bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of adding different level of Bay laurel (Laurus nobilis L.) powder to diet on productive performance and some physiological traits for female Quail
Authors: Hamody S. J. , Bandr L. K. , Qassim A.A. 
Published: May 2021

Abstract
This study was conducted at the Poultry Research Station, Animal Resources Research Department at the Agricultural Research Department / Ministry of Agriculture - Baghdad Abu Ghraib. To find the effect of adding different proportions of Bay Laurus powder on productive performance and some physiological characteristics of birds during the production stage as Eight Hundreds Female birds of quail were used at the age of 45 days, randomly deployed to 4 treatments with two replicates (100 birds / replicate ) each, and the bay laurel powder was added in the proportions 0.0, 0.5, 1.0, and 1.5% to the diets and for a period of 60 days divided into 4 periods of 15-day .The results indicated significant improvement in the productive performance of birds during different feeding periods. An improvement in egg production was evident on the base of H.D% for T2 and T4 treatments during the second, third and fourth periods of breeding. Also, the improvement was evident in the egg mass for T1 (control treatment) in the second and third periods and T3 during the fourth period. The T4 treatment continued its significant improvement during the second, third and fourth periods, the feed consumption decreased for all addition treatments in the fourth period and the food conversion ratio and the cumulative eggs number (egg, bird, period) where improved for the T4 treatment throughout the four trial periods. The level of total protein and globulin increased significantly in the fourth treatment, and the level of globulin for the second and fourth treatments increased compared to the rest of the treatments. We conclude from this study the possibility of adding 0.5-1.5 % feed of Bay laurel powder to the diet to obtain a positive improvement on the productive and physiological performance for female Quail bird.
Estimating of some specific traits of Japanese quail eggs for different levels of blood hemoglobin
Authors: Al-Tikriti S. S. A. 
Published: May 2021

Abstract
This study was conducted in the field of Japanese quail of the Department of Animal Production at the college of Agriculture - Tikrit University for the period from 2/10/2019 to 7/1/2020, the experiment of electing the hemoglobin level in the blood was conducted, as blood samples were drawn from birds at the age of 14 days and after that they were divided into three groups: Control group with range hemoglobin level (11.33 - 11.67) g / 100ml blood, second group with a high hemoglobin level (above 11.67) g / 100ml blood, and a third group with a low hemoglobin level (less than 11.33) g / 100ml blood, each group divided in to 4 subgroup, and each subgroup contain 12 birds, the sex ratio 3: 1 was adopted as one male for three females.The aim of the study was to estimate some of the genetic parameters of egg quality traits in quail, depending on the level of blood hemoglobin at early ages and its effect on productive characteristics. The results showed that there were no significant differences for the characteristic value of the egg shape, the yolk index, the egg albumin index, the Haugh unit, the yolk relative weight rate, and the albumin relative weight of the elected groups for the hemoglobin level in the high, control, and low blood levels. Whereas, there were significant differences (p≤0.05) in shell thickness with membranes as the group of high hemoglobin level over the control group and group of low hemoglobin level. The results also indicate the presence of significant differences (p≤0.05) for the ratio of the relative weight of shell with the membranes among groups selected for high level of hemoglobin level in the blood, control and low hemoglobin level in the blood, as the low treatment outperformed the level of hemoglobin recorded high measurement compared with control.
Isolation and Identification of Alkaline Protease Producing Aspergills niger from Iraqi Soils
Authors: Sedrah Z. T. , Alshamary E. I. , Nassri S. Kh. 
Published: May 2021

Abstract
Twenty purified isolates were obtained by using different soil sources, only twelve isolates belonging to Aspergillus genera depending on cultural and morphological characterization. The isolates were used as alkaline protease producer. The highest proteolytic, enzymatic activity (95.83U/ml) was obtained from Aspergillus sp. ZE isolate. This isolate was identified by 5.8 rRNA gene sequencing as Aspergills niger (accuracy of 99%), which was matched with the sequence of Aspergills niger strain GM775228 recorded in Gene bank under the ID: GM 775228.1.
The Effect of Fenugreek Gum on The Rheological and Qualitative Properties of Pan Bread
Authors: Al-Shammari B. B. , Al-Ali R. M. , Al-Sahi A. A. 
Published: May 2021

