The social media network FacebookTM was used to gather information on the occurrence and geographical distribution of dusky grouper dermatitis, a skin lesion affecting the dusky grouper, Epinephelus marginatus. Dusky grouper are common targets for spear fishermen in the Mediterranean and by monitoring spearfishing activity in Libyan waters, it was possible to document skin lesions from their entries on Facebook. Thirty-two Facebook accounts and 8 Facebook groups posting from 23 Libyan coastal cities provided a retrospective observational data set comprising a total of 382 images of dusky grouper caught by spearfishing between December 2011 and December 2015. Skin lesions were observable on 57/362 fish, for which images were of sufficient quality for analysis, giving a minimal prevalence for lesions of 15.75%. Only dusky grouper exceeding an estimated 40 cm total length exhibited lesions. The ability to collect useful data about the occurrence and geographical distribution of pathological conditions affecting wild fish using social media networks demonstrates their potential utility as a tool to support epidemiological studies and monitor the health of populations of aquatic animals. To our knowledge, this represents the first time that such an approach has been applied for assessing health in a wild population of fish. arabic 29 English 133
Jamila Rizgalla(1-2016)

The present study was carried out to estimate genetic parameters associated with direct and maternal genetic effects on birth and weaning weights in Friesian herd and to estimate the prediction of breeding values for both traits, by using bivariate repeatability animal model. The data used in the study included pedigree and weight records of calves born between 1984 and 2014. Overall means of birth weights B.wt. and weaning weight W.wt. were 37.66 ± 0.08 and 64.02 ± 0.75kg respectively; the average of suckling period (S.P.) was 61.62± 3.44 days of age. The person correlation coefficient between birth weight and weaning weight was 0.312, considering that the duration of suckling introduced as partial variable. The results showed that the year and season of birth had high significant effect on calf birth weight and weaning weight ( P
qFathi Abousa, Abdulkarim Ahtash(10-2021)

تشتهر منطقة وادي ساسسو جنوب مصراته بانتشار عدد كبير من كسارات الحجارة التي تدخل موادها في البناء والانشاءات لذا تم دراسة مدى انتشار الغبار وتأثيره على البيئة والمنطقة arabic 162 English 0
عبدالله القدافي بعيو بيت المال(1-2016)