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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
01/07/2020 |
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Actualizado : |
06/06/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SAVIAN, J.V.; SCHONS, R.M.T.; MEZZALIRA, J.C.; BARTH NETO, A.; NETO, G.F. DA SILVA; BENVENUTTI, M.A.; CARVALHO, P.C. DE F. |
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Afiliación : |
JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay // Grazing Ecology Research Group, Federal University of Rio Grande do Sul. RS, Brazil.; R.M.T. SCHONS, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brasil.; J. C. MEZZALIRA, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brasil.; A. BARTH NETO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brasil.; G. F. DA SILVA NETO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brasil.; Queenland Department of Agriculture and Fisheries, Australia.; P.C. DE F. CARVALHO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brasil. |
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Título : |
A comparison of two rotational stocking strategies on the foraging behaviour and herbage intake by grazing sheep. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Animal, 2020, Volume 14, issue 12, pp. 2503-2510. https://doi.org/10.1017/S1751731120001251 -- OPEN ACCESS. |
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ISSN : |
1751-7311 (Print); 1751-732X (Online). |
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DOI : |
10.1017/S1751731120001251 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 5 March 2018; Accepted 22 May 2020. Published online by Cambridge University Press: 16 June 2020. -- |
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Contenido : |
Abstract:
An understanding of the processes involved in grazing behaviour is a prerequisite for the design of efficient grassland management systems. The purpose of managing the grazing process is to identify sward structures that can maximize animal forage daily intake and optimize grazing time. Our aim was to evaluate the effect of different grazing management strategies on foraging behaviour and herbage intake by sheep grazing Italian ryegrass under rotational stocking. The experiment was carried out in 2015 in southern Brazil. The experimental design was a randomized complete block with two grazing management strategies and four replicates. The grazing management treatments were a traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and a ?Rotatinuous? stocking (RN) with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Male sheep with an average live weight of 32 ± 2.3 kg were used. As intended, the preand post-grazing sward heights were according to the treatments. The pre-grazing leaf/stem ratio of the Italian ryegrass pasture did not differ between treatments (P > 0.05) (~2.87), but the post-grazing leaf/stem ratio was greater (P < 0.001) in the RN than in the RT treatment (1.59 and 0.76, respectively). The percentage of the non-grazed area was greater (P < 0.01) in post-grazing for RN compared with RT treatment, with an average of 29.7% and 3.49%, respectively. Herbage nutritive value was greater for the RN than for the RT treatment, with greater CP and lower ADF and NDF contents. The total time spent grazing, ruminating
and resting did not differ between treatments (P > 0.05), with averages of 439, 167 and 85 min, respectively. The bite rate, feeding stations per min and steps per min by sheep were greater (P < 0.05) in the RN than in the RT treatment. The grazing time per hour and the bite rate were greater (P < 0.05) in the afternoon than in the morning in both treatments. The daily herbage intake by sheep grazing Italian ryegrass was greater (P < 0.05) in the RN than in the RT treatment (843.7 and 707.8 g
organic matter/sheep, respectively). Our study supports the idea that even though the grazing time was not affected by the grazing management strategies when the animal behaviour responses drive management targets, such as in ?Rotatinuous? stocking, the sheep herbage intake is maximized, and the grazing time is optimized. MenosAbstract:
An understanding of the processes involved in grazing behaviour is a prerequisite for the design of efficient grassland management systems. The purpose of managing the grazing process is to identify sward structures that can maximize animal forage daily intake and optimize grazing time. Our aim was to evaluate the effect of different grazing management strategies on foraging behaviour and herbage intake by sheep grazing Italian ryegrass under rotational stocking. The experiment was carried out in 2015 in southern Brazil. The experimental design was a randomized complete block with two grazing management strategies and four replicates. The grazing management treatments were a traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and a ?Rotatinuous? stocking (RN) with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Male sheep with an average live weight of 32 ± 2.3 kg were used. As intended, the preand post-grazing sward heights were according to the treatments. The pre-grazing leaf/stem ratio of the Italian ryegrass pasture did not differ between treatments (P > 0.05) (~2.87), but the post-grazing leaf/stem ratio was greater (P < 0.001) in the RN than in the RT treatment (1.59 and 0.76, respectively). The percentage of the non-grazed area was greater (P < 0.01) in post-grazing for RN compared with RT treatment, with an average of 29.7% and 3.49%, respectively. Herbage nutritive value was great... Presentar Todo |
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Palabras claves : |
GRAZING BEHAVIOUR; GRAZING MANAGEMENT; INTAKE RATE; ITALIAN RYEGRASS; SWARD STRUCTURE. |
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Asunto categoría : |
F62 Fisiología de la planta - Crecimiento y desarrollo |
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URL : |
https://www.sciencedirect.com/science/article/pii/S1751731120001251/pdf
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Marc : |
LEADER 03525naa a2200289 a 4500
001 1061176
005 2023-06-06
008 2020 bl uuuu u00u1 u #d
022 $a1751-7311 (Print); 1751-732X (Online).
