2024-03-28T16:01:07Z
https://zjar.journals.ekb.eg/?_action=export&rf=summon&issue=5940
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
PROPAGATION OF SOME TOMATO HYBRIDS VIA TISSUE CULTURE TECHNIQUE
Fatma
Sherbeni
E.
El-Ghamriny
Dalia
Nawar
H.
Zyada
This investigation was carried out at the Tissue Culture Lab., Hort. Dept., Fac.
Agric., Zagazig Univ., Egypt during the two successive seasons of 2014 and 2015 to produce
transplants of two tomato hybrids through tissue culture technique. A protocol was developed for
shoot multiplication and rooting in two tomato (Lycopersicon esculentum Mill.) hybrids i.e., Silla 108
and Farrah. Shoot tips were cultured into Murashige and Skoog media (MS medium) with different
concentrations of benzyl adenine (BA) and Kinetin (Kin) 1.5 mg BA/l, 1.5 mg BA/l + 1 mg Kinetin/l,
3 mg Kin/l and 4 mg Kin/l) compared with MS basal medium as a control treatment, the obtained
results illustrated that supplementing BA at 1.5 mg/l gave the highest value of number of
shoots/explant of Sila 108 hybrid followed by kinetin at 4 mg/l for Farrah hybrid in both seasons.
Multiplicated shoots of two tomato hybrids were excised and cultured on MS medium supplemented
with different rooting growth regulators including indole acetic acid (IAA) at 0.5 and 1 mg/l,
Naphthalene acetic acid (NAA) at 1 mg/l and indole butyric acid (IBA) at 1mg/l compared to the
control treatment (without growth regulators). From the foregoing results, it could be concluded that
supplementing IAA at 1 mg/l and NAA at 1 mg/l to MS media were the best treatment for rooting
stage of Farrah and Sila 108 tomato hybrids. The plantlets were transferred to plastic cups containing
peatmoss + sand at 1:1, peatmoos + vermiculite at 1:1 (V/V) or peatmoss alone. It could be concluded
that the agriculture media for acclimatization of plantlets of Farrah and Sila 108 tomato hybrids
produced from tissue culture technique were peatmoss and peatmoss+ vermiculite at 1:1 (V/V).
Tomato
Hybrids
tissue culture technique
2019
01
01
1
11
https://zjar.journals.ekb.eg/article_36439_efa4d80d3d150d44156449d0abf6aea3.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
GROWTH, YIELD COMPONENTS AND CHEMICAL CONSTITUENTS OF Stevia rebaudiana Bert. AS AFFECTED BY HUMIC ACID AND NPK FERTILIZATION RATES
Mona
Mohammed
A.
Meawad
E.
El-Mogy
M.
Abdelkader
Two field experiments were carried out during 2016 and 2017 consecutive seasons ata Private Farm at Mit-Ghamr Distrect, Dakahlia Governorate, Egypt, to study the effect of humic acidrates (0.0, 325.60, 651.2 and 976.80 g/fad.), NPK fertilization rates [0.0, 25, 50, 75 and 100% of therecommended rate (RR)] and their interactions on growth, leaves and herb yield and some chemicalconstituents as well as active ingredients of stevia plants. The obtained results referred that themaximum value for each of plant height, branch and leaf number/plant, total dry weight/plant, dryweight of leaves and herb/fad., total N, P, K and total sugar percentages as well as total chlorophyllcontent (a+b) were detected when plants were applied with the highest rate of humic acid (976.80g/fad.) and fertilized with 75% RR of NPK, in most cases. The main constituents of Stevia rebaudianaleaves as detected by high performance liquid chromatography-mass spectrometry (LC-MS) wereRebaudioside A, Rebaudioside B, Rebaudioside C, Dulcoside and Steviolbioside which increased withtreatment of 100% RR of NPK fertilizers combined with the highest rate of humic acid (976.80 g/fad.)compared to control.
