investigation of the hatch evolution is also very important to evaluate
uniformity of the batch. In practice, the moment of hatch is examined
by taking several hatchery baskets out of the incubator and checking
the number of chicks hatched. However, this procedure may require
the door of the incubator to be opened and is carried out several times
during the process which may significantly affect the incubation
conditions and interrupt the hatching process (Tong et al., 2015).
Therefore, there is an increased interest in an alternative and less invasive
method for the detection of egg fertility and monitoring of
embryo mortality and hatch. This paper attempts to show the benefit
of using eggshell temperature sensors during the whole incubation to
quantify thermal profile differences among infertile eggs, eggs containing
dead embryos at different developmental stages (early, middle
and late) and eggs that succeed in hatching