Document Detail

Animal performance, plasma hormones and metabolites in Holstein and Belgian Blue growing-fattening bulls.
MedLine Citation:
PMID:  2211396     Owner:  NLM     Status:  MEDLINE    
Six Holstein (light-muscled type) and six Belgian Blue bulls (double-muscled type) were fed a finishing diet. Average daily gain was 1.36 kg for the Holstein bulls vs 1.24 kg for the Belgian Blue bulls (P less than .05). Holstein bulls consumed more feed (2.3 vs 1.8 kg/100 kg body weight, P less than .001) than the Belgian Blue bulls. The dressing percentage (55.4 vs 65.8%, P less than .001) and the proportion of muscle (56.1 vs 71.3%, P less than .001) in the carcass were less, whereas the proportions of adipose tissue (28.3 vs 15.4%, P less than .001) and bone (15.7 vs 13.4%, P less than .05) were higher in the Holstein bulls. Plasma creatinine determined in samples obtained once a week was lower (11.0 vs 20.3 mg/liter, P less than .001) in the Holstein bulls. In contrast, Holstein bulls tended to produce more triiodothyronine (2.3 vs 1.8 nM, P less than .10), tetraiodothyronine (71.9 vs 54.7 nM, P less than .10) and insulin-like growth factor I (IGF-I; 340 vs 205 ng/ml, P less than .20) than the Belgian Blue bulls. Growth hormone, insulin, IGF-I and testosterone were measured at 20-min intervals during two 24-h periods. In wk 6, Holstein bulls tended to produce more growth hormone than the Belgian Blues, as indicated by higher total peak area (3,185 vs 2,431 ng), peak amplitude (34.1 vs 22.6 ng/ml, P less than .10) and baseline (4.6 vs 3.3 ng/ml, P less than .20). In wk 27, the trends were opposite.(ABSTRACT TRUNCATED AT 250 WORDS)
L Istasse; C Van Eenaeme; P Evrard; A Gabriel; P Baldwin; G Maghuin-Rogister; J M Bienfait
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of animal science     Volume:  68     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1990 Sep 
Date Detail:
Created Date:  1990-11-21     Completed Date:  1990-11-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2666-73     Citation Subset:  IM    
Université de Liège, Bruxelles, Faculté de Médecine Vétérinaire, Belgium.
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MeSH Terms
Adipose Tissue / growth & development
Body Weight
Bone Development
Cattle / blood,  growth & development*
Creatinine / blood
Hormones / blood*
Insulin-Like Growth Factor I / analysis
Muscle Development*
Organ Size
Reg. No./Substance:
0/Hormones; 60-27-5/Creatinine; 67763-96-6/Insulin-Like Growth Factor I

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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