Damanhour Journal of Veterinary Sciences最新文献_第6页

Monitoring of some toxic heavy metals in raw milk and effect of heating on metal load of milk 原料奶中某些有毒重金属的监测及加热对牛奶金属负荷的影响

Damanhour Journal of Veterinary Sciences Pub Date : 2021-06-20 DOI: 10.5455/DJVS.2021.79163.1038

S. Elbadry

{"title":"Monitoring of some toxic heavy metals in raw milk and effect of heating on metal load of milk","authors":"S. Elbadry","doi":"10.5455/DJVS.2021.79163.1038","DOIUrl":"https://doi.org/10.5455/DJVS.2021.79163.1038","url":null,"abstract":"Heavy metals such as lead (Pb), cadmium (Cd), and aluminum (Al) characterized by their bioaccumulation and biomagnification in the animal and human bodies causing multiple organ damage. The present study aimed at estimation of the residual content of Pb, Cd, and Al in the retailed cow’s and buffaloes’ milk collected from urban and rural areas in Sharkia Governorate, Egypt. In addition, the effects of the heat treatment of the milk in different cooking wares (made from aluminum, glass, and stainless steel) were further examined. The public health significance of the studied metals was discussed. The obtained results revealed detection of the tested metals in all examined samples at variable concentrations. In general cow’s milk had higher contents of Pb, Cd, and Al compared with the milk of buffaloes. Moreover, milk sampled from rural areas had significantly higher metal load compared with that sampled from urban areas. Heating of the milk in aluminum-made cooking wares significantly increased Al residues in the heat-treated milk with slight increase in the load of Pb, and Cd. While heating of the milk in cooking wares made from glass had slight reduction in the metal load of the milk. Therefore, it is highly recommended to use glass wares for heating of the milk instead of aluminum wares to avoid leaching of toxic metals to the heated milk.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132940527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Escherichia Coli associated with Environmental Mastitis in Sheep and Goats Farms: Probable Sources, antibiogram profile and Molecular characterization 与绵羊和山羊农场环境性乳腺炎相关的大肠杆菌:可能的来源、抗生素谱和分子表征

Damanhour Journal of Veterinary Sciences Pub Date : 2021-06-02 DOI: 10.5455/DJVS.2021.56314.1032

Warda Awad, S. Awad

{"title":"Escherichia Coli associated with Environmental Mastitis in Sheep and Goats Farms: Probable Sources, antibiogram profile and Molecular characterization","authors":"Warda Awad, S. Awad","doi":"10.5455/DJVS.2021.56314.1032","DOIUrl":"https://doi.org/10.5455/DJVS.2021.56314.1032","url":null,"abstract":"The current study was conducted to determine the role of E. coli in causing subclinical mastitis in sheep and to determine the role of bedding and water as sources of E. coli associated with environmental mastitis in sheep and goats. In addition, determination of the antibiotic sensitivity of some E. coli isolates to select the suitable antibiotics for treatment of mastitis and finally, application of PCR for detection of some virulence genes. Escherichia coli were isolated from milk, bedding and water of sheep farms at the rate of 8.67, 16 and 10%, respectively while it were isolated from milk, bedding and water of goats farms at the rate of 15.33, 24 and 10%, respectively. Moreover, Twenty E. coli isolates were serologically identified revealing the presence of serotypes; O114:H21, O111:H4 and O124. Results of antibiogram test performed for E. coli O114:H21 clarified that it was highly sensitive for Ciprofloxacin (CIP 5 µg), Enrofloxacin (5 µg) and Oxytetracycline (30 µg). E. coli isolates were tested by multiplex PCR for detection of stx1 (555 bp) and eaeA (425 bp) genes for characterization of Enteropathogenic E. coli successfully. Finally, it was concluded that, E. coli could be isolated from the examined samples of milk, bedding and water of different farms under investigation. Also, it was noticed that the isolation rates of bacteria was higher in goats farms compared to sheep farms which may be due to the defects in the hygienic conditions inside these farms.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"361 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115985593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hygienic status of raw milk adulterated with added water in El-Beheira governorate El-Beheira省掺水生奶的卫生状况

Damanhour Journal of Veterinary Sciences Pub Date : 2021-06-01 DOI: 10.5455/DJVS.2021.177524

