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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
27/10/2017 |
Autor : |
LACUAGUE, L.; DURÁN, V. |
Afiliación : |
LAURA LACUAGUE, Universidad de la República (Uruguay). Facultad de Agronomía; VERÓNICA DURÁN. |
Título : |
Evaluación del rendimiento y calidad de cinco estirpes nativas bajo dos sistemas de corte: tesis Ing. Agr. |
Fecha de publicación : |
1989 |
Fuente / Imprenta : |
Montevideo (Uruguay): Facultad de Agronomía, 1989. |
Páginas : |
4 v. |
Idioma : |
Español |
Contenido : |
Introducción. Revisión bibliográfica. Composición química de las especies. Contenido en proteína. Contenido de carbohidrato no estructurales. Contenido de fibra. Composición anatómica de las especies. Transección foliar. Materiales y métodos. Paspalum quadrifarium. Paspalum notatum. Composición química. Porcentaje de carbohidratos no estructurales. Porcentaje de fibra bruta. Porcentaje de proteína cruda. Porcentaje de materia seca. Gramos de materia seca por macollo. Stipa satigera. Composición química. Bromus auleticus. Coelorachis selloana. Especies invernales. Especies estivales. Composición química de las especies evaluadas. Conclusiones. Resumen. Literatura citada. |
Palabras claves : |
COMPOSICIÓN QUÍMICA; COMPOSICIÓN QUÍMICA PASPALUM NOTATUM. |
Thesagro : |
BROMUS; GRAMINEAS FORRAJERAS; MANEJO DE PRADERAS; PASPALUM; PASPALUM NOTATUM; STIPA; URUGUAY; VALOR NUTRITIVO. |
Asunto categoría : |
A50 Investigación agraria |
Marc : |
LEADER 01426nam a2200253 a 4500 001 1017335 005 2017-10-27 008 1989 bl uuuu u00u1 u #d 100 1 $aLACUAGUE, L. 245 $aEvaluación del rendimiento y calidad de cinco estirpes nativas bajo dos sistemas de corte$btesis Ing. Agr. 260 $aMontevideo (Uruguay): Facultad de Agronomía$c1989 300 $a4 v. 520 $aIntroducción. Revisión bibliográfica. Composición química de las especies. Contenido en proteína. Contenido de carbohidrato no estructurales. Contenido de fibra. Composición anatómica de las especies. Transección foliar. Materiales y métodos. Paspalum quadrifarium. Paspalum notatum. Composición química. Porcentaje de carbohidratos no estructurales. Porcentaje de fibra bruta. Porcentaje de proteína cruda. Porcentaje de materia seca. Gramos de materia seca por macollo. Stipa satigera. Composición química. Bromus auleticus. Coelorachis selloana. Especies invernales. Especies estivales. Composición química de las especies evaluadas. Conclusiones. Resumen. Literatura citada. 650 $aBROMUS 650 $aGRAMINEAS FORRAJERAS 650 $aMANEJO DE PRADERAS 650 $aPASPALUM 650 $aPASPALUM NOTATUM 650 $aSTIPA 650 $aURUGUAY 650 $aVALOR NUTRITIVO 653 $aCOMPOSICIÓN QUÍMICA 653 $aCOMPOSICIÓN QUÍMICA PASPALUM NOTATUM 700 1 $aDURÁN, V.
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
08/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
A - 2 |
Autor : |
VIÑOLES, C.; FORSBERG, M.; BANCHERO, G.; RUBIANES, E. |
Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Center for Reproductive Biology, Dept. of Clinical Chemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden.; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDGARDO RUBIANES, Dept. of Physiology, Faculty of Veterinary Medicine, Lasplaces 1550, Montevideo, Uruguay. |
Título : |
Effect of long-term and short-term progestagen treatment on follicular development and pregnancy rate in cyclic ewes. |
Fecha de publicación : |
2001 |
Fuente / Imprenta : |
Theriogenology, 1 March 2001, Volume 55, Issue 4, Pages 993-1004 |
DOI : |
10.1016/S0093-691X(01)00460-5 |
Idioma : |
Inglés |
Notas : |
Article history:Received for publication: September 28, 1999/ Accepted: May 1, 2000. |
Contenido : |
Abstract.
The aim of this study was to evaluate the effect of the length of a progestagen treatment (12 d vs. 6 d) on follicular dynamics, estrus synchronization and pregnancy rate using medroxyprogesterone acetate (MAP) with or without an eCG dose at the end of MAP treatment. One hundred sixty Polwarth ewes were divided into four equal groups: long-term treated (LT, n=40); short-term treated (ST, n=40); long-term treated plus eCG (LTeCG, n=40); and short-term treated plus eCG (STeCG, n=40). Five ewes of each group were separated to undergo daily transrectal ultrasonography, and blood samples were taken for hormone determination. Until 96 h after sponge withdrawal the number of ewes in estrus was higher in both long-term-treated groups than in both short-term-treated groups but at the end of the observational period (144 h) no significant differences were found among groups. The pregnancy rate was higher in the ST group (87%) than in the other groups (LT, 63%; LTeCG, 67%; and STeCG, 58%; P< or =0.03). The ovulatory follicle emerged before sponge withdrawal in long-term-treated ewes (-3.8+/-0.4 d and -2.2+/-0.8 d for LT and LTeCG, respectively), whereas in short-term-treated ewes it emerges around sponge removal (0.4+/-1.1 d and 0.5+/-0.5 d for ST and STeCG, respectively; P< or =0.01). The ovulatory follicle in the LT group had a longer lifespan and attained a larger (P< or =0.05) maximum diameter than in the ST group. We conclude: a) that the lower pregnancy rate observed after long-term progestagen treatment was related to a slower follicular turnover that promoted the ovulation of persistent dominant follicles; (b) that short-term treatment resulted in a higher pregnancy rate probably due to the ovulation of newly recruited growing follicles; and (c) treatment with eCG had no advantage in association with long-term treatment and had a deleterious effect in combination with short-term treatment with MAP MenosAbstract.
