Article (Scientific journals)
Animal performance, plasma hormones and metabolites in Holstein and Belgian Blue growing-fattening bulls.
Istasse, Louis; Van Eenaeme, Christian; Evrard, Pierre et al.
1990In Journal of Animal Science, 68 (9), p. 2666-73
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Keywords :
Adipose Tissue/growth & development; Animals; Body Weight; Bone Development; Breeding; Cattle/blood/growth & development; Creatinine/blood; Hormones/blood; Insulin-Like Growth Factor I/analysis; Male; Muscle Development; Organ Size
Abstract :
[en] 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)
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Istasse, Louis ;  Université de Liège - ULiège > Département de productions animales > Nutrition des animaux domestiques
Van Eenaeme, Christian 
Evrard, Pierre
Gabriel, Annick ;  Université de Liège - ULiège > Département de morphologie et pathologie > Anatomie des animaux domestiques
Baldwin, Paule 
Maghuin-Rogister, Guy ;  Université de Liège - ULiège > Département de sciences des denrées alimentaires > Département de sciences des denrées alimentaires
Bienfait, Jean-Marie 
Language :
English
Title :
Animal performance, plasma hormones and metabolites in Holstein and Belgian Blue growing-fattening bulls.
Publication date :
1990
Journal title :
Journal of Animal Science
ISSN :
0021-8812
eISSN :
1525-3163
Publisher :
American Society of Animal Science, Savoy, United States - Illinois
Volume :
68
Issue :
9
Pages :
2666-73
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 March 2009

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