Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Peer Reviewed
See detailPhénotypes des Escherichia coli K99. Etude de souches d'Europe, d'Amérique et d'Asie
Pohl, P.; Lintermans, P.; Mainil, Jacques ULg et al

in Annales de Médecine Vétérinaire (1988), 132

Detailed reference viewed: 3 (0 ULg)
Peer Reviewed
See detailPhenotypic analysis of strains deleted for genes with unknown function: data and general reasoning.
Bianchi, M.; Sartori, G.; Vandenbol, Micheline ULg et al

Poster (2001, August)

Detailed reference viewed: 6 (0 ULg)
Peer Reviewed
See detailPhenotypic analysis of strains deleted for genes with unknown function: data and general reasoning.
Bianchi, M.; Sartori, G.; Vandenbol, Micheline ULg et al

in Yeast (Chichester, England) (2001), 18(S97), 5-31

Detailed reference viewed: 2 (0 ULg)
See detailPhenotypic analysis on media containing drugs
Vandenbol, Micheline ULg; Hilger, François; Portetelle, Daniel ULg

Poster (1999)

Detailed reference viewed: 6 (2 ULg)
See detailPhenotypic analysis on media containing drugs.
Vandenbol, Micheline ULg; Hilger, F.; Portetelle, Daniel ULg

in Fourth Eurofan Meeting (1999)

Detailed reference viewed: 3 (0 ULg)
Full Text
See detailPhenotypic and genetic variability of methane emissions and milk fatty acid contents of Walloon Holstein dairy cows
Vanrobays, Marie-Laure ULg; Kandel, Purna Bhadra ULg; Soyeurt, Hélène ULg et al

Poster (2013, February 07)

There is a growing interest in reducing methane (CH4) emissions from enteric fermentation of dairy cows because these emissions contribute to climate change and represent losses of gross energy intake for ... [more ▼]

There is a growing interest in reducing methane (CH4) emissions from enteric fermentation of dairy cows because these emissions contribute to climate change and represent losses of gross energy intake for cows. Milk fatty acid (FA) profile is influenced by rumen fermentations. The aim of this study was to estimate phenotypic and genetic variability of enteric CH4 emissions of dairy cows and FA contents of milk. CH4 emissions (g/d) and milk FA contents are predicted from milk mid-infrared (MIR) spectra based on calibration equations developed by Vanlierde et al. (2013) and Soyeurt et al. (2011), respectively. Data included 161,681 records from 22,642 cows in 489 herds. Genetic parameters of MIR CH4 emissions and 7 groups of FA contents in milk were estimated for Walloon Holstein cows in first parity using bivariate (CH4 emission with a FA trait) random regression test-day models. Saturated FA presented higher genetic correlations with MIR CH4 production than unsaturated FA (0.25 vs. 0.10). Genetic correlations with MIR CH4 emissions were higher for short-(SC) and medium-chain (MC) FA (0.24 and 0.23, respectively) than for long-chain (LC) FA (0.13). Phenotypic correlations between MIR CH4 emissions and SC and MC FA were also higher than those between MIR CH4 emissions and LC FA (0.20 vs. -0.08). Finally, results showed that MIR milk FA profile and MIR CH4 emissions are correlated emphasizing indirect link between milk FA and CH4 emissions through rumen metabolism. [less ▲]

Detailed reference viewed: 18 (3 ULg)
Full Text
Peer Reviewed
See detailPhenotypic and genetic variability of production traits and milk fatty acid contents across days in milk for Walloon Holstein first-parity cows.
Bastin, Catherine ULg; Gengler, Nicolas ULg; Soyeurt, Hélène ULg

in Journal of Dairy Science (2011), 94(8), 4152-63

The objective of this study was to assess the phenotypic and genetic variability of production traits and milk fatty acid (FA) contents throughout lactation. Genetic parameters for milk, fat, and protein ... [more ▼]