Eman Ali, E. Saleh, Mousa M Ayoub, Sabah Ibrahim

{"title":"Hygienic status of raw milk adulterated with added water in El-Beheira governorate","authors":"Eman Ali, E. Saleh, Mousa M Ayoub, Sabah Ibrahim","doi":"10.5455/DJVS.2021.177524","DOIUrl":"https://doi.org/10.5455/DJVS.2021.177524","url":null,"abstract":"Milk is known as a full diet because it includes the essential elements needed for growth, development and body maintenance, such as proteins, fat, sugar, minerals and vitamins. However, it has been noted that milk also could be considered as a vehicle for pathogenic microorganisms. Milk likely to be intentionally/unintentionally polluted at different production, manufacturing and marketing stages. Therefore, the following study was conducted to ascertain the prevalence of zoonotic Y. enterocolitica in raw milk and to evaluate the risk effects of milk adulteration with addition of water with an emphasis on the quality of this water that might be used in the adulteration process. Raw cow milk samples were gathered randomly from different households at El-Beheira province, Egypt and subjected to some chemical and microbiological investigations. One hundred and thirty-two raw milk samples and 53 water samples were randomly collected from the same source. The results showed that the isolation rate of Y. enterocolitica from the milk samples was 8.3%. The percentage of milk fraud by water addition was 52.8%. Our findings suggested that milk contaminated and adulterated by water addition could be a potential source for many zoonoses. Also revealed high adulteration percentage of milk with addition of low hygienic quality water that represents a great health hazard in addition to poor nutritional quality.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127373860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of iron oxide nanoparticles and quercetin on rat body weight and brain iron content 氧化铁纳米颗粒和槲皮素对大鼠体重和脑铁含量的影响

Damanhour Journal of Veterinary Sciences Pub Date : 2021-01-28 DOI: 10.5455/DJVS.2020.39292.1023

Mohamed F. Dora, Nabil M. Taha, M. Lebda, Aml E. Hashem, Mohamed S Elfeky

{"title":"Effect of iron oxide nanoparticles and quercetin on rat body weight and brain iron content","authors":"Mohamed F. Dora, Nabil M. Taha, M. Lebda, Aml E. Hashem, Mohamed S Elfeky","doi":"10.5455/DJVS.2020.39292.1023","DOIUrl":"https://doi.org/10.5455/DJVS.2020.39292.1023","url":null,"abstract":"Iron oxide nanoparticles (IONPs), because of their superparamagnetic characteristics, are of considerable interest in nanotechnology related fields including biomedical, environmental, industrial applications. however, the knowledge of IONPs toxicity is very limited especially in vivo studies. Quercetin (QT); a natural flavonoid , strong antioxidant , free radical scavenger and iron chelator, has multiple therapeutic effects. The present study aimed to explore role of IONPs and QT in rat body weight and possible protective effect of QT in chelating iron preventing fenton reaction. Twenty five male adult rats were allocated equally into five groups: control, IONPs (50 mg/kg b.w i.p. 3 times/week), QT (25 mg/kg b.w. daily per os)+IONPs, QT (50 mg/kg b.w. daily per os) + IONPs, QT (100 mg/kg b.w. daily per os) + IONPs. Rat body weights were assessed weekly till end of the study. after the 30 days brain tissues were collected for measurement of iron level. IONPs induced a non-significant difference in all weeks except at day of sacrifice there was a significant increment in body weight. Compared to IONPs group, QT 25, 50 and 100 mg/kg b.w.+IONPs induced a non-significant difference in body weight in all weeks. IONPs induced a significant increment in Fe level. Compared to IONPs group, QT 25, 50 and 100 mg/kg+IONPs induced a non-significant reduction in Fe level. the results of this study showed role of IONPs and quercetin in body weight gain and suggested protective role of quercetin in chelating Fe preventing fenton reaction occurred from its increase by IONPs.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133774709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The effects of bee pollen on performance and economic efficiency of New Zealand White rabbits reared under high stocking density 蜂花粉对高密度饲养新西兰大白兔生产性能和经济效益的影响

Damanhour Journal of Veterinary Sciences Pub Date : 2020-12-25 DOI: 10.5455/DJVS.2020.156538

M. Omar, F. M. Hassan, Marwa El-Shahat

{"title":"The effects of bee pollen on performance and economic efficiency of New Zealand White rabbits reared under high stocking density","authors":"M. Omar, F. M. Hassan, Marwa El-Shahat","doi":"10.5455/DJVS.2020.156538","DOIUrl":"https://doi.org/10.5455/DJVS.2020.156538","url":null,"abstract":"This study aimed to Test the hypothesis supplementation with bee pollen (BP), as a beneficial feed additive, could alleviate the detrimental effects of overcrowding on the productive and economic efficiency in growing rabbits. A total of eighty 30 day-old male NZW rabbits (561.7±8.3 g) were randomly allocated into to four groups (each of which replicated four times), of two stocking density 8 and 24 /m2. This corresponds to 2, 6 rabbits per cage. Groups were arranged as follow: control G1 (LSD; 2 rabbits/cage and no supplementation), G2(HSD; 6 rabbits/cage and no supplementation),G3(HSD-BP250; 6 rabbits/cage and 250mg/kg(BW) BP given orally), G4(HSD- BP500; 6 rabbits/cage and 500mg/kg( BW) BP given orally). Rabbits in HSD-BP500 group had significantly higher BW, BWG, lower FI and better FCR and FE than HSD-BP250and HSD groups. Rabbits in HSD-BP500 had significantly higher dressing out % and carcass weight than HSD- BP250and HSD groups. Significant increase in values of RBCs counts, Hb, PCV, WBCs, lymphocyte, heterophils % and decreased H/L ratio were detected in HSD-BP500 group compared to HSD and HSD-BP250 groups.. while, values of MCV and MCH were not significantly (P > 0.01) different among groups. The highest values of total protein, globulin and the lowest serum urea, creatinine, cholesterol, triglycerides, ALT and AST were observed in HSD-BP500 group. The highest values of total and net revenue and the best economical efficacy were obtained in HSD-BP500 group. Conclusively, from the obtained results It can be concluded that the supplementation of bee pollen at dose of 500mg/kg BW improved the performance parameters of NZW rabbits and increased farm profitability.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121024564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of aqueous extract of Aloe vera leaves on performance, hematological and cecal histological parameters in commercial broiler chickens. 芦荟叶水提物对商品肉鸡生产性能、血液学和盲肠组织学参数的影响。

Damanhour Journal of Veterinary Sciences Pub Date : 2020-11-28 DOI: 10.5455/DJVS.2020.155079

Rasha Zayed, H. Abd-Ellatieff, W. Goda, N. El-shall, E. Bazh, H. Ellakany, A. A. Abou-Rawash

{"title":"Effects of aqueous extract of Aloe vera leaves on performance, hematological and cecal histological parameters in commercial broiler chickens.","authors":"Rasha Zayed, H. Abd-Ellatieff, W. Goda, N. El-shall, E. Bazh, H. Ellakany, A. A. Abou-Rawash","doi":"10.5455/DJVS.2020.155079","DOIUrl":"https://doi.org/10.5455/DJVS.2020.155079","url":null,"abstract":"The present study attempts to analyze the effects of Aloe vera aqueous extract on performance, hematological parameters and histological examination in broiler chicks. Fifty, one-day old, Avian 48 unsexed commercial broiler chickens were used on a completely randomized design in 2 groups each consisting of 25 broilers. The groups included the control group (basal diet) and the other group with basal diet and Aloe vera gel supplemented in the drinking water. The results obtained regarding performance of the broilers showed that Aloe vera gel group brought higher body weight gain and feed efficiency compared to the control group; however, significant difference was observed in mean body weight between the groups supplemented by Aloe vera gel and the control group (P < 0.05) and Aloe vera was better. Aloe vera resulted in the better hemoglobin concentration and red blood cells counts which were even significantly higher than the control group. The Aloe vera gel group had the largest cecal villus height and the greatest villus height to crypt depth ratio compared to the control group. Supplementation of Aloe vera extract in the water of chicks enhanced the gut health and gut development. Aloe vera, as an additive to broiler chicken feed, has a great potential for improving growth performance, hematological parameters, intestinal health, and immune system response.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126394787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Microbiological quality of luncheon meat in Beheira governorate markets and restaurants 贝海拉省市场和餐馆午餐肉的微生物质量

Damanhour Journal of Veterinary Sciences Pub Date : 2020-11-11 DOI: 10.5455/DJVS.2020.122706

A. Abu-Khadra

引用次数: 0

Prevalence of some enteric protozoa in humans in Behera Governorate 贝赫拉省某些肠道原生动物在人类中的流行情况

Damanhour Journal of Veterinary Sciences Pub Date : 2020-11-01 DOI: 10.5455/DJVS.2020.52680.1029

Mohammad A. Nossair, Mousa A. Ayoub, Diaa El-Naggar, Sabah Ibrahim

{"title":"Prevalence of some enteric protozoa in humans in Behera Governorate","authors":"Mohammad A. Nossair, Mousa A. Ayoub, Diaa El-Naggar, Sabah Ibrahim","doi":"10.5455/DJVS.2020.52680.1029","DOIUrl":"https://doi.org/10.5455/DJVS.2020.52680.1029","url":null,"abstract":"A total of 300 human stool specimens were collected and an interview using a pre-designed questionnaire was carried out to collect the following data including; sex, age, health status, residence and history of animal contact. Samples were subjected to routine parasitological examination for detection of diagnostic stages of Cryptosporidium parvum, Giardia duodenalis and Entamoeba histolytica using modified Ziehl-Neelsen staining technique, direct microscopy examination of stool suspension in physiological salt solution and microscopic examination of a direct saline (wet) mount technique. It was recorded that the incidence of C. parvum, G. duodenalis and E. histolytica was 15.3, 12 and 7%, respectively. Sex based incidence revealed that the incidence of previous enteric protozoa was higher in males than in females with statistical non-significant association between these incidences. Also, age based incidence revealed that the highest incidence of C. parvum was observed in the age group (20y - < 40y) (28.4%) followed by the age group (˂ 20 years) (14.6%) while the highest incidence of G. duodenalis was observed in the age group (˃ 60 y) (22.7%) followed by the age group (˂ 20 years) (13.5%) and finally, the highest incidence of E. histolytica was observed in the age group (˃ 60 y) (20.5%) followed by the age group (40y - ˃ 60y) (7%) with statistical significant association between these incidences. In addition, the effects of health status, residence and the type of animal contact were investigated.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127921537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hygienic Studies on Microbial Causes of Abortion in Sheep 绵羊流产微生物原因的卫生学研究

Damanhour Journal of Veterinary Sciences Pub Date : 2020-11-01 DOI: 10.5455/DJVS.2020.53126.1030

Mousa A. Ayoub, Abdelrahman Abu-Rawash, Alaa Aragan

引用次数: 1

Protective effect of Nigella sativa oil against hepatotoxicity induced by Emamectine benzoate in rats 黑草油对苯甲酸埃马咪汀所致大鼠肝毒性的保护作用

Damanhour Journal of Veterinary Sciences Pub Date : 2020-08-01 DOI: 10.21608/djvs.2020.35827.1021

Doaa A Madkour, S. Orabi, R. Korany, H. Khalifa

{"title":"Protective effect of Nigella sativa oil against hepatotoxicity induced by Emamectine benzoate in rats","authors":"Doaa A Madkour, S. Orabi, R. Korany, H. Khalifa","doi":"10.21608/djvs.2020.35827.1021","DOIUrl":"https://doi.org/10.21608/djvs.2020.35827.1021","url":null,"abstract":"Emamectin benzoate (EMB) is an avermectin insecticide used extensively in pest control on vegetable and field crops. In the current study, we evaluated the hepatotoxicity of EMB on male rats and the possible ameliorative role of Nigella Sativa oil (NSO). Rats (Thirty-five) were randomly divided into 5 equal groups. Control group the rats were treated orally with distilled water, NSO group; the rats received NSO at a dose of 3 ml kg-1 B.W orally day after day for 6 weeks by stomach tube, EMB group; the rats received EMB at a dose of 9 mg kg-1 orally day after day for 6 weeks by stomach tube; EMB+ NSO group; the rats received EMB and NSO day after day for 6 weeks; EMB then NSO group; the rats received EMB orally day after day for 4weeks alone then received NSO day after day for 2 weeks. Intoxication of rats with EMB significantly showed that EMB treatment resulted in a decrease in the body weight in compared with the control group. Regarding to the histopathological examination, EMB treatment induced coagulative necrosis and blood vessels congestion of the liver in treated rats. Furthermore, it resulted in sporadic cell necrosis in individual hepatocytes, central vein and blood sinusoids revealed dilatation and congestion. Portal areas revealed moderate fibrosis with few mononuclear inflammatory cells infiltration and hyperplasia of bile duct lining epithelium. Hemorrhage and hemosiderosis in liver parenchyma. The co-administration of NSO with EMB modulated the EMB induced alterations in body weight and liver structure.","PeriodicalId":166243,"journal":{"name":"Damanhour Journal of Veterinary Sciences","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115128955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0