Abstract
This research was conducted to investigate the effects of adding levels of Fenugreek seeds gum 0.5-2% on the qualitative and rheological properties of wheat flour (70% extraction).The results of the chemical composition of wheat flour and flour contain fenugreek gum showed that there is an increase in moisture content, protein, fat, ash and carbohydrate as the level of fenugreek gum replacement was increased. Ratios of wet gluten, dry gluten, gluten index and colour in wheat flour contain fenugreek gum was found to be significantly higher (P ≤ 0.05) compared with the control. The rheological properties of flour prepared with an adding of fenugreek seeds gum were estimated. The adding of fenugreek gum caused changes in the rheological properties of dough, The adding of fenugreek gum to the dough led to increased water absorption and dough stability. However, the development time, degree of softening and farinoghraph quality number were decreased. The sensory evaluation of loaf for different treatments showed better acceptability for the blend flour in comparison with the control. However, it can be recommended that the panelists. preferred2% of Fenugreek seeds gum replacement.
Optimization of Phenolic Compound Production By Local Aspergillus Niger B1b Isolate
Authors: Ahmed N. Sh. , Al- Shamary E. I. 
Published: May 2021

Abstract
The objective of this study was to optimize the factors for the production of Phenolic Compound from Aspergillus Niger B1b was obtained from laboratories of the College of Agricultural Engineering Sciences, was isolated from soil and genetic diagnosis .Phenolic compounds were produced from locally isolate under different conditions and extract from filtrate of it by ethyl acetate and identified using high performance liquid chromatography instrument (HPLC). Experiments proved that the optimum conditions for phenolic compounds production of Aspergills Niger isolate were, fructose and yeast extract as sources of carbon and nitrogen with concentrations 51 µg/ml.,72 µg/ml respectively. Optimum Temperatures 0, aeration was 200 rpm, inoculum size 710 spore/ml (80, 102.4, 104.3) µg/ml, respectively. while incubation period was 9 days and the pH with concentrations (125, 131.1) µg/ml, respectively.
Effect of Rhizome’s Extracts of (Alpinia officinarum) in Oxidation Characteristics of Chicken Meat Stored in Cold
Authors: Al-Azzami A.A. , Qasim M. A. , Yaseen A.A. 
Published: May 2021

Abstract
In the current report, we explored the impact of applying ethanol and petroleum ether extracts of rhizome (Alpinia officinarum) on the consistency and shelf life of chicken meat during refrigerated storage (10 days at 4 pm). The findings revealed that both forms of Alpinia rhizomes extracts played a clear function as antioxidants for chicken meat samples. These extracts contributed in a significant decrease (P <0.01). in the value of thiobarbuturic acid TBA, and this provides evidence of the role of the extract in maintaining the quality of chicken meat by reducing oxidation processes. The findings have showed that the incorporation of (Alpinia officinarum) extracts led to a slightly decreased (P 0.01) percentage of free fatty acids formed during the storage time. The findings demonstrated a positive function for the extracts in decreasing the risks of meat oxidation and spoilage by reducing the peroxide value during the cold storage time.
Extraction, Purification and Characterization of β-Galactosidase from Tomato (Lycopersicom esculentum)
Authors: Hussien S. A. , Doosh K. 
Published: May 2021

