References of "Van Eenaeme, Christian"
     in
Bookmark and Share    
See detailEffects of nitrogen fertilizer on sward heigh, animal performance and economic balance in pasture grazed by growing fattening bulls
Dufrasne, Isabelle ULg; Raskin, Pascale; Mayombo, Asangule Pierre et al

in Abstracts of the 47th meeting of the European Association for Animal Production (1996)

Detailed reference viewed: 4 (0 ULg)
See detailStratégies d'engraissement du taurillon Blanc Bleu Belge culard. Performances, qualité des carcasses et de la viande, approche métabolique et bilan économique
Minet, Vincent; Van Eenaeme, Christian ULg; Raskin, Pascale et al

Book - DG6 Ministère de l'Agriculture (1996)

Detailed reference viewed: 169 (7 ULg)
Full Text
Peer Reviewed
See detailMuscle protein metabolism in relation to growth rate in double muscled Belgian Blue bulls: an integrated approach
Van Eenaeme, Christian ULg; Hornick, Jean-Luc ULg; Baldwin, Paule et al

in Mededelingen van de Faculteit van Landbouwwetenschappen, Rijksuniversiteit, Gent (1996), 61/4a

Detailed reference viewed: 9 (1 ULg)
Full Text
Peer Reviewed
See detailCharacterization of growth hormone-binding protein in cattle plasma: prolactin-binding activity and 24-hour profile.
Massart, S.; Ban, A. M.; Renaville, Robert ULg et al

in Domestic Animal Endocrinology (1996), 13(1), 47-57

The purpose of this study was to characterize circulating growth hormone-binding proteins (GHBP) and prolactin-binding proteins (PRLBP) in cattle blood plasma. In particular, the 24-hr profile of these ... [more ▼]

The purpose of this study was to characterize circulating growth hormone-binding proteins (GHBP) and prolactin-binding proteins (PRLBP) in cattle blood plasma. In particular, the 24-hr profile of these molecules was investigated. The preincubation of bull plasma with iodinated bovine growth hormone (bGH) or bovine prolactin (bPRL), followed by gel filtration chromatography (Superdex 200; 1.6 x 60 cm column), resulted in the formation of essentially two complexes. The majority of [125I]bPRL eluted with the first one (M(r) approximately 600 kDa), whereas [125I]bGH mainly appeared in the second one (M(r) approximately 70 kDa). The fractions corresponding to these two peaks were analyzed by western ligand blotting (WLB), under reducing conditions. WLB revealed, respectively, 190-, 56-, 52-, and 28-kDa bands for the first peak and only 52- and 28-kDa bands for the second one. The nature of the 600-kDa peak is at present undetermined, but the 70-kDa one was previously identified as high-affinity GHBP. Displacement studies demonstrated that bGH and bPRL were both able to bind to this GHBP, because the bGH- and bPRL-binding activities of this protein could be saturated by an excess of either of these two hormones. This was indirectly confirmed by the close correlation (r = 0.615; P = 0.0001; n = 155) observed between plasma bGH- and bPRL-binding activities, because this correlation could suggest that both ligands are bound to the same proteins. The temporal concentrations of plasma GHBP were measured in samples collected at 20-min intervals for 24 hr from 8 young bulls. The evaluation of GHBP was realized by WLB, followed by densitometric analysis. Some fluctuations were observed, but these were not correlated with bGH release, even with a +/- 2-hr lag period. In summary, we found that bovine high-affinity GHBP binds not only bGH, but also bPRL. A second type of protein, of higher molecular weight, also binds these two hormones, but further investigations are needed to determine its nature. Finally, GHBP concentrations in cattle blood plasma apparently show fluctuations over a 24-hr period, but no correlation was found between these fluctuations and plasma growth hormone concentrations. [less ▲]

Detailed reference viewed: 45 (20 ULg)
Full Text
Peer Reviewed
See detailGlucose, alpha-amino nitrogen and amino acid exchange across the hindlimb in young bulls maintained at two growth rates
Hornick, Jean-Luc ULg; Van Eenaeme, Christian ULg; Gauthier, Sabine et al

in Canadian Journal of Animal Science (1996), 76(2), 193-202

The effect of growth rate and protein supplementation on muscle metabolism of eight bulls from the Belgian Blue breed, double-muscled type, was investigated by the arterio-venous difference technique. A ... [more ▼]

The effect of growth rate and protein supplementation on muscle metabolism of eight bulls from the Belgian Blue breed, double-muscled type, was investigated by the arterio-venous difference technique. A low growth (LG) group was maintained at a low growth rate over 36 d, and a rapid growth (RG) group for 28 d before receiving a fattening diet allowing for a rapid growth. At the end of the RG period the RG bulls received a supplement of protected soybean meal. Animals were fitted with an aortic ultrasonic blood flow probe and with catheters in the aorta and the vena cava. The blood flow in the hindlimbs of bulls varied greatly by time of the day but was higher in the RG group. The RG group had a higher arterio-venous difference (AVD) and uptake of alpha-amino nitrogen while AVD in essential amino acids was four times higher and uptake eight times higher. Significant higher AVD or uptake was observed in individual amino acids such as leucine, isoleucine and lysine. The supplementation with protected soybean meal had significant negative effect on the uptake of several amino acids. It was concluded that caution should be exercised when measuring punctually blood flow in muscle tissue, for example by dilution techniques. At high growth rate, the requirements for amino acids are larger than for glucose. Excess protein provides no additional benefit. [less ▲]

