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Effects of different egg turning frequencies on incubation efficiency parameters

This study aimed to evaluate the effects of different egg turning frequencies on incubation efficiency parameters. Nine hundred sixty brown fertile eggs, with an average weight of 52.20 ± 0.85 g, from 38-week-old CJD (Carijó Pesadão) breeder hens were randomly distributed among 4 treatments before i...

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Main Authors:	Oliveira, Gabriel da Silva, Santos, Vinícius Machado dos, Rodrigues, Jullyana Carvalho, Nascimento, Sheila Tavares
Format:	Artigo
Language:	Inglês
Published:	Elsevier Inc. on behalf of Poultry Science Association Inc. 2020
Subjects:	Frango de corte Frango de corte - embrião - mortalidade Ovos - incubação
Online Access:	https://repositorio.unb.br/handle/10482/39659 https://doi.org/10.1016/j.psj.2020.05.045
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spelling	ir-10482-396592020-11-26T14:40:24Z Effects of different egg turning frequencies on incubation efficiency parameters Oliveira, Gabriel da Silva Santos, Vinícius Machado dos Rodrigues, Jullyana Carvalho Nascimento, Sheila Tavares Frango de corte Frango de corte - embrião - mortalidade Ovos - incubação This study aimed to evaluate the effects of different egg turning frequencies on incubation efficiency parameters. Nine hundred sixty brown fertile eggs, with an average weight of 52.20 ± 0.85 g, from 38-week-old CJD (Carijó Pesadão) breeder hens were randomly distributed among 4 treatments before incubation. Each treatment corresponded to a turning frequency, being 24 (control), 12, 6, or 3 times per day, at an angle of 45°, until day 18 of incubation. The experimental design was a randomized complete block design with 4 treatments. Analysis of the incubation parameters was based on 6 replications per treatment. The eggs that were turned 12, 6, and 3 times per day exhibited a decrease in hatchability of the fertile eggs of 6.61, 15.51, and 19.70%, respectively, when compared with the control group (91.84 ± 2.73%). With a decrease in turning frequency, there was a gradual increase in early (2.84 ± 1.89 to 14.31 ± 1.82%) and late (3.57 ± 1.39 to 8.05 ± 1.24%) mortality rates. An egg turning frequency of 24 times per day during incubation provided high hatchability rates. In contrast, the turning frequencies of 12, 6, and 3 times per day showed significant losses in hatchability. 2020-11-26T14:40:23Z 2020-11-26T14:40:23Z 2020-09 Artigo OLIVEIRA, Gabriel da S. et al. Effects of different egg turning frequencies on incubation efficiency parameters. Poultry Science, v. 99, n. 9, p. 4417-4420, set. 2020. DOI: https://doi.org/10.1016/j.psj.2020.05.045. Disponível em: https://www.sciencedirect.com/science/article/pii/S0032579120303576?via%3Dihub. Acesso em: 26 nov. 2020. https://repositorio.unb.br/handle/10482/39659 https://doi.org/10.1016/j.psj.2020.05.045 Inglês Acesso Aberto This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). application/pdf Elsevier Inc. on behalf of Poultry Science Association Inc.
institution	REPOSITORIO UNB
collection	REPOSITORIO UNB
language	Inglês
topic	Frango de corte Frango de corte - embrião - mortalidade Ovos - incubação
spellingShingle	Frango de corte Frango de corte - embrião - mortalidade Ovos - incubação Oliveira, Gabriel da Silva Santos, Vinícius Machado dos Rodrigues, Jullyana Carvalho Nascimento, Sheila Tavares Effects of different egg turning frequencies on incubation efficiency parameters
description	This study aimed to evaluate the effects of different egg turning frequencies on incubation efficiency parameters. Nine hundred sixty brown fertile eggs, with an average weight of 52.20 ± 0.85 g, from 38-week-old CJD (Carijó Pesadão) breeder hens were randomly distributed among 4 treatments before incubation. Each treatment corresponded to a turning frequency, being 24 (control), 12, 6, or 3 times per day, at an angle of 45°, until day 18 of incubation. The experimental design was a randomized complete block design with 4 treatments. Analysis of the incubation parameters was based on 6 replications per treatment. The eggs that were turned 12, 6, and 3 times per day exhibited a decrease in hatchability of the fertile eggs of 6.61, 15.51, and 19.70%, respectively, when compared with the control group (91.84 ± 2.73%). With a decrease in turning frequency, there was a gradual increase in early (2.84 ± 1.89 to 14.31 ± 1.82%) and late (3.57 ± 1.39 to 8.05 ± 1.24%) mortality rates. An egg turning frequency of 24 times per day during incubation provided high hatchability rates. In contrast, the turning frequencies of 12, 6, and 3 times per day showed significant losses in hatchability.
format	Artigo
author	Oliveira, Gabriel da Silva Santos, Vinícius Machado dos Rodrigues, Jullyana Carvalho Nascimento, Sheila Tavares
author_sort	Oliveira, Gabriel da Silva
title	Effects of different egg turning frequencies on incubation efficiency parameters
title_short	Effects of different egg turning frequencies on incubation efficiency parameters
title_full	Effects of different egg turning frequencies on incubation efficiency parameters
title_fullStr	Effects of different egg turning frequencies on incubation efficiency parameters
title_full_unstemmed	Effects of different egg turning frequencies on incubation efficiency parameters
title_sort	effects of different egg turning frequencies on incubation efficiency parameters
publisher	Elsevier Inc. on behalf of Poultry Science Association Inc.
publishDate	2020
url	https://repositorio.unb.br/handle/10482/39659 https://doi.org/10.1016/j.psj.2020.05.045
_version_	1684523570422611968
score	13.657419

Effects of different egg turning frequencies on incubation efficiency parameters

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