Aphagia in Chickens

Feldman, Sanford E.; Larsson, Sara; Dimick, M. K.; Lepkovsky, Samuel

doi:10.1152/ajplegacy.1957.191.2.259

Cited by 66 publications

(14 citation statements)

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“…At present, however, several lines of evidence suggest that the avian brain, particularly the hypothalamus, contains important thermal integration and control centers. Lesions in the anterior hypothalamus disrupt thermoregulation in domestic fowl (Rogers and Lackey 1923;Feldman et al 1957;Lepkovskyet al 1968) and house sparrows (Mills and Heath 1972b). Rautenberg et al (1972) found that although the lower cervical and thoracic spinal cord in the domestic pigeon is sensitive to local heating and cooling, appropriate thermoeffector responses depend on neural information ascending to higher centers.…”

Section: Integration Of Sensory Input and Control Of Effectorsmentioning

confidence: 99%

Avian Adjustments to Cold

Marsh

Dawson

1989

Advances in Comparative and Environmental Physiology

113

104

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Section: Integration Of Sensory Input and Control Of Effectorsmentioning

confidence: 99%

Avian Adjustments to Cold

Marsh

Dawson

1989

Advances in Comparative and Environmental Physiology

113

104

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“…and satiety centres (Feldman et al, 1957;Smith, 1969). However infusion techniques, as used in the mammal, such as the introduction of phloridzin and gold thioglucose into these hypothalamic areas, have no effect on chickens (Svacha and Reid, 1973;Apostol et al, 1977).…”

Section: T G H Shurlock and J M Forbesmentioning

confidence: 99%

Evidence for hepatic glucostatic regulation of food intake in the domestic chicken and its interaction with gastro‐intestinal control

Shurlock

Forbes

1981

British Poultry Science

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1. Male birds of a laying strain had permanent catheters introduced into the hepatic portal vein via the coccygeo-mesenteric vein. 2. Infusions of 5 ml of 40, 100 or 150 g glucose/l solution over 2 min caused a non-significant depression of food intake compared with a 9 g NaCl/l control solution. 3. Infusions of a range of isotonic glucose solution (0 to 60 g glucose/l, 30- mosm) at 1.4 ml/min over 3 h caused food intake depression within the 3-h period (P less than 0.01) proportional to the logarithm of the dose. 4. This effect was not observed when 60 g glucose/l was infused at the above rates into the jugular vein. 5. Starvation of the bird for 21 h accentuated the depressive effect of glucose load on food intake, especially when birds were not given food until after the 3-h infusion. 6. The infusion of solutions of sodium chloride (1.0 to 13.0 g/l, 33 to 433 mosmoles/kg) at 1.4 ml/min over 3 h stimulated food intake within the range of 3 to 7 g NaCl/l (100 to 233 mosm) but suppressed intake outside this range. This can be interpreted as a possible interaction with water intake control. 7. Infusion of 20 ml of glucose solution (0, 18 or 54 g/l) over 5 min into the crop and 0, 3.75 or 60 g glucose/l at 1.4 ml/min over 3 h into the hepatic portal vein, caused an additive, linear depression of food intake.

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“…In contrast, bilateral removal of the LHy results in aphagia and a marked loss in body weight (Anand and Brobeck, 1951). The experimental results found using mammals have been confirmed with avian species (Feldman et al, 1957;Lepkovsky and Yasuda, 1966;Kuenzel and Helms, 1967;Kuenzel, 1972Kuenzel, , 1982aSnapir et al, 1973;Sonoda et al, 1975). Since the 1950's, research has been committed to Scientific Article Number A-4821 Contribution Number 7847 of the Maryland Agricultural Experiment Station (Department of Poultry Science).…”

Section: Introductionmentioning

confidence: 86%

Neuroanatomical Substrates Involved in the Control of Food Intake

Kuenzel

1989

Poultry Science

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Five neural pathways were reviewed regarding their specific role in the control of food intake in birds. The five pathways included the trigeminal sensorimotor system, the visual system/basal ganglia pathway, the gustatory system, the olfactory pathway, and the autonomic nervous system/parasympathetic pathway. The trigeminal system is the pathway best understood among the five systems associated with feeding. It begins with sensory nerves innervating the upper and lower mandibles and buccal cavity and ends with nerves projecting to jaw muscles. The function of the pathway is to control the grasping and mandibulation of pellets or seeds. The visual system includes both the tectofugal and thalamofugal pathways. Both visual pathways interact with the avian paleostriatal complex. The latter is equivalent to the mammalian basal ganglia. The second pathway is important in food recognition as well as in orienting the body with respect to its position in three-dimensional space. The third neural circuit involves the sense of taste. Approximately 300 taste buds have been identified within the buccal cavity of the chicken, suggesting that the gustatory system is better developed than once thought. The fourth pathway involves the olfactory system; as in the visual system, more than one pathway has been identified. The dominant pathway appears to project to the piriform cortex, a structure that may play a role in monitoring essential amino acid contents of the brain. The fifth pathway involves an interaction of the hypothalamus and the dorsal motor nucleus of the vagus. This pathway is important in activating the parasympathetic nervous system and in preparing an organism to feed. All five pathways play different roles in controlling food intake in birds.

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Aphagia in Chickens

Cited by 66 publications

References 0 publications

Avian Adjustments to Cold

Avian Adjustments to Cold

Evidence for hepatic glucostatic regulation of food intake in the domestic chicken and its interaction with gastro‐intestinal control

Neuroanatomical Substrates Involved in the Control of Food Intake

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