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Effect of Using Baker＇s Yeast and Exogenous Digestive Enzymes as Growth Promoters on Growth, Feed Utilization and hematological indices of Nile tilapia, Oreochromis niloticus Fingerlings

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Journal of Agricultural Science and Technology(B) 2012年第1期2卷 15-28页

作者： Ashraf Mohamed Abdelsamee Goda Hafez Abdel-Hamid Hassan Mabrouk Mohamed Abd EI-Hamid Wafa Tarek Mohamed E1-Afifi National Institute of Oceanography and Fisheries （NIOF） Fish Nutrition Laboratory Cairo 24135 Egypt Regional Center for Foods and feeds Agriculture Research Center Ministry of Agriculture Cairo 24135 Egypt

The present study was conducted to evaluate the effect of baker yeast, Saccharomyces cerevisiae （SC） and exogenous digestive enzymes （pepsin, papain and a-amylase, EDE） dietary supplementation on growth performance, feed utilization and hematological indices of Nile tilapia, Oreochromis niloticus fingerlings. A total of 630 Nile tilapia fingerlings with an average body weight of 26.4 ± 0.2 g were divided in the seven experimental net-pen treatments （three replicates each）. The experiment was conducted for 119 days. Seven isonitrogenous （26.50%） digestible protein and isocaloric （13.40 MJ kgl） digestible energy experimental diets were formulated. The control diet had no SC and EDE added. Diets 2-3 each contained SC at levels of 2 and 4 g 100 g diet-t, respectively, while diets 4-5 each contained EDE at levels of （0.64, 1.28, 0.16） and （1.28, 2.56, 0.32） g 100 gdiefI of pepsin, papain and a-amylase, respectively. Diet 6 contained mixture of SC and EDE at levels of 1 g yeast and 0.32, 0.64, 0.08 g of pepsin, papain and a-amylase, respectively 100 gdiet1 and diet D7 contained 2 g yeast and 0.64, 1.28, 0.16 g of pepsin, papain and a-amylase, respectively 100 g dietl. Growth performance and feed utilization efficiency of Nile tilapia were significantly （P 〈 0.05） higher in all treatments receiving SC and/or EDE supplemented-diets than the control diet which suggests that the addition of SC and EDE enhanced the growth performance. Red blood cells counts, hematocrit and hemoglobin were significantly （P 〈 0.05） highest in all treatments receiving mixture of SC and EDE supplemented-diets （D6 ＋ D7）. The same trend was observed for total plasma protein and total plasma globulin levels. The results of present study suggested that Nile tilapia fingerlings fed diets containing the mixture of I g yeast, SC and 0.32, 0.64, 0.08 g of pepsin, papain and a-amylase, respectively 100 gdiet^-1, for 119 days had enhanced growth performance, diet utilization efficiency and hematological ind

关键词： Baker yeast digestive enzymes growth feed utilization hematological indices Nile tilapia.

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Red blood cell distribution width derivatives in alcohol-related liver cirrhosis and metabolic-associated fatty liver disease

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World Journal of Gastroenterology 2022年第38期28卷 5636-5647页

作者： Agata Michalak Małgorzata Guz Joanna Kozicka Marek Cybulski Witold Jeleniewicz Tomasz Lach Halina Cichoż-Lach Department of Gastroenterology Medical University of LublinLublin 20-954Poland Department of Biochemistry and Molecular Biology Medical University of LublinLublin 20-093Poland Department of Orthopedics and Traumatology Medical University of LublinLublin 20-954Poland

BACKGROUND Looking for undiscovered blood markers of liver fibrosis and steatosis still remains an issue worth *** are still plenty of unresolved issues related to the actual role of hematological indices as potential markers of liver *** To study red blood cell distribution width(RDW),RDW-to-platelet ratio(RPR)and RDW-to-lymphocyte ratio(RLR) in alcohol-related liver cirrhosis(ALC) and metabolic-associated fatty liver disease(MAFLD).METHODS The study group was composed of 302 people:142 patients with ALC and 92 with MAFLD;68 persons were included as ***,RPR and RLR were measured in each *** and direct parameters of liver fibrosis were also assessed [aspartate transaminase to alkaline transaminase ratio,aspartate transaminase to platelet ratio index(APRI),fibrosis-4(FIB-4),gamma-glutamyl transpeptidase to platelet ratio(GPR),procollagen I carboxyterminal propeptide,procollagen Ⅲ aminoterminal propeptide,transforming growth factor-α,plateletderived growth factor AB,laminin].MELD score in ALC patients and nonalcoholic fatty liver disease(NAFLD) fibrosis score together with BARD score were obtained in the MAFLD *** achieved results were compared to *** a correlation between assessed markers was *** value of each investigated parameter and its suggested cut-off in the research group RESULTS RDW,RPR and RLR values turned out to be significantly higher in ALC and MAFLD groups compared to controls(ALC:Pindices of liver fibrosis(FIB-4 and GPR;P<0.0001) in ALC patients;negative correlations were found between PDGF-AB and both:RDW and RPR(P<0.01 and P<0.0001,respectively).RPR correlated positively with NAFLD fibrosis score and APRI(P<0.0001) in the MAFLD group;a positive relationship was observed between RDW and FIB-4,too(P<0.05).AUC values and suggested cut-offs for RDW,RPR and RLR in ALC

关键词： hematological indices Alcohol-related liver cirrhosis Metabolic-associated liver disease Red blood cell distribution width Red blood cell distribution width-to-platelet ratio Red blood cell distribution width-to-lymphocyte ratio

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