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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
16/03/2022 |
Autor : |
URUGUAY. MAP (MINISTERIO DE AGRICULTURA Y PESCA); IICA (INSTITUTO INTERAMERICANO DE COOPERACIÓN PARA LA AGRICULTURA) |
Título : |
Desarrollo Regional Agropecuario en el Noreste del Uruguay: Proyecto Agrícola Integrado |
Fecha de publicación : |
1981 |
Fuente / Imprenta : |
Montevideo (Uruguay): MAP; IICA, 1981. |
Páginas : |
Paginación irregular |
Serie : |
(Publicaciones Miscelaneas ; 279) |
ISSN : |
0534-5391 |
Idioma : |
Español |
Notas : |
Material mimeografiado |
Palabras claves : |
SIMON BOLIVAR. |
Thesagro : |
ASISTENCIA TECNICA; AYUDA AL DESARROLLO; CAMBIO TECNOLOGICO; CAPACITACION; CREDITO; DESARROLLO ECONOMICO Y SOCIAL; DESARROLLO REGIONAL; DESARROLLO RURAL; EMPRESAS PEQUEÑAS; ENTORNO SOCIOECONOMICO; EXPLOTACION EN PEQUEÑA ESCALA; EXPLOTACIONES AGRARIAS; FACTORES DE PRODUCCION; INVESTIGACION; MANO DE OBRA; MERCADEO; PRODUCTIVIDAD; PROYECTOS DE DESARROLLO; TECNOLOGIA; TRANSFERENCIA DE TECNOLOGIA; URUGUAY. |
Asunto categoría : |
-- |
Marc : |
LEADER 01335nam a2200421 a 4500 001 1015634 005 2022-03-16 008 1981 bl uuuu u00u1 u #d 022 $a0534-5391 100 1 $aURUGUAY. MAP (MINISTERIO DE AGRICULTURA Y PESCA) 245 $aDesarrollo Regional Agropecuario en el Noreste del Uruguay$bProyecto Agrícola Integrado 260 $aMontevideo (Uruguay): MAP; IICA$c1981 300 $aPaginación irregular 490 $a(Publicaciones Miscelaneas ; 279) 500 $aMaterial mimeografiado 650 $aASISTENCIA TECNICA 650 $aAYUDA AL DESARROLLO 650 $aCAMBIO TECNOLOGICO 650 $aCAPACITACION 650 $aCREDITO 650 $aDESARROLLO ECONOMICO Y SOCIAL 650 $aDESARROLLO REGIONAL 650 $aDESARROLLO RURAL 650 $aEMPRESAS PEQUEÑAS 650 $aENTORNO SOCIOECONOMICO 650 $aEXPLOTACION EN PEQUEÑA ESCALA 650 $aEXPLOTACIONES AGRARIAS 650 $aFACTORES DE PRODUCCION 650 $aINVESTIGACION 650 $aMANO DE OBRA 650 $aMERCADEO 650 $aPRODUCTIVIDAD 650 $aPROYECTOS DE DESARROLLO 650 $aTECNOLOGIA 650 $aTRANSFERENCIA DE TECNOLOGIA 650 $aURUGUAY 653 $aSIMON BOLIVAR 700 1 $aIICA (INSTITUTO INTERAMERICANO DE COOPERACIÓN PARA LA AGRICULTURA)
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
Fecha actual : |
14/11/2015 |
Actualizado : |
05/11/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
DAMIÁN, J.P.; BERACOCHEA, F.; HÖTZEL, M.J.; BANCHERO, G.; UNGERFELD, R. |
Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Reproductive and sexual behaviour development of dam or artificially reared male lambs. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Physiology and Behavior, 2015, v.147, p. 47-53. |
ISSN : |
0031-9384 |
DOI : |
10.1016/j.physbeh.2015.04.004 |
Idioma : |
Inglés |
Notas : |
Article history:Received date: 30 December 2014/Revised date: 27 March 2015/Accepted date: 2 April 2015. |
Contenido : |
ABSTRACT.
The objective of this study was to determine if artificially reared male lambs differ from those reared by their mothers in their reproductive development and sexual behaviour during the first breeding season and in their serum testosterone to a GnRH challenge at the end of the first breeding season. Lambs were assigned to two experimental groups: 1) artificially reared lambs, separated from their dams 24-36. h after birth (Week 0) and fed sheep milk until 10. weeks of age (group AR, n = 14); and 2) lambs reared by their dams until 10. weeks of age (group DR, n = 13). Reproductive parameters and sexual behaviour were recorded from Weeks 9 to 39. The GnRH challenge was performed on Week 40. Body weight, scrotal circumference, gonado-somatic index, testosterone concentration and sperm parameters were unaffected by group, but increased with age (P < 0.0001). Lambs reared by their mothers had greater values of gonado-somatic index on Weeks 9, 16 and 19 (P < 0.05), and tended to reach puberty earlier than AR (22.9 ± 0.7 vs. 25.1 ± 1.1. weeks, respectively, P = 0.087). Lambs reared by their mothers presented more lateral approaches and mount attempts than AR (P < 0.05), and DR lambs presented more mounts on Weeks 32 and 39 than AR (P < 0.05). Blood testosterone concentrations 3.5 and 4. h after the GnRH challenge were higher in AR than in DR lambs (P < 0.05). In conclusion mother rearing promoted sexual behaviour and reproductive performance of male lambs.