Stevia
Humic acid
NPK
Growth
yield
chemical constituents
stevioside
2019
03
01
13
26
https://zjar.journals.ekb.eg/article_40172_312e50c6238243da4a70ccb95247c6b9.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
TOXICITY OF GRAPHENE NANOPARTICLES WITH SODIUM COPPER CHLOROPHYLLIN OR MAGNESIUM CHLOROPHYLLIN AND EFFECT ON LEVELS OF ACID AND ALKALINE PHOSPHATASE ENZYME OF PEACH FLY, Bactrocera zonata (DIPTERA: TEPHRITIDAE)
Sameh
Abd El-Naby
Graphene nanoparticles are one of the most attractive nanomaterials forcommercialization applications. They have been widely used for antimicrobial, electronic andbiomedical products. In this review, The exposure time to light plays an important role in mortalitypercentage, the percentage mortality increase when the exposure time increase and there an inverserelationship between concentration with the exposure time. Photoactive compound magnesiumchlorophyllin had more significant effect on adult Bactrocera zonata after exposure to sunlight thanmagnesium chlorophyllin with graphene nanoparticles so that there was no benfit to use the mixture ofmagnesium chlorophyllin with graphene nanoparticles, magnesium chlorophyllin was more effeciantthan Copper chlorophyllin with graphene nanoparticles or Copper chlorophyllin. Level of acidphosphatases in the homogenate of Bactrocera zonata, After exposure to sunlight for two hours aftertreated by compound Copper chlorophyllin or Magnesium chlorophyllin, results showed high increase(52.44%, 40.71%). After treated by compound Copper chlorophyllin with graphene nanoparticle orMagnesium chlorophyllin with graphene nanoparticle, the changes in alkaline phosphatases aftertreated by compound Copper chlorophyllin show limited rduction (-16.28%), on the other handMagnesium chlorophyllin showed high incrase (77.14%) relative to control
Bactrocera zonata
photoinsecticide
Photosensitizer
chlorophyllin
illumination with sunlight
Graphene Nanoparticles
exposed
acid phosphatase (AcP)
alkaline phosphatase (AlP)
2019
03
01
27
36
https://zjar.journals.ekb.eg/article_40173_488c9eac8ad595925468d6a337d06b1a.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
دراسة تاثيرنوعين من النيماتودا الممرضة للحشراتSteinernema feltiae (Filipjev) و Heterorhabditis bacteriophora (Poinar)على تثبيط نيماتودا تعقد الجذور Meloidogyne incognita على نبات البامية
يونس
بدر
يهدف هذا البحث إلى دراسة تأثيـــر النيماتودا الممرضة للحشرات (EPNs) على تثبيط الإصابة بنيماتودا تعقد الجذور (R K N) في نبات البامية
أُجريت هذه الدراسة تحت ظروف الصوبة على نباتات بعمر (2–3) أوراق حقيقية من نبات البامية صنف Closs وهو الصنف الأکثر زراعة في المناطق الجنوبية من
أما بالنسبة للنيماتودا فقد أستخدمت يرقات الطور الثاني لنيماتودا تعقد الجـــذور(J2) Meloidoyne incognita لعدوى نباتات البامية
أوضحت نتائج الدراسة إن أستخدام نوعين من النيماتودا الممرضة للحشرات بترکيز (200 and 1000 IJs) طور يرقي لکل أصيص کانت لها تأثير إيجابي في تقليل الإ
کما تبين إن النباتات التي تم معاملتها بترکيز (1000 IJs) طور بأن وزن المجموع الخضري کان أکبـر من النباتات غير المُعامـلة (Control) وکذلک کانت هُنــ
کما لوحـظ إن وزن الجذور کان أکبـر في النباتات المُعاملة فقط بنيماتودا تعقد الجذور
کذلک لوحظ أن جذور النباتات المُعامله بتــرکيز (1000 IJs) طور يرقـــي کانت ذات وزن عقد نيماتودية أکبر بالمقارنة مع النباتات المُعاملة بترکيز (
کما تبين من النتائج إن عدد العُقـد الجذرية کان أعلى في جذور نباتات البامية الملقحة فقط بنيماتودا تعقد الجذور (R K N) بمعامل تعقد الجذور (8.9) م
2019
03
01
37
42
https://zjar.journals.ekb.eg/article_40176_ef6d63790c6652ffcde510f8bf96dc13.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
PREY CONSUMPTION AND FECUNDITY OF Phytoseiulus persimilis ATHIAS-HENRIOT FED ON DIFFERENT STAGES AND DENSITIES OF Tetranychus urticae Koch. (ACARI: PHYTOSEIIDAE: TETRANYCHIDAE) UNDER LABORATORY CONDITIONS
Salonaz
Awad
E.
Mostafa
M.
Mahrous
A.
Salem
The effect of different prey densities and prey stages of Tetranychus urticae onfeeding capacity and fecundity of Phytoseiulus persimilis adult females was studied on leaf discs ofeggplant, Solanum melongena L. (Black Baladi cultivar) during ten days under laboratory consistentconditions of 25 ± 2°C and 65 ± 2% R.H.. The following prey densities were tested: 5, 10, 15 and 20for the tested stages of prey (eggs, larvae, males and females). It was found that all of the prey testedstages were eaten by P. persimilis females. The total average of devoured prey individuals perpredator female during ten days was significantly (P ≤ 0.05) affected by stage and density of theintroduced prey. In all cases, number of preys consumed by predator was increased with increasingprey density. P. persimilis consumed more eggs and larvae than males and females of the prey. Totalaverages of consumed T. urticae eggs and larvae were 35.5, 23.7; 67, 40.1; 82.2, 54.0 and 118.8, 77.2at prey densities of 5, 10, 15 and 20, respectively. The highest consumption was detected when thepredator fed on T. urticae stages at a density of 20/prey. Eggs laid by predator female were differedsignificantly (P ≤ 0.05) according to stage and density of the introduced preys during the experimentalperiod. The greatest number of deposited eggs was observed when feeding on T. urticae eggs followedby females at different prey densities. Total averages of P. persimilis eggs were 10.7, 19.4, 29.7 and32.7 eggs (for prey eggs) as well as 9.2, 13.4, 22.5 and 25.9 eggs (for prey females), at prey densitiesof 5, 10, 15 and 20, respectively. Differences in total number of deposited eggs of P. persimilis werenot significant (P ≤ 0.05) when the predator was provided with larvae, males and females at each of thetested densities of T. urticae. A positive and high significant correlation was found between densitiesof prey stages and each of feeding capacity and fecundity of the predator. Daily number of depositedeggs was gradually increased to reach the highest value on the sixth day in most cases. Thereafter, thedeposited eggs were decreased to the end of experiment. The present study suggests the possibility ofutilization P. persimilis as an ideal biocontrol agent to reduce T. urticae populations on eggplants
Phytoseiulus persimilis
Tetranychus urticae
feeding capacity
prey densities
prey stages
fecundity
Eggplant
2019
03
01
43
50
https://zjar.journals.ekb.eg/article_40180_8fa05f2a4ba93cf2b65b72e80484cefc.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
MANUFACTURING AND PERFORMANCE EVALUATION OF A LOCAL MACHINE FOR EXTRACTING POMEGRANATE SEEDS
Naglaa
Anwar
M.
