A B S T R A C T Records on 306 Libyan Barbary lambs descended from 232 ewes sired by 25 rams were included during the period from 2004 - 2009. Analyses were used by ASREML to estimate (CO)Variance, Additive and maternal heritability and Correlations; fitting an animal model including maternal genetic for live weight traits. The objective was to evaluate the performance and previously mentioned genetic parameters in some traits of Barbary sheep in Libya. Mean birth weight (BW), weaning weight (WW) and adjusted weaning weights (adjWW) were 3.11±0.06, 21.11±0.08 and 21.62±0.02 kg respectively. Mean greasy fleece weight (GFW), staple length (SL) and number of crimps/2cm. was 1.98±0.67 kg., 9.67±1.64 cm. and 11.02±1.56 respectively. The additive heritability estimates for (BW), (WW) and (adj WW) were 0.11, 0.21 and 0.27 respectively. The maternal heritability estimates for (BW), (WW) and (adj WW) were 0.05, 0.11 and 0.25 respectively. These results indicate that selecting for improved maternal and for direct effects in Barbary sheep would generate slow genetic progress in BW trait. Direct and maternal genetic and phenotypic correlations among the lamb weights varied between 0.08 and 0.966. The Repeatability estimates for (GFW), (SL) and crimps/2cm were 0.13, 0.03 and 0.03 respectively. The positive phenotypic correlation coefficient between the wool traits of the Libyan Barbary sheep ranged from 0.61 to 0.456. The negative correlation ranged from – 0.259 to – 0.036; It was the highest positive and significant correlation between number of fine and coarse crimps/2cm was 0.456, while the highest negative and significant correlation between number of crimps of fine fiber and coarse fiber ratio was 0.259. It concluded that Low estimates of additive and maternal heritability for live weights indicated the presence of less additive genetic variance and large environmental variance. Hence, improvement through selection may be limited in growth traits if the causes of environmental variation are not removed. Only year’s records can be trusted to predict performance in the wool traits when temporary environmental impacts are minimized. arabic 15 English 89
Ahtash. Abdulkarim , Abo-Zakhar, Aiad , Fathi Abousaq(1-2021)

هدفت الدراسة الحالية إلى معرفة الأنواع المنتشرة في الساحل الغربي الليبي ، وتحديد النسبة بين الجنسين ( ذكور و إناث )، وأظهرت نتائج الدراسة وجود ثلاثة أنواع من الأخطبوطات في الساحل الغربي لمدنيتي صرمان،وصبراتة وهي: Octopus vulgaris (Cuvier,1797)و Eledonemoschata (Lamarck,798)وPteroctopustetracirr-hus (DelleChiaje,1830) و كان مدى الأطوال الكلي لها 18-78سم، 29- 46سم ،32- 71سم على التوالي،وكان النوع O.vulgaris أكثر انتشاراً،وكانت نسبة الإناث أعلى من الذكور .
هالة محمد الاسود(9-2020)

Abstract: Emissions of gases from industrial activities and even from agriculture activities and from soil as releasing of nitrogen from soils to atmosphere have been increasing steadily therefore, acid rain is the concern throughout the world. The hill field at the UCD research farm was chosen as the representative of good versatile, on which moderate to intensive farming is practised in the drier rainfall areas of Ireland. Nutrient contents in rainfall water samples were measurable, although the site of rainfall sample collection is located in the east of the country far away from the Atlantic Ocean. TDP (total dissolve phosphorus) concentrations in rainwater samples were very low. While DRP (dissolve reactive phosphorus) is the main component in some samples, the DUP (dissolve unreactive phosphorus) is dominant in others. DRP values accounted for less than 50% of dissolved phosphorus in rainfall. Sodium (Na) and Chloride (Cl) ions had the highest concentration value, because most of Irish rain originates from the Atlantic Ocean. Nitrate (NO3) had the highest value 15.2 μg·mL-1 but it associated only with mineral fertiliser spreading time. Key words: Irish rain, acid rain, nutrient content. arabic 6 English 35
Abdulfatah F Aboufayed(5-2012)