Central regulation of food intake in the neonatal chick

Furuse, Mitsuhiro

doi:10.1046/j.1344-3941.2002.00014.x

Cited by 76 publications

(36 citation statements)

References 116 publications

(221 reference statements)

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“…As suggested by Denbow (1994), higher plasma glucose in the HT group may contribute to reduce food intake. However, regulation of food intake is complicated in animals including domestic birds (Furuse, 2002); several hypothalamic factors are suggested as regulating factors for food intake in chicken (Furuse, 2007). According to Takahashi et al (2005), the thermoregulatory response to thyrotropin-releasing hormone may differ in neonatal stages being dependent upon the stimulation of the hypothalamus-pituitary-adrenal axis rather than the hypothalamus-pituitary-thyroid axis.…”

Section: Discussionmentioning

confidence: 99%

Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

et al. 2012

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Birds reduce their food intake by the exposure to high ambient temperature (HT) which ultimately affects their productivity. However, physiological and behavioral responses of young chicks of different ages to HT have not yet been investigated. In this study, we examined the effects of HT (40℃, 4-h) in 3-, 5-, 7-, 14-and 21-d old chicks. There were no significant differences in food intake between heat exposed and control chicks up to 7-d old, while clear suppressions of food intake were observed in 14-and 21-d old heat exposed chicks. Body weights were not affected in all age groups; however, rectal temperature was significantly increased in almost all ages. We examined blood metabolites of 7-, 14-and 21-d old chicks and found that plasma glucose concentration gradually increased in 14-to 21-d old heat exposed chicks. Conversely, triacylglycerol age-dependently decreased during exposure to HT. No significant changes were detected in plasma total protein, uric acid and calcium investigated in 7-, 14-and 21-d old heat exposed chicks compared to control groups. However, plasma glutamic-oxalacetic transaminase showed a significant interaction between HT and age, implying that liver and/or heart was damaged by HT with aging. These results indicate that HT (40℃; 4-h) suppresses food intake in young chicks of 14-or 21-d old age which reflects in some of their plasma metabolic concentrations.

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Section: Discussionmentioning

confidence: 99%

Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

et al. 2012

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“…Indeed, the mechanisms underlying the control of eating behaviour are complex (Furuse, 2002). The wild ancestors of the domestic fowl possessed an ability to select nutrients meeting almost all their requirements.…”

Section: Introductionmentioning

confidence: 99%

“…Regulation of feed intake has two key components: one that involves the short-term control of feeding and one that involves the long-term regulation of energy balance by the central nervous system (Richards, 2003). The long-term control of feed intake is of metabolic origin with a coordinated regulation of feed intake and energy expenditure to achieve energy balance according to the genetic basis (McMinn et al, 2000;Furuse, 2002;Richards, 2003;Richards and Proszkowiec-Weglarz, 2007). The short-term control occurs from meal to meal.…”

Section: Introductionmentioning

confidence: 99%

Effects of various energy and protein levels during sequential feeding on feed preferences in meat-type chickens

Bouvarel

Vallée

Chagneau

et al. 2008

Animal

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Short-term feed preferences were studied in individually caged chickens fed sequentially in order to understand a previously described imbalance in the intake of diets offered. Sequential feeding (SF) was carried out for four 48 h cycles in male broiler chickens. The diets varied in energy (2800 (E2) and 3200 kcal/kg (E1)) and protein (230 (P1) and 150 g/kg (P2)) contents. SF was compared to standard feeding (C) (3000 kcal/kg ME and CP 5 190 g/kg). In experiment 1, three treatments were used: C, S E (E2 followed by E1) and S E 0 (E1 followed by E2). Four treatments were used in experiment 2: C, S P (P1 followed by P2), S E and S EP (P1E2 followed by P2E1). Total feed intake was measured during the SF period. After this, short-term preferences were evaluated with a choice test on chickens previously fed with the same feeds during the SF period (experienced birds) and in C chickens (naïve birds). In both experiments, total feed intake was similar among treatments and the percentage of each feed consumed was not significantly different from controls (50%). In experiment 1, S E and S E 0 chickens over-consumed E1 and under-consumed E2 diets only during the first 15 min of the fourth cycle. The choice test indicated that experienced chickens preferred E1, while naïve chickens preferred E2. Similarly, in experiment 2, chickens over-consumed E1 and E1P2 during the first 15 min of the fourth cycle, but the intake of diets varying in protein content was not different from controls. During the choice test, as in experiment 1, experienced chickens preferred E1, while naïve chickens preferred E2. There was a slight preference for the protein-poor diet in naïve birds and there was no preference in the diet varying in both protein and energy contents. Experience modified choice between feeds varying in energy content but not in protein. When feeds were known, preference for energy affected the feed intake immediately after switching from one diet to the other, although lower with the diet also varying in protein, it did not influence the total intake of each diet. Interactions between the nutritional properties and sensorial cues of feed could explain these results.

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“…The hypothalamus of the central nervous system is well documented as an important region in regulation of food intake and body weight in domestic chickens (Kuenzel et al, 1999;Furuse, 2002;Boswell, 2005). In the chicken hypothalamus, several nuclei including the infundibular nucleus (IN), the paraventricular nucleus (PVN) and the lateral hypothalamic area (LHA) are involved in the regulation of food intake and body weight (Kuenzel et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies proved that several neuropeptides were involved in the central regulation of food intake and body weight in the domestic chicken (Furuse, 2002;2007). Neuropeptide Y (NPY), a 36-amino acid peptide, belonging to a member of the pancreatic polypeptide family that includes peptide YY and pancreatic polypeptide (Tatemoto et al, 1982), is one of the most orexigenic agents in birds.…”

Section: Introductionmentioning

confidence: 99%

Type-dependent differential expression of neuropeptide Y in chicken hypothalamus (Gallus domesticus)

Chen

Sugahara

et al. 2007

J. Zhejiang Univ. - Sci. B

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Neuropeptide Y (NPY) is one of the most important orexigenic agents in central regulation of feeding behavior, body weight and energy homeostasis in domestic chickens. To examine differences in the hypothalamic NPY between layer-type and meat-type of chickens, which are two divergent kinds of the domestic chickens in feeding behavior and body weight, we detected mRNA levels of NPY in hypothalamic infundibular nucleus (IN), paraventricular nucleus (PVN) and lateral hypothalamic area (LHA) of these two types of chickens using one-step real time RT-PCR. The meat-type chicken had more food daily (about 1.7 folds) and greater body weights (about 1.5 folds) and brain weights than the layer-type chicken at the age of 14 d. In the meat-type of chicken, NPY mRNA levels of the IN and PVN were significantly greater than those of the LHA, and were not significantly different between the IN and PVN. However, in the layer-type of chicken, NPY mRNA levels were significantly greater in the IN than those in the LHA and PVN, and were not significantly different between the PVN and LHA. In all these hypothalamic regions, the layer-type of chicken had significantly higher NPY mRNA levels than the meat-type chicken did. These results suggest the expression of NPY in the hypothalamus has a type-dependent pattern in domestic chickens.

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Central regulation of food intake in the neonatal chick

Cited by 76 publications

References 116 publications

Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

Effects of various energy and protein levels during sequential feeding on feed preferences in meat-type chickens

Type-dependent differential expression of neuropeptide Y in chicken hypothalamus (Gallus domesticus)

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