DSpace Communauté:

Mise en évidence de la caractérisation variétale la distinction inter variétale et contrôle de l’homogénéité de quatre variétés de blé dans la région de Guelma (Algérie)

2015-03-23T12:39:10Z

Titre: Mise en évidence de la caractérisation variétale la distinction inter variétale et contrôle de l’homogénéité de quatre variétés de blé dans la région de Guelma (Algérie) Auteur(s): Slimani, A.; Mebarkia, A.; Houd, K. Résumé: In the setting of the D.H.S. (Distinction, Homogeneity and stability) works. Our survey has been achieved on the homogeneity controlof four variety wheat (two durum wheat and two bread wheat) has shortcoming their morphological characterization, in beginning generation G.0, cultivated in the field stages (ear emergence, blooming stage, milk development stage and ripping stage) such as recommended by U.P.O.V. (International Union of theplant Obtaining Protection).It comes out again that the two varieties studied for every species (durum wheat and bread wheat) are morphologically distinct, as well as homogeneity for variety is very strong.

Maintien en État de Fonctionnement des Machines à Traire en Pot pour Vaches dans la Région de Sousse (Tunisie)

2015-03-23T12:38:53Z

Titre: Maintien en État de Fonctionnement des Machines à Traire en Pot pour Vaches dans la Région de Sousse (Tunisie) Auteur(s): M’SADAK, Y.; MAKHLOUF, M.; HAMED, I. Résumé: The objective of this study was to diagnose the situation and the state of operation of milking machines in jar in Sousse region, semi-arid littoral zone of Tunisia. This study was performed in among a sampleof 30 small and mediumdairy cattle farms aboveground. These herds subjected to mechanical milking in jar, have a size of 3 to 25 Lactation Cows per herd (average 10). The diagnosis implemented consists essentially to detect the identification and the main technical characteristics, to visually assess the general condition of cleaning and maintenance of equipments of milking and to test partially their operation, using a pulsator tester. This diagnosis revealed that milking equipment encountered is diverse on plans brand andorigin and that is mainly poorly cleaned and poorly maintained. In addition, operation milking machines controlled was not satisfactory in most cases. Someabnormal failures werenoted for parameters of vacuum and pulsation. The effects of the milking machine and of the milking of cows on mammary health remain to be evaluated for a better control for mastitis treatment.

Path coefficient analysis of body weight and body measurements in Red Sokoto goats (Caprahircus l.) of Niger State, Nigeria

2015-03-23T12:39:28Z

Titre: Path coefficient analysis of body weight and body measurements in Red Sokoto goats (Caprahircus l.) of Niger State, Nigeria Auteur(s): Egena, S.S.A.; Tsado, D.N.; Kolo, P.; Shehu-Adisa, M. Résumé: Indigenous Red Sokoto goats raised under extensive system of management were used to evaluate the relationship between bodyweight (BW), head length (HL), head width (HW), height at withers (HAW), chest depth (CD), chest girth (CG), shin circumference (SC) and body length (BL). The objective of the study was to assess variability among body weight and its related characters using path coefficient analysis. Pair wise correlation between body weight and linear body measurements were positive and mostly significant (r= 0.053 - 0.826 in males; -0.020 - 0.667 in females and 0.072 – 0.690 in the combined population; P<0.05, 0.01). Path analysis showed that chest depth, shin circumference and body length made the greatest direct effect on body weight in male, female and the combined population (path coefficient = 0.360, 0.341 and 0.322, respectively) while the least direct effect was observed for height at withers, chest depth and height at withers in the male, female and the combined population (path coefficient = -0.019, -0.104 and -0.001 respectively). The optimum linear regression model with a coefficient of determination (R 2 ) value of 0.684, 0.635 and 0.628 included forecastindices such as chest depth and body length in the male, head length, height at withers, chest depth, chest girth, shin circumference and body length in the female and head length, head width, chest girth, shin circumference and body length in the combined population. The optimum regression equations could be used in predicting body weight of indigenous goats in the field and for selection purposes

Etude physico chimique et évaluation de l’activité antibactérienne des huiles essentielles de la Sarriette des montagnes vis à vis des bactéries isolées des infections urinaires

2015-03-23T12:38:37Z

Titre: Etude physico chimique et évaluation de l’activité antibactérienne des huiles essentielles de la Sarriette des montagnes vis à vis des bactéries isolées des infections urinaires Auteur(s): ARAB, K.; BOUCHENAK, O; YAHIAOUI, K. Résumé: Essential oils have significant antimicrobial activities and can successfully replace antibiotics that show their inefficiencies against resistant microorganisms (Jonkers, 1999). The objective of this study is to develop the use of essential oil of savory mountains to struggle against urinary tract infections. The extraction is carried out by hydrodistillation. Analysis of essential oils is performed by GC / MS. The antibacterial activity is highlighted by the diffusion on agar medium method. The results showedthat the essential oil of savory mountains is liquid pale yellow colored, having an aromatic odor, fresh and camphor and chemotype carvacrol (20.85%). Moreover, aromatogram indicates a very important activity of this essential oil on the growth of bacteria isolated from urinary tract infection. The MIC obtained for all the strains tested is that of the crude extract, with a value of 0.1 g/ l. In view of these results, the essential oil of savory mountains seems to be appropriate to treat urinary tract infections.