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HYPOGLYCEMIC AND HYPOLIPIDEMIC EFFECTS OF SPIRULINA PLATENSIS, PHYCOCYANIN, PHYCOCYANOPEPTIDE AND PHYCOCYANOBILIN ON MALE DIABETIC RATS 全文
2018
El-Sayed El-Sayed | M. Hikal | B. Abo El- Khair | R. El-Ghobashy | A. El-Assar
This study aimed to evaluate hypoglycemic and hypolipidemic activities of Spirulina Platensis and its bioactive components (phycocyanin (PC), phycocyanopeptide (PCP) and phycocyanobilin (PCB)) on male diabetic Rats compared to controls and glibenclamide drug. For this reason, male Albino rats were equally divided into seven groups designated as normal control, diabetic control, diabetic + glibenclamide (Glyburide) drug (600 µg kg−1 body weight), diabetic + Spirulina biomass suspension (50 mg/ml/ kg−1 body weight), diabetic + phycocyanin (50 mg kg−1 body weight), diabetic + phycocyanopeptide (49 mg kg−1 body weight) and diabetic + phycocyanobilin (982 µg kg−1 body weight). The results show a statistically significant reduction (P < 0.05) level of fasting blood glucose, insulin resistance and lipids levels in diabetic animals administration with Spirulina Platensis, phycocyanin, phycocyanopeptide and phycocyanobilin compared with diabetic control. Also, there were an increase in HDL–cholesterol levels and β-cell function in these treatments. Histopathologically, diabetic rats treated with spirulina, PC, PCP induced a slight improve of pancreatic cells and an obvious recovery of pancreatic cells. The expression of insulin secretion from cells (β-cells) of diabetic rats was improved in the groups treated with Spirulina, phycocyanin, phycocyanopeptide. While, diabetic rats treated with phycocyanobilin recorded insulin levels lower than them. From this study it can be concluded that Spirulina Platensis, phycocyanin, phycocyanopeptide and phycocyanobilin possessed hypoglycemic, insulin sensitivity and hypolipidemic effects. Hypoglycemic and hypolipidemic effects of Spirulina Platensis may be attributed to phenolic compounds and phycocyanin. The antidiabetic effect of PC is most likely due to its ability to reduction of insulin resistance, enhance β-cell function and recovery of β-cells. The effect of PC may be attributed to selenium-binding phycocyanopeptide or/ and phycocyanobilin responsible for the antioxidant activity and chromium-binding phycocyanopeptide which activates insulin receptors.
显示更多 [+] 显示较少 [-]ASSESSMENT OF WATER QUALITY IN QARUN LAKE 全文
2018
M. Abu-Ghamja | Y. Zakarya | M. Elbordiny
To assess water quality of Qarun lake, forty-six of lake water samples were collected during the period from 2014 to 2015. Value of pH of Qarun lake ranged from 8.22 to 8.32. Value of alkalinity ranged from 9.8 to 33.4 ppm. ECw values ranged from 26.5 to 40.99 dS.m-1. Qarun lake contained the soluble cations in the following order: Na+> Ca2+> Mg2+> K+. The SAR of the studied water in Qarun lake ranged from 274 to 400with a mean value of 337. The highest value of SAR occurred in season 2015 while the lowest one was in 2014. The hardiness value of Qarun lake ranged from 602 to 1567ppm. The COD values were higher than that of ECP501,2015. they ranged from 1168 to 1293 ppm. Different macro and micronutrients were more than the permissible limits. Water Quality Index (WQI) was applied using ten parameters of water quality (pH, Chloride, Chemical oxygen demand (COD), Iron (Fe), Phosphate (PO4-3), Chromium (Cr), Boron (B), Hardiness, Ammonium and Nitrate ). The results indicated that water quality of Qarun lake decayed from the year 2014 to 2015 and could be categorized into Unsuitable class. The effect of anthropogenic activities was obvious on some parameters such as nitrate and ammonium. Monitoring the water quality of Qaroun lake is necessary for proper management.
显示更多 [+] 显示较少 [-]PRODUCTION OF L-TRYPTOPHAN BY MUTANTS OF CORYNEBACTERIUM GLUTAMICUM 全文
2018
Hamies Mohamed | Ghada El Nady | A. Ali | A. Abdel-Razik | S. Ibrahim
L-Tryptophan, is one of the amino acids, also is one of the 9 essential amino acids of human which cannot be synthesized internally by him, microbial production is the main method for obtaining tryptophan for commercial uses. Typical microorganisms used for tryptophan production are E. coli and C. glutamicum. In this study, random mutations is performed on two strains of C. glutamicum to increase tryptophan production, the produced tryptophan measured by bioassay using tryptophan auxotroph E. coli (JW1254-2) strain, the mutations are performed using UV radiation. To detect and compare the difference between the parent strains and the muted strains genetically two molecular markers were used start codon targeted polymorphism (SCoT) and Inter-simple sequence repeats (ISSR). Tryptophan remarkably increased after C. glutamicum mutation to reach 278.4 µg/ml (1257.4% increment) from one mutated strain. Molecular genetics methods showed an ability to distinguish between the two original strains and their mutants and it showed the importance of the mutation by UV radiation for increasing the productivity of the bacteria to tryptophan.
