The problem of research is the low and low wages in the agricultural sector, which makes it an employment sector, indicating that there is imbalance in the structure of the labor market in the agricultural sector, and thus the current deviation of agricultural employment from the optimum level that achieves economic efficiency, hence the main objective of The research is to assess the equilibrium situation of the labor market in the Egyptian agricultural sector, and determine the most important factors affecting it, through the study of both sides of the demand and supply of agricultural labor through Simultaneous Equations Model. The most important results obtained were:  1 - For the function of demand for agricultural labor: It was found from the estimated equation that the increase in the wages of the agricultural worker by one pound leads to a significant statistical decrease at a significant level of 5% in the demand for agricultural labor by about 135 thousand workers, as shown from the estimated equation Effect of production value Agricultural demand for agricultural employment amounted to about 29.7 thousand workers million workers. The impact of the supply of agricultural labor in the demand for agricultural labor, which reached about 645 thousand workers, was also shown.  2- For the agricultural labor supply function, the estimated equation shows that increasing demand for agricultural labor leads to an increase in the supply of agricultural labor by 1 million and 9,000 workers. It is also shown from the estimated equation that increasing the wage of the agricultural worker by one pound  leads to an increase in the supply of agricultural labor by about 39 thousand workers.  3- As for the equilibrium situation of the labor market in the Egyptian agricultural sector, it was found that the wage of the agricultural worker amounted to about 43.338 thousand pounds / year, ie about 118.73 pounds / day, which is different from the actual situation of the wage of the agricultural worker, which averaged 26.164 thousand pounds / year Ie about 71.68 pounds / day as an average for the last three years. This means that the wage of the worker in the agricultural sector is less than the equivalent of 47.05 pounds per day. In addition, the total number of agricultural workers in the agricultural sector reached about 6.34 million workers, which differs from the actual situation of the supply of agricultural labor which reached 7.780 million workers as an average for the last three years. This means increasing the supply of agricultural labor to the balanced size of agricultural labor by (1.44 million workers), which explains the low wages in the agricultural sector, in order to load the agriculture sector with a larger number of workers than is supposed to be and hence the low wage in the agricultural sector and thus become an employment sector that will negatively affect the attractiveness of investments in the agricultural sector Which represents a sector Wide in the Egyptian economy is not negligible.

he efficiency and biochemical effects of certain insecticides belonging to different groups namely: flubendiamide (diamide), pyridalyl (phenoxy-pyridaloxy), clothianidin (neonicotinoide), fipronil (phenylpyrazole) and spirotetramat (tetramic acid) and pirimiphos-methyl (Ops) were tested against 2nd larval instar of Spodoptera littoralis laboratory strain using dipping technique. The efficacy of the tested insecticides are arranged as follows to LC50 values. The results showed that flubendiamide was the superior toxicant insecticides ( LC50 1.03 ppm) followed by pyridalyl (2.13 ppm) then fipronil (7.42 ppm), clothianidin (26.87ppm), pirimiphos-methyl (76.31 ppm) and spirotetramat (431.91 ppm). Biochemical effects of the tested insecticides on acetylcholine esterase (AChE), glutathione-s-transferases (GST), adenosinetriphosphatase (ATPase), phenoloxidase, total calcium, and total protein were determined in the treated larvae. Data showed highest significant increase at AChE activity in treatment of fipronil by change% (70.59), while treatment with pirimiphosmethyl recorded highest significant decrease by change% (-56.41). Whereas, all treatments recorded increase in GST activity except pirimiphosmethyl recorded non significant decrease. All insecticides treatments were showed a decrease in phenoloxidase activity the highest decrease recorded by pirimiphos-methyl treatment by change % (- 53.06). Regarding change percentage of ATPase, activity data recorded significant increase with pirimiphos-methyl treatment by (72.91%).  However, total protein in all treatments showed a significant decrease. On the other hand, treatment with pirimiphos-methyl recorded a significant decrease in total calcium and the corresponding change % was   (- 6.0%). Previous data confirmed the mode of action of the novel tested insecticides.

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.

