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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0001779,
umls-concept:C0005910,
umls-concept:C0008051,
umls-concept:C0014406,
umls-concept:C0021665,
umls-concept:C0032105,
umls-concept:C0037663,
umls-concept:C0039476,
umls-concept:C0204695,
umls-concept:C0205307,
umls-concept:C0348080,
umls-concept:C0439230,
umls-concept:C0439836,
umls-concept:C0441889,
umls-concept:C1707391
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pubmed:issue |
4
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pubmed:dateCreated |
1994-1-4
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pubmed:abstractText |
The aim of this study was to compare the effect of high (33 degrees C) and normal (33-20 degrees C) rearing temperature on growth and plasma levels of the somatotrophic hormones of 2 genetic lines of broiler chickens selected for 6-wk body weight (GL-line) or for feed conversion between 3 and 6 wk of age (FC-line) or for feed conversion between 3 and 6 wk of age (FC-line). Blood samples were collected weekly and analysed for growth hormone (GH) and insulin-like growth factors (IGF)-I and -II levels by RIA. The growth-depressing effect of the HT-treatment was more pronounced in the heavier GL-line and in males. A similar age-related pattern for all hormones studied was observed with the highest levels between 2 and 4 wk of age. FC-line chickens and males had consistently higher plasma GH levels than GL-line chickens and females respectively. No consistent effect of rearing temperature on plasma GH levels were observed. At 2 wk of age, HT-treatment resulted in higher plasma IGF-I levels while this was reversed from 3 wk of age onwards. GL-line chickens had significantly higher plasma IGF-I levels at 2, 3 and 4 wk of age. No consistent effect of sex on plasma IGF-I levels could be observed. For the whole period studied, GL-line chickens had significantly higher plasma IGF-II levels than FC-line chickens. No consistent effect of sex or temperature treatment on plasma IGF-II levels was observed.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0926-5287
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
33
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
361-72
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8240680-Aging,
pubmed-meshheading:8240680-Animals,
pubmed-meshheading:8240680-Body Weight,
pubmed-meshheading:8240680-Chickens,
pubmed-meshheading:8240680-Female,
pubmed-meshheading:8240680-Growth Hormone,
pubmed-meshheading:8240680-Hot Temperature,
pubmed-meshheading:8240680-Insulin-Like Growth Factor I,
pubmed-meshheading:8240680-Insulin-Like Growth Factor II,
pubmed-meshheading:8240680-Male,
pubmed-meshheading:8240680-Sex Characteristics,
pubmed-meshheading:8240680-Weight Gain
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pubmed:year |
1993
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pubmed:articleTitle |
Plasma levels of growth hormone and insulin-like growth factor-I and -II from 2 to 6 weeks of age in meat-type chickens selected for 6-week body weight or for feed conversion and reared under high or normal environmental temperature conditions.
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pubmed:affiliation |
Spelderholt Centre for Poultry Research and Information Services (COVP-DLO), Beekbergen, The Netherlands.
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pubmed:publicationType |
Journal Article
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