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This study was conducted from February to June 2005 on 58 femal camel's, distribute between Basrah and Misaan provenances to estimation the effect of dam age and the season of lactation and vitamin C content . Fameless were distributed according to their ages into 4 groups (6-8, 9-11, 12-15, 16-18) yaers and (1-13) lactation season . Daily and monthly milk yield were calculated to investigate the effect of age and lactation season on milk yield and vitamin C content . Results showed a significant increase (P<0.05) in both daily and monthly milk yield, and amount of vitamin C in milk at ages (6-8, 9-11) years.A significant increase (P<0.05) in daily and monthly milk yield at second , 5th, and 6th lactation seasons was noticed . The study also revealed that a highly significant values (P<0.01) of vitamin C content were obtained at 5th ,6th , and 7th lactation season . Correlation cofficients between daily / monthly milk yield and amount of vitamin C content were highly significant . [ABSTRACT FROM AUTHOR]

This study was done in the animal production department-agriculture collage-basrah university which aimed to find out the effect of dexamethasone which used as feed additive on blood parameters, some body organs and their ability to induce animal growth during 40 days, 20 male rabbits were used in this study.and gived 50 microgram /kg Results of this study revealed that Dx caused a significant increased in red blood cells (RBCs), concentration of hemoglobin (Hb) and packed cell volume (PCV) and significant decrease in whit blood cells(WBC) and lymphocyte percentage also asignificant increased in neutrophiles percentage with significant changes in other differential Leukocyte percentages were noticed. Results also showed that using Dx feed additive, did not give any significant changes in Mean corpuscular volume (MCV), Mean corpuscular hemoglobin (MCH) and Mean corpuscular hemoglobin concentration (MCHC). No such changes wear noticed in these parameters due to the periods of treatments. Statistical analysis of the blood serum parameters revealed no significant impact of the Dx on total protein, whereas, Glutamic Oxaloacetic (GOT) and Glutamic Pyruvic (GPT) Transaminase enzymes, were significantly increased in their levels blood serum of treated animals as compared with control. Results of this study also showed that using the Dx as feed additives, improved significantly the weight gain in treated rabbits during first ten days, in comparison with control, but with increasing the periods of treatments, the weight gain was decreased significantly. The study also explained the effect of the Dx on the weight percentage of some organs, it was apparent that giving the Dx drug to rabbits didn't showing any significant effect on weight of heart, spleen kidneys and empty secum, but high significant increased in percentage weight of the liver and testis was noticed. However, Dx drug caused high significant decreased in the stomach, full secum and adrenal gland weights in comparison with their weight in control group. [ABSTRACT FROM AUTHOR]