Identifying phenols in ornamental trees may provide sources of natural compounds that have applications in the agricultural and pharmaceutical industries. In this study, we profiled phenolic acids in the bark of Quercus sp.  using HPLC-DAD. Q. robur showed high ellagic acid (in Q. robur).  Q. macrocarpa had high caffeic acid. All species showed antibacterial and antifungal activities.  P. aeruginosa was the most sensitive species for bark extracts.  The antifungal activities were high against A. flavus. The study revealed new natural sources of phenolic acids that have antimicrobial activities with agricultural and pharmaceutical applications.

Guava die-back disease is a destructive disease. It causes serious yield losses and reduced guava fruits. Inspection of guava plant for die-back revealed that Beheira governorate had the highest frequencies of all isolated fungi from natural infected guava trees, followed by Alexandria, while Kafr El-Sheikh obtained the lowest frequency. Botryodiplodia theobromae gave the highest frequency of isolated fungi from natural infected guava trees during seasons 2015 and 2016, followed by Alternaria alternata, Alternaria sp., whereas Colletotrichum gloeosperiodes, Phomopsis sp., and Nigrospora sp. obtained minor frequency. The highest frequency of Botryodiplodia theobromae was observed at Beheira, followed by Alexandria governorate. Meanwhile, the lowest frequency was found at Kafr El-Sheikh. Pathogenicity test indicated that Botryodiplodia theobromae was the most pathogenic fungus. RAPD analysis of DNA by using three random primers exhibited five groups of DNA bands with first primer, six groups with second primer and five groups with the third primer and the overall similarities between isolates were arranged from 69 to 100% with P1, from 62 to 100% with P2 and from 33 to 100% with P3. The present study aimed to finding correlation between these isolates groups which resulted of RAPD, its pathogenesis and its geographical isolated locations. Ten isolates of B. theobromae represented ten locations of five governorates in Egypt were tested to evaluate the ability of pathogenesis in guava transplants cultivar Banaty at pots under experiments greenhouse conditions for artificial inoculation. The obtained results were exhibited that all tested isolates were clearly pathogenic to guava transplants and produced typical symptoms of guava die-back disease. Such isolates were differences of differed in their pathogenicity. The  ten isolates were coded according to their locations by three random primers (B.W.1, A.B.2, D.S.3, Q.K.4, A.A.5, B.N.6, K.Q.7, Q.S.8, D.B.9 and K.D.10). Isolate code No. Q.K.4 was the most virulent, followed by D.S.3 and Q.S.8, respectively which isolated of Qalyoubia and Damietta governorates. Meanwhile isolates K.D.10, A.A.5, K.Q.7 were moderately pathogenic, they were isolated from Kafr El-Sheikh and Alexandria, while A.B.2 and B.N.6 were the lowest pathogenic isolates isolated from Alexandria and Beheira governorates.

Selenium is a trace element essential in animal nutrition and exerts multiple actions related to enhance animal production, fertility, immune response and antioxidant defense system of chickens. The aim of the present study is investigating the benefit effects of selenium nanoparticles (SEN) in-ovo injection on productive performance, express stimulate antioxidant defense system and immune response of hatched chicks.  A total of 210 broiler breeder eggs ( Habbard Star-Bro) were divided into three in-ovo injection treatment groups,( 0, 5 and 10 ppm SEN) and incubated. Hatchability traits , productive performance,  biochemical profile, antioxidant status and immune response of hatched chicks were estimated. Results indicated significant increase in HDLcholesterol, T3, GSR, GSH, IGA, IGM and IGG as affected by in-ovo inoculated SEN levels. However feed conversion ratio, triglycerides and MDA significantly decreased by in-ovo treatments. No significant alternations were recorded in hatched chicks weight, feed intake, body weight, body weight gain, carcass characteristics, and serum levels of protein fractions, cholesterol, LDL- cholesterol, ALT, AST, ALP, uric acid, creatinine and glucose in in-ovo treated groups compared with the control one. It is summarized that, in-ovo inoculation of different levels of SEN can improve feed conversion ratio, lipid profile, antioxidants status and immunity of  broiler hatched chicks.