Morad
M.
El-Sharabasy
T.
Ali
An innovated machine was manufactured for extracting pomegranate seedsdistinguished of high productivity, simple design and low seed damage. The extracting machine wasdepending on an innovative system to extract the seeds from the peels and flesh by vibration.Experiments were carried out to study some different operating parameters which were six differentexciter frequencies S1, S2, S3, S4, S5, and S6 corresponding to 0.0, 28.1, 52.0, 75.9, 101.2 and 121.4Hz respectively, five different sieve amplitudes of 10, 20, 30 40 and 50 mm and four differentseparator shaft speeds of 100, 200, 300 and 400 rpm, affecting the performance of the manufacturedmachine. The machine performance was evaluated in terms of machine productivity, total seed losses,extracting efficiency, specific energy and criterion cost. The experimental results revealed thatmachine productivity (0.25 Mg/hr.), total seed losses (6.01%), extracting efficiency (70.19%), specificenergy (8.8 kW.hr./Mg) and criterion cost (400 LE/Mg) were in the optimum region under thefollowing conditions of 101.2 Hz exciter frequency, 40 mm sieve amplitude and 200 rpm separatorspeed.
Pomegranate extracting
pomegranate deseeding
pomegranate
2019
03
01
51
63
https://zjar.journals.ekb.eg/article_40182_72b062583125c8822b0411ec3cb861d4.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
PERFORMANCE EVALUATION OF A SMALL AC/DC SOLAR WATER PUMPING SYSTEM FOR ROOF CULTIVATION
Samar
Hassan
M.
Abd El-Wahab
A.
El-Shal
W.
Abd Allah
Solar water pumping for irrigation and drinking purposes is considered one of themost recently power system needed. The most important usage of solar pumping systems is to irrigatethe agricultural lands to help farmers instead of using electrical or fuel system that take a lot of time,high cost, effort and much losses. In this research, the performance evaluation of a mini water pump (5Watt) powered by small solar photovoltaic (PV) panel (10 Watt) was investigated to supply the neededwater for irrigating roof cultivation units. The experiments were carried out at Faculty of Agriculture,Zagazig University, Sharkia Governorate, Egypt (Latitude 30.5o – Longitude 31.5o) in winter andsummer seasons of 2018. Two solar pumping systems were evaluated; DC solar pumping system(DSPS) and AC solar pumping system (ASPS) under different operating parameters of PV panel tiltangles (15o, 30o, 45o, 60o and 75o), solar radiation hours during daylight (9:00 to 15:00) and pumpingheads (0 ,0.5, 1 and 1.5 m). All parameters were evaluated by determinations of pumping discharge,hydraulic energy, pump efficiency and cost. The obtained results revealed that, the best PV panel tiltangle for Zagazig region was 45o and 30o in winter and summer, respectively. Discharges andpumping efficiencies of ASPS were higher than DSPS. The optimum pumping conditions were 0.25and 1 m of pumping heads with 220 l/hr., and (83 l/hr., for winter, 88 l/hr., for summer) of pumpingdischarge for ASPS and DSPS, respectively. Pumping costs of one cubic meter of water by DSPS atpumping heads of 0, 0.5, 1 and 1.5 m were (0.16, 0.17, 0.19 and 0.21 LE) and (0.15, 0.17, 0.19 and0.21 LE), during winter and summer seasons, respectively. While pumping costs of one cubic meter ofwater using ASPS were about 0.22, 0.45, 1.23 and 7.11 LE/m3 at the same heads, respectively. So, asmall size of solar PV power system can be efficiently supply irrigation water for roof cultivation units.
PV
DC solar pumping system (DSPS)
AC solar pumping water (ASPS)
tilt angle
discharge
hydraulic energy
Pump efficiency
cost
2019
03
01
65
80
https://zjar.journals.ekb.eg/article_40320_1bfdc650ba3ee9f994686ebe1952827f.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
PHYSICOCHEMICAL AND MICROBIOLOGICAL PROPRIETIES OF SOME MEAT PRODUCTS IN SHARKIA GOVERNORATE, EGYPT
Mohamed
Ragab
A.
Toliba
G.
Galal
S.
