Efeito do nível de dióxido de carbono na incubadora sobre o desenvolvimento embrionário e parâmetros de eclosão em frangos de corte
Palavras-chave:
embriãoResumo
Oxigênio (O2) e dióxido de carbono (CO2) são gases vitais para o embrião durante o processo de incubação, seu nível é imprescindível no momento da bicada, a fim de avaliar o efeito do nível de dióxido de carbono da In da incubadora sobre o embrionário. o desenvolvimento, os parâmetros de incubação e o subsequente crescimento do frango, a perda de umidade, eclodibilidade, peso do frango, tamanho do frango, glicose no sangue, hematócrito e proteínas plasmáticas foram medidos. Foram selecionados 600 ovos de reprodutores comerciais Cobb 500 de 41 semanas, com peso de 65 e 70 g, distribuídos em duas incubadoras. Uma máquina foi mantida a 4000 ppm e a outra a 3000 ppm de CO2. Foi utilizado um planejamento fatorial 2 x 2. A eclodibilidade foi superior a 3.000 ppm de CO2 e o peso do ovo foi de 65 g; o frango mais pesado ficou com 70 g de ovo, quanto maior o CO2 ppm, menor a perda de umidade, menor o CO2 ppm, um frango maior foi observado, os níveis de glicose não foram afetados, mas os valores de proteína plasmática foram inferiores a 3000 ppm de CO2. Os parâmetros de incubação são melhorados diminuindo o ppm de CO2 durante o processo de incubação.
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