This study was carried out to investigate the effect of different group’s size on productive performance of growing rabbits. A total number of 108 APRI weaning rabbits, their average initial body weight were 560±10g. Animals were assigned to two groups: The 1st group housed by 4 rabbits in cage 60 cm2, while the 2nd group housed by 8 rabbits in cage 120 cm2. During the experimental period live body weight(g), daily feed intake(g) and mortality rate (%)  were recorded and daily body weight gain(g) and feed conversion ratio(FCR) were calculated at 5, 8, 10 and 12 weeks of age. After the end of the experiment (12 wk) 36 rabbits were randomly taken and slaughtered to calculate the measure carcass traits. These include total giblet (g), cervix part (%), front quarters (%), intermediate part (%), hind quarter (%) and the dressing weight. Also the economical efficiency (EE%) was calculated. Results indicated that: the average live body weight (LBW), daily weight gain (DWG) and daily feed intake (DFI) were not significantly influenced by different group size. The best DWG values were recorded for the group 2 (8 rabbits/ cage), by around 2.5% during the whole fatting period (5-12 wks). Daily feed intake was lower in group 2 than group 1 by around 6.20%, 2.00%, 0.31% and 2.83% at 5, 8, 10 and 12 weeks of age, respectively. Data revealed significant improvements in FCR for rabbits in group2 (P<0.05) than group1 for the period 5-8 and during the whole growing period 512 weeks. The mortality rate was lower in group 2  than in group 1. The best dressing weight value was recorded for the group 2 by around 9.2%.The economical efficiency (EE %) was improved in group 2. It is concluded that, increasing number of rabbits to 8 rabbits in cage could decrease the mortality %, increase the dressing weight that also lead to increase the economical efficiency.

Egypt has an appropriate environment for the cultivation of many medicinal and aromatic plants of great economic potential all over the world. Chamomile is one of the most important crops, especially in Fayoum governorate, where the average of cultivated area under the traditional farming system about 9.8 thousand feddan in the year 2015 represents about 77% of total traditional chamomile area in the whole country, where organic chamomile production area was approximately 6.3 thousand feddan which represent about 84% of total organic Chamomile production area in whole Egypt. This research aimed to evaluate the economic efficiency for Chamomile production under organic farming system compared with traditional system in Fayoum governorate over the growing season 2015 -2016 in the short-run and long-run based on preliminary data of a random sample of traditional and organic chamomile farms. A simple random sample was taken from three districts in Fayoum  governorate (Ebshway, Etsa and Youssef El Siddiq), with 75, 60 individuals for both traditional and organic farms respectively, each sample was divided into two categories; the first category (0.5 feddan – 1 feddan), the second category (1.5 feddan - 2 feddan). Analytical procedures were utilized in processing and analyzing the data. Multiple regressions were used to reach the basic findings of this research. Production and Cost function was specified and estimated, in order to derive some indicators of economic efficiency, production efficiency and economic of scale. The results showed that the total production elasticity for both the selected sample farms in the short and long run, indicating that all farms are produced in the first non-economic phase of the Law of diminishing returns.  The results showed that the net return of organic farms was higher than traditional farms by 63.6% and 52.1% for the first and second category farms, respectively.

Agricultural mechanization is considered one of the most important agricultural technological methods for making fundamental changes in the agricultural sector. Therefore, Egypt has worked on two main axes: horizontal and vertical expansion, using modern agricultural technology, which is one of the important tools of development in the agricultural sector because it has a positive impact on vertical expansion. The study aimed to review the current state of agricultural mechanization at Egypt level and the governorate of Sharkia governorate to find out the availability of modern agricultural machinery and equipment and study the relations of substitution and complementarity between these machines and each other and the relationship of these machines to the crop area and productivity of wheat in Egypt. The most important results were: The number is increasing of tractors, ploughs, shooters, seeders irrigation machines, hoe machines, pesticides sprayers, harvesters, threshing machines in Egypt and Sharkia governorate, The increase in the number of prisons in Egypt and the decrease in the Sharkia of seed dill, and the decrease in the number of transplanters in Egypt and Sharkia governorate. The relationships between agricultural machinery (tractors, ploughs, irrigation machines, hoe machines, pesticides sprayers, harvesters, and, threshing machines) are both linear and statistically significant. This means that there is a complementarity between these machines and each other, As well as relations between the agricultural machinery and the seeders, seed drill and transplanters where the relationship either be positive but they are significantly less  than the equivalent of other machines are either positive or negative, but not statistically significant and therefore it has nothing to do with the other.  There is no statistically significant relationship between the productivity of wheat in Egypt and Sharkia governorate and the machinery (tractors, ploughs, seed drill, hoe machines, harvesters, threshing machines). Decreased total average area per tractor for wheat crop in Egypt and Sharkia governorate. There was no statistically significant relationship between the average crop area for each tractor and the production of wheat crop in Egypt. In Sharkia governorate, the relationship is inverse and statistically significant. There is a statistically significant correlation between the average area per tractor for wheat yield in Egypt and the average area per tractor for wheat crop in Sharkia governorate. There was no statistically significant correlation between the number of tractors and the productivity and the average yield area per tractor for wheat yield for both Egypt and Sharkia governorate. The agricultural mechanization is still in its early stages, economic relations either do not exist or take different signals. The statistical significance of the development of the number of machines at Egypt level or the Sharkia governorate for the first strategic crop in Egypt is not proven. Hence, agricultural mechanization in its broad sense is the use of modern technology in increasing production Which has not yet been achieved and hopes and efforts are required to pursue better policies to achieve the desired goals

