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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
21/02/2014 |
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Actualizado : |
31/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SCARAMUZZI, R.J.; BAIRD, D.T.; CAMPBELL, B.K.; DRIANCOURT, M.A.; DUPONT, J.; FORTUNE, J.E.; GILCHRIST, R.B.; MARTIN, G.B.; MCNATTY, K.P.; MCNEILLY, A.S.; MONGET, P.; MONNIAUX, D.; VIÑOLES, C.; WEBB, R. |
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Afiliación : |
R.J. SCARABUZZI, INRA, UMR85 Physiologie de la Reproduction et des Comportements, Centre INRA de Tours, 37380 Nouzilly, France.B Department of Veterinary Basic Sciences, The Royal Veterinary College, Hawkshead Lane, North Mimms, Hertfordshire AL9 7TA, UK; D.T. BAIRD, University of Edinburgh, Centre for Reproductive Biology, The Queen?s Medical; B.K. CAMPBELL, University of Nottingham, Division of Obstetrics and Gynaecology, The Queen?s Medical Centre, Nottingham NG7 2UH, UK.; M.A. DRIANCOURT, Intervet Schering Plough Animal Health, Intervet Pharma R & D, BP 67131, 49071 Beaucouze´, France; J. DUPONT, INRA, UMR85 Physiologie de la Reproduction et des Comportements, Centre INRA de Tours, 37380 Nouzilly, France.; J.E. FORTUNE, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.; R.B. GILCHRIST, Robinson Institute, School of Paediatrics and Reproductive Health, Medical School South, University of Adelaide, SA 5005, Australia; G.B. MARTIN, Animal Production Systems, UWA Institute of Agriculture, The University of Western Australia, Crawley, WA 6009, Australia; K.P. MCNATTY, School of Biological Sciences, Victoria University of Wellington, Wellington 6140, New Zealand.; A.S. MCNEILLY, School of Biological Sciences, Victoria University of Wellington, Wellington 6140, New Zealand.; P. MONGET, INRA, UMR85 Physiologie de la Reproduction et des Comportements, Centre INRA de Tours, 37380 Nouzilly, France.; D. MONNIAUX, INRA, UMR85 Physiologie de la Reproduction et des Comportements, Centre INRA de Tours, 37380 Nouzilly, France.; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; R. WEBB, L University of Nottingham, Division of Animal Science, School of Biosciences, Loughborough, Leicestershire LE12 5RD, UK. |
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Título : |
Regulation of folliculogenesis and the determination of ovulation rate in ruminants (Review). |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Reproduction, Fertility and Development, 2011, Volume 23, Issue 3, Pages 444-467. |
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DOI : |
10.1071/RD09161 |
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Idioma : |
Inglés |
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Notas : |
Article history: Manuscript received 11 July 2009 // Accepted 5 October 2010. |
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Contenido : |
The paper presents an update of our 1993 model of ovarian follicular development in ruminants, based on knowledge gained from the past 15 years of research. The model addresses the sequence of events from follicular formation in fetal life, through the successive waves of follicular growth and atresia, culminating with the emergence of ovulatory follicles during reproductive cycles. The original concept of five developmental classes of follicles, defined primarily by their responses to gonadotrophins, is retained: primordial, committed, gonadotrophin-responsive, gonadotrophin-dependent and ovulatory follicles. The updated model has more extensive integration of the morphological, molecular and cellular events during folliculogenesis with systemic events in the whole animal. It also incorporates knowledge on factors that influence oocyte quality and the critical roles of the oocyte in regulating follicular development and ovulation rate. The original hypothetical mechanisms determining ovulation rate are retained but with some refinements; the enhanced viability of gonadotrophin-dependent follicles and increases in the number of gonadotrophinresponsive follicles by increases in the throughput of follicles to this stage of growth. Finally, we reexamine how these two mechanisms, which are thought not to be mutually exclusive, appear to account for most of the known genetic and environmental effects on ovulation rate |
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Palabras claves : |
EWE; FOLLICLE; NUTRITION; OOCYTE; OVARY. |
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Thesagro : |
PRODUCCION ANIMAL. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 02522naa a2200373 a 4500
001 1017988
005 2019-10-31
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1071/RD09161$2DOI
100 1 $aSCARAMUZZI, R.J.
245 $aRegulation of folliculogenesis and the determination of ovulation rate in ruminants (Review).$h[electronic resource]
260 $c2011
500 $aArticle history: Manuscript received 11 July 2009 // Accepted 5 October 2010.
