CONTROL OF THE SALT-SECRETING GLAND OF THE DUCK: I. OSMOTIC REGULATION

1967 ◽  
Vol 45 (6) ◽  
pp. 925-936 ◽  
Author(s):  
André Lanthier ◽  
Thomas Sandor
Keyword(s):  
Sodium Chloride ◽  
Sodium Bicarbonate ◽  
Intravenous Infusion ◽  
Electrolyte Concentration ◽  
Salt Gland ◽  
The Other ◽  
Gland Secretion ◽  
Osmotic Regulation ◽  
Domestic Duck ◽  
Salt Gland Secretion

The osmotic regulation of the salt gland secretion was studied in the domestic duck. The response to the intravenous infusion of 5% sodium chloride (850 meq Na per liter) was established in unanesthetized ducks. Sodium bicarbonate (892 meq Na/l) produced a salt gland secretion similar to that after 5% sodium chloride, except that it was accompanied by a moderate diuresis. Mannitol and sucrose had similar effects. On the other hand, urea, ammonium chloride, dextran, and meralluride produced only a small amount of salt-gland secretion of low electrolyte concentration. Antidiuretic doses of Pitressin did not induce secretion of the salt gland.

Sodium and potassium in spontaneously produced salt gland secretion and tears of ducks, Anas platyrhynchos, acclimated to fresh and saline waters

1969 ◽  
Vol 47 (6) ◽  
pp. 1133-1138 ◽  
Author(s):  
Maryanne Robinson Hughes ◽  
Frank E. Ruch Jr.
Keyword(s):  
Anas Platyrhynchos ◽  
Salt Gland ◽  
Gland Secretion ◽  
Domestic Duck ◽  
Salt Glands ◽  
Salt Gland Secretion ◽  
Harderian Glands ◽  
Nacl Concentration ◽  
Saline Waters ◽  
Sodium And Potassium

The spontaneously produced salt gland secretion (SGS) and tears of the domestic duck, Anas platyrhynchos, were analyzed for sodium (Na), potassium (K), and chloride (Cl) (Cl in SGS only). Acclimation to seawater did not enhance the concentrating ability of the salt glands. The NaCl concentration exceeded that of seawater by only a small margin. The tears of saline-acclimated birds contained less Na and more K than birds drinking water with low NaCl content. Salt stress significantly increased the weight of the salt glands and of the Harderian glands; the lacrymal glands were not affected. An estimation of the relative possible contribution of the cloacal fluid, SGS, and tears to cation excretion was made.

Sensitivity of the receptors for salt-gland secretion in the domestic duck and goose

1973 ◽  
Vol 44 (1) ◽  
pp. 41-46 ◽  
Author(s):  
M. Peaker ◽  
Stephanie J. Peaker ◽  
Ann Hanwell ◽  
J.L. Linzell
Keyword(s):  
Salt Gland ◽  
Gland Secretion ◽  
Domestic Duck ◽  
Salt Gland Secretion

Salt Gland Secretion in Saline-Acclimated Chestnut Teal, and its Relevance to Release Programs

1982 ◽  
Vol 30 (3) ◽  
pp. 407 ◽  
Author(s):  
RV Baudinette ◽  
FI Norman ◽  
J Roberts
Keyword(s):  
Sodium Chloride ◽  
Fresh Water ◽  
Salt Water ◽  
Salt Gland ◽  
Gland Secretion ◽  
Lower Body ◽  
Salt Gland Secretion ◽  
Body Weights ◽  
Concentrate Urine ◽  
Nasal Glands

Chestnut teal were raised on increasing concentrations of sodium chloride in their drinking and bathing water, and the response to an intravenous salt load compared with that of animals maintained on fresh water. The salt-raised birds had lower body weights, larger nasal glands and higher plasma osmotic and sodium levels than control animals. After infusion of sodium chloride, the rate of salt gland secretion was similar in the two groups, but the salt-acclimated animals produced higher concentrations. These birds also were superior in their ability to concentrate urine. Although acclimation to salt water does induce changes in chestnut teal, they remain inferior to truly marine birds in their ability to handle salt. Their observed feeding in saline environments, and their release into such areas, probably rely on access to fresh water.

Cation content of salt gland secretion and tears in the brolga, Grus rubicundus (Perry) (Aves : Gruidae)

1973 ◽  
Vol 21 (4) ◽  
pp. 515 ◽  
Author(s):  
MR Hughes ◽  
JG Blackman
Keyword(s):  
Salt Gland ◽  
Plasma Potassium ◽  
Sodium Concentration ◽  
Gland Secretion ◽  
Plasma Sodium ◽  
First Report ◽  
Gland Size ◽  
Cation Content ◽  
Salt Gland Secretion ◽  
Sodium And Potassium

This is the first report of salt gland secretion in cranes (Gruidae). The sodium and potassium concentrations of the plasma, tears, salt gland secretion, and urine of the brolga were determined. Tear sodium was equal to plasma sodium; tear plasma was four times as concentrated as plasma potassium. These values were normal for tears. The salt gland secretion sodium concentration (about 300 m-equivll) was lower than that reported for other NaC1-injected birds. This may be due to the diet, small gland size, or to insufficient stress. The salt gland secretion to plasma ratios were the same for sodium and potassium. This is unusual. The urine had a lower sodium concentration than the plasma.

Effect of volume expansion and veratrine on salt gland secretion in the goose

1977 ◽  
Vol 232 (5) ◽  
pp. R185-R189
Author(s):  
I. H. Zucker ◽  
C. Gilmore ◽  
J. Dietz ◽  
J. P. Gilmore
Keyword(s):  
Volume Expansion ◽  
Plasma Osmolality ◽  
Salt Gland ◽  
Sodium Concentration ◽  
Ringer Solution ◽  
Gland Secretion ◽  
Similar Increase ◽  
Volume Load ◽  
Salt Gland Secretion ◽  
Peripheral Receptor

The influence of acute intravascular volume expansion on salt gland secretion of conscious, adult geese was investigated. The intravenous administration of 5% dextran in Krebs-bicarbonate-Ringer solution in an amount equivalent to 30% of the estimated blood volume caused a transient but highly significant increase in salt gland secretion independent of changes in plasma osmolality or sodium concentration. Intravenous veratrine (60 microng) caused a similar increase in salt gland secretion only when administered after the volume load. Intravenous 5% NaCl always caused a prolonged and significant increase in salt gland secretion which was not potentiated by veratrine. Volume expansion and hypertonic saline caused a significant tachycardia while veratrine caused a significant bradycardia. It is concluded that a volume component may contribute to the initiation of salt gland secretion in the goose and that the peripheral receptor involved is most likely vascular in origin.

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