Abo Elmaaty
Meat and meat products differ in their physical and chemical properties dependingon the characteristic of meat cuts, the additional material and the method of manufacture. The presentinvestigation was planned to evaluate the physical and chemical quality for some types of local meatproducts, such as beef burger and luncheon, collected from local markets in Zagazig city, SharkiaGovernorate, Egypt. Microbiological and physicochemical proprieties of nine meat products (3samples of beef burger of Americana, Halwani and Fragello, 3 samples of beef luncheon ofAmericana, Halwani and Fragello and 3 samples of chicken luncheon of Americana, Halwani andFragello) were carried out. The obtained results declared that samples of beef burger produced byFragello contained the lowest parameter of total protein (14.7%), while samples of beef burgerproduced by Americana showed the highest values (16.90%). Beef and chicken luncheon produced byFragello contained the highest values of total protein (16.0% and 15.05%) respectively. Also, samplesof beef burger and beef, chicken luncheon produced by Fragello contained the highest values of totalfat. Regarding the microbiological evaluation, results showed that the lowest content of total bacteriacount was observed in different meat products such as luncheon Halwani, coliform group andstaphylococci were not detected in all products. Also, beef burger, beef and chicken luncheon samplesof Halawani had high values of yellowness (b), and redness (a). However, the microbiologicalevaluation indicated that Halwani products were the best.
Beef luncheon
Beef burger
chemical properties
microbiological evaluation
2019
03
01
81
90
https://zjar.journals.ekb.eg/article_40322_07595708b01551f5df526d6d0ba36862.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
STUDIES ON UTILIZATION OF SECOND GRADE BISCUITS (SGB) AS ADDITIVE TO DOUGH IN MANUFACTURING OF BISCUITS
Mahmoud
Bendary
F.
Hassanien
K.
El-Sahy
A.
Salama
A.
Soliman
Biscuit manufacturing generates second grade biscuits (SGB) in the form of loosebiscuits, overweight biscuits, underweight biscuits, unpacked biscuits and packing defective, whichare considered waste. The objective of this study was aimed to produce low cost biscuits. In thepresent study, SGB were utilized as additive to dough of biscuits aim to low the cost and to improvethe quality of biscuits. The results indicated that there were no discernible sharp destroyed in thespecific attributes of crust appearance, texture, crispness, taste, odour and overall preference betweenall biscuit samples produced with addition of biscuit powder (SGB) and control. From the sameresults, it could be noticed that overall acceptability of biscuit samples with addition of SGB did notdiffer significantly from control.
biscuits
second grade biscuits
substitutes
overall acceptability
Sensory evaluation
Chemical composition
physical composition
2019
03
01
91
98
https://zjar.journals.ekb.eg/article_40323_16c85ac12fa90298d99ead9f6ceb30dd.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
FUNCTIONAL PROPERTIES OF FABA BEAN PROTEIN AND EFFECT OF ENZYMATIC HYDROLYSIS ON ITS ANTIOXIDANT ACTIVITY
Mostafa
Ali
Protein play an important role in determining structure and texture of various foodproducts. Therefore, the goals of this research were to study the functional properties of faba beanprotein cultivar, Giza3, compared to ß-Lactoglobulin (ß-Lg) and to hydrolyze this protein using pepsinat different pH values (1.5 and 3) and different incubation periods (0, 5, 10, 60, and 180 min) tocharacterize the resultant hydrolysates and evaluate their antioxidant activities. The solubility atdifferent pH, emulsifying properties, stability against creaming and oil droplets size, of faba beanprotein were tested compared to ß-Lg protein. The findings cleared that the solubility and emulsifyingproperties of faba protein were very low compared to ß-Lg. Concerning to hydrolysis process, thedegree of hydrolysis at pH 1.5 was higher than that at pH 3. The molecular weight distribution bandsof faba protein hydrolysates were in the range of 9–98 kDa using SDS-PAGE method while, peptideswere in the range of 500 – 4000 Da using MALDI-TOF MS method. The results of both methodsconfirmed that the hydrolysis at pH 1.5 was higher than pH 3. Moreover, the enzymatic hydrolysissignificantly improved the antioxidant activity of faba bean protein. Hydrolysates produced at pH 3had a slight high antioxidant activity than at pH 1.5 at all incubation periods. Finally, these resultssuggest that faba bean hydrolysates could be used in preparing functional foods and as naturalantioxidants to prevent oxidation process in food products.
Faba bean protein
Functional properties
enzymatic hydrolysis
SDS-PAGE
MALDITOF MS
Antioxidant activity
2019
03
01
99
114
https://zjar.journals.ekb.eg/article_40325_282ea95453bebe22a010db91bde33e49.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
ANTICANCER EFFECTS OF TOW TRADITIONAL DRINKS HIBISCUS (Hibiscus sabdariffa LINN) AND LIQUORICE (Glycyrrhiza glabra)
Ahmed
Elkattan
S.
El-Saadany
A.
ElSayed
A.
Gomaa
J.
