http://dspace.univ-setif.dz:8888/jspui/handle/123456789/249 2026-05-30T19:06:21Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/417 Titre: Le matériel de traitement post-récolte des céréales au Burkina Faso : situation actuelle des équipements de décorticage Auteur(s): TAPSOBA, Y.; BATIONO, P.; SON, G.; YE, S.G. Résumé: Millet, sorghum, maize and rice are the cereals produced in Burkina Faso. They are consumed after mechanized dehulling treatment with hammer, disk or Engelberg dehuller. The dehulled grain quality depends on the type of machine, the grains and the user’s technical ability. A lack of correlations between these parameters led to an unsuccessful dehulling machines introduction in Senegal. This proves that the user must know characteristics of existing dehulling machines and their performances before purchasing them. In Burkina, Indian dehuller Engelberg type is marketed by four traders relayed by regional sellers. The annual sales average is about 912 units. The best raw productivities are as followed 372,88 ± 2,78 kg per hour, 393,93 ± 76,72 kg per hour, 356,94 ± 66,41 kg per hour and 355,39 ± 68,81 kg per hour respectively for UPKAR 1, METRO 2, LYON 7 and LYON 8. Their designed dehulling yields averages varied from 67 to 79 % and are higher than those obtained in Senegal. In terms of low output rates and fuel consumption, LYON 8 and UPKAR1 seem to be the best energy and economic arrangement 2013-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/415 Titre: Quantification des Huiles Essentielles dans deux Espèces de Romarin (Rosmarinus officinalis et Rosmarinus tournefortii) au niveau de Djebel Metllili (Batna) Auteur(s): NEFFAR, F.; BENABDRRAHMENE, Z. Résumé: Une étude quantitative des huiles essentielles dans deux espèces de romarin (Rosmarinus officinalis et Rosmarinus tournefortii) et dans deux expositions (Nord et Sud), est réalisé au niveau de Dj. Metllili. Pour cela nous avons effectué au laboratoire l’extraction de leurs huiles essentielles par l’entrainement à la vapeur, après l’extraction, les huiles ont été analysées par chromatographie sur couche mince. Enfin nous avons calculé les rendements et les rapports frontaux afin de quantifier les huiles essentielles obtenues. Les résultats obtenus montré que ces deux plantes présentent des rendements différents et que l’exposition géographique agit sur le rendement des huiles essentielles. 2013-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/413 Titre: Performances de productions de la poule locale kabyle Auteur(s): AIT KAKI, A.; Moula, N. Résumé: The objective of this study is to evaluate the potential for meat and egg production of the local Kabyle hen through a characterisation of its growth and egg-laying performances. Growth performances have been carried out on 204 chicks over 17 weeks, from March to June 2011. At 16 weeks, the mortality rate was 9.31% and the index of consumption was 6.78. The Gompertz equation adopted as the growth model, led to the following relations. For males: y - 2409 × exp (-3.68 × exp (-0.0260 × t)) ; For females: y - 1835 × exp (-3.71 × exp (-0.0294 × t)) ; Where y is the weight of the chicks in grams, and the their age in days. The egg-laying performance was observed in 38 hens over 52 weeks, from August 2011 to August 2012. On average, egg-laying starts at 166 days of age and a weight of about 1334g. Hens lay on average 173 eggs per year, each weighing between 44 and 53g, on average. The variation in the mean weight is related to the age of the hen. To the light of these results, it seems that the Kabyle hen constitutes a promising local breed both from the points of view of growth in body mass, and egg-laying. From the collected data, it may be possible to develop a selection program to enhance its meat and egg production potentials. 2013-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/411 Titre: Etude floristique et écologique des mauvaises herbes des cultures de la région de Batna Auteur(s): Hannachi, A.; Fenni, M. Résumé: The study of crop weeds in the Batna region during the crop year 2008/2009 covered 114 phytoecological performed on different crops. They were distributed throughout the study area in order to take into account the variability of ecological and agronomic factors. The weed flora has 120 weeds species. Broadleaf weeds are dominant with 98 species (81.66%), monocots include 22 species (18.33%). Species identified are divided into 95 genera and 30 botanical families. The biological type shows that annual dominate and form 69.16% (83 species), perennial 19.16% (23 species) and biennials 11.66% (14 species). A case (01) whose frequency is between 60% and 80%, while ten species (10) between 20 and 40%. Frequency (- 20%) contained in most of the species (109 species). The analysis of the relationship between the relative frequency of species and their abundance-dominance shows average 05 types of species. The results obtained by the AFC show two groups of statements, two species groups and two groups of environmental factors, these results explain the distribution of weeds in crops of Batna region according to climate, crop type and soil conditions. 2013-01-01T00:00:00Z