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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
21/02/2014 |
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Actualizado : |
22/02/2014 |
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Autor : |
Sindhøj, E. |
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Afiliación : |
Swedish University of Agricultural Sciences |
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Título : |
Elevated atmospheric in a semi-natural grassland : root dynamics, decomposition and soil balances |
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Fecha de publicación : |
2001 |
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Fuente / Imprenta : |
Uppsala: SLU, 2001. |
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Páginas : |
[90] p |
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Serie : |
Acta Universitatis Agriculturae Sueciae : Agraria |
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Idioma : |
Español |
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Notas : |
Appendixes: Root dynamics in a semi-natural grassland in relation to atmospheric carbon dioxide enrichment, soil water and shoot biomass / E. Sindhøj, [et al.]. Plant and Soil 223:253-263, 2000. - Above-ground plant production under elevated carbon dioxide in a Swedish semi-natural grassland / M. Marissink, R. Pettersson, E. Sindhøj. - Root biomass, production and dynamics in a semi-natural grassland exposed to elevated atmospheric CO2 / E. Sindhøj, [et al.]. - Projections of <30=thirty>-year soil carbon balances for a semi-natural grassland under elevated CO2 based on measured root decomposability / E. Sindhøj, [et al.] |
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Palabras claves : |
BALANCE DEL CARBONO; CAMBIO GLOBAL; CICLO DEL CARBONO; MANTILLO; PASTURAS; SECUESTRO DEL CARBONO. |
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Thesagro : |
ENRIQUECIMIENTO EN GAS CARBONICO; PASTIZAL MIXTO. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 01337nam a2200229 a 4500
001 1035909
005 2014-02-22
008 2001 bl uuuu u00u1 u #d
100 1 $aSINDHØJ, E.
245 $aElevated atmospheric in a semi-natural grassland$broot dynamics, decomposition and soil balances
260 $aUppsala: SLU$c2001
300 $a[90] p
490 $aActa Universitatis Agriculturae Sueciae : Agraria
500 $aAppendixes: Root dynamics in a semi-natural grassland in relation to atmospheric carbon dioxide enrichment, soil water and shoot biomass / E. Sindhøj, [et al.]. Plant and Soil 223:253-263, 2000. - Above-ground plant production under elevated carbon dioxide in a Swedish semi-natural grassland / M. Marissink, R. Pettersson, E. Sindhøj. - Root biomass, production and dynamics in a semi-natural grassland exposed to elevated atmospheric CO2 / E. Sindhøj, [et al.]. - Projections of <30=thirty>-year soil carbon balances for a semi-natural grassland under elevated CO2 based on measured root decomposability / E. Sindhøj, [et al.]
650 $aENRIQUECIMIENTO EN GAS CARBONICO
650 $aPASTIZAL MIXTO
653 $aBALANCE DEL CARBONO
653 $aCAMBIO GLOBAL
653 $aCICLO DEL CARBONO
653 $aMANTILLO
653 $aPASTURAS
653 $aSECUESTRO DEL CARBONO
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Registro original : |
INIA La Estanzuela (LE) |
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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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