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Type: Artigo
Title: Thermal Stimulation Of Ross (r)-lineage Embryos On A Commercial Scale
Author: Flores
Fernanda; Naeaes
Irenilza de Alencar; Garcia
Rodrigo Garofallo; de Souza
Lenise Inacio
Abstract: Artificial incubation is an essential process to obtain healthy birds with good performance; nevertheless, it requires sustained improvement. During this process, incubation temperature is considered a critical factor, which has been studied. The objective of this study was to evaluate the development of Ross (R) embryos after hot and cold thermal stimulation. To this end, temperatures 1.39 degrees C above the standard temperature and a temperature fixed at 36.00 degrees C that varied 1.00 to 0.30 degrees C below the standard temperature were applied during the final embryonic development period (days 14 to 18) for three hours, on a commercial scale. Results revealed that hot and cold thermal stimulations did not cause embryo mortality; the hatching and chick quality index were maintained and even increased. Therefore, we believe that thermal stimulation has the potential to improve hatchery index, and thus grange performance; however, adjustments are needed, varying according to each individual hatchery, before it can used as a protocol.
Subject: Commercial Incubation
Embryonic Development
Thermal Conditioning
Editor: Univ Federal Santa Maria
Santa Maria
Rights: aberto
Identifier DOI: 10.1590/0103-8478cr20151310
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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