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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
05/12/2023 |
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Actualizado : |
24/07/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
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Autor : |
MORALES-PIÑEYRUA, J.; BOBADILLA, P.E.; ALCANTARA, I.; DE TORRES, E. |
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Afiliación : |
JESSICA TATIANA MORALES PIÑEYRUA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO ERNESTO BOBADILLA, Universidad de la República, Facultad de Veterinaria, Unidad de Bioestadística Departamento de Salud Pública Veterinaria, Montevideo, Uruguay; IGNACIO ALCANTARA, Universidad de la República, Facultad de Veterinaria, Unidad de Bioestadística Departamento de Salud Pública Veterinaria, Montevideo, Uruguay; ELENA DE TORRES, Universidad de la República, Facultad de Veterinaria, Campo Experimental N.°2, San José, Uruguay. |
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Título : |
Relationship between strains of Holstein cows, feeding strategies and udder health. [Relación entre el biotipo de vacas Holando, la estrategia de alimentación y la salud de ubre]. [Relação entre o biótipo de vacas Holando, a estratégia de alimentação e a saúde do úbere]. |
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Complemento del título : |
Animal production and pastures. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Agrociencia Uruguay, 2023, Vol.27, e1150. https://doi.org/10.31285/AGRO.27.1150 -- OPEN ACCESS. |
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ISSN : |
2730-5066 |
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DOI : |
10.31285/AGRO.27.1150 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 29 Nov 2022; Accepted 15 Jun 2023; Published 10 Jul 2023. -- Editor: Laura Astigarraga, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. -- Correspondence: Jéssica Tatiana Morales-Piñeyrúa, email: jmorales@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ ) |
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Contenido : |
ABSTRACT.- Mastitis frequency could be affected by animal and environmental conditions such as dairy cow genetics and feeding strategies. Thus, the objective of this study was to analyze the probability of clinical mastitis and somatic cell count (SCC) for New Zealand (NZ) and North American (NA) Holstein-Friesian cows maintained on two different feeding strategies (pasture or mixed). A total of 120 cows from the experimental dairy farm of the National Agricultural and Livestock Re-search Institute (INIA, by its Spanish acronym) (Colonia, Uruguay) were grouped into four groups derived from the combination of two feeding strategies: Grass Maximum or Grass Fixed, and two Holstein strains: NZ or NA (n=30). Clinical mastitis and SCC were evaluated monthly during a whole lactation period. There was an interaction between the Holstein strains and parity for clinical mastitis (P=0.04). The NA primiparous cows were the least likely to suffer clinical mastitis (OR: 0.003), while NA multiparous cows were the most likely to show clinical mastitis (OR: 0.12). The NZ cows reported intermediate values of OR (primiparous: 0.082, multiparous: 0.066). Feeding strategies did not affect clinical mastitis or SCC. Similar SCC was found for NZ and NA strains. In conclusion, regardless of the feeding strategy, the probability of clinical mastitis differed by the genetic origin of the Holstein cows. However, this difference was influenced by parity. The SCC was not influenced by the Holstein strain or the feeding strategy. ---------- RESUMEN.- Factores relacionados con el animal y el ambiente pueden afectar la frecuencia de mastitis, siendo la genética y la estrategia de alimentación algunos de dichos factores. El objetivo de este estudio fue analizar la frecuencia de mastitis clínica y los recuentos de células somáticas (RCS) de vacas Holando de dos biotipos, Norteamericano (NA) y Neozelandés (NZ), bajo dos estrategias de alimentación (pastura o mixto). En la Unidad Experimental de Lechería de INIA La Estanzuela (Colonia, Uruguay) fueron agrupadas 120 vacas en 4 tratamientos según la combinación de biotipo y estrategia de alimentación (n=30). La cantidad de vacas con mastitis clínica y los RCS fueron registrados mensualmente durante una lactación. Hubo una interacción entre el biotipo y la paridad de las vacas (primíparas y multíparas) (P=0,04) para