The aim of this study was to evaluate the effect of the length of a progestagen treatment (12 d vs. 6 d) on follicular dynamics, estrus synchronization and pregnancy rate using medroxyprogesterone acetate (MAP) with or without an eCG dose at the end of MAP treatment. One hundred sixty Polwarth ewes were divided into four equal groups: long-term treated (LT, n=40); short-term treated (ST, n=40); long-term treated plus eCG (LTeCG, n=40); and short-term treated plus eCG (STeCG, n=40). Five ewes of each group were separated to undergo daily transrectal ultrasonography, and blood samples were taken for hormone determination. Until 96 h after sponge withdrawal the number of ewes in estrus was higher in both long-term-treated groups than in both short-term-treated groups but at the end of the observational period (144 h) no significant differences were found among groups. The pregnancy rate was higher in the ST group (87%) than in the other groups (LT, 63%; LTeCG, 67%; and STeCG, 58%; P< or =0.03). The ovulatory follicle emerged before sponge withdrawal in long-term-treated ewes (-3.8+/-0.4 d and -2.2+/-0.8 d for LT and LTeCG, respectively), whereas in short-term-treated ewes it emerges around sponge removal (0.4+/-1.1 d and 0.5+/-0.5 d for ST and STeCG, respectively; P< or =0.01). The ovulatory follicle in the LT group had a longer lifespan and attained a larger (P< or =0.05) maximum diameter than in the ST group. We conclude: a) that the lower pregnancy rate observed af... Presentar Todo |
Palabras claves : |
EWES; FERTILITY; OVARIAN DYNAMICS; PREÑEZ EN OVEJA; PROGESTAGEN; ULTRASONOGRAPHY. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 02753naa a2200253 a 4500 001 1049494 005 2019-10-08 008 2001 bl uuuu u00u1 u #d 024 7 $a10.1016/S0093-691X(01)00460-5$2DOI 100 1 $aVIÑOLES, C. 245 $aEffect of long-term and short-term progestagen treatment on follicular development and pregnancy rate in cyclic ewes. 260 $c2001 500 $aArticle history:Received for publication: September 28, 1999/ Accepted: May 1, 2000. 520 $aAbstract. The aim of this study was to evaluate the effect of the length of a progestagen treatment (12 d vs. 6 d) on follicular dynamics, estrus synchronization and pregnancy rate using medroxyprogesterone acetate (MAP) with or without an eCG dose at the end of MAP treatment. One hundred sixty Polwarth ewes were divided into four equal groups: long-term treated (LT, n=40); short-term treated (ST, n=40); long-term treated plus eCG (LTeCG, n=40); and short-term treated plus eCG (STeCG, n=40). Five ewes of each group were separated to undergo daily transrectal ultrasonography, and blood samples were taken for hormone determination. Until 96 h after sponge withdrawal the number of ewes in estrus was higher in both long-term-treated groups than in both short-term-treated groups but at the end of the observational period (144 h) no significant differences were found among groups. The pregnancy rate was higher in the ST group (87%) than in the other groups (LT, 63%; LTeCG, 67%; and STeCG, 58%; P< or =0.03). The ovulatory follicle emerged before sponge withdrawal in long-term-treated ewes (-3.8+/-0.4 d and -2.2+/-0.8 d for LT and LTeCG, respectively), whereas in short-term-treated ewes it emerges around sponge removal (0.4+/-1.1 d and 0.5+/-0.5 d for ST and STeCG, respectively; P< or =0.01). The ovulatory follicle in the LT group had a longer lifespan and attained a larger (P< or =0.05) maximum diameter than in the ST group. We conclude: a) that the lower pregnancy rate observed after long-term progestagen treatment was related to a slower follicular turnover that promoted the ovulation of persistent dominant follicles; (b) that short-term treatment resulted in a higher pregnancy rate probably due to the ovulation of newly recruited growing follicles; and (c) treatment with eCG had no advantage in association with long-term treatment and had a deleterious effect in combination with short-term treatment with MAP 653 $aEWES 653 $aFERTILITY 653 $aOVARIAN DYNAMICS 653 $aPREÑEZ EN OVEJA 653 $aPROGESTAGEN 653 $aULTRASONOGRAPHY 700 1 $aFORSBERG, M. 700 1 $aBANCHERO, G. 700 1 $aRUBIANES, E. 773 $tTheriogenology, 1 March 2001, Volume 55, Issue 4, Pages 993-1004
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