Gravidade específica de ovos de matrizes pesadas com diferentes idades no rendimento de incubação e no peso dos pintos pós-eclosão

Silva, Mônica Calixto da; Noleto, Raiana Almeida; Vaz, Roberta Gomes Marçal Vieira; Costa, Eduardo Santos; Sousa, Luciano Fernandes; Rodrigues, Kênia Ferreira; Sousa, Joana Patrícia Lira de; Cruz, Lília Alves; Fonseca, Flávia Luzia Rodrigues

doi:10.1590/s1519-99402016000200009

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…According to ULMER-FRANCO et al (2010), infertility increases as the breeder flock ages. In a study by SILVA et al (2016), eggs from younger breeders were found to exhibit higher rates of fertility than eggs from older hens. TANURE (2008) also found that eggs from 57-week-old breeders exhibited lower fertility than eggs from 32week-old breeders.…”

Section: Resultsmentioning

confidence: 98%

Incubation Yield as a Function of Broiler Breeder Age

Silva

Pereira

Salgado

et al. 2017

Revista Brasileira De Engenharia De Biossistemas

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The factors involved in poultry egg incubation include breeder hen age, which may influence both the external and internal quality of eggs. In this context, this study sought to determine incubation yield among eggs from breeder hens at three ages. A total of 1,728 eggs were obtained from Cobb broiler breeders at three ages (26 weeks, 32 weeks, and 53 weeks) and incubated. At the end of the incubation process, eclosion, hatchability, the percentage of infertile eggs, the time of embryo mortality, and chick weight were all analyzed according to breeder hen age. Analysis of variance was applied to the results, and egg fertility was found to be associated with breeder age, since lower rates of eclosion were found in eggs from younger broiler breeders. Chick weight was also found to be influenced by breeder age, since eggs from older broiler breeders hatched into heavier chicks. However, neither mortality nor hatchability were found to be affected by breeder hen age.Keywords: eclosion, hatchability, fertile eggs, mortality, chick weight RENDIMENTO DE INCUBAÇÃO EM FUNÇÃO DA IDADE DA MATRIZ RESUMODentre os fatores relacionados para o sucesso da incubação está a idade da matriz, pois este pode influenciar na qualidade interna e externa do ovo. Nesse contexto, o trabalho teve como objetivo verificar o rendimento da incubação para ovos de três idades de matrizes em produção. Incubou-se um total de 1.728 ovos divididos em três idades de matrizes da linhagem Cobb: 26, 32 e 53 semanas. Ao final do processo de incubação, as variáveis analisadas foram: eclosão, eclodibilidade, porcentagem de inférteis, época da mortalidade e peso dos pintinhos nas três idades de matrizes. Os resultados foram submetidos a análise de variância e observou-se que a fertilidade é afetada pela idade da matriz, levando a menor eclosão para os ovos de matrizes mais jovens, e influencia também o peso dos pintinhos, pois os ovos das matrizes mais velhas proporcionaram pintinhos mais pesados. Entretanto, mortalidade e eclodibilidade não são afetadas pela idade da matriz.Palavras-chave: eclosão, eclodibilidade, ovos férteis, mortalidade, peso dos pintinhos * danilo@tupa.unesp.br

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Section: Resultsmentioning

confidence: 98%

Incubation Yield as a Function of Broiler Breeder Age

Silva

Pereira

Salgado

et al. 2017

Revista Brasileira De Engenharia De Biossistemas

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Evaluation of the Relationship Between the Breeder’s Age, Breed and the Incubator Types on Quality and Animal Welfare in the Hatchery

Oro

Souza

Rodrigues

et al. 2019

Braz. J. Poult. Sci.

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About 33.3% of chicken life is conditioned by the result of embryonic development. Therefore, understanding and improving the early phase of the broiler's life is critical to guarantee their well-being. Thus, the objective of this research was to evaluate the relationship between the breeder's age, breed and the incubator types on quality and animal welfare in the hatchery. The experimental design was completely randomized in a 2 x 2 x 3 factorial arrangement (incubator, breed and age), with 12 treatments and 6 replicates each. The eggs derived of Cobb 500 and Ross's breeders at the beginning of the laying period, middle age and at the end of the laying period. It is concluded that the size of the eggs is related to the breeder's age and breed, which influences directly the number of bled eggs. In addition, well-being in the hatchery can be affected by decreased hatching and contamination that is higher in older breeders. Cobb eggs also need more attention because they are larger, therefore, they have a higher risk of breakage and they are more sensitive to the low concentration of CO 2 at the hatcher.

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Gravidade específica de ovos de matrizes pesadas com diferentes idades no rendimento de incubação e no peso dos pintos pós-eclosão

Cited by 2 publications

References 9 publications

Incubation Yield as a Function of Broiler Breeder Age

Incubation Yield as a Function of Broiler Breeder Age

Evaluation of the Relationship Between the Breeder’s Age, Breed and the Incubator Types on Quality and Animal Welfare in the Hatchery

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