la frecuencia de mastitis. Vacas primíparas NA presentaron menor probabilidad de presentar mastitis clínica (ODR: 0,003). Por el contrario, las vacas multíparas NA fueron las que presentaron mayor probabilidad de experimentar mastitis clínica (ODR: 0,12), mientras que las vacas de origen NZ mostraron valores intermedios (ODR primíparas: 0,082; ODR multíparas: 0,066). La estrategia de alimentación no afectó la frecuencia de mastitis ni los RCS. Tampoco el biotipo afectó el RCS. En conclusión, sin importar la estrategia de alimentación, la frecuencia de mastitis clínica fue diferente según el biotipo, pero estas diferencias fueron influenciadas por el número de partos de los animales. Los RCS no fueron afectados por la estrategia de alimentación o el biotipo animal. ---------- RESUMO.- A genética e os sistemas de alimentação são fatores que afetam a incidência de mastite. Portanto, o objetivo deste estudo foi analisar a incidência de mastite clínica e a contagem de células somáticas (CCS) de vacas holandesas de dois biótipos, norte-americana (NA) e neozelandês (NZ), sob dois sistemas de alimentação (pastejo fixo ou máximo). Na Unidade Experimental do INIA La Estanzuela (Colonia, Uruguay) 120 vacas foram distribuídas em 4 tratamentos de acordo com a combinação de biótipo e alimentação (n = 30). O número de vacas com mastite clínica e a CSS foram registrados mensalmente durante uma lactação. Houve interação entre o biótipo e a paridade das vacas (P = 0,04) na frequência de mastite. Vacas primíparas NA apresentaram menor probabilidade de apresentarem mastite clínica (ODR: 0,003). Em contraste, as vacas multíparas NA tiveram a maior probabilidade de experimentar mastite clínica (ODR: 0,12), sendo as vacas de origem NZ os animais com valores intermédios (ODR primíparas: 0,082; ODR multíparas: 0,066). O sistema de alimentação não afetou a frequência de mastite ou CCS. O biótipo também não afetou a CCS. Em conclusão, independente do sistema de alimentação, a frequência de mastite foi diferente de acordo com o biótipo, mas essas diferenças foram influenciadas pela paridade dos animais. A CCS não foi afetada pelo sistema de alimentação ou biótipo animal. @Copyright (c) 2023 Agrociencia Uruguay. MenosABSTRACT.- Mastitis frequency could be affected by animal and environmental conditions such as dairy cow genetics and feeding strategies. Thus, the objective of this study was to analyze the probability of clinical mastitis and somatic cell count (SCC) for New Zealand (NZ) and North American (NA) Holstein-Friesian cows maintained on two different feeding strategies (pasture or mixed). A total of 120 cows from the experimental dairy farm of the National Agricultural and Livestock Re-search Institute (INIA, by its Spanish acronym) (Colonia, Uruguay) were grouped into four groups derived from the combination of two feeding strategies: Grass Maximum or Grass Fixed, and two Holstein strains: NZ or NA (n=30). Clinical mastitis and SCC were evaluated monthly during a whole lactation period. There was an interaction between the Holstein strains and parity for clinical mastitis (P=0.04). The NA primiparous cows were the least likely to suffer clinical mastitis (OR: 0.003), while NA multiparous cows were the most likely to show clinical mastitis (OR: 0.12). The NZ cows reported intermediate values of OR (primiparous: 0.082, multiparous: 0.066). Feeding strategies did not affect clinical mastitis or SCC. Similar SCC was found for NZ and NA strains. In conclusion, regardless of the feeding strategy, the probability of clinical mastitis differed by the genetic origin of the Holstein cows. However, this difference was influenced by parity. The SCC was not influenced by the Holstein strain... Presentar Todo |
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Palabras claves : |
Calidad de leche; Conformação da úbere; Conformación de ubre; Grazed pasture; Milk quality; Pastagem; Pastoreo; Qualidade da leite; SISTEMA LECHERO - INIA; Udder conformation. |
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Asunto categoría : |
L02 Alimentación animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17299/1/2730-5066-1150.pdf
http://www.ainfo.inia.uy/digital/bitstream/item/17422/1/AGRO.27.1150.pdf
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Marc : |
LEADER 06231naa a2200313 a 4500
001 1064379
005 2023-07-24
008 2023 bl uuuu u00u1 u #d
022 $a2730-5066
024 7 $a10.31285/AGRO.27.1150$2DOI
100 1 $aMORALES-PIÑEYRUA, J.
