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Auteur Mohamed Laid Haddi |
Documents disponibles écrits par cet auteur (3)
Affiner la recherche Interroger des sources externesAnalyse comparée des constituants nutritionnels et des caractéristiques physio-chimiques de résidus de l'industrie agroalimentaire et de certains aliments conventionnels destinés aux ruminants / Hind Boudersa
Titre : Analyse comparée des constituants nutritionnels et des caractéristiques physio-chimiques de résidus de l'industrie agroalimentaire et de certains aliments conventionnels destinés aux ruminants Type de document : texte imprimé Auteurs : Hind Boudersa, Auteur ; Mohamed Laid Haddi, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 75 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieIndex. décimale : 570 Sciences de la vie. Biologie Diplôme : Magistère En ligne : ../theses/biologie/BOU6665.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9808 Analyse comparée des constituants nutritionnels et des caractéristiques physio-chimiques de résidus de l'industrie agroalimentaire et de certains aliments conventionnels destinés aux ruminants [texte imprimé] / Hind Boudersa, Auteur ; Mohamed Laid Haddi, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 75 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieIndex. décimale : 570 Sciences de la vie. Biologie Diplôme : Magistère En ligne : ../theses/biologie/BOU6665.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9808 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6665 BOU/6665 Thèse Bibliothèque principale Thèses Disponible
Titre : Conversion microbienne des résidus de biomasse agro-alimentaire et leur valorisation en alimentation animale. Type de document : texte imprimé Auteurs : Maroua Lifa ép Benathmane, Auteur ; Mohamed Laid Haddi, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 176 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Biotechnologie et Génomique Végétales Résidus de l’industrie agroalimentaire valorisation alimentation des ruminants fermentescibilité in vitro microflore ruminale enrichissement en protéines Agro-industrial by-products valorization ruminants feeding in vitro fermentability rumen microflora micrabial protein enrichment بقايا الصناعات الغذائية التثمين تغذية المجترات التخمر المخبري ميكروبات الكرش تخصيب البروتين Index. décimale : 570 Sciences de la vie. Biologie Résumé :
This study was conducted in order to evaluate the possibility of valorization of agro-industrial by-products and their integration as alternative feeds for ruminants. In this context, three residues from food industry: tomato peels, orange pulp, and apple pomace were tested alone and mixed with fibrous forage: milk thistle (Sylibum marianum L. Gaertn.), crown daizy (Chrysanthemum corpnarium L.), and Hay. The physico-chemicals aspects were evaluated by the determination of chemical composition and the measurement of buffering capacity and pH. The metabolic aspects were evaluated by the in vitro degradation kinetics of substrates and the apparent degradability. A test for microbial protein enrichment of by-products was evaluated using two types of culture media and three successive fermentations, and various levels of nitrogen. Chemical composition results show that by-products contain relatively low fiber content (7.48-26.02%), high total sugars (31.25-77.76%) but low protein (2.26-5.75%), with the exception of tomato residues, which are diferent from the other substrates by moderately high
protein content (12.1%). The study of in vitro fermentability of substrates alone by rumen microflora shows that byproducts are easily metabolized. In comparison to fibrous plants, they produce significantly (P<0.05) more gas (203.4- 239.5 ml / g DM) with higher rates (0.108-0.144 b/h), and halftimes gas production (3.8 9-6.41 hrs), and shorter lag times (0.19- 0.48 h). The mixture (50 %: 50 %) with fibrous forage improved degradability of the latter (19.5%) while reduced the total volume gas (29.6%), gas production rate (28.6%) , and improved half-time of gas production (28.77%) and final ruminal pH (0.10 units) of by-products. Protein balance shows that a greater protein gain is recorded when oranges by-products were incubated alone (74.8%) or mixed with milk thistle (41.9%). In contrast, a protein loss is reported for tomato residues (3.4%) and for their mixture with milk thistle (10.2%). Microbial protein synthesis was higher when the culture medium is composed of an organic nitrogen source (simplified media) (27.6%) only when mineral nitrogen is used (Menke media) (14.5%). The amount (ml) of ruminal fluid also affected protein gain, which is higher (34%) when a low amount of inoculum is incubated (5 ml). Repeated fermentation strongly affected (P <0.0001) microbial protein synthesis which decreased gradually from the first (55.6%) to the third incubation (-6.4%). In conclusion, with the exception of mixtures of hay with a residues and mixture of oranges by-product: crown daizy all binary mixtures (50:50) with Sylibum marianum and Chrysanthemum coronarium could used as alternative feeds that can meet needs of ruminal flora while being compatible with its activity. In addition, oranges by-products are a promising substrate for the production of protein-enriched feeds.
Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/LIF7616.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11452 Conversion microbienne des résidus de biomasse agro-alimentaire et leur valorisation en alimentation animale. [texte imprimé] / Maroua Lifa ép Benathmane, Auteur ; Mohamed Laid Haddi, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2020 . - 176 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Biotechnologie et Génomique Végétales Résidus de l’industrie agroalimentaire valorisation alimentation des ruminants fermentescibilité in vitro microflore ruminale enrichissement en protéines Agro-industrial by-products valorization ruminants feeding in vitro fermentability rumen microflora micrabial protein enrichment بقايا الصناعات الغذائية التثمين تغذية المجترات التخمر المخبري ميكروبات الكرش تخصيب البروتين Index. décimale : 570 Sciences de la vie. Biologie Résumé :
This study was conducted in order to evaluate the possibility of valorization of agro-industrial by-products and their integration as alternative feeds for ruminants. In this context, three residues from food industry: tomato peels, orange pulp, and apple pomace were tested alone and mixed with fibrous forage: milk thistle (Sylibum marianum L. Gaertn.), crown daizy (Chrysanthemum corpnarium L.), and Hay. The physico-chemicals aspects were evaluated by the determination of chemical composition and the measurement of buffering capacity and pH. The metabolic aspects were evaluated by the in vitro degradation kinetics of substrates and the apparent degradability. A test for microbial protein enrichment of by-products was evaluated using two types of culture media and three successive fermentations, and various levels of nitrogen. Chemical composition results show that by-products contain relatively low fiber content (7.48-26.02%), high total sugars (31.25-77.76%) but low protein (2.26-5.75%), with the exception of tomato residues, which are diferent from the other substrates by moderately high
protein content (12.1%). The study of in vitro fermentability of substrates alone by rumen microflora shows that byproducts are easily metabolized. In comparison to fibrous plants, they produce significantly (P<0.05) more gas (203.4- 239.5 ml / g DM) with higher rates (0.108-0.144 b/h), and halftimes gas production (3.8 9-6.41 hrs), and shorter lag times (0.19- 0.48 h). The mixture (50 %: 50 %) with fibrous forage improved degradability of the latter (19.5%) while reduced the total volume gas (29.6%), gas production rate (28.6%) , and improved half-time of gas production (28.77%) and final ruminal pH (0.10 units) of by-products. Protein balance shows that a greater protein gain is recorded when oranges by-products were incubated alone (74.8%) or mixed with milk thistle (41.9%). In contrast, a protein loss is reported for tomato residues (3.4%) and for their mixture with milk thistle (10.2%). Microbial protein synthesis was higher when the culture medium is composed of an organic nitrogen source (simplified media) (27.6%) only when mineral nitrogen is used (Menke media) (14.5%). The amount (ml) of ruminal fluid also affected protein gain, which is higher (34%) when a low amount of inoculum is incubated (5 ml). Repeated fermentation strongly affected (P <0.0001) microbial protein synthesis which decreased gradually from the first (55.6%) to the third incubation (-6.4%). In conclusion, with the exception of mixtures of hay with a residues and mixture of oranges by-product: crown daizy all binary mixtures (50:50) with Sylibum marianum and Chrysanthemum coronarium could used as alternative feeds that can meet needs of ruminal flora while being compatible with its activity. In addition, oranges by-products are a promising substrate for the production of protein-enriched feeds.
Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/LIF7616.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11452 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité LIF/7616 LIF/7616 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude des cinétiques de dégradation des résidus agro-alimentaires par la flore bactérienne ruminale, in vitro, en présence de différentes sources d’azote. Type de document : texte imprimé Auteurs : Asma Aggoun, Auteur ; Mohamed Laid Haddi, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 133 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Microbiologie: Biotechnologies microbiennes, Génomes et Environnement résidus agro-alimentaires microflore ruminale source d’azote chrysanthèmes cardes agri-food by product ruminal microflora nitrogen source chrysanthemum milk thistle بقايا الأغذية الزراعية ميكروفلورا الكرش مصدر النيتروجين الأقحوان السلبين المريمي Index. décimale : 570 Sciences de la vie. Biologie Résumé :
Five fermentation media supplemented with different nitrogen sources have been used in this work in order to study their effect on the fermentation of two by products from the agri-food industry and two fibrous plants. The first medium is a simplified medium that contains ammonium bicarbonate (source of inorganic nitrogen); the second medium contains sodium glutamate (source of organic nitrogen); the third medium contains potassium nitrate (source of inorganic nitrogen), the fourth medium contains yeast extract (source of organic nitrogen) and the fifth medium is a control without nitrogen. In addition to sodium bicarbonates as the main buffer in all media. Our objective is to measure the in vitro fermentability of four substrates: orange residues, tomato residues, milk thistle (Silybum marianum) and chrysanthemum (Chrysanthemum coronarium) by the bacterial microbiota of dairy cows. In a first experiment, we evaluated the chemical composition of the four substrates such as: dry matter, organic matter, mineral mater, crude protein, plant wall components, total sugars. As well as the fermentation profiles during 120 h long. While in a second experiment, we analyzed the degradability of dry matter, the degradability of neutral detergent fiber fraction, the production of
ammonia nitrogen and the production of volatile fatty acids after a 24-hour incubation of orange residues and milk thistle in three different media from the nitrogen source, the first one is used as a control N1 (without nitrogen), the second medium contains ammonium bicarbonate,N2 and the third medium contains sodium glutamate, N3. Thus the chemical composition shows that tomato residues contain the highest crude protein content (9,03 ± 0,9 % DM) and the lowest amount was recorded in chrysanthemum (2,43 ± 0,15 % DM). In addition, the plants contain higher values in NDF compared to by products, we observed 78,98 ± 0,33 % DM in chrysanthemum and 68,8 ± 0,78 % DM in milk thistle while in orange residues it was 15,7 ± 0,09 % DM and tomato residues 33,09 ± 0,35 % DM. The orange residues and tomato residues have more total sugars (40,07 ± 4,69 and 28,49 ± 5,5 % DM, respectively) than fibrous plants (8,42 ± 1,53 and 12,73 ± 4,75 % DM in milk thistle and chrysanthemum respectively). After 120 h of fermentation, the final pH of mixtures (substrate + incubation medium) is in the optimal range 6,38-7,28. Tomato residues and milk thistle have the significantly (p < 0,05) highest fermentability in the media containing an organic nitrogen source: sodium glutamate and yeast extract. The degradability of orange residues and tomato residues is higher than the degradability of milk thistle and chrysanthemum in all media because of their chemical composition where there is a high content of non fibrous carbohydrates and low fiber content, which allowed rumen bacteria to easily and rapidly degrade by products. However, we notice that orange residues are statistically (p < 0,05) most favorable for degradation in all media compared to other substrates. In vitro fermentation analysis of substrates is similar with both statistical models, but it is advisable to use the logistic model which is closer to the experimental results. According to the results of the second experiment, orange residues and milk thistle are favorable for ruminants and will not cause any risk of acidosis despite the high production of volatile fatty acids in N3 media (sodium glutamate) relative to the control N1.Note de contenu :
