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See detailInsectes ravageurs: Protection des grains stockés
Mignon, Jacques ULg; Haubruge, Eric ULg; Gaspar, Charles

in Agricontact (1996), 287

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See detailLes insectes, des aliments?
Blecker, Christophe ULg

Conference (2013, March 28)

Detailed reference viewed: 8 (0 ULg)
See detailLes insectes, des aliments?
Blecker, Christophe ULg

Conference (2014, May 02)

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See detailLes insectes: Jardiniers du diable, templier de Lucifer
Verheggen, François ULg

Conference given outside the academic context (2013)

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See detailInsecticidal activity of Boscia senegalensis (Pers.) Lam ex Poir. on Caryedon serratus (Ol.) pest of stored groundnuts
Gueye, Momar Talla; Seck, Dogo; Ba, Seynabou et al

in African Journal of Agricultural Research (2011), 6(30), 6348-6353

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See detailInsecticidal effect of Jatropha curcas oil on the aphid Aphis fabae (Hemiptera: Aphididae) and on the main insect pests associated with cowpeas (Vigna unguiculata) in Niger
Abdoul Habou, Zakari; Haougui, A.; Mergeai, Guy ULg et al

in Tropicultura (2011), 29(4), 225-229

The insecticidal activity of Jatropha curcas has been evaluated on various crop pests. Oil concentrations of 0.5, 1, 2.5, 5, 10 and 15% were first tested on the black bean aphid (Aphis fabae Scop.) as ... [more ▼]

The insecticidal activity of Jatropha curcas has been evaluated on various crop pests. Oil concentrations of 0.5, 1, 2.5, 5, 10 and 15% were first tested on the black bean aphid (Aphis fabae Scop.) as part of an efficacy test conducted in the laboratory. During a second stage, the insecticidal efficacy of 5 and 7.5% oil concentrations was evaluated on the main pests infesting cowpea crops (Vigna unguiculata L.) as part of a field test conducted at the University of Niamey (Niger). The results obtained in the two tests demonstrate the biocidal effect of the treatments applied, which increases with the concentration. On the black bean aphid, the biocidal effect increases during the hours following the application of oil before reaching a peak after 4 days. On cowpeas, J. curcas oil concentrations of 5% and 7.5% make it possible to reduce the level of attack by aphids (Aphis craccivora) by 10 and 50% respectively compared to the control. A 50% and 75% fall in the number of thrips (Megalurothrips sjöstedti) and bugs (Anoplocnemis curvipes), respectively, can be observed under the same conditions. This treatment made it possible to greatly increase yields compared to the untreated control. [less ▲]

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See detailInsecticide activity of surfactins and iturins from a biopesticide Bacillus subtilis Cohn (S499 strain)
Assié, Lazar; Deleu, Magali ULg; Arnaud, Ludovic et al

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (2002), 67(3), 647-655

Surfactin C14, surfactin C15, and iturin C15 are lipopeptides purified from Bacillus subtilis (S499 strain). They were incorporated into the artificial diet of the fruit fly Drosophila melanogaster to ... [more ▼]

Surfactin C14, surfactin C15, and iturin C15 are lipopeptides purified from Bacillus subtilis (S499 strain). They were incorporated into the artificial diet of the fruit fly Drosophila melanogaster to assess their potential insecticidal activities. Surfactins with long fatty acid chains (C14 and C15) had an insecticidal effect on the fruit fly, D. melanogaster. On the contrary, iturin was not toxic to D. melanogaster. At 100 ppm, surfactin C14 and C15 caused 85.4 and 92.6% adult mortality, respectively, after a one-day exposure. F1 progeny fly emergence inhibition by C14 and C15 were 79.8 and 91.3%, respectively. To check whether the biocide activity of lipopeptides was due to their surface-active properties, detergent Triton X100, SDS, CTAB, and Tween 80 were tested. No adult mortality was recorded with the detergents but Triton X100 and SDS showed F1 progeny emergence inhibition similar to that of surfactins. We showed that there was a dose-response activity with surfactin C15 [less ▲]