显示更多 [+] 显示较少 [-]COMPUTATIONAL MODEL TO IMPROVE DAIRY ANIMAL FEEDING UNDER MIXED FARMING SYSTEM (CROPS/LIVESTOCK) AS STUDY CASE 全文
2018
H. Ismail | A. Al-Sadek | A. Ashmawy | M. Khalil | Manal Elsayed
Computational model was designed for feeding systems of small dairy farms in Egypt under Mixed Farming System (MFS) (Crops/livestock). The present case study was selected from El-Beheira governorate, where the three common dairy animals (Local cows, Crossbred cows and buffaloes) are available. The main objectives of this study were 1- To find out the optimum combination of inputs from farm green forage and cash crops to minimize animal feeding costs. 2- Asses the possibilities of increasing the farm income by least cost rations formulation using available feed resources for dairy cattle. Technical coefficients of the models were obtained from previous studies under Egyptian condition. The model proposed three scenarios: Scenario I (S I) calculated the actual feeding situation from the case study without any changes as base run, scenario II (S II) proposed to cover animal feeding requirements of the same herd in scenario (S I) from the same available feed resources according to NRC (2001) and scenario III (S III) operating on the available feeding package quantities or reallocated farm feed resources for the same herd. The model used the common feed in summer and winter seasons (300 days) while, two months were considered as transitional period between two seasons, where irregular animal feeding regime is adopted. The results showed that area cultivated with green forages can be reduced by 17% and 25% of total planted area in SII for winter and summer, respectively, compared to base run (SI). Where as in S III, the green forage cultivated areas reduced by 30% and 25% for winter and summer, respectively in comparison with SI, feeding costs in SII were reduced by 51.11% and 38.97% in winter and summer, respectively. Using available feeding packages and reallocated farm resources in SIII reduced feeding costs by 47.78% and 27.67% for winter and summer, respectively. It can be concluded that using available feeding packages or reallocated animal feeding resources either in SII and SIII achieved a considerable reduction on animal feeding costs of small-scale mixed farms compared to base run scenario (SI).
显示更多 [+] 显示较少 [-]EFFECT OF SPROUTING USING SALINE WATER ON CHEMICAL COMPOSITION AND PROTEIN QUALITY AND FRACTIONATIONS OF EGYPTIAN CLOVER SPROUTS 全文
2018
A. El-Gebaly | Y. El-Gabry | Sanaa Mahfouz | M. Abdallah
The effect of salt stress on growth proximate analysis, amino acid profile, protein quality and fractionations in 3 days etiolated clover sprout samples was investigated. Sterilized and non-sterilized clover seeds were sprouting using tap water 1000 ppm and 2000 ppm NaCl solution. The results showed reduction effect of clover sprout characters with higher NaCl concentration. Clover seed sprouting increased the crude protein content using tap water or saline water for sprouting as compared with dry seeds. However using non-sterilized clover seeds for sprouting recorded the higher values of protein (44.73%), lipids (6.21%) and energy (318.51 kcal/g) in etiolated sprouts, while using sterilized seeds recorded higher carbohydrate (21.28%), fiber (14.57%) and ash (4.46%). For amino acids, aspartic acid followed by glutamic acid were the most abundant, while Cysteine and methionine were the least in clover etiolated sprouts. Using saline water for clover seed sprouting caused increases in all amino acid compared with tap water except Methionine, aspartic acid and cysteine. For protein efficiency ratio (PER), essential amino acid index (EAAI%) and biological value (BV), from using saline water for sprouting had the higher values than sprouts from using tap water, but the values are less than dry seeds. On the other hand nutritional index (NI) recorded the higher values in salt stress compared with both using tap water and dry clover seeds. For protein fraction in etiolated clover sprouts albumin was the major protein fraction extracted from NaCl 2000ppm sprout fallowed by prolamin from tap water sprouts, glutelin from NaCl 1000 ppm sprout and globulin from tap water sprout. The clover sprout protein isolated and its fractions could have excellent applications for future product development by virtue of their nutritional and functional properties.
