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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
19/01/2018 |
Data da última atualização: |
22/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ALVES, J. N.; ARAUJO, G. G. L. de; G. NETO, S.; VOLTOLINI, T. V.; SANTOS, R. D. dos; ROSA, P. R.; GUAN, L.; McALLISTER, T.; NEVES, A. L. A. |
Afiliação: |
J. N. ALVES, UFPB; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; S.G. NETO,, UFPB; TADEU VINHAS VOLTOLINI, CPATSA; RAFAEL DANTAS DOS SANTOS, CPATSA; P. R. ROSA, UNIVASF; L. GUAN, University of Alberta, Edmonton, AB, Canada; T. McALLISTER, University of Alberta, Edmonton, AB, Canada; ANDRE LUIS ALVES NEVES, CNPGL. |
Título: |
Effect of increasing concentrations of total dissolved salts in drinking water on digestion, performance and water balance in heifers. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Journal of Agricultural Science, v. 155, p. 847-856, 2017. |
DOI: |
10.1017/S0021859617000120 |
Idioma: |
Inglês |
Conteúdo: |
In the near future, ruminants may be forced to consume low-quality water since potable drinking water will become increasingly scarce in some regions of the world. A completely randomized design trial was completed to evaluate the effect of increasing concentrations of total dissolved salts (TDS) (640, 3187, 5740 and 8326 mg TDS/l) in drinking water on the performance, diet digestibility, microbial protein synthesis, nitrogen (N) and water balance using 24 Red Sindhi heifers (200 ± 5 kg) that were fed Buffel (Cenchrus ciliaris) grass hay and concentrate in a ratio of 50 : 50. After a 15-day diet adaptation period, the digestion study was completed over a 5-day period and the performance trial was completed over a 56-day period. Dry matter intake, average daily gain, feed:gain, intake and digestibility of most feed components were unaffected by the concentration of salt in the water. However, intake and digestibility of neutral detergent fibre declined linearly as TDS inclusion rate increased. Further, the inclusion of TDS resulted in a linear increase in the intake of drinking water and total (food plus drinking) water intake. Similarly, TDS inclusion levels resulted in a linear increase in total water excretion, with urine being the major route of water excretion. In contrast, increasing concentrations of TDS caused a linear decrease in creatinine and allantoin excretions. Finally, increasing the inclusion rate of TDS resulted in a linear decrease in N retention and a linear increase in urinary N excretion, which may pose a considerable challenge for farmers with respect to the reduction and management of nutrient losses. MenosIn the near future, ruminants may be forced to consume low-quality water since potable drinking water will become increasingly scarce in some regions of the world. A completely randomized design trial was completed to evaluate the effect of increasing concentrations of total dissolved salts (TDS) (640, 3187, 5740 and 8326 mg TDS/l) in drinking water on the performance, diet digestibility, microbial protein synthesis, nitrogen (N) and water balance using 24 Red Sindhi heifers (200 ± 5 kg) that were fed Buffel (Cenchrus ciliaris) grass hay and concentrate in a ratio of 50 : 50. After a 15-day diet adaptation period, the digestion study was completed over a 5-day period and the performance trial was completed over a 56-day period. Dry matter intake, average daily gain, feed:gain, intake and digestibility of most feed components were unaffected by the concentration of salt in the water. However, intake and digestibility of neutral detergent fibre declined linearly as TDS inclusion rate increased. Further, the inclusion of TDS resulted in a linear increase in the intake of drinking water and total (food plus drinking) water intake. Similarly, TDS inclusion levels resulted in a linear increase in total water excretion, with urine being the major route of water excretion. In contrast, increasing concentrations of TDS caused a linear decrease in creatinine and allantoin excretions. Finally, increasing the inclusion rate of TDS resulted in a linear decrease in N retention and a linea... Mostrar Tudo |
Palavras-Chave: |
Alimentação animal; Consumo de água; Digestion and performance. |
Thesagro: |
Água; Consumo; Dieta; Nutrição animal. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/171431/1/Effet.pdf
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Marc: |