245 $aRelationship between strains of Holstein cows, feeding strategies and udder health. [Relación entre el biotipo de vacas Holando, la estrategia de alimentación y la salud de ubre]. [Relação entre o biótipo de vacas Holando, a estratégia de alimentação e a saúde do úbere].$h[electronic resource]
260 $c2023
500 $aArticle history: Received 29 Nov 2022; Accepted 15 Jun 2023; Published 10 Jul 2023. -- Editor: Laura Astigarraga, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. -- Correspondence: Jéssica Tatiana Morales-Piñeyrúa, email: jmorales@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ )
520 $aABSTRACT.- Mastitis frequency could be affected by animal and environmental conditions such as dairy cow genetics and feeding strategies. Thus, the objective of this study was to analyze the probability of clinical mastitis and somatic cell count (SCC) for New Zealand (NZ) and North American (NA) Holstein-Friesian cows maintained on two different feeding strategies (pasture or mixed). A total of 120 cows from the experimental dairy farm of the National Agricultural and Livestock Re-search Institute (INIA, by its Spanish acronym) (Colonia, Uruguay) were grouped into four groups derived from the combination of two feeding strategies: Grass Maximum or Grass Fixed, and two Holstein strains: NZ or NA (n=30). Clinical mastitis and SCC were evaluated monthly during a whole lactation period. There was an interaction between the Holstein strains and parity for clinical mastitis (P=0.04). The NA primiparous cows were the least likely to suffer clinical mastitis (OR: 0.003), while NA multiparous cows were the most likely to show clinical mastitis (OR: 0.12). The NZ cows reported intermediate values of OR (primiparous: 0.082, multiparous: 0.066). Feeding strategies did not affect clinical mastitis or SCC. Similar SCC was found for NZ and NA strains. In conclusion, regardless of the feeding strategy, the probability of clinical mastitis differed by the genetic origin of the Holstein cows. However, this difference was influenced by parity. The SCC was not influenced by the Holstein strain or the feeding strategy. ---------- RESUMEN.- Factores relacionados con el animal y el ambiente pueden afectar la frecuencia de mastitis, siendo la genética y la estrategia de alimentación algunos de dichos factores. El objetivo de este estudio fue analizar la frecuencia de mastitis clínica y los recuentos de células somáticas (RCS) de vacas Holando de dos biotipos, Norteamericano (NA) y Neozelandés (NZ), bajo dos estrategias de alimentación (pastura o mixto). En la Unidad Experimental de Lechería de INIA La Estanzuela (Colonia, Uruguay) fueron agrupadas 120 vacas en 4 tratamientos según la combinación de biotipo y estrategia de alimentación (n=30). La cantidad de vacas con mastitis clínica y los RCS fueron registrados mensualmente durante una lactación. Hubo una interacción entre el biotipo y la paridad de las vacas (primíparas y multíparas) (P=0,04) para la frecuencia de mastitis. Vacas primíparas NA presentaron menor probabilidad de presentar mastitis clínica (ODR: 0,003). Por el contrario, las vacas multíparas NA fueron las que presentaron mayor probabilidad de experimentar mastitis clínica (ODR: 0,12), mientras que las vacas de origen NZ mostraron valores intermedios (ODR primíparas: 0,082; ODR multíparas: 0,066). La estrategia de alimentación no afectó la frecuencia de mastitis ni los RCS. Tampoco el biotipo afectó el RCS. En conclusión, sin importar la estrategia de alimentación, la frecuencia de mastitis clínica fue diferente según el biotipo, pero estas diferencias fueron influenciadas por el número de partos de los animales. Los RCS no fueron afectados por la estrategia de alimentación o el biotipo animal. ---------- RESUMO.- A genética e os sistemas de alimentação são fatores que afetam a incidência de mastite. Portanto, o objetivo deste estudo foi analisar a incidência de mastite clínica e a contagem de células somáticas (CCS) de vacas holandesas de dois biótipos, norte-americana (NA) e neozelandês (NZ), sob dois sistemas de alimentação (pastejo fixo ou máximo). Na Unidade Experimental do INIA La Estanzuela (Colonia, Uruguay) 120 vacas foram distribuídas em 4 tratamentos de acordo com a combinação de biótipo e alimentação (n = 30). O número de vacas com mastite clínica e a CSS foram registrados mensalmente durante uma lactação. Houve interação entre o biótipo e a paridade das vacas (P = 0,04) na frequência de mastite. Vacas primíparas NA apresentaram menor probabilidade de apresentarem mastite clínica (ODR: 0,003). Em contraste, as vacas multíparas NA tiveram a maior probabilidade de experimentar mastite clínica (ODR: 0,12), sendo as vacas de origem NZ os animais com valores intermédios (ODR primíparas: 0,082; ODR multíparas: 0,066). O sistema de alimentação não afetou a frequência de mastite ou CCS. O biótipo também não afetou a CCS. Em conclusão, independente do sistema de alimentação, a frequência de mastite foi diferente de acordo com o biótipo, mas essas diferenças foram influenciadas pela paridade dos animais. A CCS não foi afetada pelo sistema de alimentação ou biótipo animal. @Copyright (c) 2023 Agrociencia Uruguay.
