Détail de l'auteur
Auteur Rachid ELgroud |
Documents disponibles écrits par cet auteur (3)
Affiner la recherche Interroger des sources externesAppréciation de l'hygiène globale de l'abattoir de Constantine par l'évaluation de la contamination superficielle des carcasses bovines / Rachid ELgroud
Titre : Appréciation de l'hygiène globale de l'abattoir de Constantine par l'évaluation de la contamination superficielle des carcasses bovines Type de document : texte imprimé Auteurs : Rachid ELgroud, Auteur Année de publication : 1999 Importance : 80 f. Note générale : 01 Disponible à la salle de recherche
02 Disponibles au magasin de la bibliothèque centraleLangues : Français (fre) Catégories : Français - Anglais
Sciences VétérinairesTags : Constantine (Algérie) Bactériologie alimentaire Contamination superficielle Hygiène des viandes Carcasses bovines Abattoir Viande Index. décimale : 636 Sciences Vétérinaires Diplôme : inconnu Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1907 Appréciation de l'hygiène globale de l'abattoir de Constantine par l'évaluation de la contamination superficielle des carcasses bovines [texte imprimé] / Rachid ELgroud, Auteur . - 1999 . - 80 f.
01 Disponible à la salle de recherche
02 Disponibles au magasin de la bibliothèque centrale
Langues : Français (fre)
Catégories : Français - Anglais
Sciences VétérinairesTags : Constantine (Algérie) Bactériologie alimentaire Contamination superficielle Hygiène des viandes Carcasses bovines Abattoir Viande Index. décimale : 636 Sciences Vétérinaires Diplôme : inconnu Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1907 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ELG/3249 ELG/3249 Thèse Bibliothèque principale Thèses Disponible 
Titre : Contamination du poulet de chair par les salmonelles non typhiques en élevages et abbatoirs de la wilaya de Constantine : caractérisations phénotypiques et génotypiques par ERIC-PCR,IS-PCR et PFGE Type de document : texte imprimé Auteurs : Rachid ELgroud, Auteur ; F. Smati, Directeur de thèse ; Y. Millemann, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2009 Importance : 116 f. Format : 30 cm. Note générale : 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C
01 CD 02 Disponibles au magazinLangues : Français (fre) Catégories : Français - Anglais
Sciences VétérinairesTags : Facteurs de risque Sérotypie Salmonelles Viande du poulet Résistance au antibiotiques eric-PCR is-PCR PFGE
Salmonella Broiler Chicken Prevalence Serotype Antibiotic-resistance Risk
factors دجاج اللحوم النوع السيرولوجي مقاومة المضادات الحيوية عوامل الخطرIndex. décimale : 636 Sciences Vétérinaires Résumé : The present study provides the first data about the prevalence of Salmonella contamination of broilers and slaughterhouses in the region of Constantine, Algeria. The serotypes and antibiotic resistance patterns of the isolates were determined, and risk factors contributing to the contamination were evaluated.
A total number of 2490 samples, 1800 originating from 30 broiler farms and 690 from 15 slaughterhouses, were taken during 2 periods: October 2005-June 2006 and September 2006- March 2007. Salmonella contamination concerned 37 % of the broiler farms and 73 % of the slaughterhouses.
Among the 55 isolates recovered, ten different serotypes were identified. The most frequently recovered serotypes in both slaughterhouses and breeder farms were S. Hadar (36.4%, n=20), S.
Virchow (16.4%, n=9), S. Infantis (10.9%, n=6), and S. Albany (10.9%, n=6). S. Carnac (7.3%,n=4). Isolates belonging to S. Heidelberg (1.8%, n=1), and S. Rissen (1.8%, n=1) were found only in farms, while those belonging to S. Typhimurium (9.1%, n=5), S. Enteritidis (3.6%, n=2), and S. Montevideo (1.8%, n=1) were recovered only from slaughterhouses. Thirty nine isolates (79.9 %) were resistant to at least one antibiotic and 50.9 % were multi-resistant, i.e. resistant to two or more antibiotic molecules. Among the 55 isolates, 56.4% (n=31) were resistant to streptomycin, 34.5% (n=19) to tetracyclines, 27.2 % (n=15) to nalidixic acid, 12.7% (n=7) to ofloxacin and 1.8% (n=1) to enrofloxacin. Finally, 7 distinct antibiotic resistance profiles were identified.
In parallel, four risk factors were found that were significantly associated with Salmonella contamination. These risk factors highlight the hazards of the broiler channel, particularly linked to poor technical and hygiene practices.
On the another side, the genotypic characterization of the stocks gave us 16 profiles per EricPCR, 20 profiles by is-PCR and 34 profiles by PFGE. The 3 methods, and particularly the PFGE, showed the clonality of some sérotypes, confirming the diffusion and the persistence of the same clone through the field, and in our area, but also the polymorphism of others sérotypes indicating the diversity of the potential tanks in nontyphoidal salmonella.
The comparison of our PFGE profiles to those of the bank of data of the AFSSA, Maisons Alfort, France, informs us about the diffusion, sometimes international, of some sérotypes, facilitated by the increasing levels of trade, at the eve of the accession of Algeria to the World Trade Organization.Diplôme : Doctorat en sciences En ligne : ../theses/veterinaire/ELG5288.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1868 Contamination du poulet de chair par les salmonelles non typhiques en élevages et abbatoirs de la wilaya de Constantine : caractérisations phénotypiques et génotypiques par ERIC-PCR,IS-PCR et PFGE [texte imprimé] / Rachid ELgroud, Auteur ; F. Smati, Directeur de thèse ; Y. Millemann, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2009 . - 116 f. ; 30 cm.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C
01 CD 02 Disponibles au magazin
Langues : Français (fre)
Catégories : Français - Anglais
Sciences VétérinairesTags : Facteurs de risque Sérotypie Salmonelles Viande du poulet Résistance au antibiotiques eric-PCR is-PCR PFGE
Salmonella Broiler Chicken Prevalence Serotype Antibiotic-resistance Risk
factors دجاج اللحوم النوع السيرولوجي مقاومة المضادات الحيوية عوامل الخطرIndex. décimale : 636 Sciences Vétérinaires Résumé : The present study provides the first data about the prevalence of Salmonella contamination of broilers and slaughterhouses in the region of Constantine, Algeria. The serotypes and antibiotic resistance patterns of the isolates were determined, and risk factors contributing to the contamination were evaluated.
A total number of 2490 samples, 1800 originating from 30 broiler farms and 690 from 15 slaughterhouses, were taken during 2 periods: October 2005-June 2006 and September 2006- March 2007. Salmonella contamination concerned 37 % of the broiler farms and 73 % of the slaughterhouses.
Among the 55 isolates recovered, ten different serotypes were identified. The most frequently recovered serotypes in both slaughterhouses and breeder farms were S. Hadar (36.4%, n=20), S.
Virchow (16.4%, n=9), S. Infantis (10.9%, n=6), and S. Albany (10.9%, n=6). S. Carnac (7.3%,n=4). Isolates belonging to S. Heidelberg (1.8%, n=1), and S. Rissen (1.8%, n=1) were found only in farms, while those belonging to S. Typhimurium (9.1%, n=5), S. Enteritidis (3.6%, n=2), and S. Montevideo (1.8%, n=1) were recovered only from slaughterhouses. Thirty nine isolates (79.9 %) were resistant to at least one antibiotic and 50.9 % were multi-resistant, i.e. resistant to two or more antibiotic molecules. Among the 55 isolates, 56.4% (n=31) were resistant to streptomycin, 34.5% (n=19) to tetracyclines, 27.2 % (n=15) to nalidixic acid, 12.7% (n=7) to ofloxacin and 1.8% (n=1) to enrofloxacin. Finally, 7 distinct antibiotic resistance profiles were identified.
In parallel, four risk factors were found that were significantly associated with Salmonella contamination. These risk factors highlight the hazards of the broiler channel, particularly linked to poor technical and hygiene practices.
On the another side, the genotypic characterization of the stocks gave us 16 profiles per EricPCR, 20 profiles by is-PCR and 34 profiles by PFGE. The 3 methods, and particularly the PFGE, showed the clonality of some sérotypes, confirming the diffusion and the persistence of the same clone through the field, and in our area, but also the polymorphism of others sérotypes indicating the diversity of the potential tanks in nontyphoidal salmonella.