Detailed reference viewed: 20 (0 ULg)
Full Text
See detailEffects of different periods of feed restriction before compensatory growth on performance in Belgian Blue bulls
Hornick, Jean-Luc ULg; Clinquart, Antoine ULg; Van Eenaeme, Christian ULg et al

in EAAP (Ed.) Abstracts of the 47th meeting of the European Association for Animal Production (1996)

Detailed reference viewed: 4 (1 ULg)
Full Text
Peer Reviewed
See detailBeef production in Belgium: to which extent manage extensification
Istasse, Louis ULg; Clinquart, Antoine ULg; Dufrasne, Isabelle ULg et al

in Proceeding of a workshop held in Paris on Novembre 22, 23 and 24, 1995 (1995)

Detailed reference viewed: 18 (2 ULg)
Full Text
Peer Reviewed
See detailValidation of Creatine, Glycogen and L-(+)-Lactate Determination in Biopsy Samples of Bovine Musculus Diaphragma
Desmecht, Daniel ULg; Linden, Annick ULg; Cuvelier-Klimek, M. et al

in Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine (1995), 42(1), 13-26

Whereas reliable measurements of diaphragmatic force and electrical activity are now available in calves, evidence that substrate contents in the bovine diaphragm can be accurately measured is still ... [more ▼]

Whereas reliable measurements of diaphragmatic force and electrical activity are now available in calves, evidence that substrate contents in the bovine diaphragm can be accurately measured is still lacking. The purposes of the present study were therefore a) to describe and test the reliability of methods and procedures used for sampling, lyophilisation, extraction and dosage of muscular lactate, glycogen and creatine contents and b) to report the variation in their levels found along the bovine diaphragm and among individuals. The repeatability of the results yielded by a) assaying the extracts, b) processing and assaying the extracts and c) taking samples at different sites in the muscle was assessed. Neither assay, nor processing effects were significant (P < or = 0.05). Substrates were found to be homogeneously distributed within the two muscles studied. Substrate contents expressed per unit of muscle weight or total creatine were neither more or less variable than when expressed per unit of dry matter. [less ▲]

Detailed reference viewed: 37 (9 ULg)
Peer Reviewed
See detailSoya oil in diet for growing-fattening bulls: I. Effects on animal performances and carcass composition
Clinquart, Antoine ULg; Van Eenaeme, Christian ULg; Dufrasne, Isabelle ULg et al

in Journal of Animal Physiology & Animal Nutrition (1995), 74

Detailed reference viewed: 3 (0 ULg)
Peer Reviewed
See detailUtilisation de la paille dans des rations d'engraissement: ingestion, dynamique de la digestion et cinétique de dégradabilité dans le rumen
Mayombo, Asangule Pierre; Van Eenaeme, Christian ULg; Gauthier, Sabine et al

in Annales de Zootechnie (1995), 44

Detailed reference viewed: 8 (4 ULg)
Peer Reviewed
See detailFeed restriction and IGFBP in bulls: effects of increasing starving period lengths.
Massart, Serge; Van Eenaeme, Christian ULg; Renaville, Robert ULg et al

in Journal of Animal Science (1995), 73(suppl 1), 225

Detailed reference viewed: 9 (4 ULg)
Peer Reviewed
See detailGrowth hormone-binding protein (GHBP) binds prolactine in cattle plasma
Massart, Serge; Ban, Anna-Maria; Renaville, Robert ULg et al

in Archives Internationales de Physiologie, de Biochimie et de Biophysique (1995), 103

Detailed reference viewed: 12 (2 ULg)
Full Text
Peer Reviewed
See detailPlasma Hormones and Metabolites in Cattle in Relation to Breed (Belgian Blue Vs Holstein) and Conformation (Double-Muscled Vs Dual-Purpose Type)
Clinquart, Antoine ULg; Van Eenaeme, Christian ULg; Mayombo, A. P. et al

in Veterinary Research Communications (1995), 19(3), 185-94

Four Belgian Blue double-muscled type (BBDM) bulls, four Belgian Blue dual-purpose type (BBDP) bulls and four Holstein bulls were used in a fattening trial in order to relate differences in the extent of ... [more ▼]

Four Belgian Blue double-muscled type (BBDM) bulls, four Belgian Blue dual-purpose type (BBDP) bulls and four Holstein bulls were used in a fattening trial in order to relate differences in the extent of muscle development and adiposity to differences in digestibility, endocrine status, protein and lipid metabolism. The larger muscle development in BBDM animals was associated with a trend to higher nitrogen retention, higher food conversion efficiency (p < 0.05) and lower apparent digestibility (p < 0.05). No difference was found between the groups for plasma glucose concentration. Higher creatinine, lower alpha-amino nitrogen, lower triglycerides and higher non-esterified fatty acid plasma levels were observed in BBDM as compared to Holstein bulls (p < 0.05), the BBDP group being intermediate. A trend to a higher cholesterol plasma level was found in BBDM animals. There was no difference between the three groups in plasma fatty acid composition, except for the C14:0 content. Some of the differences in plasma metabolites were related to carcass composition and endocrine regulation, a decrease in muscle development and an increase in adiposity being associated with lower growth hormone production (p < 0.05) and higher insulin (p < 0.05) and IGF secretions. The insulin/growth hormone ratio at the end of the fattening period was 0.0011, 0.0018 and 0.0069 in BBDM, BBDP and Holstein bulls, respectively, and was directly associated with fat deposition. [less ▲]

Detailed reference viewed: 25 (5 ULg)