الفهرس 
Introduction
Body fluidsOnly 14 pages are availabe for public view
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Abstract
This study was carried out during the period from January to September 2013 in the Animal Production Research Institute, Animal Production Research Institute, Agricultural Research Center, Mallawi, El Minia Governorate, and Upper Egypt. where it was used 15-20 animals of every age group and different situations physiological, it was lambs one day of age, one week of age, one month of age, two months of age, adult males 18 months, dry, pregnant and lactating ewes.
The hypothesis of this study was based on assessments of LBW, body fluids, blood metabolites (T. protein, Alb, Glb, Alb/Glb ratio, triglycerides, Glu. and urea), electrolytes (Na and K), enzymes (ALT and AST), hormones (T3, Ald. and testosterone), heat production, RR and RT, which may play an important role in diagnosis of physiological conditions that affect production and reproduction of Farafra sheep. The most revealing results obtained from the present study are as follows: The results can be summarized as follows:
I. Farafra lambs:
• Mean LBW of lambs two months of age were significantly increased (P<0.05) in summer than winter.
• Rectal temperature of the newborn lambs (one day) and one week of age was significantly higher (P<0.01) than lambs at two months age. Newborn lambs were influenced significantly (P<0.01) by season.
•Respiratory rate values of lambs were influenced significantly (P<0.01) with season and age of lambs.
•Concentrations of TP, Alb and Glb as well as Alb/Glb in plasma of lambs as affected by season and age. Concentration of TP in blood.