520 $aThe paper presents an update of our 1993 model of ovarian follicular development in ruminants, based on knowledge gained from the past 15 years of research. The model addresses the sequence of events from follicular formation in fetal life, through the successive waves of follicular growth and atresia, culminating with the emergence of ovulatory follicles during reproductive cycles. The original concept of five developmental classes of follicles, defined primarily by their responses to gonadotrophins, is retained: primordial, committed, gonadotrophin-responsive, gonadotrophin-dependent and ovulatory follicles. The updated model has more extensive integration of the morphological, molecular and cellular events during folliculogenesis with systemic events in the whole animal. It also incorporates knowledge on factors that influence oocyte quality and the critical roles of the oocyte in regulating follicular development and ovulation rate. The original hypothetical mechanisms determining ovulation rate are retained but with some refinements; the enhanced viability of gonadotrophin-dependent follicles and increases in the number of gonadotrophinresponsive follicles by increases in the throughput of follicles to this stage of growth. Finally, we reexamine how these two mechanisms, which are thought not to be mutually exclusive, appear to account for most of the known genetic and environmental effects on ovulation rate
650 $aPRODUCCION ANIMAL
653 $aEWE
653 $aFOLLICLE
653 $aNUTRITION
653 $aOOCYTE
653 $aOVARY
700 1 $aBAIRD, D.T.
700 1 $aCAMPBELL, B.K.
700 1 $aDRIANCOURT, M.A.
700 1 $aDUPONT, J.
700 1 $aFORTUNE, J.E.
700 1 $aGILCHRIST, R.B.
700 1 $aMARTIN, G.B.
700 1 $aMCNATTY, K.P.
700 1 $aMCNEILLY, A.S.
700 1 $aMONGET, P.
700 1 $aMONNIAUX, D.
700 1 $aVIÑOLES, C.
700 1 $aWEBB, R.
773 $tReproduction, Fertility and Development, 2011, Volume 23, Issue 3, Pages 444-467.
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INIA Tacuarembó (TBO) |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
24/04/2018 |
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Actualizado : |
09/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
GIANNITTI, F.; FRAGA, M.; CAFFARENA, D.; SCHILD, C.; BANCHERO, G.; ARMIÉN, A.G.; TRAVERÍA, G.; MARTHALER, D.; WELLS, S.J.; RIET-CORREA, F. |
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Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, United States.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RUBEN DARÍO CAFFARENA LEDESMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS SCHILD, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANÍBAL GUILLERMO ARMIÉN, Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, United States.; GABRIEL TRAVERÍA, Centro de Diagnóstico e Investigaciones Veterinarias (CEDIVE), Universidad Nacional de La Plata, Chascomús, Buenos Aires, Argentina.; DOUGLAS MARTHALER, Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, United States.; SCOTT JOSEPH WELLS, Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, United States.; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Mycobacterium paratuberculosis sheep type strain in Uruguay: Evidence for a wider geographic distribution in South America. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Journal of Infection in Developing Countries , v. 12, n. 3, p.190-195, 2018. |
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DOI : |
10.3855/jidc.9751 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 11 September 2017 // Accepted 15 March 2018. |
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Contenido : |
Abstract:
Johne?s disease (JD) is an economically important disease of ruminants caused by Mycobacterium avium paratuberculosis (MAP), which also
infects other species including humans. Two major MAP strain types are currently recognized: sheep (S) and cattle (C) types. Information on
JD prevalence and MAP types infecting small ruminants in South America is limited, and all but one of the MAP types reported from this
region are of the C type. This study describes clinicopathological, molecular and microbiological findings in 11 cases of JD caused by a type
S MAP strain, and estimated true within-flock prevalence in a ~735-sheep operation in Uruguay. Postmortem examination and histology
(hematoxylin-eosin and Ziehl-Neelsen stains) of samples from 41 selected sheep revealed lymphohistiocytic/granulomatous enteritis and
mesenteric lymphadenitis in 11 animals, with moderate/severe multibacillary lesions in 6 clinical cases, and minimal/mild paucibacillary lesions
in 5 sub-clinical cases. Immunohistochemistry using an antibody against Mycobacterium bovis that cross-reacts with MAP (2 cases), and
transmission electron microscopy (1 case), revealed myriads of intrahistiocytic mycobacteria. MAP was isolated in one case and detected by
PCR in 6 cases. The S type of MAP was identified using a multiplex PCR that distinguishes between S and C types, and PCR-REA. The
