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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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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha : |
17/04/2015 |
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Actualizado : |
11/02/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
BANCHERO, G.; MILTON, J.T.B.; LINDSAY, D.R.; MARTIN, G.B.; QUINTANS, G. |
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Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Colostrum production in ewes: a review of regulation mechanisms and of energy supply. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Animal, v. 9, n. 5, p. 831-837. 2015. |
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ISSN : |
1751-732X. |
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DOI : |
10.1017/S1751731114003243. |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 19 June 2014; Accepted 1 December 2014; published 2015. |
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Contenido : |
In sheep production systems based on extensive grazing, neonatal mortality often reaches 15% to 20% of lambs born, and the mortality rate can be doubled in the case of multiple births. An important contributing factor is the nutrition of the mother because it affects the amount of colostrum available at birth. Ewes carrying multiple lambs have higher energy requirements than ewes carrying a single lamb and this problem is compounded by limitations to voluntary feed intake as the gravid uterus compresses the rumen. This combination of factors means that the nutritional requirements of the ewe carrying multiple lambs can rarely be met
by the supply of pasture alone. This problem can overcome by supplementation with energy during the last week of pregnancy, a treatment that increases colostrum production and also reduces colostrum viscosity, making it easier for the neonatal lamb to suck.
In addition, litter size and nutrition both accelerate the decline in concentration of circulating progesterone that, in turn, triggers the onsets of both birth and lactogenesis, and thus ensures the synchrony of these two events. Furthermore, the presence of colostrum in the gut of the lamb increases its ability to recognize its mother, and thus improves mother–young bonding. Most cereal grains that are rich in energy in the form of starch, when used as supplements in late pregnancy will increase colostrum production by 90% to 185% above control (unsupplemented) values. Variation among types of cereal grain in the response they induce may be due to differences in the amount of starch digested post-ruminally. As a percentage of grain dry matter intake, the amount of starch entering the lower digestive tract is 14% for maize, 8.5% for barley and 2% for oats. Supplements of high quality protein from legumes and oleiferous seeds can also increase colostrum production but they are less effective than cereal grains. In conclusion, short-term supplementation before parturition, particularly with energy-rich concentrates, can improve
colostrum production, help meet the energy and immunological requirements for new-born lambs, and improve lamb survival. MenosIn sheep production systems based on extensive grazing, neonatal mortality often reaches 15% to 20% of lambs born, and the mortality rate can be doubled in the case of multiple births. An important contributing factor is the nutrition of the mother because it affects the amount of colostrum available at birth. Ewes carrying multiple lambs have higher energy requirements than ewes carrying a single lamb and this problem is compounded by limitations to voluntary feed intake as the gravid uterus compresses the rumen. This combination of factors means that the nutritional requirements of the ewe carrying multiple lambs can rarely be met
by the supply of pasture alone. This problem can overcome by supplementation with energy during the last week of pregnancy, a treatment that increases colostrum production and also reduces colostrum viscosity, making it easier for the neonatal lamb to suck.
In addition, litter size and nutrition both accelerate the decline in concentration of circulating progesterone that, in turn, triggers the onsets of both birth and lactogenesis, and thus ensures the synchrony of these two events. Furthermore, the presence of colostrum in the gut of the lamb increases its ability to recognize its mother, and thus improves mother–young bonding. Most cereal grains that are rich in energy in the form of starch, when used as supplements in late pregnancy will increase colostrum production by 90% to 185% above control (unsupplemented) values. Variation among types ... Presentar Todo |
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Palabras claves : |
CEREALS; COLOSTRUM; DISMINUCIÓN DE CONCENTRACIÓN DE PROGESTERONA; GESTACIÓN; GESTACIÓN MÚLTIPLE; LACTOGÉNESIS; MOMENTO DE PARTO; MORTALIDAD NEONATAL DE CORDEROS; PRODUCCIÓN DE CALOSTRO; PROTEIN; REQUERIMIENTOS DE CALOSTRO; SHEEP; STARCH; SUPERVIVENCIA NEONATAL DE CORDEROS; SUPLEMENTACIÓN CON GRANO; SUPLEMENTACIÓN CON PASTOREO; SUPLEMENTACIÓN ENERGÉTICA; SUPLEMENTACIÓN PREPARTO; SUPLEMENTACIÓN PROTEICA. |
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Thesagro : |
CAMPO NATURAL; FISIOLOGÍA ANIMAL; PRODUCCIÓN OVINA. |
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Asunto categoría : |
--
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 03629naa a2200469 a 4500
001 1052550
005 2019-02-11
008 2015 bl uuuu u00u1 u #d
022 $a1751-732X.
