Homeostatic responses to water deprivation or hemorrhage in lactating and non-lactating bedouin goats

doi:10.1016/0300-9629(84)90015-X

Comparative Biochemistry and Physiology Part A: Physiology

Volume 77, Issue 1, 1984, Pages 79-84

Comparative Biochemi...

https://doi.org/10.1016/0300-9629(84)90015-X Get rights and content

Abstract

1.
1. Three lactating and three non-lactating black Bedouin goats were subjected to four days of water deprivation or to hemorrhage.
2.
2. Four days of water deprivation caused body wt losses of 32 and 23% and plasma volume losses of 30 and 34% in lactating and non-lactating goats respectively.
3.
3.Plasma osmolality increased 17 and 15% in lactating and non-lactating goats. Plasma arginine vasopressin concentration rose from about 5 pg/ml to a mean of 36 pg/ml. Plasma renin activity increased from about 0.7 ng/ml/hr to a mean of 3.45 ng/ml/hr in lactating and to 3.15 ng/ml/hr in non-lactating goats.
4.
4. At 4.5 hr post-rehydration plasma osmolality and plasma vasopressin concentration were back to normal in non-lactating, but still elevated in lactating goats. Plasma renin activity increased after rehydration.
5.
5. Rapid blood volume loss of 21–28% increased plasma vasopressin concentration to 16–35 pg/ml in non-lactating and to 70 or > 500 pg/ml in lactating goats.
6.
6. It is concluded that black Bedouin goats are well adapted to endure severe dehydration and rapid rehydration, but that they (especially lactating animals) react strongly to rapid volume depletion.

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Homeostatic responses to water deprivation or hemorrhage in lactating and non-lactating bedouin goats

Abstract

Comp. Biochem. Physiol.

Kidney Int.

J. Dairy Sci.

Brain Res.

Regulation of body fluids

A. Rev. Physiol.

ADH in regulation of blood osmolality and extracellular fluid volume

J. Parental Ent. Nutr.

The effects of hypotension and hypovolemia on the liberation of vasopressin during haemorrhage in the unanaesthetized monkey (Macaca mulatta)

Pflügers Arch. geg. Physiol.

Renin responses to water restriction and rehydration

J. Physiol., Lond.

Renin, antidiuretic hormone and the kidney in water restriction and rehydration

J. Physiol. Lond.

The rumen as a protective osmotic mechanism during rapid rehydration in the black Bedouin goat

The role of blood osmolality and volume in regulating vasopressin secretion in the rat

J. clin. Invest.

Thirst

Physiol. Rev.

Mechanisms of vasopressin release during hypoxia

Radioimmunoassay of plasma renin activity

Clin. Chem.

Review of Medical Physiology

Renin-angiotensin system, aldosterone and sodium balance

Recent Progr. Horm. Res.

The regulation of extra-cellular fluid volume

A. Rev. of Physiol.