relatedness may be a variation factor of maternal behaviour who can recognize and/or discriminate her own young that non-related ones. Here we investigate the influence of relatedness on maternal and chicks' behaviour during breeding period in a precoc...
Beyond the genetic links between mother and young, prenatal effects experienced by offspring can modulate their mother’s behaviour and stress. Here we investigated the consequences of stress-induced prenatal maternal effects on quail chicks’ behaviour and maternal behaviour. We evaluated how adoptive quail mothers (unstressed) raised chicks of fema...
Les animaux d'élevage sont confrontés à de multiples contraintes environnementales auxquelles ils doivent s'adapter. De plus en plus d'études s'intéressent à l'impact de l'environnement précoce sur les phénotypes des animaux et leurs capacités à s'adapter aux différents challenges rencontrés ultérieurement. Dans cette revue, nous nous intéresserons...
Maternal behavior develops differently depending on characteristics of the individual, such as age or emotional reactivity. Social motivation, defined as the propensity to establish social contact, has been little studied in relation to maternal behavior in birds. In addition, the transition to motherhood is a time of plasticity in the brain of the...
Sex is a trait which leads mothers to invest asymmetrically in their young, especially in species with a strong dimorphism. Authors usually consider that members of the largest sex require the most investment by mothers. In other cases, mothers care preferentially for members of the sex that increase their fitness, e.g. males, in numerous species....
Maternal behavior is known to influence the behavioral development of young. Recently, it was demonstrated that maternal behavior also differed according to sex chicks and brood sex composition. So, here, we explored if these factors influenced behavioral development of chicks quail when they were brooded, and what characteristics of chicks and fos...
Le développement comportemental de l’individu est particulièrement sensible aux influences sociales précoces. La mère, en tant que partenaire privilégié des jeunes dès la naissance, joue un rôle primordial dans leur survie et leur développement. Chez l’oiseau précoce, s’il est bien établi que le comportement maternel varie en fonction des caractéri...
Nous avons testé l’hypothèse que l’embryon d’oiseau pouvait mémoriser les caractéristiques chimiosensorielles de l’alimentation maternelle et que cet apprentissage perceptif pouvait guider leurs préférences alimentaires après éclosion. Des poules pondeuses ont été nourries avec un aliment standard enrichi avec 2% d’huile de hareng - connue pour con...
In chicken, oils in the maternal diet confer a specific scent to the yolk. Embryos are known to perceive and memorize chemosensory signals of the surrounding environment; however, the potential impact of the maternal diet has not previously been investigated. In the present study, we hypothesized that chicken embryos memorize the chemical signals o...
