منصة إيفاد العلمية

انتصار احمد حسن المصلي

إرسال رسالة

التخصص: علم الاحياء / علم الوراثة

الجامعة: بنغازي

النقاط:

معامل الإنتاج البحثي

الخبرات العلمية

10 سنوات

الأبحاث المنشورة

Study on frequency of inheritance trait for earlobes of Libya sample (Salouq, Benghazi and Tokara towns ).

المجلة: مجلة جامعة السلام الدولية

سنة النشر: 2021

تاريخ النشر: 2021-09-29

It is known that, there are two types of human ear lobes. free earlobes (unattached) which is dominant trait (E-) and attached earlobes that is recessive trait.There is limited studies on the frequency of these types among libyain population. The main goal of this study was to determine the human inheritance trait for earlobes and to see whether there is an effect for gender in this inheritance trait study . A samples of 1389 (679 male and710 female) from students were involved. Results showed that the frequency of unattached type earlobe was 69.4%. and attached was 30.6 %. Both sexes in the population have higher frequency of unattached (65.5% in male and 73.1% in females) there was Statistically nonsignificant in female. ( P value lower than0.05, Chi-Square value of 23.2 ) was calculated where the null hypothesis was rejected . The states that normal distribution for Mendel are data on the basis of 3:1 ratio and this could be related to male Chi-square effect. In conclusion, the unattached earlobes is the most commonly type which is the dominant, in Libyan population. .This suggesting more studies are necessary including large sample size and observing further associated attribute to ear lobes such as blood groups that were needed.

The Comparative Between Gut Microbiota in Type 2 Patients Diabetes and Health People

المجلة: ACTA SCIENTIFIC MICROBIOLOGY

سنة النشر: 2021

تاريخ النشر: 2021-10-01

The Diabetes it is a major contributor to the development of many pathological processes including hypertension, hyperlipidemia, and cardiovascular diseases. both animal and human studies indicates that gut microbial change is associated with diabetes, but such an association with T2DM in Libyan people is not known. Therefore, the aim of present study is to recognize if there is a difference in the bacterial composition between Libyan diabetic patients and a healthy control. Also, to find whether there is a relationship between bacterial composition and diverse factors such as FBS, HbA1c, and lipid profile and body composition. Two groups of participated in this study including 20 patients with type 2 diabetes and 28 healthy control subjects were involved. The fecal microbiota structure at level of species was investigated by using conventional culture method. There was significant difference in gut bacteria between diabetic patients and healthy control. The relative abundance of B. vulgatus, and B. rodentium were significantly declined in the diabetic group compared to non-diabetic group (P = 0.008, P = 0.018) but B. vulgatus negatively and significantly correlated to level of HDL-C (P = 0.015). Moreover, the relative abundance of L. acidophilus reduced significantly (P = 0.02) and correlated positively and significantly with Fasting blood sugar (P = 0.001) and HbA1c (P = 0.016) in diabetic patients compared to the healthy control group. Our results show that T2DM is associated with compositional alterations in gut microbiota. B. vulgatus, B. rodentium and L. acidophilus B. may be possible indicators of T2DM. The interaction of specific gut microbiota with FBG, HbA1c, and HDL-C should be considered as potential interest for future studies to develop better approaches for the prevention and treatment of T2DM by modulation of gut microbiota.

Asymmetry in some morphological characters of siganus rivulatus from beach of Jalyanah -Benghazicoast: possible use of asymmetry in fish as an indicator of marine pollution

المجلة: journal of science and humanities . Faclty of Arts and Science AL-Marj

سنة النشر: 2016

تاريخ النشر: 2018-10-06

Evaluation of German Holstein Friesian cattle at Goht Al-Sultan farm, Libya I. genetics and environmental factors affecting milk yield and reproductive traits

المجلة: European Federation of Animal Science (EAAP)

