The objective of the present study was to investigate the pathological changes of the acute toxicity of Malathion as organophosphorus insecticide in wild pigeons (Rock dove). Liver enzyme Alanine Transaminase (ALT) in the serum of treated pigeons was measured. The maximum tolerated dose of malathion was 3.525mg / kg B.W. However, when the maximum tolerated dose of the malathion was given to group A, two out of eight pigeons died within two hours after treatment .The insecticide caused clinical signs appeared within two hours before death, they included salivation, lacrimation , gasping, frequent defecation, drooping of wings, tremors, convulsion and recumbancy. Also the histopathological changes of the acute toxicity of present study included vacculation of nerve fibers in the spinal cord and sciatic nerve, meningitis associated with lymphocytic infiltration in the brain, myocardial fibrosis, aggregation of lymphocytes and hepatic septal fibrosis. Cortical fibrosis with inflammatory cells, regenerating renal cortical tubules and dilated cortical tubules were also seen. Compared to control values the exposure to insecticide caused increase of the ALT level in the serum for treated pigeons, and this increment was significant. In conclusion Malathion insecticide administered orally at maximum tolerated dose induced clinical signs of poisoning, pathological changes in different organs of pigeons and increased the ALT value.

To questing the severity and courses of experimental infection with Trichophyton mentogrophytes var mentogrophytes in four groups of eight rabbits, prepared HIS against the fungus was used in different routs and doses in two groups (second and third group). 0.2ml subcutaneously in 2nd group and0.1 ml interadermally in 3rd group. The shorter course of the infection was recorded in 1st group previously infected and left with out treatment with HIS, while complete healing was recoded after 5 weeks and 8 weeks in 2nd and 3rd group respectively in compared to 4th group ( control group) after 10 weeks.

Twenty pregnant goats at gestation period ranged from 100 – 130 days were used in this study and divided in to four groups according to duration of gestation period. G (A) = 100 – 110 days, G (B) = 111 – 120 days, G (C) = 121 – 130 days. All of the goats were injected with a single dose of 2.5 mg / kg B.W. Bromocriptine I.M. The fourth group also 5 goats G (D) = 120 – 130 days were used as control & given 2 ml distal water I.M. Results showed that 80% of G (A) aborted after 5.12 ± 1.74 days, 60% of G (B) aborted after 4.92 ± 1.15 days and 60% of G (C) aborted after 4.97 ± 1.15 days of injection. In addition all the aborted goats showed complications represented by retention of fetal membranes and subsequent uterine infection compared to controls which showed neither abortion nor complications.

A sero-epidemiological study was made of detection of toxoplasmosis between slaughter workers in Basrah abattoir city, southern Iraq. A total of (100) blood sample was collected with different ages between (20-50) years. The prevalence of toxoplasmosis was found between (45-48%).

Many clinical studies have reported that fish oil supplementation has beneficial effects supporting the idea that n-3 polyunsaturated fatty acids in fish oil are anti-inflammatory and immunomodulatory. Sixty one-day old broiler chicks were used in this study to determine the effect of fish oil on humoral immunity. They were divided into 3 equal groups (A, B &C) and raised under the same conditions until the end of the study at 49 day of age. The birds were vaccinated 3 times against Newcastle disease, at the 7th day they were vaccinated with Hitchner B1 and at 21st day and 35th day with LaSota type vaccine. Group A was fed fish oil supplemented diet for 14 days before the 3rd vaccination, whereas group B was fed after vaccination. Group C was served as control. Serum samples have been collected at 49th day from all groups. Antibody titer was detected by HI test; 2-mercaptoethanol-sensitive IgM and 2-mercaptoethanol-resistant IgG were also measured. Serum total protein, albumin and globulins were also estimated. Differential white blood cell count was performed to detect the number of heterophils and lymphocytes and their ratio. The results indicated that HI antibody titer was significantly ( p < 0.05 ) increased in both group A and B. Two-mercaptoethanol-sensitive IgM and 2-mercaptoethanol-resistant IgG were also showed significant ( p< 0.05 ) increase of IgG in both groups. The present study was also revealed a significant (p< 0.05) increase of serum globulins of group A and B in comparison to that of control group. Heterophils and lymphocytes percentage of both treated groups (A and B) significantly higher than that of untreated control group. These results showed that 50 gm/kg of diet fish oil accelerates antibody production and maintain proper immune function in chickens fed after vaccination against Newcastle disease with LaSota type vaccine at 35th day of age.

