scholarly journals Muzzle Secretion Electrolytes as a Possible Indicator of Sodium Status in Buffalo (Bubalus bubalis) Calves: Effects of Sodium Depletion and Aldosterone Administration

1981 ◽  
Vol 34 (6) ◽  
pp. 561
Author(s):  
S Kumar ◽  
SP Singh
Keyword(s):  
Potassium Level ◽  
Bubalus Bubalis ◽  
Sodium Depletion ◽  
Parotid Saliva ◽  
Buffalo Calves ◽  
Sodium Deficiency ◽  
Sodium And Potassium

In two separate experiments, the effects of sodium depletion and aldosterone administration on sodium and potassium concentrations in muzzle secretion, saliva and urine were studied in buffalo calves. Sodium deficiency in the animals was experimentally produced by unilateral parotid saliva deprivation for 18 days. During sodium depletion, the sodium levels in saliva and muzzle secretion gradually fell while the potassium level gradually rose. The concentrations of both of these cations in urine gradually fell during the course of sodium depletion.

Acute effect of ACTH, aldosterone, sodium and potassium on parotid secretion

1959 ◽  
Vol 197 (3) ◽  
pp. 565-567 ◽  
Author(s):  
L. L. Langley ◽  
W. A. Beall ◽  
J. A. Smith
Keyword(s):  
Intravenous Infusion ◽  
Potassium Level ◽  
Potassium Concentration ◽  
Single Injection ◽  
Sodium Concentration ◽  
Acute Effect ◽  
Adrenal Steroids ◽  
Direct Influence ◽  
Parotid Saliva ◽  
Sodium And Potassium

The intravenous administration of 20 u of ACTH in a single injection alters the flow and composition of parotid saliva in the dog. The flow was increased 44%, sodium concentration 75% and the potassium concentration decreased 19%. These alterations do not occur in the adrenalectomized dog. Aldosterone increased the sodium concentration only 20%, decreased the potassium level 6.3% and had an insignificant influence on flow. The intravenous infusion of sodium decreases parotid flow whereas potassium increases it. It is concluded that these alterations represent a direct influence of the electrolytes on the gland since adrenalectomy has no influence on this response. It is suggested that parotid function is changed by the infusion of these electrolytes due to the alteration of the intra-extracellular gradients. The adrenal steroids may have a similar effect.

Forage based fattening of male buffalo calves (Bubalus bubalis) under farmers’ managed condition in Dang district, Nepal

2009 ◽  
Vol 2009 ◽  
pp. 54-54
Author(s):  
N R Devkota ◽  
S Ghimire
Keyword(s):  
Body Weight ◽  
Cost Effectiveness ◽  
Scientific Information ◽  
Bubalus Bubalis ◽  
The Body ◽  
Buffalo Calves ◽  
Different Ages ◽  
The Cost

Buffaloes (Bubalus bubalis) are an important component of livestock in Nepal. Its population has been estimated as 4,204,886 in 2005/06 (MOAC, 2006). Buffalo calves are seldom raised for meat in Nepal (Rana et al., 2000). In cases where they are raised, they are confined until six to eight months of age, as their dams will not give milk without them (Rana et al., 2000). Scientific information on fattening of male buffalo calves is scanty. A field based study was conducted to access the body weight of male buffalo calves raised under forage based and forage based plus limited concentrate supply at different ages, to determine the cost effectiveness of fattening technology under farmers’ managed condition.

Parotid Clearance of Sodium and Potassium

1958 ◽  
Vol 195 (3) ◽  
pp. 693-696 ◽  
Author(s):  
L. L. Langley ◽  
C. H. Gunthorpe ◽  
W. A. Beall
Keyword(s):  
Precursor Solution ◽  
Plasma Potassium ◽  
Salivary Flow ◽  
Low Flow ◽  
Parotid Saliva ◽  
Flow Rates ◽  
K Concentration ◽  
Potassium Clearance ◽  
The Relationship ◽  
Sodium And Potassium

A current hypothesis suggests that the mechanism of salivary production involves the formulation of a precursor solution followed by reabsorption of sodium and water but not potassium. Since this is similar to kidney physiology, clearance techniques were used to test the hypothesis. At parotid flow rates below about 0.2 cc/min. the concentration of Na varies directly and that of K indirectly with the flow. At higher rates the K concentration is independent of the flow and closely approximates that of the plasma. Potassium clearance, then, is independent of flow only at very low flows. The concentration of Na in parotid saliva varies with that in the plasma. Extrapolation of the curve cuts the abscissa at a point indicating that if the plasma Na concentration were reduced below approximately 100 mEq/l. no Na would appear in the saliva. The relationship between plasma concentration and the saliva Na/plasma Na ratio is an ascending curve. As the plasma K concentration increases so does the concentration in the parotid saliva. Extrapolation of this curve approaches the origin. The saliva K/plasma K ratio is independent of the plasma K concentration. When K is infused salivary flow rate increases. The infusion of Na decreases flow. These results are consistent with the selective reabsorption theory at low flow rates but there must be another mechanism to explain the findings at higher flows. It is suggested that the influence of Na and K infusion on salivation may be, at least partially, indirect.

Giant cell pneumonia in buffalo calves (Bubalus bubalis)

1973 ◽  
Vol 5 (2) ◽  
pp. 110-113
Author(s):  
R. G. Arora ◽  
D. S. Kalra
Keyword(s):  
Giant Cell ◽  
Bubalus Bubalis ◽  
Buffalo Calves

A Role for β-Melanotropin in the Regulation of Aldosterone Secretion during Sodium Deficiency in the Rat

1982 ◽  
Vol 63 (s8) ◽  
pp. 93s-95s ◽  
Author(s):  
Minoru Yamakado ◽  
Roberto Franco-Saenz ◽  
Patrick J. Mulrow
Keyword(s):  
Sodium Depletion ◽  
Aldosterone Secretion ◽  
Sodium Deficiency ◽  
Aldosterone Level ◽  
Adrenal Cells ◽  
Melanocyte Stimulating Hormone ◽  
Significant Stimulation ◽  
Late Step ◽  
Aldosterone Production ◽  
Corticosterone Response

1. The effect of sodium deficiency on adrenal sensitivity to β-melanotropin (β-melanocyte stimulating hormone; β-MSH) and the effect of β-MSH on a late step of aldosterone biosynthesis were studied using collagenase-dispersed rat adrenal cells. 2. Sodium depletion enhanced the sensitivity of the adrenal glomerulosa cells to β-MSH, resulting in a shift of the dose-response curve to the left, so that doses of β-MSH within the physiological range caused significant stimulation of aldosterone production. 3. The aldosterone level obtained by maximum doses of β-MSH was similar to that obtained after angiotensin (‘angiotensin II’; ANGII) during sodium depletion. 4. Sodium depletion did not change the corticosterone response to β-MSH by decapsular cells. 5. Similarly to ANGII, β-MSH significantly stimulated the conversion of exogenous corticosterone into aldosterone in the presence of an inhibitor of 3β-hydroxysteroid dehydrogenase, WIN 19,578. 6. These data suggest that β-MSH or peptides containing β-MSH may play a role in the regulation of aldosterone secretion during sodium depletion in the rat and that β-MSH increases aldosterone production partly by stimulating the late step in aldosterone biosynthesis, the conversion of corticosterone into aldosterone.

Sign in / Sign up

Export Citation Format

Share Document