The objective of this study was to assess the phenotypic and genetic variability of production traits and milk fatty acid (FA) contents throughout lactation. Genetic parameters for milk, fat, and protein yields, fat and protein contents, and 19 groups and individual FA contents in milk were estimated for first-parity Holstein cows in the Walloon Region of Belgium using single-trait, test-day animal models and random regressions. Data included 130,285 records from 26,166 cows in 531 herds. Heritabilities indicated that de novo synthesized FA were under stronger genetic control than FA originating from the diet and from body fat mobilization. Estimates for saturated short- and medium-chain individual FA ranged from 0.35 for C4:0 to 0.44 for C8:0, whereas those for monounsaturated long-chain individual FA were lower (around 0.18). Moreover, de novo synthesized FA were more heritable in mid to late lactation. Approximate daily genetic correlations among traits were calculated as correlations between daily breeding values for days in milk between 5 and 305. Averaged daily genetic correlations between milk yield and FA contents did not vary strongly among FA (around -0.35) but they varied strongly across days in milk, especially in early lactation. Results indicate that cows selected for high milk yield in early lactation would have lower de novo synthesized FA contents in milk but a slightly higher content of C18:1 cis-9, indicating that such cows might mobilize body fat reserves. Genetic correlations among FA emphasized the combination of FA according to their origin: contents in milk of de novo FA were highly correlated with each other (from 0.64 to 0.99). Results also showed that genetic correlations between C18:1 cis-9 and other FA varied strongly during the first 100 d in milk and reinforced the statement that the release of long-chain FA inhibits FA synthesis in the mammary gland while the cow is in negative energy balance. Finally, results showed that the FA profile in milk changed during the lactation phenotypically and genetically, emphasizing the relationship between the physiological status of cow and milk composition. [less ▲]

Detailed reference viewed: 117 (95 ULg)
Full Text
Peer Reviewed
See detailPhenotypic and genotypic characterisation of Brucella strains isolated from cattle in the Gambia.
Bankole, A. A.; Saegerman, Claude ULg; Berkvens, D. et al

in Veterinary Record : Journal of the British Veterinary Association (2010), 166(24), 753-6

Thirty-five serum samples and six hygroma fluid samples were collected from sexually mature cattle in one herd with clinical signs of brucellosis (abortion and hygromas) in the Western Region of the ... [more ▼]

Thirty-five serum samples and six hygroma fluid samples were collected from sexually mature cattle in one herd with clinical signs of brucellosis (abortion and hygromas) in the Western Region of the Gambia in order to isolate and characterise Brucella species. Information on the sex, age, number of calvings, number of abortions, presence of hygromas, and presence of orchitis was also collected for each animal sampled. Twenty-six (74 per cent) of the serum samples were positive in the rose bengal test and 29 (83 per cent) were positive by indirect ELISA. Three isolates of Brucella, biotyped as Brucella abortus biovar 3, were cultured from six hygroma fluid samples. The multiple locus variable number tandem repeat analysis assay clustered the isolates as B abortus with the same profile for the three isolates, suggesting a common origin of contamination. [less ▲]

Detailed reference viewed: 17 (7 ULg)
Peer Reviewed
See detailPhenotypic and genotypic characterization of enterotoxigenic Escherichia coli serotypes O8:KX105 and O8:K"2829" strains isolated from piglets with diarrhea
Broes, A.; Fairbrother, J. M.; Mainil, Jacques ULg et al

in Journal of Clinical Microbiology (1988), 26

Detailed reference viewed: 4 (1 ULg)
Full Text
Peer Reviewed
See detailPhenotypic Characterization of Osteoblasts from the Sclerotic Zones of Osteoarthritic Subchondral Bone
Sanchez, Christelle ULg; Deberg, Michelle ULg; Bellahcene, Akeila ULg et al

in Arthritis and Rheumatism (2008), 58(2), 442-55

OBJECTIVE: To determine the phenotype of osteoblasts from the sclerotic zones of human osteoarthritic (OA) subchondral bone. METHODS: Human osteoblasts were isolated from sclerotic or nonsclerotic areas ... [more ▼]