Abdalmuneim
Breast cancer (MCF-7), as well as liver cancer (HepG2), were the leader among newcancer cases. The objective of this study is to assess the viability percentage of tow traditional drinks(hibiscus and liquorice extracts) toward human breast and liver cancer cell lines at differentconcentrates from 250 to 5000 μg/ml in hibiscus extract and from 50 to 3000 μg/ml in liquoriceextract. The viability percentage of hibiscus on breast and liver cancer cell lines were 86.9% and84.7% at 5000 μg/ml, respectively. The IC50 of the hibiscus extract were 18478.6 μg/ml and 16159μg/ml breast and liver cancer. In addition, the viability percentage of liquorice extract on breast andliver cancer cell lines were determined. Results revealed that liquorice extract has possessed high anticarcinogenicproperties it was zero (%) at 3000 μg/ml for breast cancer and 5% for liver cancer atsame concentration, the IC50 was 491.7 μg/ml in breast cancer and was 125 μg/ml in liver cancer cellline. DNA damage was determined to detect oxidative DNA damage in HepG2 cell line. This enhances therole of these traditional drinks especially liquorice as anti-cancer agents.
Breast cancer (MCF-7)
liver cancer (HepG2)
traditional drinks
Hibiscus sabdariffa linn
liquorice (Glycyrrhiza glabra)
2019
03
01
115
122
https://zjar.journals.ekb.eg/article_40329_8e8a60494c927cdb9875501cf8c5f929.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
GENETIC EVALUATION OF NEW PROMISING MUTANT LINES OF CANOLA (Brassica napus L.) UNDER THREE GENERATIONS AND TWO DIFFERENT LOCATIONS
Mona
Farrag
S.
Soliman
I.
Amer
Rania
Heakel
The present study aimed to evaluate new promising mutant lines for canola under three generations (M6, M7 and M8) and different locations [Ras-Suder-Sina (saline) and Inshas (harsh and poor fertility land)] for seed yield and its attributes, i.e. plant height, No. of pods/plant, seed weight/plant and 100 seed weight, as well as oil and protein content with comparison of the mother varieties. Studying the stability of new mutant lines during three generations (2014, 2015 and 2016) under two locations. The evaluation of mutant lines for seed yield and its attributes of mutant lines showed that lines 11,63.74 and 92 possessed highly significant than the other mutants and their parents for No. of pods/plant and seed weight/plant in both locations. The results confirmed more stability for mutant lines at Inshas location than at Ras-Suder location. The genetic response of genotypes under different locations confirmed the more stability of line 8 than the other mutant lines followed by lines 11, 66, 74 and 75. Oil percent was highly correlated with seed yield and its attributes as well as the improvement of seed yielding lead to improvement of oil percent. Protein content showed a negative correlation with almost yield criteria except for seed weight. The important remark of these results is the plant height as morphological criteria could be used as morphological marker for selection of high yielding new lines of canola. The results concluded that line 8 followed by lines 11, 66, 74 and 75 are excellent new genotypes which could be introduced in breeding programs to obtain new Egyptian canola varieties.
canola
Gamma rays
mutants
Genetic analysis
oil (%)
protein (%)
2019
01
20
143
155
https://zjar.journals.ekb.eg/article_46398_5d43fb90302575f3d533383a9cbab25b.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
IMPACTS OF COMMERCIAL PROBIOTICS ON GROWTH PERFORMANCE, DISEASE RESISTANCE AND PROFITABILITY OF NILE TILAPIA (Oreochromis niloticus) UNDER STOCKING DENSITY STRESS
Mohamed
Mohamed
Hemat
Mahmoud
G.
Abd-El-Rahman
M.
Ayyat
The current research aimed to reduce the effects of increasing Nile tilapia (Oreochromis niloticus) fish stocking density (SD) as stress factor by using dietary commercial probiotic supplementation (biogen® or Bactocell®). The experimental Nile tilapia (mean weight of 4.00 g) were distributed by random into 18 hapa (1.5 X 2 X 2 m), representing to 6 treatments (3 replicates per treatment). In a 2 × 3 factorial arrangement, fish were divided into two main groups. The first group was stocked at 100 fish/m3 and the second was stocked at 150 fish/m3. Each group was divided into 3 sub-groups; the 1st sub-group was fed on a diet without supplementation with commercial probiotics, the 2nd and 3rd sub-groups were fed on diet supplemented with 2 g Biogen and 0.5 g Bactocell/kg diet, respectively. The obtained results showed that all tested water quality measurements were suitable for rearing Nile tilapia fingerlings. With increasing fish stocking density, final body weight (FBW), daily weight gain (DWG), specific growth rate (SGR) and daily feed intake (DFI) of fish significantly (P<0.001) decreased and feed conversion ratio (FCR) significantly (P<0.001) impaired while, survival rate significantly (P<0.001) increased. The highest value for each of (P<0.001) FBW, DWG, SGR and DFI were achieved in fish groups fed diets supplemented with probiotic, while FCR significantly (P<0.001) improved. The interaction between fish SD and dietary probiotic supplementation significantly (P<0.01) affected FBW, DWG and DFI, while SGR and FCR were insignificantly affected. All blood components studied were insignificantly affected with fish SD. Hemoglobin, RBCs, WBCs, total protein, albumin and globulin of Nile tilapia fish significantly (P<0.001) affected with probiotic treatments. The interaction between fish SD and dietary probiotic supplementation significantly (P<0.01) affected WBCs only. Approximate analysis of body composition of Nile tilapia fish showed that, ash percentage only significantly (P<0.05) affected with SD, while crude protein, ether extract and ash percentages were significantly (P<0.001) affected with probiotic treatments. Within low SD the percents relative level of protection (RLP) after the challenge infection test using A. hydrophila in fish groups fed diet supplemented with biogen or bactocell were 100 and 60%, respectively. While, with high SD the RLP was 100 and 75% in fish groups fed diet supplemented with biogen and bactocell, respectively as compared with control fish group in the two levels of SD which recorded 0% of RLP. Final profit margin increased by 30.37 and 10.37%, in fish group stocked at high density and fed diet supplemented with biogen or bactocell, respectively when compared with fish group stocked at low density and fed diet without probiotic. The obtained results recommended that dietary probiotic (biogen or bactocell) supplementation to Nile tilapia (Oreochromis niloticus) diets reduce the effects of increasing stocking density as stress factor and achieve better growth performance, high disease resistance and high margin.
