Encontrados 23 documentos, a visualizar página 1 de 3
Alternatives to antibiotic growth promoters in rabbit feeding - a review
Falcão, Luísa; Castro-Solla, Luís; Maertens, Luc; Marounek, Milan; Pinheiro, Victor; Freire, João Pedro; Mourão, José LuísThis review is focused on the most studied and developed substances which are commonly knownas alternatives to dietary antibiotics, particularly as far as rabbit feeds are concerned. After a reminder of thereason to be and success of antibiotic growth promoters, and why they lately came to be banned in theEuropean Union, we successively deal with probiotics, prebiotics, enzymes and organic acids. Data on rabbit...
Effects of olive leaf on gut microflora of broiler poultry
Mourão, José L.; Pereira, Ermelinda; Pinheiro, Victor; Dias, Carla; Freitas, Eliana; Pereira, Vânia; Saavedra, M.J.In 2006 European Union bans the use of antibiotics as growth promoters (AGP) in animal feed. Due to the fact that the use of antibiotics as growth promoters has been banned intensive research has focused on the development of alternative strategies with the aim of maintenance of animal health and performance. Some studies showed that olive leaves have specific organic compounds with antimicrobial activities. Th...
Effects of the dietary incorporation of untreated and white-rot fungi (Ganoderm...
Ribeiro, Luis; Pinheiro, Victor; Outor-Monteiro, Divanildo; Mourão, José Luís; Bezerra, R.M.F; Dias, A.A.; Bennett, R.N; Marques, G.; Rodrigues, M.A.The aim of this study was to evaluate the effects of the level of inclusion of olive leaves and its pre-treatment with Ganoderma resinaceum Boud on growth performance, nutrient digestibilities and caecal fermentation. A total of 48 rabbits were kept in individual cages and divided in 4 groups of 12 animals. Animals were fed ad libitum with one of four diets based on a basal feed for growing rabbits – Control di...
Níveis de cálcio e granulometria de calcário na dieta de poedeiras comerciais s...
Pelicia, K.; Mourão, José Luís; Garcia, E.A.; Pinheiro, Victor; Molino, A.B.; Berto, D.A.; Faitarone, A. B.; Vercese, F.; Silva, A.P.A total of 405 23-week-old ISA Brown layers were distributed in a completely randomized experimental design in a factorial arrangement with nine treatments consisting of three dietary calcium levels (3.5, 3.75, and 4.5%) and three limestone particle sizes (100% fine limestone (FL), 70% FL + 30% coarse limestone (CL) and 50% (FL) + 50% (CL)), with nine replicates of five birds per cage. The following parameters...
Growth performance, carcass characteristics and meat quality of growing rabbits...
Pinheiro, Victor; Outor-Monteiro, Divanildo; Silva, Severiano; Silva, J.; Mourão, José LuísThe study was carried out to investigate the effects of two housing systems on the growth performance, carcass traits, and meat quality of growing rabbits during the terminal fattening period. The rabbits were lodged in conventional cages between 35 and 59 days of age (growing period). At this age, they were moved into two different housing systems until they were 87 days of age (fattening period). During the f...
Growth performance, carcass characteristics and meat quality of growing rabbit...
Pinheiro, Victor; Outor-Monteiro, Divanildo; Silva, Severiano; Silva, José; Mourão, José LuísThe study was carried out to investigate the effects of two housing systems on the growth performance, carcass traits, and meat quality of growing rabbits during the terminal fattening period. The rabbits were lodged in conventional cages between 35 and 59 days of age (growing period). At this age, they were moved into two different housing systems until they were 87 days of age ...
Development of Sclerotium rolfsii sclerotia on soybean, corn, and wheat straw, ...
Pinheiro,Victor dos Reis; Seixas,Claudine Dinali Santos; Godoy,Cláudia Vieira; Soares,Rafael Moreira; Oliveira,Maria Cristina Neves deThe objective of this work was to evaluate the effect of moisture and temperature on the development of Sclerotium rolfsii on soybean, corn, and wheat straw. Wheat straw produced the lowest number of sclerotia. Intermediate soil moisture level (70% of field capacity), and temperatures ranging between 25-30ºC favored sclerotia development. No sclerotia were formed at temperatures between 30-35ºC, on any type of ...
Influência do teor de Mo na microestrutura de ligas Fe-9Cr-xMo
Guimarães,Rodrigo Freitas; Figueiredo,Nathália Cândido; Pinheiro,Victor Moita; Miranda,Hélio Cordeiro de; Abreu,Hamilton Ferreira Gomes deAços Cr-Mo são usados na indústria do petróleo em aplicações com óleos crus ricos em compostos sulfurosos. Aços comerciais como 2.5Cr1Mo ou 9Cr1Mo têm se mostrado ineficientes em consequência de altos índices de corrosão naftênica. Uma estratégia para resolver este problema é o aumento do teor de molibdênio destes aços. Neste trabalho foi estudado o efeito do aumento do teor de molibdênio na microestrutura de l...
Strategies for mitigation of nitrogen environmental impact from swine production
Monteiro,Divanildo Outor; Pinheiro,Victor Manuel Carvalho; Mourão,José Luís Medeiros; Rodrigues,Miguel António MachadoThis work presents strategies that can be implemented in order to minimize the environmental impact of swine slurry on soil, water, and air. This reduction can be achieved through decrease in nitrogen excretion and ammonia emissions. The correct feed formulation according to animal requirements, the increase in diet digestibility and improvement in animal performance can reduce nitrogen excretion. The use of ad...
Age affects the laying performance and egg hatchability of red-legged partridge...
Barbosa, Agata; Mourão, José Luís; Outor-Monteiro, Divanildo; Pinheiro, VictorRed-legged partridge breeders are frequently reared in captivity with the aim of producing fertile eggs and chicks. However, little is known regarding the role of breeder age on fertility and egg production performance. Therefore, we investigated the effects of breeder age on egg size and shape, flock reproductive performance, fertility, hatchability, and embryonic mortality. In experiment 1, the effects of bre...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||