Abstractβ-galactosidase enzyme EC (3.2.1.23), lactase, can be described as an enzyme of glycoside hydrolase which performs the catalyzing of β-galactosidas hydrolysis to monosaccharides by breaking glycosidic bond. The objective of this study was to extraction and purification β-galactosidase from tomato (Lycopersicom esculentum.), ten Different types of extraction were investigated to selection of the best extraction of the enzyme, The Na. phosphate buffer (0.1M and pH6) had given a highest Specific activity of crude enzyme has been 212.27 U/mg. protein. The purification procedures were performed with the use of the precipitation of ammonium sulfate, Ion-exchange and gel filtration chromatographic techniques. ammonium sulfate (70) % saturation has been the best method for precipitation and partially purification of enzyme with a purification fold 1.83 and enzymatic yield 88.31%. This followed by the use of ion exchange chromatography by DEAE sephadex A50 column, the purification times of the enzymatic extract were 2.36, with an enzymatic yield 25.48%. After the final purification step of gel filtration chromatography using SephadexG-100 column, the enzyme has been purified 3.92 fold with 16.33% of enzymatic yield. The optimum enzymatic activity was found at pH (6). The plant extracts tomato (Lycopersicom esculentum) were used to characterize the enzyme in the term of pH, temperature,. The enzyme activity measured by its ability to hydrolyze the substrate 2-nitrophenyl β-D-galactopyranoside (ONPG). The enzyme activity was reached maximum at 45°C and at pH 5.5. The enzyme’s molecular weight has been estimated to 74 KDa by the gel filtration chromatography method, and 73 k D on SDS-PAGE.
Effect Using Wheat Triticum aestivum and Corn Zea mays in Broiler Diets and Sex on Specific Characteristics
Authors: Yousif S. I. , Al-Hamdani W. A. , Mousa B. H. , Al-Hamdani A. A. Y. 
Published: May 2021

Abstract
This study was conducted on poultry farm belong to Animal production, College of Agriculture, University of Anbar, from 5/2/2020 to 11/3/2020 (35 days). The aim of the study was to find out the effect of cereal type and sex on broiler performance. Four Hundred broiler chicks (males + females) strain (Ross 308) with the average initial body weight of 40 gm / chick used in this study. Chicks randomly assigned to two groups; each group subdivided into two replicates (100 chicks per replicate). Birds in Group 1 (100 males) + (100 females) fed with a diet based on wheat as cereal type, Birds in Group 2 (100 males) + (100 females) fed with a diet based on corn as cereal type. Chemical analysis of corn and wheat were calculated in cereal laboratory to belong to general company of cereals and feeds / Anbar Province, protein, fat, ash, fiber, nitrogen was analyzed. At the field experiment, feed and water provided. Chicks reared in a closed farm containing ground cages with an area 10
m2. Use a continuous lighting program 24 hours/day from the first day of the experiment to the end. The data of Body Weight Gain (BWG), Feed Intake (FI) recorded weekly, and Feed Conversion Ratio (FCR) was calculated.Birds in the group fed diets based on wheat as cereal type (males) showed highest values in body weight and body weight gain, the lowest feed intake, and better-feed conversion ratio during overall experimental periods as compared with other groups. On the other hand, bird’s in-group fed diets based on corn as cereal type (males + females) recorded lowest values in body weight, body weight gain and worst feed conversion ratio. From these results, we can conclude that broiler more efficient when diets based on wheat s cereal type more than corn, especially at an advance age.
Study the Effect of the Quality of Electronic Marketing and its Relationship to Purchasing an Individual
Authors: Ahmed M. A. , Sagid N. M. 
Published: May 2021

Abstract
This research deals with the role of shopping patterns in increasing customer loyalty. An application study and customer satisfaction in the service provided to him through electronic shopping and the aim of this research is to identify the dimensions of electronic service quality and confidence in selling via Internet sites, and the researcher used the method of descriptive analysis, which was based on a component sample From 50 items from Members of a community who are interested in electronic marketing and use simple regression to analyze the data, the study showed the indirect relationship between shopping patterns and customer loyalty. The study found a significant effect of shopping patterns and their dimensions. The study recommended identifying the shopping patterns of customers in order to provide products that suit their needs and desires. The study also recommended the necessity of working to raise the perceived value of the customer by providing products of appropriate quality, as well as raising the level of customer loyalty. In addition, 5 sites were chosen through social networking (Facebook), namely, the girl of Alakaber for clothes - the elegant veil - the cave complex - Handa costumes - Shark costumes to see the quality of the service provided.
Preliminary study on quantitative simulation of Danxia landform evolution under the action of tectonic uplift and running water erosion
Authors: Liu Fujun , Li Xinmin 
Published: May 2021