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See detailInsecticide resistance enhances male reproductive success in a beetle
Arnaud, Ludovic; Haubruge, Eric ULg

in Evolution (2002), 56(12), 2435-2444

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See detailInsecticide resistance gene transmission by insecticide-susceptible insects
Arnaud, Ludovic; Callaghan, Amanda; Haubruge, Eric ULg

in Functional Ecology (2001)

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See detailL'insécurité dans tous ses états...
Casman, Marie-Thérèse ULg; Hougardy, Lionel ULg; Lemaître, André ULg et al

in Bawin-Legros, Bernadette (Ed.) Familles, modes d'emploi. Etude sociologique des ménages belges (1999)

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See detailInsécurité et exclusion : Deux revers d’une même médaille ?
Born, Michel ULg; Hougardy, Lionel ULg; Lemaître, André ULg

in Bawin-Legros, B.; Stassen, J. (Eds.) L’exclusion et l’insécurité d’existence en milieu urbain (2001)

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See detailInsécurité: Un premier état des savoirs
Franssen, Abraham; Cartuyvels, Yves; Hubert, Hughes-Olivier et al

Report (2003)

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See detailL'insegnamento del diritto romano nel Belgio nel 2010
Gerkens, Jean-François ULg

Conference (2010, November 12)

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See detailThe inseminating bull and plasma pregnancy-associated glycoprotein levels were related to peripheral leukocyte counts during the late pregnancy/early postpartum period in high-producing dairy cows.
Abdelfatah-Hassan, A.; Almeria, S.; Serrano, B. et al

in Theriogenology (2012), 77(7), 1390-1397

The interest in the immunology and endocrinology aspects of the peripartum in dairy cows has been increasing in the last years, since the animal status during the pre- and postpartum period determines the ... [more ▼]

The interest in the immunology and endocrinology aspects of the peripartum in dairy cows has been increasing in the last years, since the animal status during the pre- and postpartum period determines the subsequent productive and reproductive performance of the animal. At parturition, a drop in the immune functions of the peripheral blood polymorph-nuclear cells (PMN) was observed after a peak of Pregnancy-Associated Glycoproteins (PAGs) and recently, the inseminating bull was found to affect the plasma levels of bovine Pregnancy-Associated Glycoproteins (bovine PAGs) in the pregnant Holstein-Friesian dairy cows. The present work was aimed to determine whether changes in leukocyte counts during the peripartum, indicative of the animal immune status, could be related to the inseminating bull and to the levels of plasma pregnancy-associated glycoproteins (PAGs). Ninety six clinically healthy, single pregnant cows were selected in a commercial dairy herd. Six blood samples (four prepartum and two postpartum) were obtained every two weeks, and total and differential blood cell counts were analyzed. Based on procedures of General Linear Model analysis of variance for repeated measures, the inseminating bull affected counts of total leukocytes and lymphocytes (P<0.001; between-subject effects) throughout the peripartum period. In addition, cows with high plasma levels of PAGs (>900 ρg/µL) on Day 262-268 of gestation had higher numbers of total leukocytes and neutrophils throughout the peripartum period (P<0.001; between-subject effects). Young animals (≤ 1 lactation) had higher total leukocyte and lymphocytes counts than older cows (two or more lactations) throughout the study period. These results showed a clear relationship between the inseminating bull and plasma PAG levels and peripheral leukocyte counts during the peripartum period of dairy cows. [less ▲]

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See detailInsémination artificielle des vaches ‘Azawak’ et taurin ‘Gourunsi’ au Burkina Faso
Zongo, M.; Boly, H.; Sawadogo, L. et al

in Tropicultura (2001), 19(2), 75-78

La synchronisation des chaleurs et la fertilité en insémination artificielle des zébus ‘Azawak’ (Bos indicus, n = 66) et des taurins ‘Gourunsi’ (Bos taurus, n = 20) ont été appréciées en zone périurbaine ... [more ▼]

