This study aimed to investigate the effect of using different levels of Atripex nummularia leaves meal (ALM) on semen quality, some blood parameters and hormonal aspects of Sina cocks under South Sinai conditions. A total number of 36 Sina cocks aged 22 weeks were used. Cocks were randomly separated into four equal groups. The 1st group was fed a basal diet as a control (0 % ALM), while, the 2nd, 3rd and 4th groups were fed diets comprising 4, 8 and 12 % ALM, respectively.
The result reviled that cocks fed dietary 12 % ALM exhibited decrease (P<0.05) in ejaculate volume, sperm concentration, total sperm output, sperm motility, total motile sperm, semen quality factor and hydrogen ion (pH) compared to control group. Moreover, cocks fed dietary 12 % ALM showed decreased (P<0.05) the values of Red blood cells, hemoglobin and mean corpuscular hemoglobin concentration concentrations as compared to control diet. However, cocks fed dietary 12 % ALM showed significantly increased mean corpuscular volume as compared to other fed dietary 0, 4 and 8 % ALM. Albumin, cholesterol, triglycerides, alanine transaminase (ALT) and aspartic transaminase (AST) levels decreased (P<0.05) when birds fed dietary 12 % ALM, however, this diminishing was (P>0.05) between all other levels of ALM compared with the control diet. Potassium, chloride and calcium levels were higher (P<0.05) for birds fed 12 % ALM compared with the control diet. However, phosphorus level was lower in the cocks fed dietary all levels of dietary ALM compared to cocks fed control diet. However, the differences was significantly (P<0.05) only at the level of 12 % ALM. Aldosterone and tri-iodothyronine hormones were decreased (P<0.05) in the cocks fed 12 % ALM than that of control group. In conclusion, under South Sinai conditions, Atriplex nummularia leaves meal could be utilized safety in Sina cocks diet up to 8 % without adverse or serious effects on the semen quality characteristics and some blood constituents.