Effect of Storing Hatching Eggs in Air Chamber, Upside Down, Over Hatchability, According to Breeder’s Age, for Three-Day Rotation

Abstract

<p>Currently the conformation lines have eased the pressure on egg production by grandmothers and heavy breeding chicken and focused on broiler performance instead, showing better food conversions in both genders. This context shows us that, in Colombia, the most successful companies, which represent from 5% to 25% of the country’s productiveness, could surpass past results with some effort. It is thus necessary to analyze all the opportunities for management improvement to help maximize the zootechnical performance of the poultry, so as to obtain the highest amount of chicks per bird as possible. An important management aspect is hatching egg storage in air chambers placed upside down, with the purpose of achieving a better hatchability, which can be supported by the centralized position of the yolk and the embryo in the equatorial region of the egg. The purpose of this evaluation is to analyze the behavior of inverted hatching eggs in breeders of different ages, with few (three) and several days of storage, in order to determine the usefulness of heavy breeding chicken in the processes in Colombia. Different rotation days for breeders of different ages will be evaluated in future studies, in order to observe the relationship between days of storage and breeder’s age, and between storage and air chamber placed upside down</p>