La synchronisation des chaleurs et la fertilité en insémination artificielle des zébus ‘Azawak’ (Bos indicus, n = 66) et des taurins ‘Gourunsi’ (Bos taurus, n = 20) ont été appréciées en zone périurbaine soudano-sahélienne de Ouagadougou au Burkina Faso. La synchronisation a été effectuée avec des implants sous cutanés de progestagène placés sous la peau de l’oreille pendant 10 jours. Le traitement a été complété par l’injection de prostaglandine F2 et de PMSG, respectivement au 8ième et au 10ième jours de la pose de l’implant. Le taux d’œstrus induits observés par l’éleveur était de 94,2% dans les 48 heures qui suivaient le retrait de l'implant. Il variait significativement (P<0,05) selon les groupes zébus ‘Azawak’ et taurins ‘Gourunsi’ (100% et 75%, respectivement). Les taux de fertilité, déterminés par palpation rectale chez les zébus ‘Azawak’ et les taurins ‘Gourunsi’, ont été respectivement 24,2% et 10%. La fertilité a varié selon le moment de l’insémination: lorsque les femelles étaient inséminées 36 à 48 heures après le retrait de l’implant, les taux de fertilité ont été faibles (0 à 12,5% chez les taurins ‘Gourunsi’ et les zébus ‘Azawak’, respectivement). Par ailleurs, lorsque les inséminations étaient réalisées 24 à 36 heures après le retrait de l’implant, les taux de fertilité ont été respectivement de 50% et 42,3%. [less ▲]

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See detailInsémination artificielle et transfert embryonnaire pour limiter la dissémination des maladies contagieuses chez les animaux de rente.
Gonzalez, F; Cabrera, F; Rodriguez, N et al

Conference (2003, November)

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See detailL'insémination artificielle intra-utérine, transpéritonéale chez la chèvre: 2. Etude comparative du taux de fécondation après saillie ou insémination artificielle intra-utérine
Fieni, Francis; Buggin, M.; Tainturier, Daniel et al

in Recueil de Médecine Vétérinaire (1990), 166(5), 479-484

This study was carried out on 570 ovocytes. It shows that goats suprovulated due to FSH treatements of 16 mg Armour given over 3 days (in 8-4-4 mg/day) or 21 mg Armour over 4 days (in 7-6-4-4 mg/day) and ... [more ▼]

This study was carried out on 570 ovocytes. It shows that goats suprovulated due to FSH treatements of 16 mg Armour given over 3 days (in 8-4-4 mg/day) or 21 mg Armour over 4 days (in 7-6-4-4 mg/day) and undergoing a single intra-uterine transperitoneal insemination under endoscopic control, carried out 46h39 after removing the sponges gives a satisfactory rate of fecondation close to 70%. This rate is a more 15 points lower than that obtained by 2 successive matings 12 hours apart (36 and 24 hours after removing the sponges). An FSH treatment of 21 mg Armour over a three day period (mg/day:11,5,5) only gives a fecundity rate of 19,5% in intra-uterine and 56.58 % after mating. This gives a global fecundity rate for all treatments of 50.77% and 80.44% for A.I. through intra-uterine method and mating. [less ▲]

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See detailInseminazione artificiale e transferimento embrionale come stumenti efficace per un miglior controllo sulla transmissione delle malattie infettive
Gonzalez, F; Cabrera, F; Rodriguez, N et al

Conference (2002, May 18)

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See detailInsert'Prof : pour un dispositif d'accompagnement des jeunes enseignants favorisant une insertion réussie dans la vie professionnelle
Beckers, Jacqueline ULg; Andrianne, Sabine; Bourguignon, Luc et al

in L'école, dans quel(s) sens ? Actes du 2e congrès des chercheurs en éducation, Louvain-la-Neuve, 12-13 mars 2002 (2003)

Detailed reference viewed: 91 (7 ULg)