OBJECTIVE: To determine the phenotype of osteoblasts from the sclerotic zones of human osteoarthritic (OA) subchondral bone. METHODS: Human osteoblasts were isolated from sclerotic or nonsclerotic areas of subchondral bone and cultured for 14 days in monolayer. The expression of 14 genes was investigated by real-time reverse transcription-polymerase chain reaction. The activities of alkaline phosphatase (AP) and transglutaminases (TGases) were quantified by enzymatic assays. C-terminal type I procollagen propeptide (CPI), interleukin-1beta (IL-1beta), IL-6, IL-8, transforming growth factor beta1 (TGFbeta1), osteocalcin (OC), and osteopontin (OPN) were assayed in the culture medium by immunoassay. RESULTS: Gene expression levels of matrix metalloproteinase 13, COL1A1 and COL1A2, OPN, tissue-nonspecific AP, OC, vascular endothelial growth factor, ANKH, TGase 2, factor XIIIA, and dentin matrix protein 1 were significantly up-regulated in sclerotic osteoblasts compared with nonsclerotic osteoblasts. In contrast, parathyroid hormone receptor gene expression was depressed in sclerotic osteoblasts, but bone sialoprotein levels were unchanged. The activities of AP and TGases were increased in sclerotic osteoblasts, while matrix mineralization, revealed by alizarin red staining, was decreased. In parallel, protein synthesis of CPI, OC, OPN, IL-6, IL-8, and TGFbeta1 was significantly higher in sclerotic osteoblasts than in nonsclerotic osteoblasts, while IL-1beta production was similar in both groups. CONCLUSION: These findings contribute to a better understanding of the mechanisms involved in subchondral bone sclerosis and identify osteoblasts with an altered phenotype as a potential target for future OA therapies. [less ▲]

Detailed reference viewed: 93 (23 ULg)
Full Text
Peer Reviewed
See detailPhenotypic evaluation of interspecific recombinant inbred lines (RILs) of Phaseolus species for their resistance to aluminum and tolerance to aluminum-toxic acid soil under greenhouse conditions
Butare, Louis; Rao, I. M.; Lepoivre, Philippe ULg et al

in Euphytica : International Journal of Plant Breeding (2011)

Aluminium (Al) toxicity limits common bean productivity in acid soil regions of the tropics. To improve Al resistance of common bean, Al-sensitive Phaseolus vulgaris (SER16) was crossed to Alresistant P ... [more ▼]

Aluminium (Al) toxicity limits common bean productivity in acid soil regions of the tropics. To improve Al resistance of common bean, Al-sensitive Phaseolus vulgaris (SER16) was crossed to Alresistant P. coccineus (G35346-3Q) to create 94 F5:6 recombinant inbred lines (RILs) of the pedigree SER16 9 (SER16 9 G35346-3Q). RILs were characterized for resistance to Al in a hydroponic system with 0 and 20 lM Al in solution, and for shoot and root growth response to Al-toxic infertile acid soil in 75 cm long soil cylinder system using an oxisol of low Al- (12.5%; pH 4.6; fertilized) and high Al-saturation (77%; pH 4.1; unfertilized). G35346-3Q increased its taproot elongation rate by 3.5% between 24 and 48 h under 20 lM Al in solution, while the best RIL, Andean genotype ICA Quimbaya, and sensitive genotype VAX1 expressed reductions of 2.6, 12.5, and 69.5%, respectively. In the acid soil treatment the correlation between leaf area and total root length was highly significant under high Al saturation (r = 0.70***). Genotypes that were Al resistant in the hydroponic system were not necessarily tolerant to Al-toxic acid soil conditions based on shoot and root growth responses. Phenotypic evaluation using both systems allows the identification of genotypes with Al resistance combined with acid soil adaptation. Two genotypes (ALB88 and ALB91) emerged as lines with multiple traits. Results suggest that inheritance of Al resistance and acid soil tolerance in G35346-3Q is complex. Results from this work will be useful for identification of molecular markers for Al resistance in Phaseolus species and to improve acid soil adaptation in common bean. [less ▲]

Detailed reference viewed: 54 (5 ULg)
Full Text
Peer Reviewed
See detailPhenotypic heterogeneity of the fibroblast-like cells in the dermis
Pierard-Franchimont, Claudine ULg; Fazaa, B.; Benzarti, H. et al

in Giornale Internazionale di Dermatologia Pediatrica (1994), 6(1), 7-13

The fibroblast-like cell population of the dermis is heterogeneous. The name "fibroblast" appears to be out-dated and should be replaced by terms reflecting with precision the immunophenotype of the cells ... [more ▼]

