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Comparison of Hypothalamic Monoamine Contents of Broiler- and Layer- Type Chickens at Prehatch and Posthatch

  Domestic chickens, which are precocial, have relatively well developed mechanisms of food intake regulation at hatch. Although their body weight is similar at hatch, broiler- and layer-type chickens have different growth rates and food intake following hatch. The purpose of the present study was t... Full description

Journal Title: The Journal of Poultry Science 2003, Vol.40(4), p.282
Main Author: Yamasaki, Izumi
Other Authors: Sashihara, Koichi , Takagi, Tomo , Nakanishi, Tomonori , D. Denbow, Michael , Furuse, Mitsuhiro
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 13467395 ; E-ISSN: 13490486
Link: http://search.proquest.com/docview/1439290608/?pq-origsite=primo
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title: Comparison of Hypothalamic Monoamine Contents of Broiler- and Layer- Type Chickens at Prehatch and Posthatch
format: Article
creator:
  • Yamasaki, Izumi
  • Sashihara, Koichi
  • Takagi, Tomo
  • Nakanishi, Tomonori
  • D. Denbow, Michael
  • Furuse, Mitsuhiro
subjects:
  • Monoamines
  • Monoamine Metabolites
  • Hypothalamus
  • Broiler-Type Chicken
  • Layer-Type Chicken
ispartof: The Journal of Poultry Science, 2003, Vol.40(4), p.282
description:   Domestic chickens, which are precocial, have relatively well developed mechanisms of food intake regulation at hatch. Although their body weight is similar at hatch, broiler- and layer-type chickens have different growth rates and food intake following hatch. The purpose of the present study was to compare the hypothalamic content of the monoamines norepinephrine (NE), epinephrine (E), dopamine (DA) and serotonin (5-HT), and their metabolites dihydroxyphenylacetic acid (DOPAC), 4-hydroxy-3-methoxyphenylacetic acid (HVA) and 5-dihydroxyindolacetic acid (5-HIAA) between these strains on day 18 of incubation, and at 0 day-of-age. In both strains, 5-HT and 5-HIAA levels increased with age. On day 18 of incubation, the amounts of NE and E were almost the same between the two strains. Thereafter, the content of both monoamines rapidly increased at hatch in both strains, and layer-type chicken embryos had significantly higher E levels compared to broiler-type chicken embryos. The levels of DOPAC and HVA on day 18 of incubation were higher in broiler-type chicken embryos than in layer-type chicken embryos, but these differences were reduced at hatch. These changes at hatch may partly explain the difference in the performance between the two strains.
language: eng
source:
identifier: ISSN: 13467395 ; E-ISSN: 13490486
fulltext: fulltext
issn:
  • 13467395
  • 1346-7395
  • 13490486
  • 1349-0486
url: Link


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titleComparison of Hypothalamic Monoamine Contents of Broiler- and Layer- Type Chickens at Prehatch and Posthatch
creatorYamasaki, Izumi ; Sashihara, Koichi ; Takagi, Tomo ; Nakanishi, Tomonori ; D. Denbow, Michael ; Furuse, Mitsuhiro
ispartofThe Journal of Poultry Science, 2003, Vol.40(4), p.282
identifierISSN: 13467395 ; E-ISSN: 13490486
description  Domestic chickens, which are precocial, have relatively well developed mechanisms of food intake regulation at hatch. Although their body weight is similar at hatch, broiler- and layer-type chickens have different growth rates and food intake following hatch. The purpose of the present study was to compare the hypothalamic content of the monoamines norepinephrine (NE), epinephrine (E), dopamine (DA) and serotonin (5-HT), and their metabolites dihydroxyphenylacetic acid (DOPAC), 4-hydroxy-3-methoxyphenylacetic acid (HVA) and 5-dihydroxyindolacetic acid (5-HIAA) between these strains on day 18 of incubation, and at 0 day-of-age. In both strains, 5-HT and 5-HIAA levels increased with age. On day 18 of incubation, the amounts of NE and E were almost the same between the two strains. Thereafter, the content of both monoamines rapidly increased at hatch in both strains, and layer-type chicken embryos had significantly higher E levels compared to broiler-type chicken embryos. The levels of DOPAC and HVA on day 18 of incubation were higher in broiler-type chicken embryos than in layer-type chicken embryos, but these differences were reduced at hatch. These changes at hatch may partly explain the difference in the performance between the two strains.
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description  Domestic chickens, which are precocial, have relatively well developed mechanisms of food intake regulation at hatch. Although their body weight is similar at hatch, broiler- and layer-type chickens have different growth rates and food intake following hatch. The purpose of the present study was to compare the hypothalamic content of the monoamines norepinephrine (NE), epinephrine (E), dopamine (DA) and serotonin (5-HT), and their metabolites dihydroxyphenylacetic acid (DOPAC), 4-hydroxy-3-methoxyphenylacetic acid (HVA) and 5-dihydroxyindolacetic acid (5-HIAA) between these strains on day 18 of incubation, and at 0 day-of-age. In both strains, 5-HT and 5-HIAA levels increased with age. On day 18 of incubation, the amounts of NE and E were almost the same between the two strains. Thereafter, the content of both monoamines rapidly increased at hatch in both strains, and layer-type chicken embryos had significantly higher E levels compared to broiler-type chicken embryos. The levels of DOPAC and HVA on day 18 of incubation were higher in broiler-type chicken embryos than in layer-type chicken embryos, but these differences were reduced at hatch. These changes at hatch may partly explain the difference in the performance between the two strains.
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abstract  Domestic chickens, which are precocial, have relatively well developed mechanisms of food intake regulation at hatch. Although their body weight is similar at hatch, broiler- and layer-type chickens have different growth rates and food intake following hatch. The purpose of the present study was to compare the hypothalamic content of the monoamines norepinephrine (NE), epinephrine (E), dopamine (DA) and serotonin (5-HT), and their metabolites dihydroxyphenylacetic acid (DOPAC), 4-hydroxy-3-methoxyphenylacetic acid (HVA) and 5-dihydroxyindolacetic acid (5-HIAA) between these strains on day 18 of incubation, and at 0 day-of-age. In both strains, 5-HT and 5-HIAA levels increased with age. On day 18 of incubation, the amounts of NE and E were almost the same between the two strains. Thereafter, the content of both monoamines rapidly increased at hatch in both strains, and layer-type chicken embryos had significantly higher E levels compared to broiler-type chicken embryos. The levels of DOPAC and HVA on day 18 of incubation were higher in broiler-type chicken embryos than in layer-type chicken embryos, but these differences were reduced at hatch. These changes at hatch may partly explain the difference in the performance between the two strains.
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doi10.2141/jpsa.40.282
pages282-289