Abstract
To better understand the influence of lithology, climate and tectonic features on landform evolution of Danxiashan, the research simulate complex Earth systems with Channel-Hillslope Integrated Landscape Development (CHILD) which embodies quantitative hypotheses about those systems. The model verifies the correctness of the concept of developmental stages and divides it quantitatively. The infancy, accounting for the entire evolution of 3%, develops large tracts of Continuous surface; the youth period accounts for 4% in which emerge a large number of negative landforms; the adult period accounting for 52% has longest evolution and there are many vertical cliffs; the late period accounts for 34% when hilltop gradually rounds; the decline phase emerges a chain of undulating hills, accounting for 7%. In geomorphology, mathematical and numerical models provide a crucial link between stratum, climate and tectonics.
Numerical analysis on the reinforcement design of a granular strongly weathered rock slope based on in-situ direct shear test
Authors: Li Changchun , Lin Qida , Lu Weiping , Zhang Zhichao 
Published: May 2021

Abstract
It is difficult in the intact sampling of the granular strongly weathered rock of a slope by bench excavation, which will in turn influence the strength test results. In order to provide more accurate design parameters for the slope, its rock shear strength is analyzed by in-situ direct shear test, then the slope reinforced with different anchor frame beams are simulated by finite element method based on the strength parameters obtained from the in-situ direct shear test. The results show that the strength parameters of the granular strongly weathered rock are c=75.69 kPa and φ=35.23°. Reinforced with 1 ~ 4 layers of anchor frame beams, the maximum lateral displacement of the slope can be reduced by 30%, 47.6%, 53.5% and 53.5% compared with that of the unreinforced slope, respectively, which means that the deformation of the slope decreases with the increase of anchor frame beams. However, the fourth-layer anchor frame beam is not efficiency in the reinforcement. The maximum lateral displacement locates near the second excavation bench, which needs to be specially reinforced in the design.
Research on shock wave propagation characteristics of coal and gas outburst under different pulverized coal particle size conditions
Authors: Zhao Xusheng , Dai Linchao , Cao Jie , Yang Xuelin 
Published: May 2021

Abstract
In order to deeply explore the influence of pulverized coal particle size on coal and gas outbursts, using the self-developed outburst pulverized coal-gas two-phase flow simulation experiment system, the outburst disaster simulation experiment is carried out under the condition of 0.3 MPa carbon dioxide with particle diameters of 3~10 mm, 1~3 mm and 0.5~1 mm, and the characteristics of the wave shape, speed and attenuation law of the shock wave after the highlight are analyzed. The research results show that when the particle size of pulverized coal is 3~10 mm, 1~3 mm and 0.5~1 mm, the maximum shock wave velocity is 358 m/s, 347 m/s and 347 m/s, respectively. The particle size of pulverized coal has little effect on the propagation velocity of the outburst shock wave, but it tends to decrease as the particle size decreases. And the peak overpressure of the shock wave decreases with the decrease of the particle size of the coal. The average attenuation coefficient of the outburst shock wave increases with the decrease of the coal particle size.
Research and application of hydraulic fracturing borehole bag sealing technology
Authors: Zhou Dongping , Wang Xuanlin , Guo Chenye , Zhou Junjie , Wang Kai 
Published: May 2021

Abstract
Aiming at the problems existing in the sealing of fracturing boreholes using the regular bag sealing device in the conventional ‘two sealing and one injection’ process, this paper investigated a practical and reliable ZBQ-30/1.0 modified pneumatic grouting pump for coal mines, optimized the ‘B’ sealing material which was applied for the sealing of fracturing boreholes designed the ‘three sealing and two injection’ hole sealing device which was applied for the sealing of hydraulic fracturing boreholes, and finally carried out in Songzao Coal Mine. The results showed that the strength of the optimized ‘B’ sealing material was 14.64~15.43MPa, which was much higher than that of the regular extraction expansion sealing material. In addition, the hydraulic fracturing could withstand more than 20MPa, and the sealability was also well. This research implied the fixed-point sealing of hydraulic fracturing drilling can be carried out to save the sealing cost.
Study on the influence of angle of bedding plane on stability of roadway surrounding rock in layered mass
Authors: Xu Ziwen 
Published: May 2021

