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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
21/02/2014 |
Actualizado : |
25/11/2019 |
Tipo de producción científica : |
Artículos Indexados |
Autor : |
CAVESTANY, D.; NEGRIN, N.; NEGRIN, R.; GROTH, J.F. |
Afiliación : |
DANIEL CAVESTANY BOCKING, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Asesor privado Veterinaio Uruguay.; Asesor privado Veterinaio Uruguay.; Veterinarian and farm manager, Brazil and Uruguay. |
Título : |
Response of beef heifers and non-suckling beef cows to different oestrous synchronization protocols. |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
Animal Science, 2002, Volume 74, Issue 3, Pages 547-552. |
Páginas : |
. |
DOI : |
10.1017/S135772980005270X |
Idioma : |
Inglés |
Notas : |
Article history: Received 25 September 2001/Accepted 15 January 2002. |
Contenido : |
Abstract:
The objective was to evaluate different oestrous synchronization schemes in beef cattle under range conditions. In experiment 1, 202 heifers averaging 26 months of age were assigned randomly to three treatments: (a) GnRH-PG. (no. = 44) day 0 (D0): injection of GnRH; D7: injection of PGF2?; D0 to D25 oestrous detection (OD) and artificial insemination (AI); (b) OD-PG. (no. = 45) D0 to D4; OD + AI; D5: injection of PGF2?; D5 to D25 OD + AI; and (c)Ovsynch. (no. = 113) D0: injection of GnRH; D7: injection of PGF2?; D9: injection of GnRH and 16 h later AI at fixed time. In experiment 2, 318 non-suckling cows were assigned randomly to three treatments: (a) GnRH-PG. (no. = 106) D0: injection of GnRH; D7: injection of PGF2?; D0 to D25 OD + AI; (b) GnRH-MAP-PG. (no. = 106) D0: injection of a GnRH analogue and insertion of an intravaginal sponge impregnated with 250 mg of medroxyprogesterone acetate; D7: injection of PGF2? and sponge withdrawal; D0 to D25 OD + AI; (c) controls. (no. = 106) OD and AI. The experimental period lasted 25 days and, with exception of the Ovsynch treatment, oestrous detection was carried out twice a day (a.m./p.m.) and inseminations performed 12 h later. The pregnancy rates assessed by ultrasonography 30 days after AI were: experiment 1: (a) 30·0%; (b) 28·6% and (c) 62·3% (P < 0·05); experiment 2: (a) 60·2%; (b) 57·8% and (c) 45·5% (P < 0·05). It is concluded that in heifers and non-suckling cows, oestrous synchronization treatments result in higher pregnancy rates. In non-suckling cows, the addition of a progestagen did not improve the response. MenosAbstract:
The objective was to evaluate different oestrous synchronization schemes in beef cattle under range conditions. In experiment 1, 202 heifers averaging 26 months of age were assigned randomly to three treatments: (a) GnRH-PG. (no. = 44) day 0 (D0): injection of GnRH; D7: injection of PGF2?; D0 to D25 oestrous detection (OD) and artificial insemination (AI); (b) OD-PG. (no. = 45) D0 to D4; OD + AI; D5: injection of PGF2?; D5 to D25 OD + AI; and (c)Ovsynch. (no. = 113) D0: injection of GnRH; D7: injection of PGF2?; D9: injection of GnRH and 16 h later AI at fixed time. In experiment 2, 318 non-suckling cows were assigned randomly to three treatments: (a) GnRH-PG. (no. = 106) D0: injection of GnRH; D7: injection of PGF2?; D0 to D25 OD + AI; (b) GnRH-MAP-PG. (no. = 106) D0: injection of a GnRH analogue and insertion of an intravaginal sponge impregnated with 250 mg of medroxyprogesterone acetate; D7: injection of PGF2? and sponge withdrawal; D0 to D25 OD + AI; (c) controls. (no. = 106) OD and AI. The experimental period lasted 25 days and, with exception of the Ovsynch treatment, oestrous detection was carried out twice a day (a.m./p.m.) and inseminations performed 12 h later. The pregnancy rates assessed by ultrasonography 30 days after AI were: experiment 1: (a) 30·0%; (b) 28·6% and (c) 62·3% (P < 0·05); experiment 2: (a) 60·2%; (b) 57·8% and (c) 45·5% (P < 0·05). It is concluded that in heifers and non-suckling cows, oestrous synchronization treatments result in high... Presentar Todo |
Palabras claves : |
BEEF CATTLE; GnRH; OESTRUS; PROSTAGLANDINS. |
Thesagro : |
