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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
19/07/2022 |
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Actualizado : |
02/12/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
HYDE, K.A.; AGUIAR, F.L.N.; ALVES, B.G.; ALVES, K.A.; GASTAL, G.D.A.; GASTAL, M.O.; GASTAL, E.L. |
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Afiliación : |
KENDALL A HYDE, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.; FRANCISCO L N AGUIAR, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.; BENNER G ALVES, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.; KELE A ALVES, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.; GUSTAVO DESIRE ANTUNES GASTAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.; MELBA O GASTAL, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.; EDUARDO L GASTAL, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA. |
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Título : |
Preantral follicle population and distribution in the horse ovary. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Reproduction & Fertility, 2022, Volume 3, Issue 2, Page 90-102. OPEN ACCESS. doi: https://doi.org/10.1530/RAF-21-0100 |
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ISSN : |
2633-8386 |
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DOI : |
10.1530/RAF-21-0100 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received in final form 25 March 2022; Accepted 4 April 2022; Accepted Manuscript published online 4 April 2022. -- Corresponding author: Gastal, E.L.; School of Agricultural Sciences, Southern Illinois University, Carbondale, IL, United States; email:egastal@siu.edu -- |
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Contenido : |
Abstract:
Characterization of the ovarian preantral follicle population is a necessary step to improve understanding of folliculogenesis and ovarian physiology. Therefore, in the present study, the preantral follicle population in the equine ovary in young and old mares was investigated according to follicular morphology, follicular class, distance from the geometric center using ovarian maps, and follicular density within ovarian portions (lateral vs intermediary) and regions (dorsal vs ventral). Ovaries were collected from an abattoir and histologically processed for evaluation, and the follicle population was calculated. Overall, in the current detailed study, a higher preantral follicle population per mare ovary (mean: 82,206 ± 50,022; range: 1477 to 773,091) than originally reported was identified. Additionally, a mare age effect was observed in the follicle population (young: 152,664 vs old: 11,750) and the spatial distribution of morphologically normal and abnormal follicles and the density and population of follicular classes. These results demonstrate that, in addition to the preantral follicle population in the mare ovary being comparable to that of other species, the location and spatial distribution of these follicles is dynamic and varies depending on mare age and follicle status (i.e. morphology and developmental stage). The characterization of the distribution and population of preantral follicles in the mare ovary provided by this study can potentially aid in improving reproductive studies and assisted reproductive techniques and may expand the understanding of mechanisms involving ovarian plasticity and follicular migration. © 2022 The authors. MenosAbstract:
Characterization of the ovarian preantral follicle population is a necessary step to improve understanding of folliculogenesis and ovarian physiology. Therefore, in the present study, the preantral follicle population in the equine ovary in young and old mares was investigated according to follicular morphology, follicular class, distance from the geometric center using ovarian maps, and follicular density within ovarian portions (lateral vs intermediary) and regions (dorsal vs ventral). Ovaries were collected from an abattoir and histologically processed for evaluation, and the follicle population was calculated. Overall, in the current detailed study, a higher preantral follicle population per mare ovary (mean: 82,206 ± 50,022; range: 1477 to 773,091) than originally reported was identified. Additionally, a mare age effect was observed in the follicle population (young: 152,664 vs old: 11,750) and the spatial distribution of morphologically normal and abnormal follicles and the density and population of follicular classes. These results demonstrate that, in addition to the preantral follicle population in the mare ovary being comparable to that of other species, the location and spatial distribution of these follicles is dynamic and varies depending on mare age and follicle status (i.e. morphology and developmental stage). The characterization of the distribution and population of preantral follicles in the mare ovary provided by this study can potentially aid in... Presentar Todo |
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Palabras claves : |
Equine ovarian plasticity; Folliculogenesis; Preantral follicles; Spatial distribution and population??. |
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Thesagro : |
CABALLOS. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16663/1/RAF-21-0100.pdf
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Marc : |
LEADER 02854naa a2200289 a 4500
001 1063439
005 2022-12-02
008 2022 bl uuuu u00u1 u #d
022 $a2633-8386
024 7 $a10.1530/RAF-21-0100$2DOI
100 1 $aHYDE, K.A.
