Avian Water Metabolism—A Review

Leeson, S.; Summers, J. D.; Moran, E. T.

doi:10.1079/wps19760003

Cited by 15 publications

(15 citation statements)

References 30 publications

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“…It is likely that this increase in adrenocortical activity represents a stress response (Freeman, 1971;Siegel, 1971;Harvey e. al. 1980;Edens, 1983), since water deprivation results in a reduction of food intake, loss of body weight and ultimately in death (Haller & Sunde, 1966;Leeson et al 1976;Hill et al 1979). Although water deprivation has been reported to have little or no effect on cortico¬ sterone secretion in adult hens (Beuving & Vonder, 1978), it is less stressful in adults because water con¬ sumption per unit weight normally decreases with age, as does water turnover and the proportion of intraand extracellular water (Leeson et al 1976).…”

Section: Discussionmentioning

confidence: 95%

“…Deprivation of food and water Since the presentation of water stimulates food intake in water-deprived birds with free access to food (Leeson et al 1976;Hill, Powell & Charles, 1979), the possibility that an increase in feeding after rehydra¬ tion might cause adrenocortical suppression ; Klandorf & Harvey, 1984) was assessed. Sixteen birds were de¬ prived of food and water for 30 h and then eight were provided with free access to food (but not water) while the remaining birds were allowed to drink, but not feed.…”

Section: Deprivation Of Watermentioning

confidence: 99%

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Drinking-induced changes in fowl adrenocortical activity: effect of visual and non-visual stimuli

Harvey¹,

Klandorf²,

Lam³

1985

Journal of Endocrinology

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The deprivation of drinking water for 30 h resulted in increased corticosterone concentrations in the plasma of 8- to 10-week-old chickens. When water-deprived birds were allowed to drink ad libitum the corticosterone concentration declined within 45 min, to the level in hydrated controls, and remained suppressed thereafter. Similar reductions in the corticosterone concentrations were also observed in water-deprived chicks which were allowed to drink for only 5 min, 1 min or 5 s. The involvement of visual stimuli in mediating this adrenocortical response was demonstrated by a comparable decline in the corticosterone concentration in water-deprived birds which were presented with water but not allowed access to it. Non-visual stimuli also appeared to be causally involved in the adrenocortical suppression after drinking, since the intraperitoneal injection of tap water (40 ml per bird) also resulted in a lowering of the corticosterone level. However, in the absence of appropriate reinforcement from metabolic stimuli, a rebound in the corticosterone concentration was observed in birds prevented from drinking, in birds unable to satiate their thirst and in birds rehydrated (orally or intraperitoneally) without feeding. These results demonstrate adrenocortical suppression in water-deprived chickens after free access to food and water and the involvement of visual and non-visual stimuli in mediating this response. The maintenance of adrenocortical suppression is dependent upon metabolic stimuli associated with food and water intake.

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Section: Discussionmentioning

confidence: 95%

Section: Deprivation Of Watermentioning

confidence: 99%

Drinking-induced changes in fowl adrenocortical activity: effect of visual and non-visual stimuli

Harvey¹,

Klandorf²,

Lam³

1985

Journal of Endocrinology

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“…Thus layers of Group [NC]N started in laying last of all groups with the lowest egg production. Higher zinc levels guar antee a better sexual maturity and consequently an increase in live weight and egg mass (LEESONS & SUMMERS, 1987). This indicates that the selected amount of zinc was suffi cient for actual growing up during pullet phase, however not for later laying phase with a higher production intensity.…”

Section: Discussionmentioning

confidence: 97%

The Role of Experience in the Development of Selective Zinc Intake in Pullets

Steinruck

Kirchgeßner

Roth

1991

Archiv für Tierernaehrung

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Selective food intake behaviour was studied in pullets that were subjected to different zinc supply in early life. During the first four weeks post-hatching three groups, totaling 72 birds, were fed either a low zinc diet (25 ppm), a complete diet (50 ppm) or both diets in a choice situation. The prior feeding experience was investigated during the subsequent ontogenetic development in two-choice dietary tests. Chicks first exhibited a preference for the high zinc diet as deficiency symptoms can be seen in depleted birds. Juvenile pullets did not prefer any diet for the duration of experimental period. Layers were initially indifferent to the supplemented zinc diet, but after reaching high laying capacity they began preferentially to select the complete diet. The results indicate that early experience with diets different in zinc content have no influence on subsequent diet preferences at choice. The ability to select is based on association learning following ingestion. A conditioned diet aversion first developed in phases of high zinc requirement as a result of negative feedback mechanisms produced by the deficient diet.

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“…Daarom worden feces en urine als geheel behandeld en als excreta benoemd. In verse excreta varieert het watergehalte tussen 60 en 80% (Leeson et al, 1976;Henuk and Dingle, 2003).…”

Section: Waterverliesunclassified

Risicobeoordeling waterverstrekking aan vleeskuikens en vleeskuikenouderdieren

Jong

Koene

Ellen

et al. 2016

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Avian Water Metabolism—A Review

Cited by 15 publications

References 30 publications

Drinking-induced changes in fowl adrenocortical activity: effect of visual and non-visual stimuli

Drinking-induced changes in fowl adrenocortical activity: effect of visual and non-visual stimuli

The Role of Experience in the Development of Selective Zinc Intake in Pullets

Risicobeoordeling waterverstrekking aan vleeskuikens en vleeskuikenouderdieren

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