The Hatch Window

Published on: 07/03/2012
Author/s : Dr. Donna Hill (HatchTech Group)

The hatch window is considered a management tool in modern commercial hatcheries. This paper will discuss the definition of the hatch window and why it is considered important to manage. The embryo and incubation equipment factors that influence the hatch window will be discussed. The impact of methods to shorten the hatch window will be discussed. This paper will also discuss the impact of incuba...

remove_red_eye 2585 forum 6 bar_chart Statistics share print
Share :
July 3, 2012
dear dr donna,
thanks for the informative article i wish to know that eggs set after 10 days storage fluctuation of hatch is seen.what steps should be taken,
Dr Mahendra Chaudhari Dr Mahendra Chaudhari
M.V.Sc. Animal Nutrition Masters Degree Veterinary
July 3, 2012
Dear Dr Donna Hill,
Thanks for sharing practical ideas. It is true that along with quantity , quality play vital role and important role.Only having good hatch % is not important but quality is equally important role in growth and profitability of broiler farming. One can do little in hatcher by opting dry down for few hours to improve hatch window. One can optimise better first week weight by having good chick quality. Once we are succesful in achieving same , one can get good final weight with better FCR.
Dr Mahendra Chaudhari
Khadkeshwara Hatchery Ltd India
Golden Chicks Ltd Tanzania

Hassan-sadeghi Hassan-sadeghi
Veterinary Doctor
July 4, 2012
Dear donna
I enjoyed your article,But it still has many points of research.

kind regards:
Animal Sc.Res.Ctr.
Debashis Ray Debashis Ray
Mechanical Engineer
July 4, 2012

Dear Dr Hill,
I am neither a poultry specialist nor a veterinarian, just an intereseted onlooker with a suggestion. Sometime in the early '70s ornithologists studying wild ducks hatching eggs under controlled conditions, fitted microphones connected to recorders in the nest box. They found that about four days before hatching date, the mother duck started calling to her still unborn ducklings. A microphone placed below the eggs also picked up response calls from the ducklings within the eggs. The frequency of the mother birds' calls increased as the hatching date approached, with matching increase in response calls. Finally all ducklings hatched within hours of one another.
The scientists conducting the test concluded from this and other data, that the calling helped the chicks to hatch at the same time (essential for survival in the wild) and to imprint on their mother's call before birth. The full report was published in the Scientific American of that period.
Perhaps something similar happens during incubation in the domestic hen, though i have not come across a similar study report on them. Being ground nesting birds with precocial chicks, it is equally important for chickens to be hatch within a short time of one another. The calls of a mother hen then may be played back to chicks in an incubator to signal simultaneous hatching.
With best wishes,
Debashis Ray,

July 7, 2012
Dear Dr. Hill,
I have enjoyed the publication and will try and apply some of your suggestions in my hatchery.


Derick Musuka
Lusaka Hatchery
Hybrid Poultry (Z) Ltd
Leo Antony Leo Antony
Consultant in Poultry management and training
July 20, 2012

I feel this is a very informative article that stresses facts which cannot be found in text books, but are known only to a few with hands on experience. As stressed by the author, the most important factor in a hatch is to get the chicks to start eating and developing their digestive systems in the optimum time possible after they are ready to start and this is where the concept of the hatch window plays such a crucial role. Dr.Mahendra Choudri rightly underlines this when he he speaks about the first week weights which are so very detrimental in getting the final weights and F.C.R. Few hatchery men are actually aware of these concepts and. therefore need to concentrate more on this area. Thank you, Dr.Donna Hill.

Engormix reserves the right to delete and/or modify comments. See more details
Post a comment
Create new discussion :
If this discussion does not cover topics of interest or raises new questions, you can create another discussion.
Consult a professional in private:
If you have a specific problem you can perform a consultation privately to a professional in our community.
Fred Hoerr
Fred Hoerr
DVM, PhD, Diplomate ACVP, ACPV
  Nashville, Tennessee, United States
Copyright © 1999-2020 Engormix - All Rights Reserved