Reference : Animal performance, plasma hormones and metabolites in Holstein and Belgian Blue grow...
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
http://hdl.handle.net/2268/8433
Animal performance, plasma hormones and metabolites in Holstein and Belgian Blue growing-fattening bulls.
English
Istasse, Louis mailto [Université de Liège - ULg > Département de productions animales > Nutrition des animaux domestiques >]
Van Eenaeme, Christian [> > > >]
Evrard, Pierre [> > > >]
Gabriel, Annick mailto [Université de Liège - ULg > Département de morphologie et pathologie > Anatomie des animaux domestiques >]
Baldwin, Paule [> > > >]
Maghuin-Rogister, Guy mailto [Université de Liège - ULg > Département de sciences des denrées alimentaires > Département de sciences des denrées alimentaires >]
Bienfait, Jean-Marie [> > > >]
1990
Journal of Animal Science
American Society of Animal Science
68
9
2666-73
Yes (verified by ORBi)
International
0021-8812
1525-3163
Savoy
IL
[en] 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
[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)
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/8433

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