REPRODUCCION ANIMAL. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 02388naa a2200253 a 4500 001 1036963 005 2019-11-25 008 2002 bl uuuu u00u1 u #d 024 7 $a10.1017/S135772980005270X$2DOI 100 1 $aCAVESTANY, D. 245 $aResponse of beef heifers and non-suckling beef cows to different oestrous synchronization protocols.$h[electronic resource] 260 $c2002 300 $a. 500 $aArticle history: Received 25 September 2001/Accepted 15 January 2002. 520 $aAbstract: The objective was to evaluate different oestrous synchronization schemes in beef cattle under range conditions. In experiment 1, 202 heifers averaging 26 months of age were assigned randomly to three treatments: (a) GnRH-PG. (no. = 44) day 0 (D0): injection of GnRH; D7: injection of PGF2?; D0 to D25 oestrous detection (OD) and artificial insemination (AI); (b) OD-PG. (no. = 45) D0 to D4; OD + AI; D5: injection of PGF2?; D5 to D25 OD + AI; and (c)Ovsynch. (no. = 113) D0: injection of GnRH; D7: injection of PGF2?; D9: injection of GnRH and 16 h later AI at fixed time. In experiment 2, 318 non-suckling cows were assigned randomly to three treatments: (a) GnRH-PG. (no. = 106) D0: injection of GnRH; D7: injection of PGF2?; D0 to D25 OD + AI; (b) GnRH-MAP-PG. (no. = 106) D0: injection of a GnRH analogue and insertion of an intravaginal sponge impregnated with 250 mg of medroxyprogesterone acetate; D7: injection of PGF2? and sponge withdrawal; D0 to D25 OD + AI; (c) controls. (no. = 106) OD and AI. The experimental period lasted 25 days and, with exception of the Ovsynch treatment, oestrous detection was carried out twice a day (a.m./p.m.) and inseminations performed 12 h later. The pregnancy rates assessed by ultrasonography 30 days after AI were: experiment 1: (a) 30·0%; (b) 28·6% and (c) 62·3% (P < 0·05); experiment 2: (a) 60·2%; (b) 57·8% and (c) 45·5% (P < 0·05). It is concluded that in heifers and non-suckling cows, oestrous synchronization treatments result in higher pregnancy rates. In non-suckling cows, the addition of a progestagen did not improve the response. 650 $aREPRODUCCION ANIMAL 653 $aBEEF CATTLE 653 $aGnRH 653 $aOESTRUS 653 $aPROSTAGLANDINS 700 1 $aNEGRIN, N. 700 1 $aNEGRIN, R. 700 1 $aGROTH, J.F. 773 $tAnimal Science, 2002, Volume 74, Issue 3, Pages 547-552.
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INIA La Estanzuela (LE) |
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
06/12/2019 |
Actualizado : |
05/09/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
BELLÉ, C.; RAMOS, R.F.; GABRIEL, M.; KASPARY, T. E.; DE BRIDA, A.L. |
Afiliación : |
TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Colletotrichum gloeosporioides causing leaf anthracnose on Oxalis corniculata in Brazil. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Australasian Plant Disease Notes, 1 December 2019, Volume 14, Issue 1, Article number 36. OPEN ACCESS. DOI: https://doi.org/10.1007/s13314-019-0367-0 |
DOI : |
10.1007/s13314-019-0367-0 |
Idioma : |
Inglés |
Notas : |
Article history: Received: 9 July 2019 /Accepted: 12 November 2019. |
Palabras claves : |
CREEPING WOODSORREL; FUNGAL PATHOGEN; LEAF SPOTS; OCURRENCE. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16706/1/s13314-019-0367-0.pdf
https://link.springer.com/content/pdf/10.1007/s13314-019-0367-0.pdf
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Marc : |
LEADER 00834naa a2200229 a 4500 001 1060509 005 2022-09-05 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1007/s13314-019-0367-0$2DOI 100 1 $aBELLÉ, C. 245 $aColletotrichum gloeosporioides causing leaf anthracnose on Oxalis corniculata in Brazil.$h[electronic resource] 260 $c2019 500 $aArticle history: Received: 9 July 2019 /Accepted: 12 November 2019. 653 $aCREEPING WOODSORREL 653 $aFUNGAL PATHOGEN 653 $aLEAF SPOTS 653 $aOCURRENCE 700 1 $aRAMOS, R.F. 700 1 $aGABRIEL, M. 700 1 $aKASPARY, T. E. 700 1 $aDE BRIDA, A.L. 773 $tAustralasian Plant Disease Notes, 1 December 2019, Volume 14, Issue 1, Article number 36. OPEN ACCESS. DOI: https://doi.org/10.1007/s13314-019-0367-0
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