o investigate the effect of thyroid hormones Thyroxine (T4) and Triiodothronine (T3) on bodyweight performance in broiler hens. Methodology: The hens were kept in a controlled environment of 50-60% humidity at 31oC in first two weeks than temperature been decreased to 24oC with 24 hr light cycle per day, and were treated gently. Water and feed were provided ad libitum for the all hens. The body weight of the birds detected at the day 2nd, 4th, 6th and 8th week of the experimental period and blood sample detected at the day 14th,28th,42th and 56th day of the experimental period. The data were analyzed by the analysis of variance technique in completely randomized design, while the differences between means were tested by Duncan New Multiple Range Test as per SAS. Results: It was noted that there is a highly significant effect of age, at the level (P ≤ 0.01) on the characteristics of each of the concentration of the hormone T3 and T4 hormone levels and body weight. This study showed that there is a difference in the average concentration of "T4 & T3" for meat birds of different ages. The correlation coefficient manner, "Pearson" between the different qualities of the birds of the meat where it was noted there is a strong inverse relationship between "T4 & T3". arabic 11 English 77
Marwan M. Draid(1-2016)

Background: During the last three decades there are many viral infections emerging and re-emerge with high socio-economic and public health impacts worldwide. The Coronavirus Severe Acute Respiratory Syndrome (SARS-CoV-2) emerged in China in late December 2019. Later, on 30th Jan 2020, the World Health Organization (WHO) has constituted the COVID-19 as a public health emergency of international concern (PHEIC). Objectives: To understand the epidemiological patterns and assessing potential socio-economic impacts of the COVID-19 is critical and how to determine these impacts on social life is considered fundamental. Therefore, the present preliminary survey was conducted firstly to understand the epidemiological situation of COVID-19 in the country, and secondly to determine the socioeconomic impacts of the COVID-19 among Libyan population to build up strategies concerning socio-economic response by the technical team committee. arabic 16 English 86
Abdusalam Sharef Abdusalam Mahmoud(2-2021)

Bacteria; Firmicutes; Bacilli; Lactobacillales; Enterococcaceae; Enterococcus.
Abdulatif Asheg, Eldin Eissa,A.(9-2021)