A5024883668- Veterinary Equine Medical Research
- Reproductive Physiology in Livestock
- Reproductive Biology and Fertility
- Helminth infection and control
- Genetic and phenotypic traits in livestock
- Sperm and Testicular Function
- Plant and fungal interactions
- Animal Behavior and Welfare Studies
- Human-Animal Interaction Studies
- Ruminant Nutrition and Digestive Physiology
- Coccidia and coccidiosis research
- Gut microbiota and health
- Effects of Environmental Stressors on Livestock
- Muscle metabolism and nutrition
- Agriculture and Rural Development Research
- Ovarian function and disorders
- Parasite Biology and Host Interactions
- Hypothalamic control of reproductive hormones
- Animal and Plant Science Education
- Reproductive System and Pregnancy
- Bioenergy crop production and management
- Olfactory and Sensory Function Studies
- Hormonal and reproductive studies
- Meat and Animal Product Quality
- Horticultural and Viticultural Research
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2021-2025
Centre Val de Loire
2018-2025
Département Santé Animale
2014-2024
Biologie des Oiseaux et Aviculture
2019-2024
Université de Tours
2014-2023
Physiologie de la Reproduction et des Comportements
2006-2023
Institut National de la Recherche Agronomique
2014-2018
Infectiologie Animale et Santé Publique
2017
Centre National de la Recherche Scientifique
2014
Recent studies have demonstrated that horses can recognize humans based simply on visual information. However, none of these investigated whether this involves the recognition face itself, or identifying people from non-complex external clues, such as hair colour. To go beyond we wanted to know certain features were indispensable for (e.g. colours, eyes). The 11 in study had previously learned identify four unfamiliar faces (portrait view and colour) presented repeatedly a screen. We thus...
Weaning has been described as one of the most stressful events in life horses. Given importance interaction between gut-brain axis and gut microbiota under stress, we evaluated (i) effect two different weaning methods on composition across time (ii) how shifts after affect host. A total 34 foals were randomly subjected to a progressive (P) or an abrupt (A) method. In P method, mares separated from at progressively increasing intervals every day, starting five minutes during fourth week prior...
Gastrointestinal strongyles are a major threat to horses' health and welfare. Given that inhabit the same niche as gut microbiota, they may interact with each other. These beneficial or detrimental interactions unknown in horses could partly explain contrasted susceptibility infection between individuals. To address these questions, an experimental pasture trial 20 worm-free female Welsh ponies (10 susceptible (S) 10 resistant (R) parasite infection) was implemented for five months. Fecal...
The nature and strength of interactions entertained among helminths their host gut microbiota remain largely unexplored. Using 40 naturally infected Welsh ponies, we tracked the microbiota-cyathostomin temporal dynamics stability before following anthelmintic treatment associated blood transcriptomic response. High shedders harbored 14 species cyathostomins, dominated by Cylicocyclus nassatus. They exhibited a highly diverse dynamic microbiota, with butyrate-producing Clostridia likely...
In equids, placentation is diffuse and nutrient supply to the fetus determined by uterine size. This correlates with maternal size affects intra-uterine development subsequent post-natal growth, as well insulin sensitivity in newborn. Long-term effects remain be described. this study, fetal growth was enhanced or restricted through ET using pony (P), saddlebred (S) draft (D) horses. Control P-P (n = 21) S-S 28) pregnancies were obtained AI. Enhanced transferring P S embryos into D mares...
Cyathostomins are ubiquitous equine nematodes. Infection can result in larval cyathostominosis due to mass emergence. Although faecal egg count (FEC) tests provide estimates of shedding, these correlate poorly with burden and no information on mucosal/luminal larvae. Previous studies describe a serum IgG(T)-based ELISA (CT3) that exhibits utility for detection cyathostomins. Here, this is optimised/validated commercial application using sera from horses which data were available....
Basic knowledge on the biology and epidemiology of equine strongylid species still needs to be improved contribute design better parasite control strategies. Nemabiome metabarcoding is a convenient tool quantify identify in bulk samples that could overcome hurdle cyathostomin morphological identification represents. To date, this approach has relied internal transcribed spacer 2 (ITS-2) ribosomal RNA gene, with limited investigation its predictive performance for communities. Using DNA pools...
The welfare of an animal is closely linked to their emotional experiences, making it essential identify reliable indicators these emotions. This study aimed behaviours and facial movements in horses experiencing contrasting valence, triggered by the anticipation a positive condition (going pasture) or negative alone novel environment). Twenty were daily trained wait starting box before being exposed two conditions. After one week training training, we analysed horses' behaviours, cortisol...
Abstract Horses are capable of identifying individual conspecifics based on olfactory, auditory or visual cues. However, this raises the questions their ability to recognize human beings and basis what This study investigated whether horses could differentiate between a familiar unfamiliar from photographs faces. Eleven were trained discrimination task using computer-controlled screen, which two presented simultaneously (32 trials/session): touching one was rewarded (S+) other not (S−). In...
Abstract Social interactions shape both physiological and behavioural development of offspring poor care/early caregiver loss are known to promote negative outcomes in adulthood animals humans. How affiliative behaviours impact future remains unknown. Here, we used Equus caballus (domestic horse) as a model investigate this question. By coupling magnetic resonance imaging, longitudinal biobehavioural assessment advanced multivariate statistical modelling found that maternal presence during...
Kisspeptin has emerged as the most potent gonadotropin-releasing hormone (GnRH) secretagogue and appears to represent penultimate step in central control of reproduction. In sheep, we showed that kisspeptin could be used manipulate gonadotropin secretion ovulation. Prompted by these results, decided investigate whether an ovulation-inducing agent another photoperiodic domestic mammal, horse. Equine kisspeptin-10 (eKp10) was administered intravenously bolus injections or short- long-term...
Implantation failure and genetic developmental disabilities in mammals are caused by errors chromosome segregation originating mainly the oocyte during meiosis I. Some conditions, like maternal ageing or vitro maturation (IVM), increase incidence of aneuploidy. Here oocytes from adult mares were used to investigate a monovulatory species. Experiments conducted compare: (1) aneuploidy, (2) morphology spindle, (3) acetylation lysine 16 on histone H4 (H4K16) (4) relative amount...
Abstract In a recent experiment, we showed that horses are sensitive to pet-directed speech (PDS), kind of used talk companion animals is characterized by high pitch and wide variations. When talked in PDS rather than adult-directed (ADS), reacted more favorably during grooming pointing task. However, the mechanism behind their response remains unclear: does draw horses’ attention arouse them, or it make emotional state positive? this study, an innovative paradigm which female watched videos...
Under natural conditions, foals stop nursing from their dam at approximately-9 months old, but bond persists until 1.5-2.5 years of age. In contrast, in horse breeding, are generally artificially weaned and totally separated 5-7 months. However, it is not known whether the between her foal maintained after artificial weaning. The aim this study was (1) to assess still recognise prefer over other familiar mares several weaning (2) evaluate preference for more pronounced fillies or colts....
The field of assisted reproduction has been developed to treat infertility in women, companion animals, and endangered species. In the horse, also allows for production embryos from high performers without interrupting their sports career contributes an increase number foals mares genetic value. present manuscript describes procedures used collecting immature mature oocytes horse ovaries using ovum pick-up (OPU). These were then investigate incidence aneuploidy by adapting a protocol...