Nile tilapia
stocking density
biogen
bactocell
Growth performance
disease resistance
2019
01
22
157
170
https://zjar.journals.ekb.eg/article_46403_5b53d1deab9d4f52533ce26540a61599.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
دراسة وتحليل مدخل إدارة التکاليف اللوجستية ومدى ملائمة استخدامه فى التسعير المتوقع لخدمات ميناء شرق بورسعيد
هبه
البغدادى
لتحقيق التشغيل الاقتصادى الأمثل وسرعة الأداء لها، واستعراض الخصائص الرئيسية التي تميز الاستثمار في قطاع الموانئ، وإبراز أهمية موقع ميناء شرق بورسعيد ودوره کميناء محوري ومرکز لوجستي عالمي، وأجرى ذلک البحث لدراسة وتحليل مدخل التکلفة اللوجستية ومدى ملائمة استخدامه لتسعير خدمات ميناء شرق بورسعيد الجديد لتطوير نظم التکاليف المطبقة في البيئة التقليدية الحالية لصناعة النقل البحري، وکانت أهم النتائج التى توصل إليها البحث: توافر القدرة التنافسية للموانئ المصرية ومنها ميناء شرق بورسعيد وقدره الميناء على التعامل مع وظائفه بدلا من خسارة فرص السوق، وإن استمرار تطبيق أسلوب التکاليف اللوجستية في تسعير خدمات ميناء شرق بورسعيد وإعادة الهيکلة المالية مطلب ضروري للمنافسة الحقيقية بين موانئ العالم، وإن تطوير الموانئ أدى إلى زيادة المنافسة لتحقيق قيمة مضافة وبالتالى تحولت إلى مراکز لوجستية للأنشطة التى تحقق قيمة مضافة للميناء، ولرفع کفاءة أداء النقل والشحن والتفريغ يجب تحويل الميناء إلى ميناء محورى يعتمد على اللوجستيات ليکون الميناء مرکز مفصلى أساسى في سلسلة النقل المتکامل، وإن تطوير الأداء التشغيلى الوطنى هو مطلب قومى بقدر ما هو مطلب اقتصادى وأدراک مدى خطورة سيطرة خدمات النقل البحري الأجنبى ويبرر هذا اهتمام الدولة بتطوير ميناء شرق بورسعيد وتحويله لمرکز لوجستى عالمى.
إدارة
التکاليف اللوجستية
التسعير
ميناء بورسعيد
2019
01
22
171
181
https://zjar.journals.ekb.eg/article_46406_572290ab1d2fa52cced56d12fee471c9.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
تأثير کفاءة أداء عمليات النقل والشحن والتفريغ على الأداء الاقتصادي المتوقع لميناء شرق بورسعيد
هبه
البغدادى
استهدف هذا البحث: عرض وتحليل لماهية اللوجستيات وأهدافها ودراسة المشکلات الحالية لتسعير خدمات ميناء بورسعيد باستخدام نظم التکاليف المطبقة حاليا، السعي الدائم للبحث عن أفضل الخدمات التي يجب أن تقدم للعملاء من نقل وشحن وتفريغ والذى يعطى الميناء الميزة التنافسية القوية التي تساعده في تعظيم إيراداته، سوف تساعد الدراسة في تحليل وتقييم الموانئ المنافسة من حيث الإمکانيات والآليات المستخدمة والعمل على منافستها عن طريق رفع کفاءة الأداء التشغيلى وزيادة التحديث والربط اللوجستى لجذب التجارة العالمية التي تساعد في عملية النمو الأقتصادى للدولة، وکانت أهم النتائج التى توصل إليها البحث: أن تحقيق الطريقة المثلى لرفع معدلات أداء الشحن والتفريغ والنقل يمکن أن تقدم على عدد من المعايير منها الربح والتکاليف، حيث يلعب الربح دوراً مهما کهدف أساسى لأى نشاط أقتصادى وهو معيار الأمثلية لتشغيل الموانئ کما تعتبر التکاليف من أهم العناصر المؤثرة على استمرارية الميناء وقدرته التنافسية وعليه يکون تشغيل الميناء بأقل تکلفة تشغيل ممکنه دليلاً واضحاً على التشغيل الأمثل لعملية الأداء بالموانئ، وسهولة القضاء على المشاکل المتعلقة بمناوله البضائع "شحن وتفريغ" من خلال المراکز اللوجستية وسرعة تقديم الخدمة وسهولتها، مما يتطلب تحويل الموانئ المصرية من موانئ تقليدية إلى موانئ لوجستية متکاملة، وأوصى البحث بعدة توصيات منها: يجب أن يتوافر للموانئ المصرية- ومنها شرق بورسعيد – البادئة A Bias for Action وتعنى قدرة الميناء على التعامل مع وظائفه بدلا من خسارة فرص السوق، وإدخال أنظمة تکنولوجيا المعلومات والتبادل الألکترونى نظام EDI لربط أنظمة النقل متعدد الوسائط بعضها ببعض وللسيطرة على خدمات التزامن المحکم Just in time على أن تکون الموانئ هى المنصة التى تسيطر على هذه الأنظمة، و ضرورة السيطرة على تعريفه الخدمات داخل الموانئ ولا تترک لکل جهة حکومية عاملة داخل الميناء حرية تحديد السعر الذى يناسبها، مما يضر بسمعه الميناء ککل، لتکاليفه العالية مما يجعل الموانئ المصرية موانئ طاردة وليست جاذبة.