The comparison of our PFGE profiles to those of the bank of data of the AFSSA, Maisons Alfort, France, informs us about the diffusion, sometimes international, of some sérotypes, facilitated by the increasing levels of trade, at the eve of the accession of Algeria to the World Trade Organization.Diplôme : Doctorat en sciences En ligne : ../theses/veterinaire/ELG5288.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1868 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ELG/5288 ELG/5288 Thèse Bibliothèque principale Thèses Disponible
Titre : Evaluation du niveau de stress chez les bovins en période de pré- abattage et son influence sur le métabolisme énergétique musculaire post-mortem Type de document : texte imprimé Auteurs : Slimane Agoud, Auteur ; Rachid ELgroud, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 131 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Sciences VétérinairesTags : Stress pré-abatage Transport Abattage Abattoir Qualité Viande Bovin Pre-slaughter Transportation Slaughter Slaughterhouse Meat quality cattle الإجهاد قبل الذبح النقل الذبح مسلخ جودة اللحوم الماشية Index. décimale : 636 Sciences Vétérinaires Résumé :
The sensory and technological qualities of the meat depend on the conditions of
development of muscle metabolism at the time of slaughter. These later are largely influenced by the physiological state of the animal especially the potential stress reactions.
We were interested on the effects which relate the pre-slaughter procedure and the
characteristics of animals (breed, age, sex) on the level of stress in cattle and the early post mortem muscle metabolism. Therefore, the study was carried on two main slaughterhouses;one in the Bejaia department and the other in Setif. The samples were taken from a farm, For the pH measurement, and post-mortem temperature; they were carried out one hour after the slaughter, then every half an hour, to two hours and a half.
Stress levels expressed by the cortisol concentration are greater in animals of the local breed, and females. The most factors involved in animal stress are: transport, but also the deprivation of food associated with set expectations at slaughterhouses. In the section based on stress and energy metabolism, it has been demonstrated the effect of age. Thus, our results showed that the combination of stress and physical activity in the hours preceding slaughter, can induce early postmortem pH lowering values with early post mortem higher temperatures.
Furthermore, high levels of stress after prolonged hold, associated to the deprivation of food, induces high early postmortem pH values with early lower post mortem temperatures.
In comparison to other researches done in other countries, the results are sustained by certain and do not conform to others. This heterogeneity of the results is due to differences in the animal (breed, species), of farming (feeding, intensive or extensive farming), slaughtering procedures, the study itself (applied protocol and number studied factors and parameters).
Diplôme : Magistère En ligne : ../theses/veterinaire/AGO6933.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10285 Evaluation du niveau de stress chez les bovins en période de pré- abattage et son influence sur le métabolisme énergétique musculaire post-mortem [texte imprimé] / Slimane Agoud, Auteur ; Rachid ELgroud, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2016 . - 131 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Sciences VétérinairesTags : Stress pré-abatage Transport Abattage Abattoir Qualité Viande Bovin Pre-slaughter Transportation Slaughter Slaughterhouse Meat quality cattle الإجهاد قبل الذبح النقل الذبح مسلخ جودة اللحوم الماشية Index. décimale : 636 Sciences Vétérinaires Résumé :
The sensory and technological qualities of the meat depend on the conditions of
development of muscle metabolism at the time of slaughter. These later are largely influenced by the physiological state of the animal especially the potential stress reactions.
We were interested on the effects which relate the pre-slaughter procedure and the
characteristics of animals (breed, age, sex) on the level of stress in cattle and the early post mortem muscle metabolism. Therefore, the study was carried on two main slaughterhouses;one in the Bejaia department and the other in Setif. The samples were taken from a farm, For the pH measurement, and post-mortem temperature; they were carried out one hour after the slaughter, then every half an hour, to two hours and a half.
Stress levels expressed by the cortisol concentration are greater in animals of the local breed, and females. The most factors involved in animal stress are: transport, but also the deprivation of food associated with set expectations at slaughterhouses. In the section based on stress and energy metabolism, it has been demonstrated the effect of age. Thus, our results showed that the combination of stress and physical activity in the hours preceding slaughter, can induce early postmortem pH lowering values with early post mortem higher temperatures.
Furthermore, high levels of stress after prolonged hold, associated to the deprivation of food, induces high early postmortem pH values with early lower post mortem temperatures.
In comparison to other researches done in other countries, the results are sustained by certain and do not conform to others. This heterogeneity of the results is due to differences in the animal (breed, species), of farming (feeding, intensive or extensive farming), slaughtering procedures, the study itself (applied protocol and number studied factors and parameters).
Diplôme : Magistère En ligne : ../theses/veterinaire/AGO6933.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10285 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité AGO/6933 AGO/6933 Thèse Bibliothèque principale Thèses Disponible
