Título:	Establishment of chicken muscle and adipogenic cell cultures for cultivated meat production.
Autoria:	HAACH, V. SILVEIRA, K. R. D. PEIXOTO, M. de A. SÁ, A. P. P. e GRESSLER, V. FEDDERN, V. IBELLI, A. M. G. SILVA, L. P. da BASTOS, A. P. A.
Afiliação:	VANESSA HAACH VANESSA GRESSLER, CNPSA VIVIAN FEDDERN, CPACT ADRIANA MERCIA GUARATINI IBELLI, CPPSE LUCIANO PAULINO DA SILVA, CENARGEN ANA PAULA ALMEIDA BASTOS, CNPSA.
Ano de publicação:	2025
Referência:	Frontiers in Nutrition, v. 12, n. 1648935, 2025.
Conteúdo:	There is a discrepancy regarding the nutritional requirements of laying hens, making it difficult to prepare and establish adequate nutritional programs. The objective of this study was to compare two tables of nutritional requirements for laying hens and two sources of limestone on performance, egg quality, and digestibility of calcium and phosphorus. Ninety-six laying hens of the Hy-Line W36 lineage were used in five production cycles of 21 days each, randomly assigned in a 2x2 factorial design with four treatments and eight replications. Hens fed with limestone A showed higher production in the 2nd and 5th cycles. Eggshell breaking strength was greater in laying hens that received the diet suggested by the Hy-Line Guidelines between 33 and 35 weeks, regardless of the limestone type. The Haugh unit increased in eggs from the third cycle of the Hy-Line/B group compared to those fed with limestone A. The percentage of calcium in the excreta was higher in hens that received limestone A. Laying hens fed according to the lineage manual excreted less phosphorus, even though they ingested higher daily amounts. It is concluded that both nutritional programs and limestone sources promoted good productive performance and internal and external egg quality.
Thesagro:	Biomassa
NAL Thesaurus:	Adipogenesis Biomass
Palavras-chave:	Cultured meat Chicken cells Myogenesis Carne cultivada Células de frango Miogênese Adipogênese
Digital Object Identifier:	10.3389/fnut.2025.1648935
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPSA)