خيارات البحث
النتائج 441 - 450 من 824
A study on the effect of age, breed and season on sexual behaviour, testosterone concentrations and scrotal circumference in Egyptian rams النص الكامل
2019
Ahmad S. Mostafa | Mostafa M. Farghal
The objective of this study was to detect the influence of age, breed and season on sexual behaviour, testosterone concentrations and scrotal circumference in Egyptian rams. The study was carried out at agricultural research center belonging to Minia University, Shosha village, Samalut city, El-Minia. Ten crossbred and five adult Ossimi rams were used during this study. Every ram was allowed to breed two ewes to evaluate its sexual behaviour for a twenty minutes test. Blood samples were collected three times per season at two weeks interval from each ram during the period of experiment to measure testosterone concentrations. Also, scrotal circumference was measured at the same frequency and time interval as blood samples. Sexual behaviour was better in old rams than young ones (p<0.01), but it was not affected by breed or season (p>0.05). Serum testosterone level was higher at autumn (7.13±02.9 ng/ml) than at winter (5.54±0.29 ng/ml) in crossbred rams (p<0.01), while in Ossimi rams, higher level was obtained in spring (8.24±.39 ng/ml) than in summer (3.99±0.40 ng/ml). Mean scrotal circumference was higher in older rams (30.20±1.20 cm) than younger rams (22.53±1.27 cm). There was no significant difference for measures of scrotal circumference between crossbred rams (30.86±1.09 cm) and Ossimi rams (30.93±1.06 cm). Season had no significant effect on scrotal circumference in crossbred rams, whereas in Ossimi rams the effect of season was significantly obvious with the highest and lowest values were recorded in spring (31.0±1.05 cm) and winter (30.60±1.17 cm) respectively. It could be concluded from this study that the age of rams had a great influence on their sexual behaviour and scrotal circumference, while the effect of breed and season on sexual behaviour and scrotal circumference was not clear.
اظهر المزيد [+] اقل [-]Cross-sectional anatomy, magnetic resonance imaging and computed tomography of fetlock joint in camel النص الكامل
2019
Ibrahim, A.A.H. | Adam, Z.E. | Tawfiek, M.G.
The current study aimed to describe the normal cross sectional anatomy, magnetic resonance imaging and computed tomography of fetlock joint in adult camel from both sexes. The study was carried out on twelve fetlock joints of fresh cadavers from three camels. The case history of these camels indicated that they were grossly normal with no orthopedic disorders. The cadaveric fetlock joints (n=12) were scanned using CT scanner and a 1 Tesla MRI scanner, injected with colored latex and sectioned into transverse, dorsal and sagittal slices. Cross anatomical sections were correlated with their corresponding CT and MR images for evaluation of the normal relevant anatomical structures which appeared with different signal intensities on CT and MRI scans. The current study revealed that all major soft tissues in fetlock joint of camel were clearly visualized on both CT and MR images, except the short and cruciate sesamoidean ligaments which could not be identified on both CT and MR images. The anatomical sections with the corresponding CT and MR images obtained in this study could be used as a reference for diagnosis and interpretation of clinical diseases in fetlock joint of camel.
اظهر المزيد [+] اقل [-]The ameliorative effect of methanolic red carrot extract and vitamin E against cadmium-induced testicular toxicity in rats النص الكامل
2019
Kamel M. A. Hassanin | Ahmed Abdel-Wahab | Ahmed A Mahmoud | Abdel-Razik H. AbdelRazik | Walaa I. E. Abdel-Badeea
The current study aimed to investigate the effects of methanolic red carrot extract (MRCE) against cadmium intoxication on testis of adult Wister albino male rats. For that purpose, forty eight Wister albino male rats were randomly divided into four groups (12 rats per group). Group 1 (normal control), animals received corn oil. Group 2 (cadmium group), animals received cadmium chloride (CdCl2) at a dose of (5 mg/ kg BW). Group 3 (cadmium &Vit. E group), animals received vitamin E at a dose of (400mg/kg BW) and CdCl2at a dose of (5 mg/kg BW). Group 4 (cadmium & red carrot extract, animals received methanol: water red carrot extract (1:1) at a dose of 400 mg/kg and CdCl2 at a dose of (5 mg/kg BW). All rats were received their corresponding treatment orally by gastric gavage daily for 4 weeks. Result of organ weight analysis in Cd –exposed rats showed a decrease in testes weight. On the contrary, MRCE and vitamin E prophylactic co-treatments with cadmium showed significant increase in testis weights in comparison to cadmium group (P<0.05). Moreover, sperm concentrations were reduced markedly with cadmium while they were upturned greatly after prophylactic co-treatment with either MRCE or vitamin E (P<0.05). Moreover, cadmium induced a significant increase in testicular malondialdehyde (MDA) and significant decrease of total antioxidant capacity (TAC) but both MRCE and vitamin E supplementation succeeded markedly to produce a significant reduction in testicular MDA and noticeable increase of TAC level. Thus, MRCE and vitamin E could be considered optimal prophylactic treatments to protect the testis of rats from cadmium intoxication.