This study was conducted to evaluate the effect of ensiling and /or exogenous fibrolytic enzyme supplementation date press cake using in vitro batch culture technique . Untreated date press cake (DPC) and ensiled DPC with exogenous fibrolytic enzymes (ZAD1 and ZAD2) and with or without adding urea compared to corn grains were in vitro evaluated using batch culture technique. DM, NDF and ADF degradation and total gas production as well as fermentation parameters of the incubated samples were determined after 24 h of fermentation. Total VFAs, proportions are not affected (P > 0.05) by any of the treatments. However, value of ammonia concentration was higher (P < 0.05) with ZAD2+U group and urea group than date press cake (DPC). The pH value was highest (P>0.05) with the ensiling treatments. There were no significant differences in the values of DMD and OMD between the different treatments. But, the values of NDFD and ADFD were increased (P<0.05) in the corn group. Total gas production had no difference (P>0.05) between the corn grain and the DPC without any treatments. While, values of metabolizable protein (MP) and efficiency of microbial biomass production (EMP) were increased (p<0.05) with DPC compared to corn grains . There was no significant difference in the rumen activity when using date press cake (DPC) or corn grains. Moreover, the ensiling process did not cause a clear improvement in rumen fermentation.

Solar water pumping system may be a competitive application for remote and luxurious areas where power costs a lot. One may argue that solar photovoltaic water pumping systems not only comprises an environmentally friendly solution, but also contributes substantially to the satisfaction of remote communities’ water consumption needs. Therefore, the study aimed to manage pump for sprinkler irrigation system operated by solar power in small area of turf. The required hydraulic experiment and measurements were conducted using Direct-coupled photovoltaic pumping system to operating sprinkler irrigation network at the experimental farm of soil and water Research Department, Nuclear Research Center, located at Inshas, Sharkia Governorate, Atomic Energy Authority, Egypt. The essential idea to operate the sprinkler irrigation system and fulfill the water needs of turf area was to use a locally assembled pump-set to match the photovoltaic generator unsteady output. Results indicated that, solar radiation increased during summer (April and July), so the electric power, pump discharge, pressure head, Hydraulic horsepower (hp) and Photovoltaic conversion efficiency are affected as solar radiation changed.    Four mathematical equations has been derived to illustrate the relationship between solar radiation and electric power, pump discharge  pressure head , water hp and Photovoltaic conversion efficiency (PVCE) during the day hours.

Chickpea (Cicer arietinum L.) belongs to legumes reducing atmospheric nitrogen symbiotically through Rhizobia Spp. into proteins in a process leaves no carbon footprint. However, chickpea is highly susceptible to viral diseases, which limits productivity. Therefore, the current study is conducted, in two seasons (2015/2016, 2016/2017) to evaluate the symbiotic efficiency of Mesorhizobia in reducing the damage occurs in chickpea if was infected by chickpea yellow mosaic virus (CpYMV). For this aim, One viral (CpYMV) and two Mesorhizobial isolates (MS3All, MS8All) are isolated from open-fields of chickpea plants. Three chickpea experimental lines (F.07-268, F.07-258 and F.0744) and one Egyptian cultivar (Giza195) are dually infected by CpYMV and either of MS3All and MS8All. Then, infected plants are grown in pots in open-air at the cultivation area of the Faculty of Agriculture, Ain-Shams University (Shoubra). The results indicated that the viral infection led to a reduction in the dry weight of root (DWR) and shoot (DWS), the ratio of root-to-shoot (RSR) dry weight, the nodule counts (NN), the photosynthetic pigments and the nitrogen content (N2). Interestingly, the dry weight of nodules (DWN) is significantly increased in dually infected plants. Uniinoculated Chickpea using either of the two isolates of Mesorhizobia showed significant increase in all phenotypic parameters when virus infection is included; except for DWN that decreased com pared to control viral-infected plants but no mesorhizobia. The current study suggests that bacterial inoculation using Mesorhizobia is significantly reduced damaging effects of the virus on chickpea. Moreover, the MS3All isolate is suggested the more effective than MS8All and the experimental chickpea lines F.07-258 and F.07-44 had the highest significant levels of N2 for shoot than F.07-268 and Giza195 lines.