024 7 $a10.1017/S1751731114003243.$2DOI
100 1 $aBANCHERO, G.
245 $aColostrum production in ewes$ba review of regulation mechanisms and of energy supply.$h[electronic resource]
260 $c2015
500 $aArticle history: Received 19 June 2014; Accepted 1 December 2014; published 2015.
520 $aIn sheep production systems based on extensive grazing, neonatal mortality often reaches 15% to 20% of lambs born, and the mortality rate can be doubled in the case of multiple births. An important contributing factor is the nutrition of the mother because it affects the amount of colostrum available at birth. Ewes carrying multiple lambs have higher energy requirements than ewes carrying a single lamb and this problem is compounded by limitations to voluntary feed intake as the gravid uterus compresses the rumen. This combination of factors means that the nutritional requirements of the ewe carrying multiple lambs can rarely be met by the supply of pasture alone. This problem can overcome by supplementation with energy during the last week of pregnancy, a treatment that increases colostrum production and also reduces colostrum viscosity, making it easier for the neonatal lamb to suck. In addition, litter size and nutrition both accelerate the decline in concentration of circulating progesterone that, in turn, triggers the onsets of both birth and lactogenesis, and thus ensures the synchrony of these two events. Furthermore, the presence of colostrum in the gut of the lamb increases its ability to recognize its mother, and thus improves mother–young bonding. Most cereal grains that are rich in energy in the form of starch, when used as supplements in late pregnancy will increase colostrum production by 90% to 185% above control (unsupplemented) values. Variation among types of cereal grain in the response they induce may be due to differences in the amount of starch digested post-ruminally. As a percentage of grain dry matter intake, the amount of starch entering the lower digestive tract is 14% for maize, 8.5% for barley and 2% for oats. Supplements of high quality protein from legumes and oleiferous seeds can also increase colostrum production but they are less effective than cereal grains. In conclusion, short-term supplementation before parturition, particularly with energy-rich concentrates, can improve colostrum production, help meet the energy and immunological requirements for new-born lambs, and improve lamb survival.
650 $aCAMPO NATURAL
650 $aFISIOLOGÍA ANIMAL
650 $aPRODUCCIÓN OVINA
653 $aCEREALS
653 $aCOLOSTRUM
653 $aDISMINUCIÓN DE CONCENTRACIÓN DE PROGESTERONA
653 $aGESTACIÓN
653 $aGESTACIÓN MÚLTIPLE
653 $aLACTOGÉNESIS
653 $aMOMENTO DE PARTO
653 $aMORTALIDAD NEONATAL DE CORDEROS
653 $aPRODUCCIÓN DE CALOSTRO
653 $aPROTEIN
653 $aREQUERIMIENTOS DE CALOSTRO
653 $aSHEEP
653 $aSTARCH
653 $aSUPERVIVENCIA NEONATAL DE CORDEROS
653 $aSUPLEMENTACIÓN CON GRANO
653 $aSUPLEMENTACIÓN CON PASTOREO
653 $aSUPLEMENTACIÓN ENERGÉTICA
653 $aSUPLEMENTACIÓN PREPARTO
653 $aSUPLEMENTACIÓN PROTEICA
700 1 $aMILTON, J.T.B.
700 1 $aLINDSAY, D.R.
700 1 $aMARTIN, G.B.
700 1 $aQUINTANS, G.
773 $tAnimal$gv. 9, n. 5, p. 831-837. 2015.