اظهر المزيد [+] اقل [-]Microbiological evaluation of chicken meat products النص الكامل
2019
F. A. Khalafalla | Fatma, H. M. Ali | A. El-Fouley
The aim of the present study was to compare the microbiological quality and safety of chicken products collected from a poultry processing plant and from the retail market. The collected samples represented 120 chicken product samples (mortadella, frankfurters, burgers, nuggets, fillet and fajita); 60 samples were collected from a poultry processing plant and 60 samples were from retail markets. For assessing the microbiological quality of these products, total bacterial count (TBC), most probable number (MPN) of coliforms and total mold and yeasts were determined. While, for evaluating the safety of collected products, Staphylococcus aureus, Salmonella, E. coli and Listeria monocytogenes were investigated. As well as, sensory evaluation of collected products was carried out. It was found that the bacterial counts in samples collected from processing plants were lower than corresponding samples collected from retail market. For instance, the obtained mean values of TBC in processing plant samples were 1x10, 4x102, 2x10, 2x10, 3x10 and 6x10 CFU/g in case of chicken mortadella, chicken frank, chicken nuggets, chicken burger, chicken fillet and chicken fajita, respectively. While for retail market samples, TBC mean values were 2x10, 2x10, 3x10, 3x10, 4x10 and 3x10 CFU/g in chicken mortadella, chicken frank, chicken nuggets, chicken burger, chicken fillet and chicken fajita, respectively. It was evident that most of examined chicken product samples either from processing plant or retail markets were contaminated with investigated foodborne pathogens, namely; Staphylococcus aureus, Salmonella, E. coli and Listeria monocytogenes, in addition to contamination with mold and yeasts. In conclusion, the rate of contamination of chicken products from retail markets was higher than corresponding products obtained from processing plant, which is attributed to contamination of chicken products through bad handling during transportation, storage and marketing, as well as growth of contaminants as a result of improper storage conditions including temperature and humidity.
اظهر المزيد [+] اقل [-]Normal cross-sectional anatomy and magnetic resonance imaging of pastern and coffin joints in camel النص الكامل
2019
Ibrahim, A.A.H. | Adam, Z.E. | Tawfiek, M.G.
The present study aimed to describe the normal cross sectional anatomy and magnetic resonance imaging of pastern and coffin joints in dromedary camel. This study was conducted on twelve distal limbs (fore and hind) of fresh cadavers from three adult camels of both sexes. The specimens appeared normal without orthopedic disorders. Twelve distal limbs were scanned using a 1 Tesla MRI scanner and then injected with colored latex to be sectioned into sagittal, dorsal and transverse slices. Cross anatomical sections were matched with their corresponding MR images for identification and evaluation of the clinically relevant anatomical structures that appeared with different signal intensities on MRI scans. The present study showed that all major soft tissues in pastern and coffin joints of camel were clearly depicted on MR images, however, the palmar/plantar ligaments of pastern joint and ligaments of navicular cartilage could not be identified on MR images. The annotated cross anatomical sections with the corresponding MR images could be used as a normal reference for interpretation of some clinical diseases in pastern and coffin joints of camel.
اظهر المزيد [+] اقل [-]Effect of virgin olive oil supplementation on lipid profile and oxidative status in rats النص الكامل
2019
Farahat A. A. | Sawiress F. A | Aghwider A. A.