Annexes.Diplôme : Doctorat En ligne : ../theses/biologie/AGG7551.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11389 Etude des cinétiques de dégradation des résidus agro-alimentaires par la flore bactérienne ruminale, in vitro, en présence de différentes sources d’azote. [texte imprimé] / Asma Aggoun, Auteur ; Mohamed Laid Haddi, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2019 . - 133 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Microbiologie: Biotechnologies microbiennes, Génomes et Environnement résidus agro-alimentaires microflore ruminale source d’azote chrysanthèmes cardes agri-food by product ruminal microflora nitrogen source chrysanthemum milk thistle بقايا الأغذية الزراعية ميكروفلورا الكرش مصدر النيتروجين الأقحوان السلبين المريمي Index. décimale : 570 Sciences de la vie. Biologie Résumé :
Five fermentation media supplemented with different nitrogen sources have been used in this work in order to study their effect on the fermentation of two by products from the agri-food industry and two fibrous plants. The first medium is a simplified medium that contains ammonium bicarbonate (source of inorganic nitrogen); the second medium contains sodium glutamate (source of organic nitrogen); the third medium contains potassium nitrate (source of inorganic nitrogen), the fourth medium contains yeast extract (source of organic nitrogen) and the fifth medium is a control without nitrogen. In addition to sodium bicarbonates as the main buffer in all media. Our objective is to measure the in vitro fermentability of four substrates: orange residues, tomato residues, milk thistle (Silybum marianum) and chrysanthemum (Chrysanthemum coronarium) by the bacterial microbiota of dairy cows. In a first experiment, we evaluated the chemical composition of the four substrates such as: dry matter, organic matter, mineral mater, crude protein, plant wall components, total sugars. As well as the fermentation profiles during 120 h long. While in a second experiment, we analyzed the degradability of dry matter, the degradability of neutral detergent fiber fraction, the production of
ammonia nitrogen and the production of volatile fatty acids after a 24-hour incubation of orange residues and milk thistle in three different media from the nitrogen source, the first one is used as a control N1 (without nitrogen), the second medium contains ammonium bicarbonate,N2 and the third medium contains sodium glutamate, N3. Thus the chemical composition shows that tomato residues contain the highest crude protein content (9,03 ± 0,9 % DM) and the lowest amount was recorded in chrysanthemum (2,43 ± 0,15 % DM). In addition, the plants contain higher values in NDF compared to by products, we observed 78,98 ± 0,33 % DM in chrysanthemum and 68,8 ± 0,78 % DM in milk thistle while in orange residues it was 15,7 ± 0,09 % DM and tomato residues 33,09 ± 0,35 % DM. The orange residues and tomato residues have more total sugars (40,07 ± 4,69 and 28,49 ± 5,5 % DM, respectively) than fibrous plants (8,42 ± 1,53 and 12,73 ± 4,75 % DM in milk thistle and chrysanthemum respectively). After 120 h of fermentation, the final pH of mixtures (substrate + incubation medium) is in the optimal range 6,38-7,28. Tomato residues and milk thistle have the significantly (p < 0,05) highest fermentability in the media containing an organic nitrogen source: sodium glutamate and yeast extract. The degradability of orange residues and tomato residues is higher than the degradability of milk thistle and chrysanthemum in all media because of their chemical composition where there is a high content of non fibrous carbohydrates and low fiber content, which allowed rumen bacteria to easily and rapidly degrade by products. However, we notice that orange residues are statistically (p < 0,05) most favorable for degradation in all media compared to other substrates. In vitro fermentation analysis of substrates is similar with both statistical models, but it is advisable to use the logistic model which is closer to the experimental results. According to the results of the second experiment, orange residues and milk thistle are favorable for ruminants and will not cause any risk of acidosis despite the high production of volatile fatty acids in N3 media (sodium glutamate) relative to the control N1.Note de contenu :
Annexes.Diplôme : Doctorat En ligne : ../theses/biologie/AGG7551.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11389 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité AGG/7551 AGG/7551 Thèse Bibliothèque principale Thèses Disponible