Combination therapy of antibiotics can be used against multi drug resistant bacteria. In vitro investigation of two antibiotics combinations regimens were used against multi drug resistant local isolates of Pseudomonas aeruginosa that isolated from chronic otitis media patients to determine the usability of combination therapy for the treatment. The first attempt of combination therapy regimen was tested for synergy between MIC of Rifampicin 4µg/ml with MICs of Tri-methoprim 50µg/ml, Cephlexin 50µg/ml, Tetracyclin 45µg/ml, Gentamicin 4µg/ml, and Erythromycin 40µg/ml, respectively in nutrient broth medium, the results yielded synergistic action in the combination therapy of Rifampicin and Erythromycin, confirmed spectrophotometrically. The second attempt of combination therapy examined against the same isolates on nutrient agar medium between MIC of Ciprofloxacin 20µg/ml and MICs of Rifampicin 4µg/ml, Gentamicin 4µg/ml, Streptomicin 4µg/ml, Tobramicin 3µg/ml respectively, the results were exhibited full synergistic bactericidal activity that took place for four combinations therapy with MIC of Ciprofloxacin in combination with the MICs of other antibiotics.

The prefect example for microorganisms which resist heavy metals is Pseudomonas aeruginosa, it has a good ability to resist and accumulate different metal ions, This article studied the resistance ability of P. aeruginosa against different concentrations of the following metals compounds : (HgCl,MgSo4,Zn2O3,MgCO3,Na2SO4,C10H20O,EDTA,NiSO4,CuCl2 and CdCl2), and describing the role of these metals to influence the production of bacterial pigments .

A retrospective study was employed to investigate the effect of dry period length on reproduction, incidence of reproductive and metabolic disorders and milk production in Holstein cows belonging to a commercial dairy. Over a 5 year period (2000- 2005), data about reproductive performance, postpartum and metabolic disorders were collected on 1914 multiparous Holstein cows. Out of the obtained data production performance were available only for 793 cows. According to the obtained data the dry period was categorized into 10 groups of different lengths. Reproductive performances including the interval to 1st service, service period, number of inseminations per conception, day’s open, calving interval and percentage of pregnant cows within 100 days in milking (DIM) were recorded as a function of dry period length. The incidence of postpartum reproductive and metabolic disorders included retained fetal membranes (RFM), endometritis, cystic ovarian disease (COD), mastitis, milk fever (MF), ketosis and abomasal displacement were recorded as a function of dry period length. Milk production was also studied in relation to dry period length. Statistical analysis of the obtained data was performed. The most important notifiable results were: cows with dry period less than 28 days showed the best reproductive performance and the highest incidence of abomasal displacement among all groups. In general, the incidence of MF and RFM were higher in short dry period cows, while the incidence of ketosis was higher in cows with long dry period length. A highly significant difference was recorded between daily milk yield of cows with dry period less than 64 days (27.23 kg) and those of cows with dry period > 64 days (25.20 kg). Finally, it is recommended to keep the dry period of 40-60 day lengths to obtain optimum reproduction, health and production of Holstein cows.

The studies were carried out on 32 rams of the ossimi breed (270 days of age). Sixteen rams (group 1) received a ration containing 0.2 ppm. Se , and 30 mg vit.E, the other 16 rams (group 2) received 0.5 ppm. Se, and 50 mg vit.E/kg feed mixture .The feeding test was conducted from 270 days until 360 days of age. During the experiment the rams were subjected to live evaluations, i.e. testes circumference, libido level, semen characteristics, as well as selenium concentration and glutathione peroxidase (GSH-Px) activity in blood serum and seminal plasma. Routine macroscopic and microscopic analyses of semen quality were accompanied by measurement of Se content and GSH-Px activity in blood and semen. The Se concentration in blood plasma, seminal fluid and spermatozoa was measured by fluorometric method, while the GSH-Px activity by method based on NADPH - coupled reaction .Comparing the results in animals of both groups , it was clear that the all were in good health conditions as ascertained by clinical examination. No significant variation was detected in body weight of animals of both groups. Significant elevation (p<0.05) in the values of semen conc., semen conc./ ejac , semen motion , sperm motility / ejac.as well as total sperms count were observed in animals of group 2 as compared to those of group 1 .

Forty five, 21-day-old balady chick were used in this experiment. Chicks were divided into three equal groups. The 1st group used as control. The 2nd and 3rd groups were supplemented with lead (Pb) acetate (1500 ppm) in drinking water but the latter group received ration containing 20% barley. Blood samples were collected from the wing vein after 1, 2 and 3 weeks. RBCs count Hb concentration and PCV were significantly decreased in group II during the experimental period. RBCs indices showed a significant decrease in MCH and MCHC in group II after 2 and 3 week of experiment. Leukogram showed heteropenia and moncytopenia. Total protein values showed significant decrease in group II due to decrease in serum albumin level after 2 and 3 week of experiment. Significant increase in activity of liver enzymes AST & ALT and serum uric acid were observed in group II after 3 weeks of experiment. Measurement of serum level of malondialhyde (MDA) revealed a significant increase in group II after 2 weeks of experiment while the total antioxidant capacity (TAO) showed significant decrease in group II after 2 and 3 weeks of experiment. Results of the lead residues in the experimental groups revealed that lead residue in muscle, liver and kidney were rise in group II compared with groups I and III.