Egyptian radish sterilized seeds were sprouted for 3 days using tap and saline water NaCl 2000 ppm to study sprout characters, chemical composition, protein fraction and safety aspects such as microbiological examinations and biogenic amines were investigated at 3 days old. The results indicated that sterilized seeds increased sprout growth compared with non-sterilized. Seeds sprouting increased in protein content, moister, ash and fibers while carbohydrate, lipid content and energy decrease in etiolated sprouts. Using saline water and seeds sterilization for sprouting increased albumin, globulin and glutenin fractionation but decreased prolamin compared with sprouts produced with tap water and without seed sterilization.  Using sterilization by 2% calcium hypochlorite of seeds before sprouting led to decreasing in total bacterial count compared with non-sterile seeds sprouts, the same was in total coliform, total yeast and total fungi counts. The sprouts product which washed with saline water was contain total bacterial count less than which washed by tap water. All sprouts under investigation were free from feacal coliform and all examined pathogenic microorganism under investigation like Staph. aureus, B. cereus and Salmonella spp.  Use sterilized seeds for sprouting caused big decrement on biogenic amines content of radish sprout. Radish sprout contain biogenic amines but it is lower than previous ranges, sprouts can be considered a safe food and germination of seeds either use tap or saline water.

Productivity efficiency is defined as a measure of the efficiency or efficiency of a particular production component of the production component when used with other elements. This section will address the estimation of the production functions and production efficiency of onion crop in Beni Suef Governorate. Problem and purpose of research To identify the most important problems and obstacles faced by onion production farmers in Beni Suef Governorate Of its strategic importance in Beni Suef Governorate. In light of this, the study aimed to identify the most important problems and problems faced by onion farmers in Beni Suef Governorate, the development of Egyptian onion production. Studying the functions of producing onion crop in sandy  soils to find out the most important elements of production that affect its production. Study the cost functions of the onion crop in the land to the sandy to find out the most important elements of production that affect the production. The total production elasticity was 1.12, with production elasticity in the first 0.77 category, while the second category production flexibility was 1.2. Where the productive flexibility in the third category was 1.01. The cost categories revealed that the total cost elasticity was 0.23, with cost elasticity in the first category of 0.09, indicating the elasticity of the costs of the second category 2.1, where the elasticity of the costs of the third category was 0.30.

The effect of prior heat shock on the thermotolerance of Staphylococcus aureus in broth culture and induction of heat shock proteins was investigated. S . aureus cell wall was, also, examined using Scanning Electron Microscope (SEM). Specific bacteria were grown at 37°C the optimum temperature (control), sublethally heated at 47, 52, 57 and 60°C for various times, and heat treated at 68°C were done. The estimated average of the D68-values for the control was 4.83 min while for heat shocked treatments ranged from 5.43 to 10.23 min. The current results, also, indicated that 8 - 16 new bands were induced by applying heat shock treatments with molecular weights ranged from 9 to 135 KDa. The induced heat shock proteins further confirmed the increased the thermotolerance. Moreover, selected heat shock treatments caused severe destruction in cell wall (i.e., rupture, irregular and leakage of cell contents), while heat shocked cells after incubating at 37°C for overnight in enriched medium became similar to that of the one’s normal. The enhanced heat resistance of S. aureus should be thought-about in cause of planning effective thermal processes to confirm the microbiological food safety.

Sweet whey was used as medium for microbial alginate production by Azotobacter chrococcum NCBI MH249629. To optimize alginate production and achieve high yield of alginate, sweet whey medium was prepared using different lactose concentrations (20, 25, 30, 35, 40, 45, 50 g/L), added organic and inorganic nitrogen sources (yeast extract, Malt extract, ammonium sulphate and ammonium nitrate), kept at different temperatures (25, 30, 32, 35 & 37ºC), different pH values (4, 5, 6, 7, 8, 9),  different agitation speed (100, 120, 150, 170 & 200 rpm), different inoculum size (1,2,3,4,5,6,7,8,9,10%) and cultivated for different fermentation time (0, 12, 24, 36, 48, 60, 72, 84, 96, 108 & 120h). After fermentation time, produced microbial alginate was measured. The results showed that sweet whey could be used as a fermentation medium by Azotobacter chrococcum to produce microbial alginate. The highest yield of alginate (12.56%) as well as productivity of alginate (0.08 g/L/h) was obtained by fermentation of Azotobacter chrococcum in sweet whey medium optimized to 45 g/L lactose concentration as a carbon source and by providing the following conditions which yeast extract 1.5 g/L and ammonium nitrate 0.1 g/L as a nitrogen source and growth promoter, Na2HPO4 1 g/L as mineral salts, Initial pH at 7, size of standard inoculums was 9 % of fermentation medium and the incubation period was 72 hrs.