LEADER 02597naa a2200313 a 4500 001 2085919 005 2018-01-22 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1017/S0021859617000120$2DOI 100 1 $aALVES, J. N. 245 $aEffect of increasing concentrations of total dissolved salts in drinking water on digestion, performance and water balance in heifers.$h[electronic resource] 260 $c2017 520 $aIn the near future, ruminants may be forced to consume low-quality water since potable drinking water will become increasingly scarce in some regions of the world. A completely randomized design trial was completed to evaluate the effect of increasing concentrations of total dissolved salts (TDS) (640, 3187, 5740 and 8326 mg TDS/l) in drinking water on the performance, diet digestibility, microbial protein synthesis, nitrogen (N) and water balance using 24 Red Sindhi heifers (200 ± 5 kg) that were fed Buffel (Cenchrus ciliaris) grass hay and concentrate in a ratio of 50 : 50. After a 15-day diet adaptation period, the digestion study was completed over a 5-day period and the performance trial was completed over a 56-day period. Dry matter intake, average daily gain, feed:gain, intake and digestibility of most feed components were unaffected by the concentration of salt in the water. However, intake and digestibility of neutral detergent fibre declined linearly as TDS inclusion rate increased. Further, the inclusion of TDS resulted in a linear increase in the intake of drinking water and total (food plus drinking) water intake. Similarly, TDS inclusion levels resulted in a linear increase in total water excretion, with urine being the major route of water excretion. In contrast, increasing concentrations of TDS caused a linear decrease in creatinine and allantoin excretions. Finally, increasing the inclusion rate of TDS resulted in a linear decrease in N retention and a linear increase in urinary N excretion, which may pose a considerable challenge for farmers with respect to the reduction and management of nutrient losses. 650 $aÁgua 650 $aConsumo 650 $aDieta 650 $aNutrição animal 653 $aAlimentação animal 653 $aConsumo de água 653 $aDigestion and performance 700 1 $aARAUJO, G. G. L. de 700 1 $aG. NETO, S. 700 1 $aVOLTOLINI, T. V. 700 1 $aSANTOS, R. D. dos 700 1 $aROSA, P. R. 700 1 $aGUAN, L. 700 1 $aMcALLISTER, T. 700 1 $aNEVES, A. L. A. 773 $tJournal of Agricultural Science$gv. 155, p. 847-856, 2017.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
19/08/2011 |
Data da última atualização: |
06/01/2012 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
C - 0 |
Autoria: |
NUNES, S. A.; ROMANI, L. A. S.; AVILA, A. M. H.; TRAINA JUNIOR, C.; SOUSA, E. P. M. de; TRAINA, A. J. M. |
Afiliação: |
SANTIAGO AUGUSTO NUNES, ICMC/USP; LUCIANA ALVIM SANTOS ROMANI, CNPTIA; ANA M. H. AVILA, Cepagri/Unicamp; CAETANO TRAINA JUNIOR, ICMC/USP; ELAINE P. M. DE SOUSA, ICMC/USP; AGMA J. M. TRAINA, ICMC/USP. |
Título: |
Fractal-based analysis to identify trend changes in multiple climate time series. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Journal of Information and Data Management, Belo Horizonte, v. 2, n. 1, p. 51-57, Feb. 2011. |
Idioma: |
Inglês |
Conteúdo: |
Abstract. In the last few decades, huge amounts of climate data have been gathered and stored by several institutions. The analysis of these data has become an important task due to worldwide climate changes and the consequent social and economic effects. In this work, we propose an approach to analyzing multiple climate time series in order to identify intrinsic temporal patterns and trend changes. By dealing with multiple time series as multidimensional data streams and combining fractal-based analysis with clustering, we can integrate different climate variables and discover general behavior changes over time. |
Palavras-Chave: |
Clusterização; Dados climáticos; Mineração de dados; Séries temporais. |
Thesaurus NAL: |
Climate; Cluster analysis; Meteorology and climatology; Time series analysis. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40113/1/fractal105-389-1-PB.pdf
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Marc: |
LEADER 01481naa a2200277 a 4500 001 1898365 005 2012-01-06 008 2011 bl uuuu u00u1 u #d 100 1 $aNUNES, S. A. 245 $aFractal-based analysis to identify trend changes in multiple climate time series.$h[electronic resource] 260 $c2011 520 $aAbstract. In the last few decades, huge amounts of climate data have been gathered and stored by several institutions. The analysis of these data has become an important task due to worldwide climate changes and the consequent social and economic effects. In this work, we propose an approach to analyzing multiple climate time series in order to identify intrinsic temporal patterns and trend changes. By dealing with multiple time series as multidimensional data streams and combining fractal-based analysis with clustering, we can integrate different climate variables and discover general behavior changes over time. 650 $aClimate 650 $aCluster analysis 650 $aMeteorology and climatology 650 $aTime series analysis 653 $aClusterização 653 $aDados climáticos 653 $aMineração de dados 653 $aSéries temporais 700 1 $aROMANI, L. A. S. 700 1 $aAVILA, A. M. H. 700 1 $aTRAINA JUNIOR, C. 700 1 $aSOUSA, E. P. M. de 700 1 $aTRAINA, A. J. M. 773 $tJournal of Information and Data Management, Belo Horizonte$gv. 2, n. 1, p. 51-57, Feb. 2011.
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