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All the news
Calf feeding. © INRA, BOSSENNEC Jean-Marie

Press release

07 May 2019

Tailor-made interactions between the uterus and embryo

One of the crucial stages of gestation is implantation of the embryo in the uterus, in contact with a tissue called the endometrium. However, the mechanisms that enable this implantation remain largely unclear. A Franco-American collaboration co-led by INRA research scientists has revealed that intense and fine-tuned crosstalk is established between the embryo and endometrium, allowing them to adapt to each other. Working in cattle, the scientists analysed the expression of genes in the embryo and endometrium at the start of gestation. They showed that many of the biological processes at work in the two tissues are closely correlated.

Foals in progressive habituation to separation, using a fence line.. © Laeticia Marnay, Laeticia Marnay IFCE

News

14 Mar 2019

Progressive habituation to separation alleviates the negative effects of weaning in the mother and foal

The physiological and behavioral consequences of weaning can be reduced by a progressive habituation to separation between mother and foal.

Blue-and-yellow macaw © Arielle Beraud

Press release

22 Aug 2018

Macaws that blush: facial expressions demonstrated for the first time in birds

In order to carry out studies of facial behavioural indicators, INRA scientists teamed up with the Beauval Zoo to look at blue-and-yellow macaws (Ara ararauna), who have the distinctive characteristic of having a portion of their cheeks devoid of feathers. During their experiment, the scientists were able to describe for the first time facial expressions in the birds within a context of positive valence: the macaws blushed and ruffled their crown feathers.

Vache et son veau quelques heures après le vélage (Ferme expérimentale, Grignon).. © INRA, CAIN Anne-Hélène

News

13 Apr 2018

Preattachment embryos of domestic animals: insights into development and paracrine secretions

A review summarizes the signals exchanged between conceptus and endometrium tissues that govern the fertility of livestock mammals.

Honeybee's foraging activity. © INRA, Yves Le Conte

News

23 Feb 2018

Stress decreases pollen foraging performance in honeybees

Stressed honeybees have lower pollen foraging performance. The resulting deficit in pollen could have consequences on the colony's nutritional balance and development.