estimated true within-flock prevalence was ? 2.3%. This represents the first communication on within-flock prevalence of JD associated with
a type S MAP strain in South America and the second documentation of this strain in the subcontinent. Additional studies are required to better
understand the molecular epidemiology of the different MAP types in the region. MenosAbstract:
Johne?s disease (JD) is an economically important disease of ruminants caused by Mycobacterium avium paratuberculosis (MAP), which also
infects other species including humans. Two major MAP strain types are currently recognized: sheep (S) and cattle (C) types. Information on
JD prevalence and MAP types infecting small ruminants in South America is limited, and all but one of the MAP types reported from this
region are of the C type. This study describes clinicopathological, molecular and microbiological findings in 11 cases of JD caused by a type
S MAP strain, and estimated true within-flock prevalence in a ~735-sheep operation in Uruguay. Postmortem examination and histology
(hematoxylin-eosin and Ziehl-Neelsen stains) of samples from 41 selected sheep revealed lymphohistiocytic/granulomatous enteritis and
mesenteric lymphadenitis in 11 animals, with moderate/severe multibacillary lesions in 6 clinical cases, and minimal/mild paucibacillary lesions
in 5 sub-clinical cases. Immunohistochemistry using an antibody against Mycobacterium bovis that cross-reacts with MAP (2 cases), and
transmission electron microscopy (1 case), revealed myriads of intrahistiocytic mycobacteria. MAP was isolated in one case and detected by
PCR in 6 cases. The S type of MAP was identified using a multiplex PCR that distinguishes between S and C types, and PCR-REA. The
estimated true within-flock prevalence was ? 2.3%. This represents the first communication on within-flock prevalence of J... Presentar Todo |
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Palabras claves : |
ENTERITIS; INFECTIOUS DISEASE; LIVESTOCK; PARATUBERCULOSIS; PLATAFORMA SALUD ANIMAL; RUMINANTS. |
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Thesagro : |
ENFERMEDADES INFECCIOSAS; OVEJA; RUMIANTES; URUGUAY. |
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Asunto categoría : |
L73 Enfermedades de los animales |
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Marc : |
LEADER 02872naa a2200373 a 4500
001 1058474
005 2019-10-09
008 2018 bl uuuu u00u1 u #d
024 7 $a10.3855/jidc.9751$2DOI
100 1 $aGIANNITTI, F.
245 $aMycobacterium paratuberculosis sheep type strain in Uruguay$bEvidence for a wider geographic distribution in South America.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 11 September 2017 // Accepted 15 March 2018.
520 $aAbstract: Johne?s disease (JD) is an economically important disease of ruminants caused by Mycobacterium avium paratuberculosis (MAP), which also infects other species including humans. Two major MAP strain types are currently recognized: sheep (S) and cattle (C) types. Information on JD prevalence and MAP types infecting small ruminants in South America is limited, and all but one of the MAP types reported from this region are of the C type. This study describes clinicopathological, molecular and microbiological findings in 11 cases of JD caused by a type S MAP strain, and estimated true within-flock prevalence in a ~735-sheep operation in Uruguay. Postmortem examination and histology (hematoxylin-eosin and Ziehl-Neelsen stains) of samples from 41 selected sheep revealed lymphohistiocytic/granulomatous enteritis and mesenteric lymphadenitis in 11 animals, with moderate/severe multibacillary lesions in 6 clinical cases, and minimal/mild paucibacillary lesions in 5 sub-clinical cases. Immunohistochemistry using an antibody against Mycobacterium bovis that cross-reacts with MAP (2 cases), and transmission electron microscopy (1 case), revealed myriads of intrahistiocytic mycobacteria. MAP was isolated in one case and detected by PCR in 6 cases. The S type of MAP was identified using a multiplex PCR that distinguishes between S and C types, and PCR-REA. The estimated true within-flock prevalence was ? 2.3%. This represents the first communication on within-flock prevalence of JD associated with a type S MAP strain in South America and the second documentation of this strain in the subcontinent. Additional studies are required to better understand the molecular epidemiology of the different MAP types in the region.
650 $aENFERMEDADES INFECCIOSAS
650 $aOVEJA
650 $aRUMIANTES
650 $aURUGUAY
653 $aENTERITIS
653 $aINFECTIOUS DISEASE
653 $aLIVESTOCK
653 $aPARATUBERCULOSIS
653 $aPLATAFORMA SALUD ANIMAL
653 $aRUMINANTS
700 1 $aFRAGA, M.
700 1 $aCAFFARENA, D.
700 1 $aSCHILD, C.
700 1 $aBANCHERO, G.
700 1 $aARMIÉN, A.G.
700 1 $aTRAVERÍA, G.
700 1 $aMARTHALER, D.
700 1 $aWELLS, S.J.
700 1 $aRIET-CORREA, F.
773 $tJournal of Infection in Developing Countries$gv. 12, n. 3, p.190-195, 2018.
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