Data/hora: 13/06/2024 04:58:10

Biblioteca(s): | Embrapa Suínos e Aves.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 1
Data corrente: | 13/11/2020
Data da última atualização: | 13/11/2020
Autoria: | FÉLIX, D. O.; SILVA, A. S.; FIALHO, A. T. S.; OLIVEIRA, C. J. P; BRITO, C. O.; TAVERNARI, F. de C.; RIBEIRO JUNIOR, V.; ROSTAGNO, H. S.; ALBINO, L. F. T.
Afiliação: | UFV; UFS; UFS; UFS; CLAUDSON OLIVEIRA BRITO, UFS; FERNANDO DE CASTRO TAVERNARI, CNPSA; VALDIR RIBEIRO JUNIOR, UFS; HORÁCIO SANTIAGO ROSTAGNO, UFV; LUIZ FERNANDO TEIXEIRA ALBINO, UFV.
Título: | Fat-soluble vitamin supplementation levels in diets for laying hens from 28 to 44 weeks of age.
Ano de publicação: | 2020
Fonte/Imprenta: | Brazilian Journal of Poultry Science, v. 22, n. 3, p. 1-10, 2020.
DOI: | http://dx.doi.org/10.1590/1806-9061-2019-1239
Idioma: | Inglês
Conteúdo: | Abstratc: This study aimed to examine the impact of levels of dietary supplementation with fat-soluble vitamins on the production performance and egg quality of laying hens. Three hundred Hy-Line White W-36 laying hens were evaluated from 28 to 44 weeks of age. The birds were allotted to one of six treatments in a randomized block design with 10 replicates with five birds each. Performance and egg quality parameters were evaluated in four 28-day periods. A corn and soybean meal-based basal diet was formulated so as to meet the nutritional requirements of the animals, with the exception of fatsoluble vitamins. The treatments consisted of dietary supplementation with 0%, 33.3%, 66.7%, 100.0%, 133.3% or 166.7% of fat-soluble vitamins (100% supplementation consisted of 7500 IU, 2000 IU, 10 IU and 1.8 mg of vitamins A, D3, E and K per kilogram of diet, respectively). Eggshell weight, shell thickness, shell strength, feed intake, egg weight, feed conversion per egg mass and feed conversion per dozen eggs showed a quadratic response (p&#8804;0.05) to the treatments, whereas egg mass responded linearly. Optimal results were obtained at an average fat-soluble vitamin supplementation level of 109%, which corresponds to 8175 IU of vitamin A, 2180 IU of vitamin D3, 10.9 IU of vitamin E and 1.96 mg of vitamin K per kilogram of diet.
Palavras-Chave: | Casca do ovo; Peso do ovo; Poedeira; Suplementação de vitaminas; White eggs.
Thesagro: | Dieta; Performance.
Thesaurus Nal: | Egg weight.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/217768/1/final9539.pdf
Registro original: | Embrapa Suínos e Aves (CNPSA)
Exemplares: | CNPSA - (21984-1) - UPC - AP - DD -  -  -  - DIS