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
01/11/2018 |
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Actualizado : |
07/11/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
ZARANTONELLI, L.; SUANES, A.; MENY, P.; BURONI, F.; SALVARREY,X.; BRIANO , C.; ASHFIELD, N.; SILVEIRA, C.S.; DUTRA, F.; EASTON, C.; FRAGA, M.; GIANNITTI, F.; HAMOND, C.; MACÍAS-RIOSECO, M.; MENÉNDEZ, C.; MORTOLA, A.; PICARDEAU, M. |
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Afiliación : |
LETICIA ZARANTONELLI, Laboratorio de Microbiología Molecular y Estructural, Institut Pasteur de Montevideo, Uruguay.; Unidad Mixta UMPI, Institut Pasteur de Montevideo; INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; ALEJANDRA SUANES, Departamento de Bacteriología, División Laboratorios Veterinarios "Miguel C. Rubino" Sede Central, Ministerio de Ganadería, Agricultura y Pesca, Uruguay.; PAULINA MENY, Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Uruguay.; FLORENCIA BURONI, División Laboratorios Veterinarios "Miguel C. Rubino" Laboratorio Regional Noroeste, Ministerio de Ganadería, Agricultura y Pesca, Uruguay.; XIMENA SALVARREY, Departamento de Bacteriología, División Laboratorios Veterinarios "Miguel C. Rubino". Sede Central, Ministerio de Ganadería, Agricultura y Pesca, Uruguay .; CAROLINA BRIANO, Departamento de Bacteriología, División Laboratorios Veterinarios "Miguel C. Rubino" Sede Central, Ministerio de Ganadería, Agricultura y Pesca, Uruguay .; NATALIA ASHFIELD4, Departamento de Bacteriología y Virologí, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Uruguay.; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO DUTRA, División Laboratorios Veterinarios "Miguel C. Rubino". Laboratorio Regional Este, Ministerio de Ganadería, Agricultura y Pesca, Uruguay.; CRISTINA EASTON, Departamento de Bacteriología, División Laboratorios Veterinarios "Miguel C. Rubino" Sede Central, Ministerio de Ganadería, Agricultura y Pesca, Uruguay.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAMILA HAMOND, Unidad Mixta UMPI, Institut Pasteur de Montevideo ; INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MELISSA MACÍAS RIOSECO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLARA MENÉNDEZ, Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Uruguay.; ALBERTO MORTOLA, Departamento de Bacteriología, División Laboratorios Veterinarios "Miguel C. Rubino" Sede Central, Ministerio de Ganadería, Agricultura y Pesca, Uruguay.; MATHIEU PICARDEAU, Institut Pasteur de Montevideo, Uruguay. / Institut Pasteur, France. |
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Título : |
Isolation of pathogenic Leptospira strains from naturally infected cattle in Uruguay reveals high serovar diversity, and uncovers a relevant risk for human leptospirosis. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
PLoS Neglected Tropical Diseases, September 2018, vol. 12, Issue 9, Article number e0006694. OPEN ACCESS. |
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DOI : |
10.1371/journal.pntd.0006694 |
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Idioma : |
Inglés |
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Notas : |
Article History: Received: February 8, 2018; Accepted: July 16, 2018; Published: September 13, 2018. |
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Contenido : |
Abstract:
Leptospirosis is a neglected zoonosis with worldwide distribution. The causative agents are spirochete bacteria of the Leptospira genus, displaying huge diversity of serovars, the identity of which is critical for effective diagnosis and vaccination purposes. Among many other mammalian species, Leptospira infects cattle, eliciting acute signs in calves, and chronic disease in adult animals often leading to abortions. In South America, and including in Uruguay, beef and dairy export are leading sources of national income. Despite the importance of bovine health, food safety, and bovine-related dissemination of leptospirosis to humans, extremely limited information is available as to the identity of Leptospira species and serovars infecting cattle in Uruguay and the South American subcontinent. Here we report a multicentric 3-year study resulting in the isolation and detailed characterization of 40 strains of Leptospira spp. obtained from infected cattle. Combined serologic and molecular typing identified these isolates as L. interrogans serogroup Pomona serovar Kennewicki (20 strains), L. interrogans serogroup Canicola serovar Canicola (1 strain), L. borgpetersenii serogroup Sejroe serovar Hardjo (10 strains) and L. noguchii (9 strains). The latter showed remarkable phenotypic and genetic variability, belonging to 6 distinct serogroups, including 3 that did not react with a large panel of reference serogrouping antisera. Approximately 20% of cattle sampled in the field were found to be shedding pathogenic Leptospira in their urine, uncovering a threat for public health that is being largely neglected. The two L. interrogans serovars that we isolated from cattle displayed identical genetic signatures to those of human isolates that had previously been obtained from leptospirosis patients. This report of local Leptospira strains shall improve diagnostic tools and the understanding of leptospirosis epidemiology in South America. These strains could also be used as new components within bacterin vaccines to protect against the pathogenic Leptospira strains that are actually circulating, a direct measure to reduce the risk of human leptospirosis.
