Results 71 to 80 of about 4,671,172 (293)

Energy and protein levels in diets containing phytase for broilers from 22 to 42 days of age: performance and nutrient excretion

Revista Brasileira de Zootecnia, 2011
This study was conducted in order to evaluate the influence of different levels of metabolizable energy and crude protein in diets formulated according to the ideal protein concept with phytase supplementation on performance and nutrient excretion of ...
Adriano Kaneo Nagata, Paulo Borges Rodrigues, Renata Ribeiro Alvarenga, Márcio Gilberto Zangeronimo, Kênia Ferreira Rodrigues, Gustavo Freire Resende Lima   +5 more
doaj   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

Nutritional plans for boars

Revista Brasileira de Zootecnia, 2012
The objective of the present study was to evaluate nutritional plans for boars. Four hundred animals of 67 to 135 days of age and initial weight of 27.75±1.61 kg were distributed in a randomized block design with seven nutritional plans for boars (9.0-8 ...
Charles Kiefer, Juarez Lopes Donzele, Rita Flavia Miranda de Oliveira, Liliane Suguisawa, Jorge Murilo Suguisawa, Ana Carolina Wider Marques   +5 more
doaj   +1 more source

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Exploring Protein Sequence Space Using Computationally Directed Recombination [PDF]

, 2006
Evolution has provided us with many protein sequences. However, these sequences represent a very small fraction of the possible sequences. In the laboratory, scientists have explored areas of sequence space not represented by natural proteins both to ...
Meyer, Michelle Margaret
core   +1 more source

Exigência de lisina digestível para frangos de corte machos de 1 a 42 dias de idade Digestible lysine requirements for male broilers from 1 to 42 days old

Revista Brasileira de Zootecnia, 2008
Objetivou-se estimar as exigências nutricionais de lisina digestível de frangos de corte machos de 1 a 42 dias de idade. Utilizaram-se 1.950 pintos de corte Cobb (750 para a fase pré-inicial, 600 para a fase inicial e 600 para a fase de crescimento) com ...
Cláudia de Castro Goulart, Fernando Guilherme Perazzo Costa, Raul da Cunha Lima Neto, Janete Gouveia Souza, José Humberto Vilar da Silva, Patrícia Emília Naves Givisiez   +5 more
doaj   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

IDEAL-Cell, a High Temperature Innovative Dual mEmbrAne Fuel-Cell [PDF]

, 2009
IDEAL-Cell is a new concept of a high temperature fuel cell operating in the range 600-700°C. It is based on the junction between the anode part of a PCFC and the cathode part of a SOFC through a mixed H+ and O2- conducting porous ceramic membrane.
Stoynov, Z., A. Chesnaud, A. S. Thorel, D. Vladikova, Vladikova, D., BARBUCCI, ANTONIO, Presto, S., M. Viviani, Viviani, M., Chesnaud, A., Z. Stoynov, PICCARDO, PAOLO, S. Presto, Thorel, A.S, Ilhan, Zeynep, Piccardo, P, Z. Ilhan, Barbucci, A.   +17 more
core   +1 more source

Evaluating a Growth Model to Predict Amino Acid Requirements for Commercial Turkey Toms with and Without Feed Additives

Poultry
Estimating dietary requirements is resource-intensive and often excludes common commercial practices, such as the use of feed additives (FA). The objective of this study was to evaluate whether a factorial–mechanistic growth model-derived feeding program
Brendan O. Heinichen, Peter R. Ferket, James Clothier, Phoebe C. Flaskey, Dawn A. Koltes   +4 more
doaj   +1 more source

Determination of digestible isoleucine: lysine ratio in diets for laying hens aged 42-58 weeks

Revista Brasileira de Zootecnia, 2012
Two hundred and fifty-two Hy-Line W36 laying hens were allotted in a completely randomized design with 6 treatments, 7 replicates and 6 hens per experimental unit in order to determine the ideal ratio of isoleucine (Ile) in relation to lysine (Lys) to ...
Heloisa Helena de Carvalho Mello, Paulo Cezar Gomes, Tatiana Cristina da Rocha, Juarez Lopes Donzele, Rodrigo Lopes de Almeida, Allan Reis Troni, Bruno Reis de Carvalho, Gabriel da Silva Viana   +7 more
doaj   +1 more source