Results 21 to 30 of about 39,439 (216)
Enzymes as Feed Additive to Aid in Responses Against Eimeria Species in Coccidia-Vaccinated Broilers Fed Corn-Soybean Meal Diets with Different Protein Levels [PDF]
, 2007 This research aimed to evaluate the effects of adding a combination of exogenous enzymes to starter diets varying in protein content and fed to broilers vaccinated at day of hatch with live oocysts and then challenged with mixed Eimeria spp. Five hundred
Clack, Beatrice A. +8 more
core +2 more sources
Prevalence and parasite burden of oocysts in captive and free-living saffron finches, Sicalis flaveola [PDF]
Revista Brasileira de Parasitologia VeterináriaThe saffron finch, Sicalis flaveola, a passerine bird, can be found in nearly all Brazilian territory and is also raised in captivity. The objective of this work was to determine the prevalence and load of oocysts in captive saffron finches in the ...
Francisco Carlos Rodrigues de Oliveira +3 more
doaj +1 more source
On the biological and genetic diversity in Neospora caninum [PDF]
, 2010 Published: 22 March 2010Neospora caninum is a parasite regarded a major cause of foetal loss in cattle. A key requirement to an understanding of the epidemiology and pathogenicity of N.
Barber +37 more
core +4 more sources
Viability of preserved Cryptosporidium baileyi oocysts [PDF]
The Korean Journal of Parasitology, 2003 The present study was undertaken to determine the viability and infectivity of oocysts of Cryptosporidium baileyi that had been stored from 1 to 40 months at 4 degrees C preserved in 2.5% potassium dichromate solution. Oocysts of C. baileyi were purified from the feces of experimentally infected chickens using discontinuous sucrose gradients ...
Chan-Gu, Surl +2 more
openaire +2 more sources
Memorias do Instituto Oswaldo Cruz, 2015 We present a set of data on human and chicken Toxoplasma gondiiseroprevalence that was investigated and analysed in light of groundwater vulnerability information in an area endemic for waterborne toxoplasmosis in Brazil.
Flávia Pereira Vieira +6 more
doaj +1 more source
Genetic diversity of Cryptosporidium spp. in captive reptiles [PDF]
, 2004 The genetic diversity of Cryptosporidium in reptiles was analyzed by PCR-restriction fragment length polymorphism and sequence analysis of the small subunit rRNA gene.
Xiao, L. +12 more
core +2 more sources
Antigen incorporation on Cryptosporidium parvum oocyst walls [PDF]
Memórias do Instituto Oswaldo Cruz, 2001 Cryptosporidium parvum oocysts are the infective stages responsible for transmission and survival of the organism in the environment. In the present work we show that the oocyst wall, far from being a static structure, is able to incorporate antigens by a mechanism involving vesicle fusion with the wall, and the incorporation of the antigen to the ...
Entrala, Emilio +3 more
openaire +5 more sources
Memorias do Instituto Oswaldo Cruz, 1991 The mature ooxysts of six new species of Caryospora are described from the faeces of Brazilian snakes. They are differentiated from other species previously recorded from reptiles, largely on the size and shape of the oocyst and sporocyst, structure of ...
Ralph Lainson +2 more
doaj +1 more source
Dynamics of Toxoplasma gondii Oocyst Phagocytosis by Macrophages
Frontiers in Cellular and Infection Microbiology, 2020 Oocysts are the environmentally resistant stage of the protozoan parasite Toxoplasma gondii. They are responsible for foodborne infections in humans and animals worldwide.
Omar Ndao +16 more
doaj +1 more source
Mathematical Modeling of Toxoplasmosis Considering a Time Delay in the Infectivity of Oocysts
Mathematics, 2022 In this paper, we study the effect of the introduction of a time delay on the dynamics of toxoplasmosis. This time delay is the elapsed time from when oocysts become present in the environment and when they become infectious.
Gilberto González-Parra +2 more
doaj +1 more source