Abstract
In view of the large deformation in the roadway of layered surrounding rock, with W22602 return air roadway of Datong No.1 Mine as the engineering background, using the finite-difference software FLAC3D, we explored the influence of the angle of the bedding plane under the prestressed bolt support on the plastic zone and the stress and strain distribution law of the surrounding rock of the roadway, and analyzed the deformation and failure characteristics of the bedding plane under the action of the bolt. The results show that: with the increase of the inclination of the bedding plane, the horizontal and vertical deformation of the bedding plane first increase and then decrease, showing a “Λ”-shaped change characteristic; in horizontal layered surrounding rock, as the prestress of bolt support increases, the strength of the weak rock layer gradually increases, and the surface displacement of the bedding plane gradually decreases; the plastic zone of the surrounding rock with different dip angles has a significant “angle effect”, and the angle between the bolt and the bedding surface has a significant difference in the control effect of the bedding plane; based on the simulation results when the inclination angle is 15°, field practice is carried out. And it shows that the optimization scheme can improve the stability of the surrounding rock of the roadway more economically and effectively.
Development and evaluation of authigenic acid system in high-temperature carbonate reservoirs
Authors: Xu Zhipeng , Qi Ning , Zhang Zehui , Han Zizhao , Su Xuhang 
Published: May 2021

Abstract
Acidizing the carbonate reservoirs with the conventional acidizing liquid system always causes fast acid-rock reaction and short acidizing distance, and the productivity of oil wells is not significantly improved. The key to improve the acidizing effect in the deep carbonate reservoirs is to optimize the retardation performance of the acid system. The authigenic acid system provides the excellent retardation performance and long acid-rock reaction due to its characteristics of slow and continuous acid generation. Here, an authigenic acid system with the performance of stable and continuous acid generation at high temperature was developed with halide salt, carbonyl compounds and esters. The authigenic acid system provides the excellent acid generation performance, with 12.9% hydrochloric acid generated after reaction at 90°C for 6 hours and 18.9% hydrochloric acid generated after reaction at 150°C for 6 hours. Comparison of hydrochloric acid, viscous acid and authigenic acid by experiments of static corrosion in rock cores shows the longer acid-rock reaction time of the authigenic acid than that of the conventional acids. At 150°C, N80 steel sheet is corroded in the authigenic acid system at the rate of 0.984 gm·−2·h−1, which is lower than the industrial first-class standard and indicates excellent corrosion inhibition performance. Comparison of the acid-rock reaction kinetic equation of hydrochloric acid, authigenic acid in the carbonate rocks shows that the authigenic acid has the acid-rock reaction rate which is an order of magnitude lower than that of the conventional acid and has the better retardation performance, and it can be used to solve the difficulties in the deep acidizing of high-temperature reservoirs.
Study on the wellbore temperature distribution characteristics during foam drilling
Authors: Zhang Xiaoning , Li Lingdong , Zhang Jianli , Ming Ruiqing , Duan Luyi , Wang Guangtai 
Published: May 2021

Abstract
In view of the specific properties of foam drilling fluids, a wellbore temperature calculation model during foam drilling has been established in this study, considering the Joule-Thomson influence, heat generation by pressure drop of nozzle, frictional heating between drill bit and formation, and frictional heating during foam flow. In addition, the solution of this model is solved by coupling method. Through calculation with examples, the results show that at the shallow well section, the foam temperature in annulus is higher than the formation temperature, and at the deep well section, the foam temperature is lower than the formation temperature. With the increase of liquid injection rate and gas injection rate, the foam temperature in annulus at the downhole and in coiled tube decreases, and the foam temperature in annulus at the wellhead increases. The foam injection temperature has a significant influence on the foam temperature. Increasing the injection temperature can improve the foam stability at the downhole.