2 results match your criteria: "Center Val de Loire[Affiliation]"
The influence of selection in wild pheasant (Phasianus colchicus) breeding on reproduction and the involvement of the chemerin system.
Poult Sci
January 2023
French National Centre for Scientific Research , French Horse and Riding Institute, National Research Institute for Agriculture, Food and the Environment, INRAE, Tours University, Physiology of Reproduction and Behaviour, UMR85, 37380, Nouzilly, France. Electronic address:
Article Synopsis
- Chemerin, a hormone produced by fat and liver tissue, is also generated in the reproductive tract of hens, particularly in the magnum, and accumulates in egg whites, playing a crucial role in egg fertilization and embryo development.
- Research using pheasants shows that different breeds (F11 and F22) have varied reproductive characteristics and that higher amounts of chemerin in F11 are linked to better hatching rates, while lower chemerin levels in F22 correlate with higher rates of unfertilized eggs.
- The findings suggest that chemerin and its receptors are conserved across species and may serve as a potential marker for assessing egg fertility and embryo development.
Effects of tryptophan and probiotic supplementation on growth and behavior in quail.
Poult Sci
November 2020
UMR85 Physiologie de la Reproduction et des Comportements, INRAE, CNRS, IFCE, Université de Tours, Center Val de Loire, 37380 Nouzilly, France. Electronic address:
In laying hens, a diet supplemented with tryptophan (Trp) has been shown to affect their pecking behavior. However, unlike this positive effect, Trp is also involved in negative effects on behavior and stress through indolic pathways. Indole production can be reduced by probiotics (Pro), thus we hypothesized that Pro may prevent negative effects of Trp and increase beneficial effects on behavior in birds.
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