显示更多 [+] 显示较少 [-]RESPONSE OF YELLOW MAIZE PRODUCTIVITY AND QUALITY TO INTEGRATION BETWEEN MINERAL AND ORGANIC NITROGEN FERTILIZERS UNDER NEWLY RECLAIMED SOILS CONDITIONS 全文
2018
Y. ElAbdkrem | R. Abdrabou | M. El-temsah | M. Abd El-hady
Two field experiments were carried out at a private farm (newly reclaimed soil) at Somusta city, Bani-Suif governorate, Egypt, during 2014 and 2015 growing seasons. These experiments aimed to evaluate the application of different nitrogen sources and their combinations for increasing the productivity and quality of yellow maize (zea mays). Results showed that: Maize plants fertilized with120 kg MN/fad. recorded the greatest leaves number/plant (12.67) and number of green leaves /plant (12.67) after 45 days from sowing, however, the applied application of 60 kg MN/fad + 60 kg ONP /fad gave the maximum number of leaves /plant (15.17 and 17.83) and number of green leaves /plant (15.17 and 16.33) at stages of vegetative growth after 60 and 75 days from sowing, respectively. application of 60 kg MN/fad + 60 kg ONP /fad gave the highest values of leaf area index (LAI) at all stages of vegetative growth 3.16, 3.98 and 6.39 from 45, 60 and 75 days from sowing, respectively. At harvest maize plants fertilized with 60 kg MN/ fad + 60 kg ONP /fad recorded the highest value of grains number/row (32.83) followed by 60 kg MN/fad + 60 kg ONC/fad. the highest values of ears number/plant were recorded with the treatments 60 kg MN/ fad + 60 kg ONC /fad, 60 kg MN/fad + 60 kg ONP/fad and 60 kg MN/fad + 60 kg ONF/ fad with the same value (2.00). Data also revealed that the highest value of grain weight/plant (274.49) was recorded at 60 kg MN/fad + 60 kg ONP/fad treatment. Application of 60 kg MN/fad + 60 kg ONP/fad produced significant maximum grain yield (3.05 ton/fad.), biological yield (6.37 ton/fad) and grain crude protein yield (296.83 kg/fad). Maize plants treated with 60 kg MN/fad + 60 kg ONP/fad gave the highest values of grain and straw nitrogen percentage by 1.17 and 0.42% respectively. In addition the highest values of grain and straw phosphor percentage (0.49 and 0.20 %) and potassium percentage (4.30 and 1.90%) respectively were recorded with 120 kg ONP/fad.
显示更多 [+] 显示较少 [-]EFFECT OF SALINE WATER IRRIGATION AND FOLIAR SPRAYING OF SALICYLIC ACID ON GROWTH, FLOWERING AND CHEMICAL COMPOSITION OF POT MARIGOLD (Calendula officinalis L.) PLANT 全文
2018
Zeinab Abou El-Ftouh | Asmaa Mohamed | A. Ibrahim
This study was carried out to investigate the effect of saline water irrigation at 2000, 4000, 6000, 8000 and 10000 ppm by using a mixture of two salts (sodium chloride: calcium chloride, 2:1, w/w) in addition to tap water as control and foliar sprayings of Salicylic acid (SA) at 100, 200 and 300 ppm in addition to tap water as control on growth, flowering and chemical composition of pot marigold plants in the two successive seasons of 2014/2015 and 2015/2016 in the Faculty of Agriculture, Ain Shams University, Qalyubia Governorate, Egypt. Results revealed that all tested foliar applications of SA increased all vegetative growth characteristics (plant height, number of leaves /plant, leaf area, number of branches/plant, diameter of stem, fresh and dry weights of vegetative growth and roots, and roots volume), and flowering attributes (number of inflorescences/plant, diameter of inflorescence, fresh and dry weights of inflorescences). While, saline water irrigation decreased growth, flowering parameters, chlorophyll, carotene contents in flowers and some minerals contents of the vegetative growth, i.e. nitrogen, phosphorus and potassium percentages. However, saline water irrigation increased proline and some mineral contents, i.e. calcium, sodium and chloride percentages of the vegetative growth. In most cases, under the same saline water irrigation conditions spraying SA at 100 and 200 ppm concentrations alleviated the salinity effect on the plants, enhanced the plant growth and increased the flowering parameters. The most effective treatments which enhance growth, flowering parameters, chlorophyll content, carotene contents in flowers, proline and mineral contents were found to be 100 and 200 ppm SA spraying under nonsaline conditions.
