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Titolo:
THE USE OF INTRAGASTRIC NUTRITION TO STUDY SALIVA SECRETION AND THE RELATIONSHIP BETWEEN RUMEN OSMOTIC-PRESSURE AND WATER TRANSPORT
Autore:
ZHAO GY; DURIC M; MACLEOD NA; ORSKOV ER; HOVELL FDD; FENG YL;
Indirizzi:
ROWETT RES INST,GREENBURN RD BUCKSBURN AB2 9SB ABERDEEN SCOTLAND ROWETT RES INST BUCKSBURN AB2 9SB ABERDEEN SCOTLAND
Titolo Testata:
British Journal of Nutrition
fascicolo: 2, volume: 73, anno: 1995,
pagine: 155 - 161
SICI:
0007-1145(1995)73:2<155:TUOINT>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRA-GASTRIC INFUSION; SHEEP;
Keywords:
OSMOTIC PRESSURE; RUMEN; SALIVA; WATER ABSORPTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
G.Y. Zhao et al., "THE USE OF INTRAGASTRIC NUTRITION TO STUDY SALIVA SECRETION AND THE RELATIONSHIP BETWEEN RUMEN OSMOTIC-PRESSURE AND WATER TRANSPORT", British Journal of Nutrition, 73(2), 1995, pp. 155-161

Abstract

Four sheep sustained by intragastric nutrition were used to study saliva secretion and the relationship between osmotic pressure in the rumen and net water transport across the rumen wall. Different concentrations of buffer were infused into the rumen to change the rumen osmoticpressure. Salivary secretion was estimated from entrance of P into the rumen. Net water transport across the rumen wall was calculated as the difference between water inflow and water outflow from the rumen. Anegative linear relationship between the rumen osmotic pressure (X, mOsm/kg) and the water absorption across the rumen wall (Y, ml/h) was found: Y = (394 SE 8.3)-(1.22 SE 0.03)X, r(2) 0.83, (P < 0.001), and a positive linear relationship was found between the rumen osmotic pressure (X, mOsm/kg) and the outflow rate of rumen fluid (Y, ml/h): Y = (34.0 SE 8.0)+(0.97 SE 0.03)X, r(2) 0.56, (P < 0.001). The implication is that rumen osmotic pressure can be a key factor in the control of the net water transport across the rumen wall, the outflow of rumen fluid to omasum and the rumen liquid dilution rate. A method is suggested by which salivary secretion in sheep may be calculated from the water balance in the rumen.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/21 alle ore 05:16:51