024 7 $a10.1017/S1751731120001251$2DOI
100 1 $aSAVIAN, J.V.
245 $aA comparison of two rotational stocking strategies on the foraging behaviour and herbage intake by grazing sheep.$h[electronic resource]
260 $c2020
500 $aArticle history: Received 5 March 2018; Accepted 22 May 2020. Published online by Cambridge University Press: 16 June 2020. --
520 $aAbstract: An understanding of the processes involved in grazing behaviour is a prerequisite for the design of efficient grassland management systems. The purpose of managing the grazing process is to identify sward structures that can maximize animal forage daily intake and optimize grazing time. Our aim was to evaluate the effect of different grazing management strategies on foraging behaviour and herbage intake by sheep grazing Italian ryegrass under rotational stocking. The experiment was carried out in 2015 in southern Brazil. The experimental design was a randomized complete block with two grazing management strategies and four replicates. The grazing management treatments were a traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and a ?Rotatinuous? stocking (RN) with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Male sheep with an average live weight of 32 ± 2.3 kg were used. As intended, the preand post-grazing sward heights were according to the treatments. The pre-grazing leaf/stem ratio of the Italian ryegrass pasture did not differ between treatments (P > 0.05) (~2.87), but the post-grazing leaf/stem ratio was greater (P < 0.001) in the RN than in the RT treatment (1.59 and 0.76, respectively). The percentage of the non-grazed area was greater (P < 0.01) in post-grazing for RN compared with RT treatment, with an average of 29.7% and 3.49%, respectively. Herbage nutritive value was greater for the RN than for the RT treatment, with greater CP and lower ADF and NDF contents. The total time spent grazing, ruminating and resting did not differ between treatments (P > 0.05), with averages of 439, 167 and 85 min, respectively. The bite rate, feeding stations per min and steps per min by sheep were greater (P < 0.05) in the RN than in the RT treatment. The grazing time per hour and the bite rate were greater (P < 0.05) in the afternoon than in the morning in both treatments. The daily herbage intake by sheep grazing Italian ryegrass was greater (P < 0.05) in the RN than in the RT treatment (843.7 and 707.8 g organic matter/sheep, respectively). Our study supports the idea that even though the grazing time was not affected by the grazing management strategies when the animal behaviour responses drive management targets, such as in ?Rotatinuous? stocking, the sheep herbage intake is maximized, and the grazing time is optimized.
653 $aGRAZING BEHAVIOUR
653 $aGRAZING MANAGEMENT
653 $aINTAKE RATE
653 $aITALIAN RYEGRASS
653 $aSWARD STRUCTURE
700 1 $aSCHONS, R.M.T.
700 1 $aMEZZALIRA, J.C.
700 1 $aBARTH NETO, A.
700 1 $aNETO, G.F. DA SILVA
700 1 $aBENVENUTTI, M.A.
700 1 $aCARVALHO, P.C. DE F.
773 $tAnimal, 2020, Volume 14, issue 12, pp. 2503-2510. https://doi.org/10.1017/S1751731120001251 -- OPEN ACCESS.
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INIA Treinta y Tres (TT) |
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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
30/10/2018 |
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Actualizado : |
10/10/2019 |
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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 : |
CIGANDA, V.; LÓPEZ-AIZPÚN, M.; REPULLO, M.A.; WU, D.; TERRA, J.A.; ELUSTONDO, D.; CLOUGH, T.; CARDENAS, L.M. |
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Afiliación : |
VERONICA SOLANGE CIGANDA BRASCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA LÓPEZ-AIZPÚN, LICA, Department of Chemistry, University of Navarre, Spain.; MIGUEL A REPULLO, Institute of Agricultural Research and Training (IFAPA), Spain.; DI WU, Institute of Bio-Geosciences, Agrosphere (IBG-3), Germany.; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DAVID ELUSTONDO, LICA, Department of Chemistry, University of Navarre, Spain.; TIM CLOUGH, Faculty of Agriculture and Life Sciences, New Zealand.; LAURA M. CARDENAS, Rothamsted Research, UK. |
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Título : |
Soil nitrous oxide emissions from grassland: potential inhibitor effect of hippuric acid. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Journal of Plant Nutrition ans Soil Science, 2018. |
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DOI : |
10.1002/jpln.201700393 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted 01 October 2018. |
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Contenido : |
Abstract:
In grassland systems, cattle and sheep urine patches are recognized as nitrous oxide (N2O) emission hot spots due to the high urinary nitrogen (N) concentrations. Hippuric acid (HA) is one of the constituents of ruminant urine that has been reported as a natural inhibitor of soil N2O emissions. The aim of this study was to examine the potential for elevated ruminant urine HA concentrations to reduce N2O emissions, in situ, on an acidic heavy clay soil under poorly drained conditions (WFPS > 85%). A randomized complete block design experiment with three replications and four treatments was conducted using the closed-static-flux chamber methodology.