245 $aPreantral follicle population and distribution in the horse ovary.$h[electronic resource]
260 $c2022
500 $aArticle history: Received in final form 25 March 2022; Accepted 4 April 2022; Accepted Manuscript published online 4 April 2022. -- Corresponding author: Gastal, E.L.; School of Agricultural Sciences, Southern Illinois University, Carbondale, IL, United States; email:egastal@siu.edu --
520 $aAbstract: Characterization of the ovarian preantral follicle population is a necessary step to improve understanding of folliculogenesis and ovarian physiology. Therefore, in the present study, the preantral follicle population in the equine ovary in young and old mares was investigated according to follicular morphology, follicular class, distance from the geometric center using ovarian maps, and follicular density within ovarian portions (lateral vs intermediary) and regions (dorsal vs ventral). Ovaries were collected from an abattoir and histologically processed for evaluation, and the follicle population was calculated. Overall, in the current detailed study, a higher preantral follicle population per mare ovary (mean: 82,206 ± 50,022; range: 1477 to 773,091) than originally reported was identified. Additionally, a mare age effect was observed in the follicle population (young: 152,664 vs old: 11,750) and the spatial distribution of morphologically normal and abnormal follicles and the density and population of follicular classes. These results demonstrate that, in addition to the preantral follicle population in the mare ovary being comparable to that of other species, the location and spatial distribution of these follicles is dynamic and varies depending on mare age and follicle status (i.e. morphology and developmental stage). The characterization of the distribution and population of preantral follicles in the mare ovary provided by this study can potentially aid in improving reproductive studies and assisted reproductive techniques and may expand the understanding of mechanisms involving ovarian plasticity and follicular migration. © 2022 The authors.
650 $aCABALLOS
653 $aEquine ovarian plasticity
653 $aFolliculogenesis
653 $aPreantral follicles
653 $aSpatial distribution and population??
700 1 $aAGUIAR, F.L.N.
700 1 $aALVES, B.G.
700 1 $aALVES, K.A.
700 1 $aGASTAL, G.D.A.
700 1 $aGASTAL, M.O.
700 1 $aGASTAL, E.L.
773 $tReproduction & Fertility, 2022, Volume 3, Issue 2, Page 90-102. OPEN ACCESS. doi: https://doi.org/10.1530/RAF-21-0100
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
17/10/2014 |
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Actualizado : |
15/09/2020 |
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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 : |
CUBBAGE, F.; MAC DONAGH, P.; SAWINSKI, J.; RUBILAR, R.; DONOSO, P.; FERREIRA, A.; HOEFLICH, V.; MORALES OLMOS, V.; FERREIRA, G.; BALMELLI, G.; SIRY, J.; BAEZ, M.N.; ALVAREZ, J. |
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Afiliación : |
FREDERICK CUBBAGE, Department of Forestry and Environmental Resources, North Carolina State University, USA; PATRICIO MAC DONAGH, Universidad Nacional de Misiones (UNAM), Eldorado, Misiones, Argentina; JOSÉ SAWINSKI, Universidade do Contestado-Canoinhas, Canoinhas, Brazil; RAFAEL RUBILAR, Universidad de Concepción, Concepción, Chile; PABLO DONOSO, Universidad Austral de Chile, Valdivia, Chile; ARNALDO FERREIRA, Consultant, Forest Genetics, Los Angeles, CA, USA; VITOR HOEFLICH, Embrapa Florestas and Universidade Federal do Paraná (UFPR), Brazil Curitiba, Brazil; VIRGINIA MORALES OLMOS, University of Georgia, Athens, GA, USA; GUSTAVO ALVARO FERREIRA DE MATTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO DANIEL BALMELLI HERNANDEZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; JACEK SIRY, University of Georgia, Athens, GA, USA; MIRTA NOEMI BÁEZ, Universidad Nacional de Misiones (UNAM), Eldorado, Misiones, Argentina; JOSÉ ALVAREZ, CMPC Forestry, Concepción, Chile. |
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Título : |
Timber investment returns for selected plantations and native forests in South America and the Southern United States. |
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Fecha de publicación : |
2007 |
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Fuente / Imprenta : |
New Forests, 2007, v. 33, no. 3, p. 237-255. DOI: https://doi.org/10.1007/s11056-006-9025-4 |
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DOI : |
10.1007/s11056-006-9025-4 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 3 April 2006 / Accepted: 15 October 2006 / Published online: 13 December 2006. |
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Contenido : |
Timber investment returns were estimated for the principal exotic and selected native species in the Southern Cone of Latin America and in the Southern United States. Exotic eucalyptus plantations in South America were most profitable, with internal rates of returns (IRRs) ranging from 13% to 23%, followed by exotic loblolly pine, with IRRs from 9% to 17%. Average loblolly pine plantation returns in the US South were less profitable, with an IRR of about 9.5%, and natural forest management in the South had IRRs of 4% to 8%. Subtropical native species plantations of the best araucaria and nothofagus species had reasonable financial returns, with IRRs ranging from 5% to 13%. Subtropical or tropical native forests had fewer commercial timber species, and had much lower growth rates and returns.
