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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/05/1997 |
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Data da última atualização: |
03/01/2024 |
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Autoria: |
MIYAZAKI, A.; AIYAMA, H.; KAWASHIMA, R. |
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Título: |
Relationship between nitrogen intake and water intake in ruminants in special reference to the preventive effect on the incidence of urolithiasis. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Japanese Journal Zootechnie Science, v. 55, n. 4, p. 257-262, 1984. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: It was suggested in the previous experiment that urea feeding seemed to be effective to prevent urolithiasis in ruminants on high concentrate ration. This effect seemed to be caused by the increased blood urea level followed by the increased urinary excretion of water, which increased water intake. In ruminants, dietary protein was also known to increase blood urea level. The investigations reported here were undertaken to compare the effect of urea feeding with that of protein feeding on water intake and some ruminal and serum nitrogen fractions in sheep. The average water intake per metabolic body size per day in urea-fed animals was almost similar to that in soy protein-fed animals and was 174ml and 176ml respectively. However, that in control animals which ingested the restricted amounts of nitrogen was considerably small and was 135ml per day. Among ruminal and serum nitrogen fractions determined, ruminal ammonia nitrogen and serum urea nitrogen levels showed significant differences among these three treatment lots. Ruminal ammonia nitrogen and serum urea nitrogen levels were remarkably higher in urea-fed and soy protein-fed animals. Therefore, the difference in serum urea nitrogen level among these three treatment lots seemed to have relation with the difference in the amounts of water intake by the animals. It was remarked that urea feeding did not have a peculiar preventive effect on the incidence of urolithiasis but feeding of high protein ration has a similar preventive effect to urea feeding. MenosAbstract: It was suggested in the previous experiment that urea feeding seemed to be effective to prevent urolithiasis in ruminants on high concentrate ration. This effect seemed to be caused by the increased blood urea level followed by the increased urinary excretion of water, which increased water intake. In ruminants, dietary protein was also known to increase blood urea level. The investigations reported here were undertaken to compare the effect of urea feeding with that of protein feeding on water intake and some ruminal and serum nitrogen fractions in sheep. The average water intake per metabolic body size per day in urea-fed animals was almost similar to that in soy protein-fed animals and was 174ml and 176ml respectively. However, that in control animals which ingested the restricted amounts of nitrogen was considerably small and was 135ml per day. Among ruminal and serum nitrogen fractions determined, ruminal ammonia nitrogen and serum urea nitrogen levels showed significant differences among these three treatment lots. Ruminal ammonia nitrogen and serum urea nitrogen levels were remarkably higher in urea-fed and soy protein-fed animals. Therefore, the difference in serum urea nitrogen level among these three treatment lots seemed to have relation with the difference in the amounts of water intake by the animals. It was remarked that urea feeding did not have a peculiar preventive effect on the incidence of urolithiasis but feeding of high protein ration has a sim... Mostrar Tudo |
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Palavras-Chave: |
Litíase urinária; Prevencao; Urolitiase. |
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Thesagro: |
Água; Cálculo Urinário; Consumo Alimentar; Nitrogênio; Nutrição Animal; Ovino. |
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Thesaurus Nal: |
Ruminant nutrition; Sheep feeding; Urea; Urolithiasis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
null
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | ORTS, W. J.; CHIOU, B.-S.; BAKER, D. A.; SHEY, J.; IMAM, S. H.; GLENN, G. M.; MATTOSO, L. H. C. Nanocomposites from agricultural based materials. In: MACRO 2006; WORLD POLYMER CONGRESS, Rio de Janeiro, Brazil; INTERNATIONAL SYMPOSIUM ON MACROMOLECULES, 41ST., 2006, Rio de Janeiro. Proceedings... [S. l.]: ABPol, 2006. 1 CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
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