© 2015. |
Palabras claves : |
COMPORTAMIENTO SEXUAL; CONCENTRACIÓN DE TESTOSTERONA; CORDEROS; CRIANZA ARTIFICIAL DE CORDEROS; CRIANZA NATURAL DE CORDEROS; DESEMPEÑO REPRODUCTIVO EN CORDEROS; GnRH; HABILIDAD MATERNA EN LA OVEJA; HORMONA LIBERADORA DE GONADOTROPINA; ÍNDICE GONADOSOMÁTICO; LACTANCIA MATERNA EN OVINOS; MOTILIDAD DE LOS ESPERMATOZOIDES; PUBERTAD PRECOZ EN CORDEROS; VÍNCULO MADRE-CRÍA. |
Thesagro : |
COMPORTAMIENTO REPRODUCTIVO; CORDEROS; OVINOS; REPRODUCTIVIDAD. |
Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 02907naa a2200421 a 4500 001 1053881 005 2019-11-05 008 2015 bl uuuu u00u1 u #d 022 $a0031-9384 024 7 $a10.1016/j.physbeh.2015.04.004$2DOI 100 1 $aDAMIÁN, J.P. 245 $aReproductive and sexual behaviour development of dam or artificially reared male lambs.$h[electronic resource] 260 $c2015 500 $aArticle history:Received date: 30 December 2014/Revised date: 27 March 2015/Accepted date: 2 April 2015. 520 $aABSTRACT. The objective of this study was to determine if artificially reared male lambs differ from those reared by their mothers in their reproductive development and sexual behaviour during the first breeding season and in their serum testosterone to a GnRH challenge at the end of the first breeding season. Lambs were assigned to two experimental groups: 1) artificially reared lambs, separated from their dams 24-36. h after birth (Week 0) and fed sheep milk until 10. weeks of age (group AR, n = 14); and 2) lambs reared by their dams until 10. weeks of age (group DR, n = 13). Reproductive parameters and sexual behaviour were recorded from Weeks 9 to 39. The GnRH challenge was performed on Week 40. Body weight, scrotal circumference, gonado-somatic index, testosterone concentration and sperm parameters were unaffected by group, but increased with age (P < 0.0001). Lambs reared by their mothers had greater values of gonado-somatic index on Weeks 9, 16 and 19 (P < 0.05), and tended to reach puberty earlier than AR (22.9 ± 0.7 vs. 25.1 ± 1.1. weeks, respectively, P = 0.087). Lambs reared by their mothers presented more lateral approaches and mount attempts than AR (P < 0.05), and DR lambs presented more mounts on Weeks 32 and 39 than AR (P < 0.05). Blood testosterone concentrations 3.5 and 4. h after the GnRH challenge were higher in AR than in DR lambs (P < 0.05). In conclusion mother rearing promoted sexual behaviour and reproductive performance of male lambs. © 2015. 650 $aCOMPORTAMIENTO REPRODUCTIVO 650 $aCORDEROS 650 $aOVINOS 650 $aREPRODUCTIVIDAD 653 $aCOMPORTAMIENTO SEXUAL 653 $aCONCENTRACIÓN DE TESTOSTERONA 653 $aCORDEROS 653 $aCRIANZA ARTIFICIAL DE CORDEROS 653 $aCRIANZA NATURAL DE CORDEROS 653 $aDESEMPEÑO REPRODUCTIVO EN CORDEROS 653 $aGnRH 653 $aHABILIDAD MATERNA EN LA OVEJA 653 $aHORMONA LIBERADORA DE GONADOTROPINA 653 $aÍNDICE GONADOSOMÁTICO 653 $aLACTANCIA MATERNA EN OVINOS 653 $aMOTILIDAD DE LOS ESPERMATOZOIDES 653 $aPUBERTAD PRECOZ EN CORDEROS 653 $aVÍNCULO MADRE-CRÍA 700 1 $aBERACOCHEA, F. 700 1 $aHÖTZEL, M.J. 700 1 $aBANCHERO, G. 700 1 $aUNGERFELD, R. 773 $tPhysiology and Behavior, 2015$gv.147, p. 47-53.
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