http://dspace.univ-setif.dz:8888/jspui/handle/123456789/245 2026-05-14T10:22:11Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/360 Titre: Impact des différents systèmes de cultures sur la culture de blé tendre (Triticum aestivum, L), var. HD 1220 en conditions semi-aride Auteur(s): MEKHLOUF, A.; MAKHLOUF, M.; BOUNECHADA, M.; KEROUGLI, S.; AÏT OUALI, A. Résumé: l’expérimentation a été conduite sur un site expérimental longue durée de la station ITGC de Sétif durant la campagne 2009/2010. L’objectif est d’étudier l’effet des systèmes de cultures, semis direct (SD), techniques culturales simplifiées (TCS) et travail conventionnel (TC) et les précédents (blé, avoine, lentille) sur le comportement de la culture et voir les répercussions engendrées à moyen long terme sur les propriétés physico-chimiques du sol. A ce sujet plusieurs variables liées à la culture ont été étudiées et analysées statistquement. Les résultats obtenus ont révélé un effet sustème de culture et des précédents culturaux sur le rendement et ses composantes. 2011-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/357 Titre: Rate of weaning in the Ouled-Djallel breed sheep Auteur(s): Menani; Dekhili; Khilifi Résumé: Lamb survival of 327 progeny of Ouled-Djellal ewes was investigated. There was no difference in survival rate between singles (88%), twins (80%) and triplets (88%). The second main effect, sex there was a significant difference between males (81%) and females (89%), showing a difference of 8% (P<0.05). The overall mean lamb survival rate was of 85%. The majority of lamb died (58.8%) during the first week from non-genetic effect. It is suggested that nutritional management and absence of care of the ewe was a fault. 2011-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/355 Titre: Caractérisation morphologique des ovins dans la région Tellienne de Sétif (Algérie) Auteur(s): Mouyat, L.; Dekhili, M.; Boulassel, R. Résumé: This investigation is the first one which has concerned twelve traits and concerned twenty flocks of sheep located in North of Setif area of Algeria. Data were analyzed using discriminant analysis; the aim was to identify the most discriminant traits, rate of distinction between flocks and to describe morphologically the flocks under investigation. According to our results, body height and body length were the most discriminant for the first axis, and ears form and tail length were discriminant for the second axis. Flocks were different from each other and the correct classification for all flocks was 50 % 2011-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/353 Titre: Effet insecticide des plantes Melia azedarach L. et Peganum harmala L. sur Tribolium castaneum Herbst (Coleoptera:Tenebrionidae) Auteur(s): Bounechada, M.; Arab, R. Résumé: The main of this work is to evaluate in laboratory conditions, the insecticidal effect of two medicinal plants Melia azedarach and Peganum harmala on stored grain pest Tribolium castaneum. Three doses of the powder fruits of these plants were tested 10, 15, and 30%. The results show that the LT50 of larvae and adults varied between 3.9 days and 5.5 days, with the powder of M. azedarach, 6.8 days and 12.6 days with the powder of P. harmala respectively. The response of larvae is better than adults, whatever the plant and the dose used. The fruits of M. Azedarach were more toxic than those of P. harmala 2011-01-01T00:00:00Z