This paper focuses on treated date seed with two cellulolytic bacteria (Acetobacter xylinum and Thermonospora fusca) isolated from sheep and evaluated these species by Invitro gas production and metabolism trail.  We evaluated the influence of many rations contain several percentage from date seed untreated and treated on In vitro traild for DM,OM, NDF, ADF, cellulose and hemicellulose disappeara (samples incubated for 24 hrs). the best ration used in metabolism trail . The experimental work was conducted in 2017, at the Department of Animal Production, faculty of agriculture, Ain Shams University, Cairo, Egypt and the experiment of the farm animals occurred in the Animal Production research institute.  Our results in this revealed that the ration content 25% untreated and treated with bacteria  had significant values on NDF, ADF and hemicellulose degradability after 24 hours, especially treatment 2 (Thermonospora fusca) of date seed. In  the experimental ration with ascending level of untreated and treated date seed  had not significant effect on pH value while more effect on total gas production (GP),ammonia, TVFA’s, MP, EMP and  metabolizable energy ME (Mcal/ g). The differences were significant (P<0.05) between control ration and other experimental  rations. Furthermore, ration content date seed treated (R3) had the highest values of DM, OM, CF and EE digestibility. It could be noticed that improving CP, CF and cell wall constituents (NDF, ADF, hemicellulose and cellulose) digestibility may be due to the increasing number of rumen cellulolytic bacteria. In conclusion, the bacterial treatment (Acetobacter xylinum and Thermonospora fusca) with date seed successfully to improve chemical compostion of date seed and Invitro digestiability specially ration contain 25% from total dry matter.  It showed that the strain (Thermonospora fusca) was  the best in In vitro fermentation . Digestibility indicated that ration contain treated date seed (R3) was high DM, OM, ADF and nitrogen than other rations.  It was concluded that treated date seed can replace concentrate in rations and improve In vitro degradability, digestibility trail and no effect on rumen and blood parameters without adversely affecting on helthy animals.

This study was executed during two successive seasons 2014 and 2015 for evaluating the effect of inoculation with Bradyrhizobium sp, Bacillus megaterium, Bacillus circulans, Glomus macrocarpum and Pseudomonas fluorescens on infection percentage, enzymatic activity, growth characteristics, total phenol, peroxidase and polyphenol oxidase activity in presence or absence of Fusarium oxysporum in sterilized or non- sterilized soil under greenhouse condition. The obtained results observed that the tested strains showed suppression for F. oxysporum in vitro. Similar results were obtained under greenhouse experiment where the inoculation of soil with biofertilizers strains in presence of P. fluorescens showed the lowest records of infection percentage as well as the higher values of enzymatic activity, growth characteristics, total phenol, peroxidase and polyphenol oxidase activity compared to full dose of chemical fertilizers treatment. This study provides evidence for diminishing the adverse evolved from the continues application of chemical fertilizers in high doses and replacing it (at least partially) through biofertilizers and biocontrol application.

The aim of this study was to evaluate effect of different level of probiotic supplementation to ruminant rations, using in-vitro batch culture technique to determine degradation and fermentation parameters. In vitro experimental ration was formulated, the ration consisted of 40% alfalfa hay and 60% concentrate feed mixture. Three level of probiotic supplementation (106, 108, 1010 cfu/kg DM) were evaluated. DM and total gas production as well as fermentation parameters of the incubated samples were determined after 24 hrs. of fermentation. Slightly increases (P>0.05) in in-vitro dry matter degradability were observed for the ration supplemented with probiotics bacteria at different levels (106,108 and 1010 cfu/ kg DM) compared to control ration. Probiotics bacteria supplementation with different level (106,108 and 1010 cfu/ kg DM) led to significant (P<0.001) increases in organic matter degradability and total gas production per sample and per g DM, OM, NDF and ADF compared to the not supplemented ration (control ration), and no significant differences were observed among the different levels of probiotics supplementation. Significant increase in total volatile fatty acid concentration after 24 hours' incubation period compared to the not supplemented ration. On the other hand, the treatment supplemented with probiotic recorded lower ammonia concentration compared to the control group. It could be concluded that, adding  probiotics bacteria supplementation to experimental ration resulted increase DM and OM degradability and using dose 106 CFU/kg DM feed is sufficient to induce improvement in degradability and fermentation parameters

Different types of drinking yoghurts were made with different types and concentrations of stabilizers. 6 treatments were made (T1, T2, T3, T4, T5 and T6) using 0.2% and 0.4% of different types stabilizers ( pectin, guar gum, and mixture (1:1) of both pectin and guar gum) for production of other yoghurt drink treatments beside the control without any stabilizers. All treatments were stored up to 14 days at 5±1°C. Drinking yoghurt samples were evaluated for chemical, reholigical, microbiological and sensory attributes. No significant differences were observed in chemical and microbiological properties among control and treated samples. All drinking yoghurt contained levels of (106–107 cfu/g) lactic acid bacteria at the end of the refrigerated storage. Addition of stablizers showed significant differences in viscocitey and serum separation of final product. The effect was more obvious with using 0.2% stabilizer mixture (0.1% guar gum + 0.1% High Methoxy Pectin) than other all treatments. The drinking yoghurt containing 0.2% mix stabilizers (0.1% guar gum + 0.1% High Methoxy Pectin) ranked higher sensory scores than other treatments. The best drinking yoghurt that containing 50% yoghurt, 8% sugar and 42% water should be fortified with 0.2% mix stabilizers (0.1% guar gum + 0.1% High Methoxy Pectin)