© 2018 Zarantonelli et al. http://creativecommons.org/licenses/by/4.0/. MenosAbstract:
Leptospirosis is a neglected zoonosis with worldwide distribution. The causative agents are spirochete bacteria of the Leptospira genus, displaying huge diversity of serovars, the identity of which is critical for effective diagnosis and vaccination purposes. Among many other mammalian species, Leptospira infects cattle, eliciting acute signs in calves, and chronic disease in adult animals often leading to abortions. In South America, and including in Uruguay, beef and dairy export are leading sources of national income. Despite the importance of bovine health, food safety, and bovine-related dissemination of leptospirosis to humans, extremely limited information is available as to the identity of Leptospira species and serovars infecting cattle in Uruguay and the South American subcontinent. Here we report a multicentric 3-year study resulting in the isolation and detailed characterization of 40 strains of Leptospira spp. obtained from infected cattle. Combined serologic and molecular typing identified these isolates as L. interrogans serogroup Pomona serovar Kennewicki (20 strains), L. interrogans serogroup Canicola serovar Canicola (1 strain), L. borgpetersenii serogroup Sejroe serovar Hardjo (10 strains) and L. noguchii (9 strains). The latter showed remarkable phenotypic and genetic variability, belonging to 6 distinct serogroups, including 3 that did not react with a large panel of reference serogrouping antisera. Approximately 20% of cattle sampled in the fi... Presentar Todo |
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Palabras claves : |
SALUD ANIMAL. |
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Thesagro : |
LEPTOSPIRA; LEPTOSPIROSIS. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/11772/1/Zarantonelli-2018-Isolation-of-pathogenic-leptospira-1.pdf
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Marc : |
LEADER 03472naa a2200373 a 4500
001 1059268
005 2018-11-07
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pntd.0006694$2DOI
100 1 $aZARANTONELLI, L.
245 $aIsolation of pathogenic Leptospira strains from naturally infected cattle in Uruguay reveals high serovar diversity, and uncovers a relevant risk for human leptospirosis.
260 $c2018
500 $aArticle History: Received: February 8, 2018; Accepted: July 16, 2018; Published: September 13, 2018.
520 $aAbstract: Leptospirosis is a neglected zoonosis with worldwide distribution. The causative agents are spirochete bacteria of the Leptospira genus, displaying huge diversity of serovars, the identity of which is critical for effective diagnosis and vaccination purposes. Among many other mammalian species, Leptospira infects cattle, eliciting acute signs in calves, and chronic disease in adult animals often leading to abortions. In South America, and including in Uruguay, beef and dairy export are leading sources of national income. Despite the importance of bovine health, food safety, and bovine-related dissemination of leptospirosis to humans, extremely limited information is available as to the identity of Leptospira species and serovars infecting cattle in Uruguay and the South American subcontinent. Here we report a multicentric 3-year study resulting in the isolation and detailed characterization of 40 strains of Leptospira spp. obtained from infected cattle. Combined serologic and molecular typing identified these isolates as L. interrogans serogroup Pomona serovar Kennewicki (20 strains), L. interrogans serogroup Canicola serovar Canicola (1 strain), L. borgpetersenii serogroup Sejroe serovar Hardjo (10 strains) and L. noguchii (9 strains). The latter showed remarkable phenotypic and genetic variability, belonging to 6 distinct serogroups, including 3 that did not react with a large panel of reference serogrouping antisera. Approximately 20% of cattle sampled in the field were found to be shedding pathogenic Leptospira in their urine, uncovering a threat for public health that is being largely neglected. The two L. interrogans serovars that we isolated from cattle displayed identical genetic signatures to those of human isolates that had previously been obtained from leptospirosis patients. This report of local Leptospira strains shall improve diagnostic tools and the understanding of leptospirosis epidemiology in South America. These strains could also be used as new components within bacterin vaccines to protect against the pathogenic Leptospira strains that are actually circulating, a direct measure to reduce the risk of human leptospirosis. © 2018 Zarantonelli et al. http://creativecommons.org/licenses/by/4.0/.
650 $aLEPTOSPIRA
650 $aLEPTOSPIROSIS
653 $aSALUD ANIMAL
700 1 $aSUANES, A.
700 1 $aMENY, P.
700 1 $aBURONI, F.
700 1 $aSALVARREY,X.
700 1 $aBRIANO , C.
700 1 $aASHFIELD, N.
700 1 $aSILVEIRA, C.S.
700 1 $aDUTRA, F.
700 1 $aEASTON, C.
700 1 $aFRAGA, M.
700 1 $aGIANNITTI, F.
700 1 $aHAMOND, C.
700 1 $aMACÍAS-RIOSECO, M.
700 1 $aMENÉNDEZ, C.
700 1 $aMORTOLA, A.
700 1 $aPICARDEAU, M.
773 $tPLoS Neglected Tropical Diseases, September 2018, vol. 12, Issue 9, Article number e0006694. OPEN ACCESS.
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