653 $aCalidad de leche
653 $aConformação da úbere
653 $aConformación de ubre
653 $aGrazed pasture
653 $aMilk quality
653 $aPastagem
653 $aPastoreo
653 $aQualidade da leite
653 $aSISTEMA LECHERO - INIA
653 $aUdder conformation
700 1 $aBOBADILLA, P.E.
700 1 $aALCANTARA, I.
700 1 $aDE TORRES, E.
773 $tAgrociencia Uruguay, 2023, Vol.27, e1150. https://doi.org/10.31285/AGRO.27.1150 -- OPEN ACCESS.
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
08/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 1 |
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Autor : |
SYVERTSEN, J.P.; GOÑI, C.; OTERO, A. |
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Afiliación : |
J. P. SYVERTSEN, University of Florida, United States; CARMEN TERESITA GOÑI ALTUNA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO RICARDO OTERO CAMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Fruit load and canopy shading affect leaf characteristics and net gas exchange of 'Spring' navel orange trees. |
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Fecha de publicación : |
2003 |
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Fuente / Imprenta : |
Tree Physiology, September 2003, Volume 23, Issue 13, Pages 899-906. OPEN ACCESS. |
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ISSN : |
0829-318X |
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DOI : |
10.1093/treephys/23.13.899 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received December 11, 2002 / Accepted March 8, 2003 / Published online August 1, 2003. |
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Contenido : |
ABSTRACT.
Five-year-old 'Spring' navel (Citrus sinensis (L.) Osbeck) orange trees were completely defruited, 50% defruited or left fully laden to study effects of fruit load on concentrations of nitrogen (N) and carbohydrate, net assimilation of CO2 (Ac) and stomatal conductance (g s) of mature leaves on clear winter days just before fruit harvest. Leaves on defruited trees were larger, had higher starch concentrations and greater leaf dry mass per area (LDMa) than leaves on fruited trees. Both Ac and gs were more than 40% lower in sunlit leaves on defruited trees than in sunlit leaves on trees with fruit. Leaves immediately adjacent to fruit were smaller, had lower leaf nitrogen and carbohydrate concentrations, lower LDMa and lower Ac than leaves on non-fruiting branches of the same trees. Removing half the crop increased individual fruit mass, but reduced fruit color development. Half the trees were shaded with 50% shade cloth for 4 months before harvest to determine the effects of lower leaf temperature (T1) and leaf-to-air vapor pressure difference on leaf responses. On relatively warm days when sunlit T1 > 25°C, shade increased Ac and gs, but had no effect on the ratio of internal to ambient CO2 (C i/Ca) concentration in leaves, implying that high mesophyll temperatures in sunlit leaves were more important than gs in limiting Ac. Sunlit leaves were more photoinhibited than shaded leaves on cooler days when T1 < 25°C. Shade decreased total soluble sugar concentrations in leaves, but had no effect on leaf starch concentrations. Shading had no effects on canopy volume, yield or fruit size, but shaded fruit developed better external color than sun-exposed fruit. Overall, the presence of a normal fruit crop resulted in lower foliar carbohydrate concentrations and higher Ac compared with defruited trees, except on warm days when Ac was reduced by high leaf temperatures.
Copyright © 2003, Oxford University Press MenosABSTRACT.
