scholarly journals Characteristics of a precocious line of Eimeria tenella: Pathogenicity and endogenous development.

1988 ◽  
Vol 50 (2) ◽  
pp. 445-452 ◽  
Author(s):  
Harumoto KAWAGUCHI ◽  
Takao KONISHI ◽  
Takashi NAKAMURA
Keyword(s):  
Eimeria Tenella ◽  
Endogenous Development ◽  
Precocious Line

Eimeria mitis: a comparison of the endogenous developmental stages of a line selected for early maturation and the parent strain

Parasitology ◽  
1984 ◽  
Vol 88 (1) ◽  
pp. 37-44 ◽  
Author(s):  
V. McDonald ◽  
M. W. Shirley
Keyword(s):  
Life Cycle ◽  
Epithelial Cells ◽  
Parent Strain ◽  
First Generation ◽  
Developmental Stages ◽  
Reproductive Potential ◽  
Life Cycles ◽  
Endogenous Development ◽  
Early Maturation ◽  
Precocious Line

SUMMARYThe endogenous development of the Houghton (H) strain of Eimeria mitis (= mivati) was compared with the life-cycle of a precocious (HP) line derived from the H strain. In both parasites 4 generations of schizonts which developed in epithelial cells were observed: the 1st and 2nd were found in the crypts and the 3rd and 4th in the villi. Gametocytes and zygotes occupied epithelial cells at the tips of the villi. The onset of gametogony normally coincided with the maturation of 4th-generation schizonts. The infection was confined initially to an area of the gut extending from the jejunum to the ileo-caecal junction but 3rd-generation merozoites and subsequent stages were also found in the caeca and rectum. The life-cycle of the precocious line was shorter than that of the parent strain. Gametocytes appeared to develop from 3rd-generation as well as from 4th-generation merozoites. Also, sporozoites of the precocious line transformed to trophozoites before those of the parent strain. First-generation schizonts of the HP line tended to be smaller and to contain fewer merozoites than those of the H strain. The differences between the life-cycles of the two parasites account for the lower reproductive potential of the precocious line.

The pathogenicity, immunogenicity and endogenous development of a precocious line ofEimeria brunetti

1986 ◽  
Vol 15 (4) ◽  
pp. 697-704 ◽  
Author(s):  
Joyce K. Johnson ◽  
Peter L. Long ◽  
M. Elizabeth McKenzie
Keyword(s):  
Endogenous Development ◽  
Precocious Line

scholarly journals The Growth of Eimeria tenella: Characterization and Application of Quantitative Methods to Assess Sporozoite Invasion and Endogenous Development in Cell Culture

2020 ◽  
Vol 10 ◽  
Author(s):  
Virginia Marugan-Hernandez ◽  
Georgia Jeremiah ◽  
Kelsilandia Aguiar-Martins ◽  
Alana Burrell ◽  
Sue Vaughan ◽  
...  
Keyword(s):  
Cell Culture ◽  
Quantitative Methods ◽  
Eimeria Tenella ◽  
Endogenous Development

Reproductive characteristics of a precocious vaccine line (Rt3+15) of Eimeria tenella in embryonating chicken eggs

2006 ◽  
Vol 51 (2) ◽  
Author(s):  
D. Grant Richards ◽  
Kevin Whithear ◽  
Peter Scott ◽  
Robin Gasser
Keyword(s):  
Economic Importance ◽  
Eimeria Tenella ◽  
Intestinal Disease ◽  
Chicken Embryos ◽  
Reproductive Characteristics ◽  
Precocious Line ◽  
Chicken Eggs

AbstractCoccidiosis of chickens, caused by species of Eimeria (Protozoa, Apicomplexa), is an intestinal disease of major economic importance worldwide. In the present study, the reproductive characteristics of a precocious line (designated E. tenella Rt3+15) from Australia were investigated in chicken embryos and the implications of the findings briefly discussed.

Transfected Eimeria tenella Could Complete Its Endogenous Development In Vitro

2008 ◽  
Vol 94 (4) ◽  
pp. 978-980 ◽  
Author(s):  
T. Y. Shi ◽  
X. Y. Liu ◽  
L. L. Hao ◽  
J. D. Li ◽  
Abdel Nabi Gh ◽  
...  
Keyword(s):  
Eimeria Tenella ◽  
Endogenous Development ◽  
Development In Vitro

Lecturas posibles sobre la construcción del actor económico

2017 ◽  
pp. 163
Author(s):  
Nicolás Gómez Núñez
Keyword(s):  
Economic Growth ◽  
Public Policies ◽  
Local Level ◽  
Endogenous Development ◽  
Economic Activities ◽  
The Public ◽  
Basic Ideas

En tres breves capítulos, el artículo pone a disposición las ideas básicas que cruzan la reflexión sobre las actividades económicas que las personas realizan en condiciones de pobreza, destacándose la preocupación sobre si estos desempeños pueden constituirse en alternativas de crecimiento económico a nivel local o si ellas son actores que inciden en las políticas públicas que organizan los supuestos del desarrollo.Palabras clave Actividades Económicas Autogestionadas / Autonomía / Capacitación / Desarrollo Endógeno.Abstract:In three brief chapters, the article displays the basic ideas that intersect the reflection on the economic activities that people perform in conditions of poverty, standing out the concern whether these performances can constitute in alternatives of economic growth at the local level or whether they are activities that affect the public policies which organize the theories of development.Key words Self-managed economic activities / Autonomy / Training / Endogenous Development

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