Data/hora: 10/06/2024 17:14:46

Provedor de dados: | 2
País: | Brazil

Título:

Calcium in pre-laying and laying rations on the performance and quality of laying hens’ eggshell - doi: 10.4025/actascianimsci.v35i2.16555

Calcium in pre-laying and laying rations on the performance and quality of laying hens’ eggshell - doi: 10.4025/actascianimsci.v35i2.16555

Autores: | Rodrigues, Eliana Aparecida; Instituto Federal do Triangulo Mineiro; Oliveira, Maria Cristina de; Universidade de Rio Verde; Cancherini, Luciana Cardoso; Universidade do Estado de Mato Grosso; Duarte, Karina Ferreira; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Santana, Luis Fernando; Instituto Federal do Triangulo Mineiro; Junqueira, Otto Mack; Universidade Estadual Paulista “Júlio de Mesquita Filho.
Data: | 2012-12-03
Ano: | 2012
Palavras-chave: | 5.04.00.00-2 e 5.04.03.00-1 egg mass; Egg production; Eggshell quality; Feed intake; Pullets egg mass; Egg production; Eggshell quality; Feed intake; Pullets.
Resumo: | The experiment evaluated the effect of different calcium (Ca) levels in pre-laying and laying diets on the performance and egg quality of laying hens. Two hundred and fifty-six 16-week-old Brown Hisex pullets were housed in a conventional shed. The experiment had a completely randomized design with 4 x 2 factorial arrangement (four calcium levels - 0.8, 1.3, 1.8 and 2.3% in pre-laying phase; two calcium levels - 2.5 and 3.5% in laying phase), totaling eight treatments with four repetitions of eight birds per experimental unit. The experiment started with 16-week-old hens receiving pre-laying diets provided until they were 18 weeks old. At this period, the laying diets started. Four 28-day cycles were evaluated for the following variables: production and egg weight, feed intake, feed conversion, mass of eggs and eggshell quality. Results show that a good performance was obtained with 0.8% calcium level in the pre-laying phase, whereas in the laying phase the 3.5% calcium level provided greater weight egg and better eggshell quality.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16555

10.4025/actascianimsci.v35i2.16555

Editor: | Editora da Universidade Estadual de Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16555/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16555/pdf_1

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Animal Sciences; v. 35, n. 2 (2013); 153-157

Acta Scientiarum. Animal Sciences; v. 35, n. 2 (2013); 153-157

1807-8672

1806-2636

Fonte:

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DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Animal Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).