النقل
الشحن
التفريغ
الآداء الاقتصادى
ميناء
بور سعيد
2019
01
22
183
197
https://zjar.journals.ekb.eg/article_46408_4f7ae18a136b868b9ac0bdbf127e5b41.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
تحليل مؤشرات الاستثمار الأجنبي المباشر فى إندونيسيا ومصر خلال الفترة 1990-2015
ماهر
عطية
على
إبراهيم
يعتبر الاستثمار الأجنبي المباشر ظاهرة اقتصادية قديمة تجلت بوضوح نسبي مع مطلع القرن التاسع عشر لتبرز بقوة بعد الحرب العالمية الثانية مما جعلها تکون محل اهتمام العديد من الاقتصاديين، ويکمن السبب في بروز موجة الاستثمار الأجنبي المباشر في کونه وسيلة تمويل بديلة تلجأ إليها الکثير من الدول التي تواجه العجز في تمويل استثماراتها المحلية بسبب انخفاض الادخارات في تلک البلدان ونقص المساعدات والمنح المالية المقدمة من طرف المؤسسات المالية الرسمية وغير الرسمية، صعوبة الحصول على اقتراض خارجي، حيث يلعب مناخ الاستثمار تأثيرا کبيرا في جلب الاستثمار الأجنبي المباشر، الهدف الرئيسي من هذه الدراسة هو تحليل مؤشرات الاستثمار الأجنبي المباشر في مصر وإندونيسيا خلال الفترة من 1990-2015، أظهرت النتائج أن إجمالي الدين الخارجي أقل في مصر منه في إندونيسيا، نسبة الاستثمار الأجنبي المباشر إلى الناتج المحلي الإجمالي أقل في مصر منها في إندونيسيا، معدل نمو الناتج المحلي الإجمالي أقل في مصر منه في إندونيسيا.
الإستثمار الأجنبي المباشر
إجمالي الدين الخارجي
نسبة الإستثمار الأجنبي إلى الناتج المحلي الإجمالي
معدل نمو الناتج المحلي الإجمالي
2019
01
22
199
208
https://zjar.journals.ekb.eg/article_46409_cdc879acdfe3972a80395764a40e2edf.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
ECONOMIC ANALYSIS OF SUGARCANE AND SUGAR BEET IN EGYPT
Yahia
Elasraag
Sugarcane and sugar beet are the sources of sugar in Egypt. Upper Egypt’s economy is heavily dependent on sugarcane production. Disruptions to the area planted with sugarcane would impact the livelihood of many families that live directly on it’s farming, plus a plethora of ancillary business built around sugar production. The study aims to analyze the production, area and yield of sugarcane and sugar beet in Egypt. The study used the regression as a statistical technique that shows the relationship between the independent variable and the dependent variable. The mean of sugarcane production for the time period 1994-2016 was 15532.49 thousand ton while for the sugar beet production was 4987.03 thousand ton. The mean of sugarcane area is 133.54 thousand hectare and for sugar beet area is 99.60 thousand hectare. The results indicated that the area of sugarcane in Egypt is significant at the level of 1%, the regression coefficient of this variable equal 0.944 this result indicates that 1 percent increase in the area of sugarcane resulted in an increase in the sugarcane production by 0.922. The area of sugar beet in Egypt is significant at the level of 1%, the regression coefficient of this variable equal 1.073 this result indicates that 1 percent increase in the area of sugar beet resulted in an increase in the sugar beet production by 1.073. The study recommends improving the technology and procedures of work to produce sugar beet seeds in Egypt; increase the research with the purpose of taking advantage of genetic improvements, which should enable the introduction of new varieties with higher productivity and quality; government policy should encourage and incentive the farmers in different governorates to produce the most efficient crop in their governorates.