The four treatments were applied inside the chambers: control with no artificial urine application (C), control artificial urine (U), and enriched artificial urine with two rates of HA (55.8 and 90 mM, U+HA1, U+HA2). Soil inorganic-N, soil dissolved organic carbon (DOC), soil pH as well as N2O and methane (CH4) fluxes were monitored over a 79-d period. Although N2O emissions were not affected by the HA enriched urine treatments, U+HA2 positively affected the retention of N as NHþ4 until day 3, when the soil pH dropped to values < 5. Subsequently, as a consequence of rainfall events and soil acidification, it is likely that leaching or sorption onto clay
reduced the efficacy of HA, masking any treatment differential effect on N2O emissions. Moreover, CH4 fluxes as well as DOC results reflected the soil anaerobic conditions which did not favour nitrification processes. Further research is needed to determine the fate of HA into the soil which might clarify the lack of an in situ effect of this compound. MenosAbstract:
In grassland systems, cattle and sheep urine patches are recognized as nitrous oxide (N2O) emission hot spots due to the high urinary nitrogen (N) concentrations. Hippuric acid (HA) is one of the constituents of ruminant urine that has been reported as a natural inhibitor of soil N2O emissions. The aim of this study was to examine the potential for elevated ruminant urine HA concentrations to reduce N2O emissions, in situ, on an acidic heavy clay soil under poorly drained conditions (WFPS > 85%). A randomized complete block design experiment with three replications and four treatments was conducted using the closed-static-flux chamber methodology.
The four treatments were applied inside the chambers: control with no artificial urine application (C), control artificial urine (U), and enriched artificial urine with two rates of HA (55.8 and 90 mM, U+HA1, U+HA2). Soil inorganic-N, soil dissolved organic carbon (DOC), soil pH as well as N2O and methane (CH4) fluxes were monitored over a 79-d period. Although N2O emissions were not affected by the HA enriched urine treatments, U+HA2 positively affected the retention of N as NHþ4 until day 3, when the soil pH dropped to values < 5. Subsequently, as a consequence of rainfall events and soil acidification, it is likely that leaching or sorption onto clay
reduced the efficacy of HA, masking any treatment differential effect on N2O emissions. Moreover, CH4 fluxes as well as DOC results reflected the soil anaerobic conditions... Presentar Todo |
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Palabras claves : |
BOVINE URINE; HEAVY CLAY SOIL; N2O EMISSIONS; NATURAL NITRIFICATION INHIBITION. |
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Thesagro : |
BOVINOS; GASES DE EFECTO INVERNADERO; ORINA; OXIDO NITROSO. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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Marc : |
LEADER 02634naa a2200325 a 4500
001 1059265
005 2019-10-10
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1002/jpln.201700393$2DOI
100 1 $aCIGANDA, V.
245 $aSoil nitrous oxide emissions from grassland$bpotential inhibitor effect of hippuric acid.$h[electronic resource]
260 $c2018
500 $aArticle history: Accepted 01 October 2018.
520 $aAbstract: In grassland systems, cattle and sheep urine patches are recognized as nitrous oxide (N2O) emission hot spots due to the high urinary nitrogen (N) concentrations. Hippuric acid (HA) is one of the constituents of ruminant urine that has been reported as a natural inhibitor of soil N2O emissions. The aim of this study was to examine the potential for elevated ruminant urine HA concentrations to reduce N2O emissions, in situ, on an acidic heavy clay soil under poorly drained conditions (WFPS > 85%). A randomized complete block design experiment with three replications and four treatments was conducted using the closed-static-flux chamber methodology. The four treatments were applied inside the chambers: control with no artificial urine application (C), control artificial urine (U), and enriched artificial urine with two rates of HA (55.8 and 90 mM, U+HA1, U+HA2). Soil inorganic-N, soil dissolved organic carbon (DOC), soil pH as well as N2O and methane (CH4) fluxes were monitored over a 79-d period. Although N2O emissions were not affected by the HA enriched urine treatments, U+HA2 positively affected the retention of N as NHþ4 until day 3, when the soil pH dropped to values < 5. Subsequently, as a consequence of rainfall events and soil acidification, it is likely that leaching or sorption onto clay reduced the efficacy of HA, masking any treatment differential effect on N2O emissions. Moreover, CH4 fluxes as well as DOC results reflected the soil anaerobic conditions which did not favour nitrification processes. Further research is needed to determine the fate of HA into the soil which might clarify the lack of an in situ effect of this compound.
650 $aBOVINOS
650 $aGASES DE EFECTO INVERNADERO
650 $aORINA
650 $aOXIDO NITROSO
653 $aBOVINE URINE
653 $aHEAVY CLAY SOIL
653 $aN2O EMISSIONS
653 $aNATURAL NITRIFICATION INHIBITION
700 1 $aLÓPEZ-AIZPÚN, M.
700 1 $aREPULLO, M.A.
700 1 $aWU, D.
700 1 $aTERRA, J.A.
700 1 $aELUSTONDO, D.
700 1 $aCLOUGH, T.
700 1 $aCARDENAS, L.M.
773 $tJournal of Plant Nutrition ans Soil Science, 2018.
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