Influência dos níveis de co2 e do tipo de incubadora sobre o desempenho zootécnico e morfometria cardíaca de frangos de corte

Jovanir Ines Muller Fernandes; Anete Rorig; Camila de Souza Oro; Daiane Horn; Heloísa Laís Fialkowski Bordignon; Janaína Furlanetto de Mello

doi:10.1590/1809-6891v20e-35197

INFLUENCE OF CO2 LEVELS AND TYPE OF INCUBATOR ON THE PERFORMANCE OF BROILERS

Authors

Jovanir Ines Muller Fernandes Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brasil https://orcid.org/0000-0001-8722-7424
Anete Rorig Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brasil https://orcid.org/0000-0002-2753-4956
Camila de Souza Oro Universidade Federal do Paraná (UFPR), Palotina, Paraná, Brasil https://orcid.org/0000-0003-4355-9288
Daiane Horn Universidade Federal do Paraná (UFPR), Palotina, Paraná, Brasil https://orcid.org/0000-0002-7012-2893
Heloísa Laís Fialkowski Bordignon Universidade Federal do Paraná (UFPR), Palotina, Paraná, Brasil https://orcid.org/0000-0001-7700-7073
Janaína Furlanetto de Mello Universidade Estadual de Maringá (UEM), Maringá, Paraná, Brasil https://orcid.org/0000-0001-8234-6483

DOI:

https://doi.org/10.1590/1809-6891v20e-35197

Keywords:

Poultry production

Abstract

The aim of this work was to assess single and multiple-stage incubators and different CO₂ levels over performance, number and diameter of muscle fibers, cardiac morphometry and carcass yield of broilers. Two thousand five hundred and twenty fertile eggs were randomly allocated and distributed into four different CO₂ levels (4,000, 6,000, 8,000 and 10,000ppm) during the first ten days of incubation. After hatchling, 1,050 male chicks were placed into an experimental barn following the design used in the hatchery. Induced hypercapnia during the first ten days affected weight gain and feed conversion ratio of one-week-old chicks. However, these aspects did not last until the end of the rearing period. There was no effect of either hatchers or hypercapnia on number and diameter of muscle fibers and cardiac morphometry. Higher thigh yield was noted in the birds from single-stage incubators up to 6,000ppm of CO₂. This fact is explained through higher vascularization caused by premature hypercapnia.
Keywords: embryo, hypercapnia, hypoxia, performance.

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Published

2019-01-18

How to Cite

FERNANDES, J. I. M.; RORIG, A.; ORO, C. de S.; HORN, D.; BORDIGNON, H. L. F.; MELLO, J. F. de. INFLUENCE OF CO2 LEVELS AND TYPE OF INCUBATOR ON THE PERFORMANCE OF BROILERS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 20, p. 1–11, 2019. DOI: 10.1590/1809-6891v20e-35197. Disponível em: https://revistas.ufg.br/vet/article/view/e-35197. Acesso em: 22 dec. 2024.

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Issue

Vol. 20 (2019): Continuous publication

Section

ZOOTECNIA

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