These breeds are known as twin-objective (chicken and you may eggs) breeds, regardless if differences in mature body proportions can be found (Desk 1)
The purpose of so it job is to study the outcome away from breed and years into eggs development additionally the eggs external and you may internal high quality during the four Italian twin-mission breeds , at the beginning and lots of weeks after than simply earliest days installing activity you to happened, respectively, at the end of june/beginning of autumn and in winter, lower than changeable environmental standards.