Results 21 to 30 of about 3,801 (218)

Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil

Frontiers in Veterinary Science, 2022
In tropical regions, family farming is a form of production and work that is highly present in rural areas. Because the production system for free-range chickens has a low level of technification, it frequently presents massive infection by coccidia. The
Juliana Trajano da Silva, Felipe Boniedj Ventura Alvares, Estefany Ferreira de Lima, Geraldo Moreira da Silva Filho, Ana Luzia Peixoto da Silva, Brendo Andrade Lima, Thais Ferreira Feitosa, Vinícius Longo Ribeiro Vilela, Vinícius Longo Ribeiro Vilela   +8 more
doaj   +1 more source

Evaluation of a Heating System in Poultry Houses Using a CFD Model / Evaluación de un Sistema de Calefacción en Galpones Avicolas Usando un Modelo en CFD

Revista Facultad Nacional de Agronomía Medellín, 2014
.. The objective of this study was to adapt and validate a computer model using the Computational Fluid Dinamics (CFD), in the prediction of temperature and air speed in a duct distribution system coupled to a heating furnace that is used in typical ...
Flávio Alves Damasceno, Jairo Alexander Osorio Saraz, Luciano Barreto Mendes, Samuel Martin, Marcio Aredes Martins   +4 more
doaj   +1 more source

Shrimp cephalothorax meal in laying hen diets: effects on egg.

Agronomía Mesoamericana, 2015
The aim of this study was to evaluate the effect of shrimp cephalothorax meal Pleuroncodes planipes (HC) in laying hen diets over egg quality and yolk color.
Alejandro Chacón-Villalobos, Catalina Salas-Durán, Laura Zamora-Sánchez   +2 more
doaj   +1 more source

Evaluation of the Addition of Humicola Grisea Cellulase to Broiler Chicken Rations for a 21-Day Period

Poultry, 2023
This study aimed to evaluate the addition of liquid cellulose, produced by Humicola grisea, in 21-day-old broiler chickens’ diets. The treatments comprised control rations of corn and soybean meal and rations to which 500 mL/t and 1000 mL/t of cellulase ...
Dênia Oliveira de Souza, Cirano José Ulhoa, Weslane Justina da Silva, Denise Russi Rodrigues, Nadielli Pereira Bonifácio, Fabiana Ramos dos Santos, Fabiano Guimarães Silva, Cibele Silva Minafra   +7 more
doaj   +1 more source

Enthalpy thematic map interpolated with spline method for management of broiler chicken production [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2020
Owing to the exponential growth of the human population and problems related to food supply, research focused on finding the most suitable approach to manage and geographically explore the environment using sustainable technologies stand out. The present
Natália C. da Silva, Rodrigo C. Santos, Rafael Zucca, Luciano O. Geisenhoff, Rafaela S. Cesca, Juliano Lovatto   +5 more
doaj   +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

Fluxo de ração avícola em silos prismáticos com tremonha excêntrica Flow of poultry ration in prismatic silos with excentric hopper

Revista Brasileira de Engenharia Agrícola e Ambiental, 2005
Na avicultura atual, o uso de silos verticais para armazenagem de ração avícola nas fábricas e nas granjas, é fator fundamental, pois garantem produto de qualidade e rapidez no processo de descarga; entretanto, são detectados diversos problemas no ...
Marcilene V. da Nóbrega, José W. B. do Nascimento   +1 more
doaj   +1 more source

Des sources de protéines locales pour l’alimentation des volailles : quelles voies de progrès ?

Oilseeds and fats, crops and lipids, 2014
L’aviculture européenne est dépendante d’approvisionnements en soja essentiellement en provenance du Brésil. Cette matière première riche en protéines est intéressante d’un point de vue nutritionnel pour l’alimentation des volailles mais pose des ...
Bouvarel Isabelle, Lessire Michel, Narcy Agnès, Duval Elisabeth, Grasteau Sandrine, Quinsac Alain, Peyronnet Corinne, Tran Gilles, Heuze Valérie   +8 more
doaj   +1 more source

Study the spatial variability of the noise levels inside two commercial poultry housing with different adiabatic evaporative cooling systems

Dyna, 2018
The objective of the present work was to determinate the map the spatial distribution of noise levels inside two commercial poultry housing having different adiabatic evaporative cooling systems, during the life cycle of birds.
Flavio Alves Damasceno, Gabriel Araújo e Silva Ferraz, Carlos Eduardo Alves Oliveira, Jairo Alexander Osório-Saraz, Leidimar Freire Brandão   +4 more
doaj   +1 more source

Níveis de sódio na ração de frangas de 7 a 12 semanas de idade Sodium levels for pullets aged between 7 and 12 weeks

Ciência e Agrotecnologia, 2008
O experimento foi realizado para estimar as exigências de sódio em frangas leves (LV) e semipesadas (SP), durante a fase de recria (7 a 12 semanas de idade).
Marcelo Luís Gomes Ribeiro, José Humberto Vilar da Silva, José Anchieta de Araújo, Paulo Borges Rodrigues, Fernando Guilherme Perazzo Costa, José Jordão Filho   +5 more
doaj   +1 more source