The aim of the present study is to investigate the effect of virgin olive oil on some blood parameters in male Albino rats supplemented with normal diet. thirty male Sprague Dawley rats, (90-110 g), were used in the present study, and were divided into three groups (10 in each), 1st group (control), received basal diet and supplemented with 1ml saline. 2nd and 3rd groups received basal diet, and supplemented daily with 1ml/100 gm B.W and 2ml/100 gm B.W of virgin olive oil (VOO), respectively for 4 weeks. Blood samples were collected weekly from all rats. Serum samples was obtained for assay of lipid profile levels and hepatic lipid peroxidation (MDA) enzyme. Blood lysate was used for antioxidant enzymes activities SOD, GPx and CAT.
اظهر المزيد [+] اقل [-]The occurrence and distribution pattern of Eimeria species among domestic pigeons in Minia, Egypt النص الكامل
2019
Sahar M Gadelhaq | AsmaaHAbdelaty
Avian coccidiosis is an important parasitic disease affecting poultry and causes high economic losses in poultry industry, which acts as an important sector in the Egyptian national income. It is caused by genus Eimeria that belongs to subphylum apicomplexa. It affects domestic pigeons causing great losses, particularly in squabs. So, this study was conducted to investigate the prevalence of Eimeria species infecting domestic pigeons (Columbia livia) in Minia province. Intestines of 400 domestic pigeons collected from various poultry butcher shops as well as 103 pooled fecal samples of household pigeons were microscopically examined by the flotation technique. The recovered oocysts were morphologically identified. The overall prevalence of Eimeria species infection was 27.0% (108/400) and 72.82% (75/103) in the intestinal and pooled fecal samples respectively. Seasonally, the highest infection rate in the pooled fecal samples was in both spring and autumn (80.0%), while the lowest was in summer (56.0%). Meanwhile, the infection rate of the intestinal samples was the highest in winter (33.33%) and the lowest in autumn (20.0%). Moreover, The monthly infection rate of intestinal samples revealed that September and April had the highest rates;(55.0% and 41.62%). However, no infection rates were found in October and November, while monthly infection rate of fecal samples recorded that January and February showed 100% infection rate. Meanwhile, March and August, showed the lowest rate of infection 28.57% and 42.86% respectively. The morphological identification revealed the presence of four Eimeria species, Eimeria labbeana, E. columbarum E.columbae and E.labbeana-like, in pigeons in Minia province. Further studies are recommended to investigate the life cycle and molecular differentiation of Eimeria species infecting domestic birds.
اظهر المزيد [+] اقل [-]Correlation between Aspergillus fumigatus isolates recovered from human and broiler chickens النص الكامل
2019
Radwan.I.A | Kamel. M.F | Hamdy.D.A | Mahmoud .Z.A
A total of 225 samples were collected from suspected cases and they were 75 human samples (40 ear swabs, 29 vaginal swabs and 6 sputum samples) and 150 from broiler chickens for microbiological examination and fungal isolation, they collected from different areas in El-Fayoum and Beni-Suef governorates, from which 129 fungal isolates were recovered, 22 fungal isolates( 29.3%) were recovered from human; of which 15 isolates of ear swabs ( A.fumigatus 37.5%) while 7 (24.1%) A.fumigatus isolates were recovered from women, but there was no A.fumigatus recovered from sputum samples, as well as there were 53 A.fumigatus isolates (35.3%) recovered from broiler chicken. The antifungal activities of thymol and carvacrol oils against the recovered fungal isolates were tested using agar dilution method. Thymol and carvacrol oils completely inhibited the growth of different fungal isolates at concentrations of 1% and 0.1%. On the other hand, the concentration of 0.01% was too weak to inhibit the fungal growth, but it completely reduced the colour of the fungal colony converted it into white coloured arial mycelium. PCR assay using oligonucleotide primer that amplifying 250bp fragment in its Gene of A.fumigatus and A.niger was performed. Sequence analysis of two isolates of A.niger and A.fumigatus using its Gene was performed.
