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| 45. |  | FOSSATTI, M.; ASTIGARRAGA, L.; ROMAN, L.; BARRIOS, C.; ÁLVAREZ, C.; BARAIBAR, N. De pasto a leche. Proyecto FPTA 351. Montevideo (UY): INIA, 2023. 59 p. (Serie FPTA-INIA; 100). Proyecto FPTA 351: "2020: de Pasto a Leche, mejora de los resultados económicos mediante el aumento de la producción de pasto en predios lecheros". -- Período de ejecución: Julio 2017 - Junio 2021. -- Institución ejecutora: FUCREA...| Biblioteca(s): INIA Las Brujas. |
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| 52. | | QUINTANS, G.; SCARSI, A.; VELAZCO, J.I.; BANCHERO, G. Different forage allowances in the pre- and postpartum period and the production of beef cows: session 58; theatre 9. In: Annual Meeting of the European Federation of Animal Science (EAAP), 64., 2013, Nantes, FR. Book of abstracts... Wageningen, NL: WAP, 2013. p. 629. Resumen de presentación oral.| Biblioteca(s): INIA La Estanzuela; INIA Treinta y Tres. |
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| 58. | | BASANTE, S.; CAJARVILLE, C.; MORALES-PIÑEYRUA, J.; PLA, M.; ÁLVAREZ, C.; BERNEDA, E.; MENDOZA, A. Efecto del nivel de alimentación preparto sobre el reinicio de la actividad luteal posparto en vacas lecheras.[Effect of prepartum feeding level on the onset of postpartum luteal activity in dairy cows]. RF 7. In: Congreso Argentino de Producción Animal, 38., 2015. Resúmenes. Santa Rosa, La Pampa, AR: ASAS/AAPA, 2015. p.7. (Revista Argentina de Producción Animal; 2015; 35; supl.1).| Biblioteca(s): INIA La Estanzuela. |
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| 59. | | MARTÍNEZ, R.; LA MANNA, A.; ROMAN, L.; PLA, M.; PALLADINO, R.A. Efecto del uso de medidas de mitigación del estrés térmico sobre la producción y composición de la leche en vacas
en lactancia avanzada.[Effect of heat stress mitigation strategies on production and milk composition in late lactation dairy cows]. SP 1. In: Congreso Argentino de Producción Animal, 38., 2015. Resúmenes. Santa Rosa, La Pampa, AR: ASAS/AAPA, 2015. p. 83. (Revista Argentina de Producción Animal; 2015; 35; supl.1).| Biblioteca(s): INIA La Estanzuela. |
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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 : |
17/10/2014 |
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Actualizado : |
14/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 2 |
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Autor : |
CAVESTANY, D.; GALINA, C.S. |
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Afiliación : |
DANIEL CAVESTANY BOCKING, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CS GALINA, Facultad de Medicina Veterinaria y Zootecnia. Universidad Nacional Autónoma de México. México, México. |
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Título : |
Evaluation of an artificial insemination programme in a seasonal breeding dairy systems through milk progesterone. |
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Fecha de publicación : |
2001 |
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Fuente / Imprenta : |
Reproduction in Domestic Animal, v.36.p.79-84, 2001. |
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DOI : |
10.1046/j.1439-0531.2001.00255.x |
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Idioma : |
Inglés |
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Contenido : |
Abstract
In order to evaluate an artificial insemination programme and reproductive efficiency of dairy herds in Uruguay, a survey was conducted with five dairy farms, utilizing a total of 768 lactating Holstein cows. Precision of oestrous detection was assessed by one milk progesterone sample taken on day of breeding and was 11.1%. Two additional samples taken at day 10 and 23 were used to confirm ovulation and early pregnancy. Accuracy of pregnancy estimation by milk progesterone was 70.4%. Reproductive efficiency was determined by the analysis of records. Average intervals from calving to first service were 101 days and to conception 132 days and these were affected by parity, body weight and body condition at calving, but not at breeding, or by milk production. Oestrous detection rates and pregnancy rates were 37.5 and 15.6%, respectively. It was concluded that losses in reproductive efficiency in dairy farms of Uruguay in a seasonal artificial insemination programme were mainly due to unobserved heats, rather than incorrect oestrous detection. |
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Palabras claves : |
EFICIENCIA REPRODUCTIVA; REBAÑOS LECHEROS; SISTEMAS LECHEROS. |
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Thesagro : |
INSEMINACIÓN ARTIFICIAL; LECHERÍA; PROGESTERONA; URUGUAY. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 01765naa a2200229 a 4500
001 1051165
005 2019-10-14
008 2001 bl uuuu u00u1 u #d
024 7 $a10.1046/j.1439-0531.2001.00255.x$2DOI
100 1 $aCAVESTANY, D.
245 $aEvaluation of an artificial insemination programme in a seasonal breeding dairy systems through milk progesterone.
260 $c2001
520 $aAbstract In order to evaluate an artificial insemination programme and reproductive efficiency of dairy herds in Uruguay, a survey was conducted with five dairy farms, utilizing a total of 768 lactating Holstein cows. Precision of oestrous detection was assessed by one milk progesterone sample taken on day of breeding and was 11.1%. Two additional samples taken at day 10 and 23 were used to confirm ovulation and early pregnancy. Accuracy of pregnancy estimation by milk progesterone was 70.4%. Reproductive efficiency was determined by the analysis of records. Average intervals from calving to first service were 101 days and to conception 132 days and these were affected by parity, body weight and body condition at calving, but not at breeding, or by milk production. Oestrous detection rates and pregnancy rates were 37.5 and 15.6%, respectively. It was concluded that losses in reproductive efficiency in dairy farms of Uruguay in a seasonal artificial insemination programme were mainly due to unobserved heats, rather than incorrect oestrous detection.
650 $aINSEMINACIÓN ARTIFICIAL
650 $aLECHERÍA
650 $aPROGESTERONA
650 $aURUGUAY
653 $aEFICIENCIA REPRODUCTIVA
653 $aREBAÑOS LECHEROS
653 $aSISTEMAS LECHEROS
700 1 $aGALINA, C.S.
773 $tReproduction in Domestic Animal$gv.36.p.79-84, 2001.
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