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. 2021 Jan;100(1):94-102.
doi: 10.1016/j.psj.2020.09.028. Epub 2020 Sep 23.

Results of hatching and rearing broiler chickens in different incubation systems

Mariana A Mesquita  1 , Itallo C S Araújo  2 , Marcos B Café  1 , Emmanuel Arnhold  1 , Alessandra G Mascarenhas  1 , Fabyola B Carvalho  1 , José H Stringhini  1 , Nadja S M Leandro  1 , Elisabeth Gonzales  1
Affiliations

Results of hatching and rearing broiler chickens in different incubation systems

Mariana A Mesquita et al. Poult Sci. 2021 Jan.

Abstract

Hatchery efficiency is based on hatchability and the number of salable chicks. The hatchery sector has been seeking new alternatives to optimize production rates, including the use of different systems (multistage [MS] or single-stage [SS] machines) to improve incubation conditions. The present study aimed to compare results for hatchability, chick quality, and broiler performance of chicks from 2 incubator systems-MS and SS. The experimental design for hatchability, hatch window, egg weight loss, and chick performance variables was completely randomized with 2 treatments (MS and SS). Performance variables were analyzed as a 2 x 2 factorial arrangement (incubator type x chick sex). Egg weight loss between incubation and transfer was higher for eggs incubated in MS (P < 0.05). Hatchability was higher for eggs incubated in SS (P < 0.05), and chicks in SS had a longer hatch window (P < 0.05). Embryo diagnosis revealed higher final mortality for embryos incubated in MS (P < 0.05), as well as higher percentages of alive and dead pipped and cracked eggs (P < 0.05). Physical quality was better for chicks from SS (P < 0.05). There was no interaction between the studied factors for performance results (P > 0.05). Incubator type did not affect broiler performance for any of the studied ages (P > 0.05), whereas male broilers had better performance than females (P < 0.05). The SS incubation system proved better than the MS system at meeting embryo requirements during embryo development, with better hatching rates and chick quality, although performance variables were not influenced by incubation type.

Keywords: hatchability; multistage; newborn chick quality; setters; single-stage.

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Figures

Figure 1
Figure 1
Dispersion of hatching chicks incubated in multistage (MS) and single-stage (SS) machines.
See this image and copyright information in PMC

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