Five-year-old 'Spring' navel (Citrus sinensis (L.) Osbeck) orange trees were completely defruited, 50% defruited or left fully laden to study effects of fruit load on concentrations of nitrogen (N) and carbohydrate, net assimilation of CO2 (Ac) and stomatal conductance (g s) of mature leaves on clear winter days just before fruit harvest. Leaves on defruited trees were larger, had higher starch concentrations and greater leaf dry mass per area (LDMa) than leaves on fruited trees. Both Ac and gs were more than 40% lower in sunlit leaves on defruited trees than in sunlit leaves on trees with fruit. Leaves immediately adjacent to fruit were smaller, had lower leaf nitrogen and carbohydrate concentrations, lower LDMa and lower Ac than leaves on non-fruiting branches of the same trees. Removing half the crop increased individual fruit mass, but reduced fruit color development. Half the trees were shaded with 50% shade cloth for 4 months before harvest to determine the effects of lower leaf temperature (T1) and leaf-to-air vapor pressure difference on leaf responses. On relatively warm days when sunlit T1 > 25°C, shade increased Ac and gs, but had no effect on the ratio of internal to ambient CO2 (C i/Ca) concentration in leaves, implying that high mesophyll temperatures in sunlit leaves were more important than gs in limiting Ac. Sunlit leaves were more photoinhibited than shaded leaves on cooler days when T1 < 25°C. Shade decreased total soluble sugar concentrations in... Presentar Todo |
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Palabras claves : |
Carbohydrates; Chlorophyll fluorescence; Leaf CO2 assimilation; LVPD; Photoinhibition; Soluble sugars; Starch; Stomatal conductance. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02885naa a2200277 a 4500
001 1012763
005 2019-10-08
008 2003 bl uuuu u00u1 u #d
022 $a0829-318X
024 7 $a10.1093/treephys/23.13.899$2DOI
100 1 $aSYVERTSEN, J.P.
245 $aFruit load and canopy shading affect leaf characteristics and net gas exchange of 'Spring' navel orange trees.$h[electronic resource]
260 $c2003
500 $aArticle history: Received December 11, 2002 / Accepted March 8, 2003 / Published online August 1, 2003.
520 $aABSTRACT. Five-year-old 'Spring' navel (Citrus sinensis (L.) Osbeck) orange trees were completely defruited, 50% defruited or left fully laden to study effects of fruit load on concentrations of nitrogen (N) and carbohydrate, net assimilation of CO2 (Ac) and stomatal conductance (g s) of mature leaves on clear winter days just before fruit harvest. Leaves on defruited trees were larger, had higher starch concentrations and greater leaf dry mass per area (LDMa) than leaves on fruited trees. Both Ac and gs were more than 40% lower in sunlit leaves on defruited trees than in sunlit leaves on trees with fruit. Leaves immediately adjacent to fruit were smaller, had lower leaf nitrogen and carbohydrate concentrations, lower LDMa and lower Ac than leaves on non-fruiting branches of the same trees. Removing half the crop increased individual fruit mass, but reduced fruit color development. Half the trees were shaded with 50% shade cloth for 4 months before harvest to determine the effects of lower leaf temperature (T1) and leaf-to-air vapor pressure difference on leaf responses. On relatively warm days when sunlit T1 > 25°C, shade increased Ac and gs, but had no effect on the ratio of internal to ambient CO2 (C i/Ca) concentration in leaves, implying that high mesophyll temperatures in sunlit leaves were more important than gs in limiting Ac. Sunlit leaves were more photoinhibited than shaded leaves on cooler days when T1 < 25°C. Shade decreased total soluble sugar concentrations in leaves, but had no effect on leaf starch concentrations. Shading had no effects on canopy volume, yield or fruit size, but shaded fruit developed better external color than sun-exposed fruit. Overall, the presence of a normal fruit crop resulted in lower foliar carbohydrate concentrations and higher Ac compared with defruited trees, except on warm days when Ac was reduced by high leaf temperatures. Copyright © 2003, Oxford University Press
653 $aCarbohydrates
653 $aChlorophyll fluorescence
653 $aLeaf CO2 assimilation
653 $aLVPD
653 $aPhotoinhibition
653 $aSoluble sugars
653 $aStarch
653 $aStomatal conductance
700 1 $aGOÑI, C.
700 1 $aOTERO, A.
773 $tTree Physiology, September 2003, Volume 23, Issue 13, Pages 899-906. OPEN ACCESS.
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