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

Authors

DOI:

https://doi.org/10.1590/cab20135197

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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Author Biographies

Jovanir Ines Muller Fernandes, Universidade Federal do Paraná

Departamento de Zootecnia

Área de produção e nutrição de aves

Anete Rorig, Universidade Federal do Parana

Mestranda do Programa de Pós-Graduação em Ciência Animal - Setor Palotina - UFPR

Camila de Souza Oro, Universidade Federal do Parana

Aluna do Curso de Graduação em Medicina Veterinária - Setor Palotina - UFPR

Daiane Horn, Universidade Federal do Parana

Aluna do Curso de Graduação em Medicina Veterinária - Setor Palotina - UFPR

Heloísa Laís Fialkowski Bordignon, Universidade Federal do Paraná

Aluna do Curso de Graduação em Medicina Veterinária - Setor Palotina - UFPR

Janaína Furlanetto de Mello, Universidade Estadual de Maringa

Mestranda do Programa de Pós Graduação em Zootecnia - Universidade Estadual de Maringa

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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.; DE MELLO, J. F. 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/cab20135197. Disponível em: https://revistas.ufg.br/vet/article/view/e-35197. Acesso em: 17 jul. 2024.

Issue

Vol. 20 (2019): Continuous publication

Section

ZOOTECNIA

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