اظهر المزيد [+] اقل [-]Effect of some plant oils on reproductive activities in female albino rats النص الكامل
2019
Mabrouk, E.A. | Ali, K.M.; Nermeen | A. Helmy and Rehab | M.Reda
The present study aimed to determine the effect of adding plant oils; extra virgin olive oil (EVOO), sunflower and soybean to animal feed on serum estradiol (E2) and progesterone (P4) levels, histological structure of ovaries and in vitro maturation of oocytes (IVM). A total of 60 mature female Albino rats were used. Animals were divided equally into 5 groups; control group (received standard diet), group II (received EVOO), group III (received sunflower oil), group IV (received soybean oil) and group VI (received oil mixture which consist of sunflower and soybean oils). After 6 weeks of feeding oil addited diet, blood samples were collected from all rats throughout the different stages of estrous cycle. Sera were used for determination of serum E2 and P4 levels. Only females that were not in estrus were scarified after the last blood sample collection, ovaries were harvested for histopathological examination and for in vitro maturation. Results showed that none of oils led to ovarian changes except soybean oil and oil mixture, cause congestion of some ovarian blood vessels. It was also noted that the hormonal pattern didn’t differ significantly among different treatments within the same stage of the cycle, except for the group received oil mixture where E2 and P4 levels decreased significantly (P < 0.05) during metestrus and diestrus phases, respectively. In the treated groups, the highest significant (P < 0.05) oocyte recovery rate (RR) (5.43 ± 0.23% and 4.41± 0.13%) and maturation rate (MR) (79.17 ± 2.03% and 73.43 ± 1.97%) were attained after application of EVOO followed by sunflower oil, respectively. While the lowest values were calculated with the soybean oil and oil mixture (3.83 ± 0.13 % and 2.50 ± 0.16 %) and (68.18 ± 2.29 % and 62.50 ± 2.23 %), respectively. It could be concluded that EVOO as well as sunflower oil have a beneficial influence on ovarian functional performance, retrieval of high number of good quality oocytes and raise oocyte maturation.
اظهر المزيد [+] اقل [-]THE EFFECTS OF 4̄,4 ̄̄ -(4,5,6,7-TETRAHYDRO- [1,2,3-] SELENADIAZOLO [4,5E] PYRIDINE-4,6-DIYL) BIS(BENZENE-1,3-DIOL) ON FERTILITY, REPRODUCTIVE HORMONES AND OVARIAN HISTOLOGICAL CHANGES IN FEMALE RATS TREATED WITH DIPYRONE. النص الكامل
2019
The current study aimed to evaluate the effects of [ 4’,4” -(4,5,6,7-tetrahydro- [1,2,3-] selenadiazolo[4,5e] pyridine-4,6-diyl) bis(benzene-1,3-diol)] (T) on female fertility and reproductive hormones, in addition histopathological examination of ovaries in comparison with the effects of Metamizole or Dipyrone (Di). Four groups of mature female rats each group consist of ten healthy female rats. Three groups received T and /or Di dissolved in drinking water 2mL (DW), the forth group received 2 mL of (DW) for 20 days before mating and ten days after mating. The results indicated that there was a significant increase in the number of births of (T) group (13.70±3.34) compared to DW group (9.7±1.06). Also, significant decline in T&Di group to (6.91±0.32), with no pregnancies reported in Di treated group. The pregnancy percentage was in T&Di group basically decline to 40% compare with T and DW groups 100%. Follicle stimulating Hormone (FSH) level showed a significant elevation (p<0.05) in T group (5.19mIU/mL ±0.72), and T&Di (5.12 mIU/mL ±0.78) compared with DW (1.61mIU/mL±0.52), and Di (1.46 mIU/mL ±0.60) groups. LH concentration of T (1.88 mIU/mL ±0.48), and T&Di (1.67 mIU/mL ±0.41) groups LH values than in DW (1.75 mIU/mL ±0.67). Only in Di group (0.88 mIU/mL ±0.48) LH value reduced significantly (p<0.05) than in other test groups. T group (17.22 mIU/mL ±4.50) progesterone level; also T&Di group progesterone level (10.11 mIU/mL ±2.05) statistically important increase, while Di group there is essentially decreased (p<0.05) to (2.69 mIU/mL±0.89) compare to DW (6.31 mIU/mL ±1.41). Histopathological results showed that ovarian section of Di group disclosed large cystic corpus luteum CC.L, absence of Graafian Follicles and follicles at different stages of development. T group section showed normal Graafian follicles and different follicles in developmental stages, as well as there were several persistence corpus luteum. Ovary of T&Di female rats relieves improvement of some Graafian follicles, Cystic corpus luteum (CC.L). Furthermore, there was some of clear C.L. It can be concluded that T compound had a Good effect on the level of reproductive hormones and increase fertility in female rats. While Di long term treatment had bad effects on female fertility, by affecting reproductive hormones levels and pathological change of ovaries.
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