Results 71 to 80 of about 59,014,347 (201)

Intestinal mucosa structure of broiler chickens infected experimentally with Eimeria tenella and treated with essential oil of oregano Morfometria intestinal de frangos de corte infectados experimentalmente com Eimeria tenella e tratados com óleo essencial de orégano

open access: yesCiência Rural, 2009
In the first trial a total of 250 day-old male chicks were distributed into five treatments and given the following diets: a diet with growth promoter; a diet without added growth promoter; a diet added with avilamycin only; diet supplemented with 0.5g ...
Maria Aparecida da Silva   +7 more
doaj  

Expecting the Next Coup? The Unchallenged Brazilian Military's Bargaining Power

open access: yesBulletin of Latin American Research, Volume 45, Issue 1, January 2026.
The civil‐military relations in Brazil have faced criticism due to weak political institutions and significant military autonomy, resulting in a regression of democratisation. This article posits that the shortcomings in Brazilian civil‐military relations have historical roots, with military prerogatives established in the early twentieth century and ...
Érico Esteves Duarte
wiley   +1 more source

Índices produtivos e rendimento de carcaça de frangos de corte alimentados com dietas contendo níveis de extrato etanólico de própolis ou promotores de crescimento convencionais Performance of broiler chickens fed with diets containing levels of propolis etanolic extract or conventional growth promoters

open access: yesCiência Rural, 2007
O objetivo deste estudo foi avaliar a adição de níveis de extrato etanólico de própolis ou promotores de crescimento convencionais nas dietas de frangos de corte, de 1 a 42 dias de idade.
Silvana da Silva Franco   +6 more
doaj   +1 more source

Trait coordination reveals the fast–slow plant economics spectrum along the vertical canopy profile in central Amazonian forests

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3596-3610, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding how environmental drivers affect tree functioning is essential to improve predictions of tropical forests' response to climate change. While functional traits directly influence tree performance, our understanding of how canopy environments shape their ...
Leonardo G. Ziccardi   +13 more
wiley   +1 more source

USO DE PROMOTORES DE CRESCIMENTO EM FRANGOS DE CORTE

open access: yes
Este estudo investiga o uso de antimicrobianos no desempenho dos frangos de corte, diante da busca por maior eficiência na produção de carne de frango e pela melhoria da qualidade. Embora os antimicrobianos sejam amplamente utilizados na avicultura comercial devido aos seus efeitos comprovados na produtividade e saúde dos animais, observa-se uma ...
Camila Daniely Gomes Durães de Sá   +4 more
openaire   +1 more source

Análise da textura de peitos de frangos alimentados com ração contendo ácidos orgânicos ou antibiótico

open access: yesBiotemas, 2011
Este trabalho teve como objetivo analisar a textura de músculos peitorais de frangos de 42 dias submetidos a três tratamentos com a ração (grupo controle, sem aditivos; grupo com adição de uma mistura de ácidos orgânicos livres; e grupo com adição de ...
Pascoal Funari Junior   +5 more
doaj   +1 more source

Marked tree demographic variation along subtle elevation differences partially explains species' habitat associations in an Amazonian forest

open access: yesJournal of Ecology, Volume 113, Issue 10, Page 2860-2874, October 2025.
These findings show that even small differences in elevation can lead to biologically meaningful variation in resource access that translates into significant differences in tree growth and survival. However, resource access could not fully explain the patterns of topographically driven demographic variation we observed. While certain species may still
Paola A. Jaramillo   +4 more
wiley   +1 more source

Microbial drivers of root plasticity

open access: yesNew Phytologist, Volume 248, Issue 1, Page 52-67, October 2025.
Summary Soils are highly heterogeneous and dynamic systems, experiencing a constant flow of plant root exudates and moisture fluctuations that affect nutrient distribution, soil physicochemical properties, and microbial metabolisms. Plant roots adjust their development within the soil matrix (growth, branching, root angle, and anatomical features) by ...
Francisco Dini‐Andreote   +5 more
wiley   +1 more source

Effect of a ceruminolytic ear cleaner on clinical, microbiological and ear canal microbiome evolution in canine erythemato‐ceruminous otitis externa associated with proliferation of Malassezia yeasts

open access: yesVeterinary Dermatology, Volume 36, Issue 5, Page 668-678, October 2025.
Background – Erythemato‐ceruminous otitis externa (ECOE) is commonly associated with Malassezia spp. and microbial imbalance. Hypothesis/Objective – To assess the clinical performance of an ear cleaner in dogs suffering from ECOE associated with Malassezia spp. overgrowth and to measure its impact on the microbiota. Conclusions and Clinical Relevance –
Amaury Briand   +11 more
wiley   +1 more source

Biases in Amphibian Sampling in the Amazon: Using Infrastructure and Accessibility Data to Identify Sampling Gaps

open access: yesBiotropica, Volume 57, Issue 5, September 2025.
Biogeographic knowledge of Amazonian amphibians is constrained by spatial and temporal coverage, leading to biases that affect the understanding of their diversity patterns. Using an extensive occurrence database, this study identified knowledge gaps and sampling biases linked to infrastructure and accessibility factors across the region.
Marcos Penhacek   +5 more
wiley   +1 more source

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