The fibroblast-like cell population of the dermis is heterogeneous. The name "fibroblast" appears to be out-dated and should be replaced by terms reflecting with precision the immunophenotype of the cells. Among them, dendrocytes type I (Factor XIIIa - positive) and dendrocytes type II (CD34 - positive) are involved in a wealth of pathologic conditions. [less ▲]

Detailed reference viewed: 9 (0 ULg)
See detailPhenotypic plasticity of cerebellar radial glia
Leprince, P; Chanas-Sacré, G; Nguyen, L et al

Poster (2001)

Detailed reference viewed: 2 (0 ULg)
Peer Reviewed
See detailPhenotypic sex reversal of blue tilapia under constant and fluctuating thermal regimes, and its adaptive and evolutionary implications
Baras, E.; Prignon, Christian ULg; Gohoungo, G. et al

in Journal of Fish Biology (2000), 192

Detailed reference viewed: 15 (5 ULg)
Full Text
Peer Reviewed
See detailPhenotypic traits variation among native diploid, native tetraploid and invasive tetraploid Senecio inaequidens DC. (Asteraceae)
Monty, Arnaud ULg; Maurice, Sandrine; Mahy, Grégory ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2010), 14(4), 627-632

Senecio inaequidens DC. is a rapidly spreading plant invader in Europe. In its native range, it occurs at two co-existing diploid and tetraploid cytotypes. To date, only tetraploids are reported in Europe ... [more ▼]

Senecio inaequidens DC. is a rapidly spreading plant invader in Europe. In its native range, it occurs at two co-existing diploid and tetraploid cytotypes. To date, only tetraploids are reported in Europe, even though invasive diploids were recorded in other parts of the world. We compared native diploid and both native and invasive tetraploid populations in common gardens in Europe for a suite of life history traits. Diploids were able to develop, showed high biomass production and produced more flower heads than tetraploids. In contrast, winter survival was null for diploids. It was low for native tetraploids, but reached 40% in invasive tetraploids. Results suggested that diploid cytotype tends to an annual life form when grown in Western Europe, with earlier and more abundant flowering. In contrast, the tetraploid cytotype was mainly perennial which may enhance its invasiveness. [less ▲]

Detailed reference viewed: 22 (2 ULg)
Full Text
Peer Reviewed
See detailPhenotypic variability among patients with hyperornithinaemia-hyperammonaemia-homocitrullinuria syndrome homozygous for the delF188 mutation in SLC25A15
Debray, François-Guillaume ULg; Lambert, M.; Lemieux, M. et al

in Journal of Medical Genetics (2008), 45(11), 759-764

Detailed reference viewed: 13 (1 ULg)
Full Text
Peer Reviewed
See detailPhenotypic variation in live weight and live-weight changes of lactating Holstein-Friesian cows
Koenen, Epc.; Groen, Af.; Gengler, Nicolas ULg

in Animal Science (1999), 68

This study quantified individual phenotypic variation in live weight and live-weight changes during the first three lactations and estimated the effects of age, lactation week and pregnancy on live weight ... [more ▼]

This study quantified individual phenotypic variation in live weight and live-weight changes during the first three lactations and estimated the effects of age, lactation week and pregnancy on live weight. Data comprised weekly averaged live weight (calculated from daily observations) during 452 lactations of 239 Holstein-Friesian cows. Unadjusted mean live weights were 553 (s.d. 50), 611 (s.d. 55) and 654 (s.d. 57) kg during first, second and third parity, respectively. Estimated effect of growth during parity was 46, 52 and 23 kg for the first three parities. Mean maximum weight loss was 26, 22 and 22 kg for first, second and third parity and variation was large among individuals. Week of lactation when cows had their maximum weight loss ranged from 7 weeks in first lactation to 13 weeks in third lactation. Estimated maximum effect of pregnancy on live weight during the lactation varied from 27 to 59 kg. Phenotypic variance in live weight increased with parity. Repeatabilities of live-weight observations within parity were 0.85. Across parities, high repeatabilities were found for calving weight and mean live weight but not for parameters associated with maximum weight loss. Correlations between weekly means and mean live weight during the whole of lactation were high. It was concluded that single live-weight observations of heifers are a good measurement of mean live weight during the first three parities. [less ▲]

Detailed reference viewed: 94 (6 ULg)