Welfare indicators for laying Japanese quails caged at different densities

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dc.contributor.authorSOARES, DANIELA F.
dc.contributor.authorPIZZOLANTE, CARLA C.
dc.contributor.authorDuarte, Keila Maria Roncato
dc.contributor.authorMORAES, JOSÉ EVANDRO DE
dc.contributor.authorBUDIÑO, FÁBIO E.L.
dc.contributor.authorSOARES, WEBER V.B.
dc.contributor.authorKAKIMOTO, SÉRGIO K.
dc.date.accessioned2024-05-20T13:24:58Z
dc.date.available2024-05-20T13:24:58Z
dc.date.issued2018
dc.description.abstractAbstract In the way to reduce costs in the poultry production, high densities of birds are adopted in the production systems. Such high densities can lead to an inappropriate environment, compromising the welfare and decreasing the animal performance. In this work we aimed to evaluate the effects of different densities on the productive yield, egg quality and immunological aspects of Japanese quails. It was used 816 Japanese quails, during egg production phase, in a random design, with four treatments (121.43 cm2/bird; 106.25 cm2/bird; 94.44 cm2/bird and 85.00 cm2/bird) with six repetitions each. Results indicate density did not interfere on egg quality and all treatments can be considered excellent, once the Haugh Unit was 88.03. Therefore, higher densities decline the yield, decreasing the eggs weight (10.35 g), the laying percentage (88%), egg mass (9.16 g) and the week average feed consumption (157.35 g). IgY values were higher at smaller cage density, suggesting birds in this condition presented better immunological condition, related to welfare and stress factors, all linked to immunoglobulins IgY.
dc.identifier.doi10.1590/0001-3765201820180276
dc.identifier.issn0001-3765
dc.identifier.otherS0001-37652018000703791-scl
dc.identifier.urihttps://repositorio-aptaregional.agricultura.sp.gov.br/handle/123456789/2181
dc.relation.ispartofAnais da Academia Brasileira de Ciências
dc.subjectimmunity
dc.subjectIgY
dc.subjectegg quality
dc.subjectHaugh Unit
dc.titleWelfare indicators for laying Japanese quails caged at different densities
dc.typeArtigos
oaire.citation.endPage3797
oaire.citation.issue4
oaire.citation.startPage3791
oaire.citation.volume90

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