Results 81 to 90 of about 47,553 (291)

Consumos e digestibilidades totais e parciais de matéria seca, matéria orgânica, proteína bruta e extrato etéreo em novilhos submetidos a três níveis de ingestão e duas metodologias de coleta de digestas abomasal e omasal Intake and total and partial digestibility of dry matter, organic matter, crude protein and ether extract of steers under three offer levels and two collection methodologies of abomasal and omasal digesta

Revista Brasileira de Zootecnia, 2004
Seis novilhos castrados, fistulados no rúmen e abomaso foram distribuídos em dois quadrados latinos 3x3 (três animais, três níveis de oferta - 1,5; 2,0 e 2,5% PV e três períodos) para comparar as técnicas de coleta de digestas abomasal e omasal, para ...
Maria Ignez Leão, Sebastião de Campos Valadares Filho, Luciana Navajas Rennó, Lúcio Carlos Gonçalves, Paulo Roberto Cecon, José Augusto Gomes Azevedo, Rilene Ferreira Diniz Valadares   +6 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Proteína degradável no rúmen na dieta de bovinos: digestibilidades total e parcial dos nutrientes e parâmetros ruminais Rumen degradable protein on bovine diet: total and partial nutrient digestibility and ruminal parameters

Revista Brasileira de Zootecnia, 2008
Quatro novilhos da raça Holandesa (450 kg) portadores de cânula ruminal e duodenal, recebendo dietas com níveis de proteína degradável no rúmen (PDR) de 50, 60, 65 e 70%, associadas a uma fonte de amido de alta degradabilidade ruminal (farinha de ...
Saul Ferreira Caldas Neto, Lucia Maria Zeoula, Ivanor Nunes do Prado, Antonio Ferriani Branco, Ricardo Kazama, Luiz Juliano Valério Geron, Emilyn Midori Maeda, Fernanda Fereli   +7 more
doaj   +1 more source

Nitrogen Metabolism of Beef Steers Fed Either Gamagrass or Orchardgrass Hay With or Without A Supplement

, 2004
This experiment evaluated rumen protein:energy synchronization in steers fed either gamagrass (Tripsacum dactyloides) or orchardgrass (Dactylis glomerata) hays with or without a soybean hull/corn supplement. A N balance trial was conducted to compare the
Magee, Kelly Jean
core  

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Liveweight loss and recovery in steers fasted for periods of twelve to seventy-two hours

, 1980
Liveweight changes were measured when 210 yearling Brahman crossbred steers (396kg mean initial liveweight) were held in yards and fasted (no feed and water) for 12, 24, 48 or 72 hours.
Wythes, J. R., Toleman, M. A., McLennan, S. R.   +2 more
core   +1 more source

Variations in liveweight between steers following fasting periods of six to eighteen hours and access to water [PDF]

, 1987
Liveweight changes were measured using 105 yearling Brahman crossbred steers (mean liveweight 336 kg) which were held in yards and fasted (no feed or water) for 6, 12 and 18 hours (6F,12F,18F respectively).
Wythes, J. R., Toleman, M. A., Tyler, R.
core   +1 more source

Desenvolvimento de bezerros de corte desmamados aos 80 ou 152 dias até os 15-16 meses de idade Performance until the age of 15-16 months of beef calves weaned at 80 or 152 days of age

Revista Brasileira de Zootecnia, 2011
Avaliou-se o desenvolvimento de bezerros de corte submetidos a duas idades de desmame: precoce, em média com 80 dias de idade; convencional, em média com 152 dias de idade. Foram utilizados 105 bezerros Braford, nascidos nos anos de 2004 e 2005.
Ricardo Zambarda Vaz, José Fernando Piva Lobato, Leonir Luiz Pascoal   +2 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source