显示更多 [+] 显示较少 [-]THE NUTRITIONAL PRACTICE, PERSONAL, HEALTHY AND HABITUAL RISK FACTORS RELATED TO CARDIOVASCULAR DISEASES OF FEMALE EMPLOYEES AND STUDENTS AT KING FAISAL UNIVERSITY, AL-AHASSA PROVINCE, KINGDOM OF SAUDI ARABIA 全文
2018
Najat Alabbad
Balanced nutrition plays an important role in preventing chronic diseases such as cardiovascular disease. The quality of fats and carbohydrates also have a protective effect compared to the consumption amount. The consumption of diets high in polyunsaturated fats, omega-3 fatty acids, vegetables, fruits, whole grains, nuts, and low in refined grains, processed red meat and sugary drinks, reduce cardiovascular disease. The aim of this research is to monitor the personal, nutritional, healthy and habitual risk factors related to cardiovascular diseases of female employees and students at King Faisal University in Al-Ahssa Province, Eastern Saudi Arabia. The descriptive analytical approach was used. Data were collected by distributing two forms included general questions about female employees and students (eg, age, socioeconomic status and place of residence), The two questionnaires were accompanied by two lists, the first included a range of risk factors for cardiovascular disease, and the other included 16 nutritional practice related to cardiovascular disease. Also some anthropometric measurements of the sample were recorded. The sample included 75 female employees and 425 female students volunteering in the study, from three colleges in the university, and data were statistical analyzed. The results showed that the level of nutritional practices associated with cardiovascular disease is "average" for most of the sample of the study, Which is better among university female employees compared to female students (P = 0.000). The mean number of risk factors for cardiovascular disease was 4.03 and 2.77, respectively. The risk factors for most of university's employees included age factor (82.7%), psychological stress (80%), overweight and obesity (69.3%) and the classification of waist circumference was a risk factor and high risk (66.7%). The risk factors for students were psychological stress and the presence of one smoker or more in the family. Based on the results, the study recommends that the university students and employees should carry on following good nutritional, healthy and habitual practices that reduce the risk factors for cardiovascular disease, as well as modify the bad nutritional practices with good ones. The study also recommends the university administration to provide nutrition education programs. This will increase the awareness of students and employees of the university about the importance of balance nutrition and encourage them to adopt good nutritional Habits and health lifestyle.
显示更多 [+] 显示较少 [-]THE EFFECT OF HEAT STRESS ON PRODUCTIVE TRAITS FOR THREE EGYPTIAN BREEDS 全文
2018
Habiba Rezk | H. Ayeoub | A. Galal | Lamiaa Radwan
The objective of the present study the effects of heat stress on the productive traits are Play an important role in the poultry industry. The experiment was carried out in the farm of the Faculty of Agriculture-Ain Shams University, reared 600 chick of three breeds (Sinai - Fayoumi - Dandrawi) were divided into equal two groups (the treatment was exposed to heat stress on different periods of 3 days - 8 weeks - 16 weeks on temperature of 400c for 4 hours / 3 days. While, the control under environmental conditions. Then, take the body weight in 8, 10,12,14,16 weeks of ages, and body measurements (shank length, tibia length, body depth, keel length, comb and wattle) in three local breeds. The most important results obtained that It could be observed that the effect was high significantly (p<0.0001) heavier in Fayoumi compared to Dandarawi and Sinai in weight body and The results in the body measurements of the parent stock showed The effect on the Fayoumi breed was higher followed by Dandarawi and Sinai, The effect of the rectal temperature and rate respiratory are significant on the breed and the treatment. Concluded that study the effect on productive traits for three local breeds.
显示更多 [+] 显示较少 [-]RESPONSE OF COTTON YIELD AND LINT PROPERTIES TO MINERAL N.P.K NANO-FERTILIZATION 全文
2018
A. Zakzok | R. Abdrabou | Abeer Arafa | G. Abd-Elsamad
Two field experiments were conducted at Sakha Research Station, Cotton Research Institute, Agricultural Research Center at Giza, Egypt during the two summer growing seasons ,2014 and 2015 The aim of the work was to study the effect of the combination among nano-fertilization ,mineral fertilization and organic fertilization on growth, yield and fiber technological properties of Egyptian cotton Giza 94 cultivar. The most important results can be summarized as follows: Response of cotton yield and lint properties to mineral N.P.K nano-fertilization the complex treatment contains half dose of both the nano-fertilizer and the bio-organic fertilizer gave the highest reading for plant height (cm), number of fruiting branches per plant, number of open bolls per plant, boll weight (gram), lint percentage, Seed index, Seed cotton yield (Kentar/fed.) , Lint cotton yield (Kentar/fed.), fiber maturity ratio (MR), upper half mean (UHM)mm, fiber uniformity index (UI), fiber strength (g/tex), and micronaire value flowed by the treatment 100% nano then the recommended dose of mineral fertilizer NPK. On the other hand, the lowest values for all the above traits, were recorded from the half does of NPK mineral fertilizer in 2014 and 2015 seasons, .While, There were no significant differences between the means of the fiber elongation % due to the treatments applied during the study in 2014 season .It's worthy to mention that, the percentage of fiber elongation had no constant trend due to fertilizer transactions applied on the adopted genotype during` 2015 season, meaning that nano-fertilizer is boosting the fiber elongation percent.
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