Sugarcan
Sugar beet
Egypt
regression
2019
02
22
209
215
https://zjar.journals.ekb.eg/article_46411_52cb8792605b44351902bf970bdc9093.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
تصــميــم توليفـــة طــاقـــة مثلــى بيئيـــاً لـــدولـــة الصيـــن
منى
أحمد
فاطمة
الشربيني
في هذا البحث تم تصميم ثلاث توليفات طاقة مثلى بيئياً لدولة الصين يعکس کل منها فلسفة إنتاج وإستهلاک معينة، وقد تم بناء نموذج رياضي يتضمن دالة هدف خطية وثلاث مجموعات من القيود الخطية، وقد انعکست فلسفات الإنتاج والإستهلاک على القيود من خلال ثلاث سيناريوهات، کل من هذه السيناريوهات يمثل مسألة أمثلية، تم حل مسألة الأمثلية في کل من هذه السيناريوهات باستخدام طريقة السمبلکس ذات المرحلتين حيث تم التوصل إلى توليفة مثلى بيئياً، تم إجراء مقارنة بين التوليفات المثلى بيئياً المقترحة والتوليفة المطبقة حالياً في الصين من حيث کمية الإنبعاثات الکربونية. وقد أظهرت المقارنة أن التوليفات المقترحة الثلاث ينتج عنها إنبعاثات کربونية أقل من تلک التي تنتج من التوليفة المطبقة حاليا في الصين، کذلک تم مقارنة معدل کمية الإنبعاثات الکربونية للفرد مع المعدل العالمي، وقد أظهرت المقارنة أن معدل الإنبعاثات للفرد في السيناريوهين الأول والثالث المقترحين أقل من المعدل العالمي في حين أن معدل الإنبعاثات للفرد في التوليفة المطبقة فعليا في الصين يتجاوز المعدل العالمي.
توليفة طاقة
أمثلية بيئية
طريقة السمبلکس
2019
02
22
217
225
https://zjar.journals.ekb.eg/article_46413_a47860218630343f7481cd8cf0cff3de.pdf
Zagazig Journal of Agricultural Research
1110-0338
1110-0338
2019
46
1
معرفة الأمهات بفوائد ومتطلبات الرضاعة الطبيعية في محافظة إب بالجمهورية اليمنية "دراسة حالة مستشفى الأمومة والطفولة"
محمد
السکران
محمد
مکارم
أحمد
حراب
فواز
صالح
استهدف هذا البحث بصفة أساسية التعرف على مدى معرفة الأمهات بفوائد ومتطلبات الرضاعة الطبيعية، وکذلک دراسة العلاقة بين الصفات الشخصية والاجتماعية والاقتصادية للمبحوثات کمتغيرات مستقلة، ودرجة معرفة الأمهات بفوائد الرضاعة الطبيعية للطفل والأم کمتغير تابع. وقد تم أجراء الدراسة في محافظة إب وتضمنت شاملة البحث جميع الأمهات اللواتي يراجعن قسم التطعيم بمستشفى الأمومة والطفولة بمحافظة إب في الجمهورية اليمنية خلال العام 2017م وتم أخذ عينة عشوائية بسيطة ممثلة لمجتمع الدراسة قدرها 120 من شاملة العينة، أوضحت نتائج الدراسة أن نسبة الأمهات ذوي المعرفة العالية بفوائد الرضاعة الطبيعية للطفل حوالي 74.2% من إجمالي الأمهات في العينة المدروسة، فيما يتعلق بمستوى معرفة الأمهات بفوائد الرضاعة الطبيعية بالنسبة للأم فقد بلغت نسبة الأمهات ذوي المعرفة المرتفعة حوالي 76.7%، کما تبين وجود علاقة طردية معنوية عند مستوى معنوية 0.01 بين الحالة التعليمية، معانات الأم من أمراض مزمنة کمتغيرات مستقلة وبين درجة معرفة الأمهات بفوائد الرضاعة الطبيعية کمتغير تابع حيث بلغ معامل الارتباط البسيط لسبيرمان لکل منها على التوالي 0.245**، 0.255** وتبين وجود علاقة معنوية طرديه عند مستوى معنوية 0.05 بين المنطقة الجغرافية وبين درجة معرفة الأمهات بفوائد الرضاعة الطبيعية کمتغير تابع حيث بلغ معامل الارتباط البسيط لسبيرمان 0.221، توصي هذه الدراسة بنشر المعرفة بأهمية الرضاعة الطبيعية من خلال القابلات والحملات الوطنية للتحصين من الأمراض، عمل برامج موجهه تستهدف متطلبات الرضاعة الطبيعية للطفل والفترات الزمنية المناسبة والإجراءات المتبعة.
معرفة الأمهات
فوائد الرضاعة الطبيعية
متطلبات الرضاعة الطبيعية
الجمهورية اليمنية
2019
02
22
227
236
https://zjar.journals.ekb.eg/article_46415_19889d0501c53caecf74da8b425cc34f.pdf