سنة النشر: 2009

تاريخ النشر: 2008-08-01

In the present study, the productive and reproductive performance of German Holstein Friesian dairy cows and subsequent generations born in Libya were evaluated and factors affecting productive and reproductive performance were assessed, based on data records collected from Ghot Al-Sultan station in Benghazi / Libya. A total of 694 pregnant heifers were imported from Germany. The number of cows that had the first lactation record and included in the study was 2,094. Data were analyzed using REML to estimate the environmental and genetic factors affecting milk yield and reproductive traits.Total milk yield was generally high (8409 Liters) and attained along with reproductive efficiency (110 days open) during Dutch management, and at the expense of the reproductive traits (161 days open) during Libyan Management. Management, calving year, calving month, age at first calving, lactation period, generation, origin of sire and sire all had a significant effect on both milk yield and reproductive traits. The performance of North American, European and Libyan sires was different for milk yield and reproductive traits. Heritability estimate was 0.18 for total milk yield indicating genetic differences among sires. Genetic correlations were found to be high among milk yield traits. Genetic correlations between age at first calving, dry period and reproductive traits were positive and low whereas correlations between calving intervals and days open were also high. Genetic correlation between milk yield and reproductive traits were low and negative.

Effects of genotype-environment interaction on productive traits of Holsteins Friesian in Libya

المجلة: Journal of Animal and Poultry Production

سنة النشر: 2009

تاريخ النشر: 2009-06-01

Breeding values (BV) for some productive and reproductive traits of Holstein Friesian under Libyan conditions were estimated and compared with those estimated under, European, and North American conditions in an attempt to assess the genotype environment interaction. To investigate the effect of managerial conditions on the same traits, the heritability coefficients were also estimated under Libyan and Dutch managements. The trait's variance and covariance components and the breeding values of sires were computed using the REML method based on mixed model containing the fixed effects of month of calving, year of calving, management and generation and the random effect of sires. The lactation period and age at calving were used as covariates. Genetic correlation values of EBV for the milk yield traits were less than 1. Differences in heritability estimates due to the management system and or to environmental factors reflect Genotype x Environment interaction. Milk yield traits except dry period had a higher EBV during the Libyan than Dutch management. Reproductive traits except Age at first calving also had a higher EBV during Dutch than Libyan management. Correlations between EBV for milk yield ranged between 0.16 and 0.56 during Libyan, European and North American conditions. EBV of both North American and European sires were medium, low and negatively ranked under Libyan environment. EBV of milk yield traits showed higher variability under the Libyan environment. Sires with low EBV (> 500) revealed negative ranking under the Libyan conditions.

A study of the prevalence of coccidiosis (Eimeria spp.) in broiler and grand –parent and parent chicken farms in Ghot sultan poultry and dairy project

المجلة: المجلة الليبية العالمية Global Libyan Journal

سنة النشر: 2022

تاريخ النشر: 2022-05-08

Industrial poultry is one of the fastest growing and an important source of protein(egg and meat)to man.Coccidiosis, caused by protozoa parasites of the genus Eimeria, recognized as most common and economic problem worldwide.Study was conducted to determine the prevalence of coccidian(Eimeria spp.)in broiler and grand-parent and parent chicken farms in Ghout sultan poultry and dairy project.Data collcted were obtained by linkage to veterinary laboratory and statistics office for the period1987-2003.Data collected were analysis using SPSS and Chi- square test. P–values less than 0.05(p<0.05)was considered significant.The study revealed that the prevalence rate of coccidiosis (Eimeria spp.) were recorded 68.6%(288/420)in the broiler chicken farms as compare with grand-parent and parent farms 34.5%(145/420).A marked monthly, the highest prevalence of coccdiosis was during December (81.1%)for the broiler farms, while the lowest rate in June(48.1%).On the other hand,the highest rate of coccdiosis was recorded in January and July(48.4%),and lowest rate in the February(13.9%)for the grand-parent and parent chicken farms Seasonally, the highest prevalent of coccidiosis was showed during winter season(30.21%),and the lowest rate was recorded in the summer(18.40%)for broiler chicken farms .In the grand-parent and parent chicken farms, The highest prevalence was noticed during summer season (27.59%),while the lowest rate was recorded during winter season (22.76%).The highest infection rate were observed in farm 6(8.3%),and the lowest rate in farm4(4.8%) for broiler chickenfarm.Where the grand-parent and parent chicken farms, the highest rate was recorded in farm15(4.8%),where the lowest rate in farm20(1.4%).The results indicated,the higher infection of disease(15.5%)in 2002and 2003compared to other years,and the lowest rate in 1987(2.9%).The current study gave the proof of the endemicity of coccidiosis in this rearing system, and the deep litter system of management remains an important factor in the occurrence of the disease.For instance,suitable strategies need to be designed in order to reduce the impact of coccidiosis.In addition, further studies are needed to be conducted to identification of coccidian species for the determine of suitable prevalent and control method.