Their IRRs were less than 4%, or even negative for unmanaged stands. State subsidy payments for forest plantations or for timber stand improvements increased IRRs
somewhat and reserving areas for environmental protection reduced their IRRs slightly. Including land costs in the cash flows decreased these internal rates of return
substantially. Natural stand returns in Latin America were much less than those of plantations, but management of those stands offered better rates of return than only
holding the land. |
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Palabras claves : |
BIOLOGICAL AND FINANCIAL RISK; DESARROLLO TERRITORIAL; FINANCIAL ANALYSES; FOREST PLANTATIONS; LATIN AMERICA; NATIVE FORESTS; SECTOR FORESTAL-MADERERO; URUGUAY. |
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Thesagro : |
AMERICA DEL SUR; EUCALYPTUS; FORESTACIÓN; INVERSIONES; MADERA. |
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Asunto categoría : |
K10 Producción forestal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3570/1/New-Forests2007v33n3p237-255.pdf
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Marc : |
LEADER 02683naa a2200445 a 4500
001 1051160
005 2020-09-15
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1007/s11056-006-9025-4$2DOI
100 1 $aCUBBAGE, F.
245 $aTimber investment returns for selected plantations and native forests in South America and the Southern United States.
260 $c2007
500 $aArticle history: Received: 3 April 2006 / Accepted: 15 October 2006 / Published online: 13 December 2006.
520 $aTimber investment returns were estimated for the principal exotic and selected native species in the Southern Cone of Latin America and in the Southern United States. Exotic eucalyptus plantations in South America were most profitable, with internal rates of returns (IRRs) ranging from 13% to 23%, followed by exotic loblolly pine, with IRRs from 9% to 17%. Average loblolly pine plantation returns in the US South were less profitable, with an IRR of about 9.5%, and natural forest management in the South had IRRs of 4% to 8%. Subtropical native species plantations of the best araucaria and nothofagus species had reasonable financial returns, with IRRs ranging from 5% to 13%. Subtropical or tropical native forests had fewer commercial timber species, and had much lower growth rates and returns. Their IRRs were less than 4%, or even negative for unmanaged stands. State subsidy payments for forest plantations or for timber stand improvements increased IRRs somewhat and reserving areas for environmental protection reduced their IRRs slightly. Including land costs in the cash flows decreased these internal rates of return substantially. Natural stand returns in Latin America were much less than those of plantations, but management of those stands offered better rates of return than only holding the land.
650 $aAMERICA DEL SUR
650 $aEUCALYPTUS
650 $aFORESTACIÓN
650 $aINVERSIONES
650 $aMADERA
653 $aBIOLOGICAL AND FINANCIAL RISK
653 $aDESARROLLO TERRITORIAL
653 $aFINANCIAL ANALYSES
653 $aFOREST PLANTATIONS
653 $aLATIN AMERICA
653 $aNATIVE FORESTS
653 $aSECTOR FORESTAL-MADERERO
653 $aURUGUAY
700 1 $aMAC DONAGH, P.
700 1 $aSAWINSKI, J.
700 1 $aRUBILAR, R.
700 1 $aDONOSO, P.
700 1 $aFERREIRA, A.
700 1 $aHOEFLICH, V.
700 1 $aMORALES OLMOS, V.
700 1 $aFERREIRA, G.
700 1 $aBALMELLI, G.
700 1 $aSIRY, J.
700 1 $aBAEZ, M.N.
700 1 $aALVAREZ, J.
773 $tNew Forests, 2007$gv. 33, no. 3, p. 237-255. DOI: https://doi.org/10.1007/s11056-006-9025-4
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INIA Tacuarembó (TBO) |
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