Tenotomized Achilles tendon Rabbits were used to investigate the effect of lowintensity pulsed ultrasound (LPUS) to accelerate the repair of injured tendon. The medial Achilles tendons of 18 local breed male rabbits were transected of all animals without suture, and bandaging was performed to immobilization the injured limb. Nine animals were chosen randomly to receive low-intensity pulsed ultrasound, the other 9 animals served as control. pulsating ultrasound with intensities 500 mW/cm2 and frequency 2.5 MHz were given over the healing tendons for 10 minute daily, using a gel as the coupling agent between the ultrasound probe and the skin. The healing tendons were evaluated clinically, macroscopically and microscopically for three periods at 7, 14 and 21 days respectively after tenotomy, three rabbits for each period. In the ultrasound-treated group at 14 and 21 days postoperatively, the macroscopic and histological studies demonstrated that the low-intensity pulsed ultrasound enhanced the healing of tendomize Achilles tendon. The ultrasound treated group showed more mature organization at all end points of injured tendons compared

The aim of study is provide basic data about the histological features of the liver of local Iraqi ducks and to study the glycogen content in the cytoplasm of the hepatocyte. The anatomical examination showed that liver laid cranial part of the abdominal cavity caudally and ventrally to the heart and associated to the gizzard. The liver of Mallard is divided into two undivided lobes right and left lobes (the right lobe is larger than left lobe). Histological examination revealed that the liver consist of several lobules separated from each other by thin trabeculae of connective tissue extend from delicate capsule that enclosed the liver. The basic unit of the parenchyma of liver is hepatocyte which arranged in plates or cords like that radiated around the central vein and between these cords there is sinusoids lined by alayer of fenestrated endothelial cells and Kupffer's cells. In the boundary of each lobule showed portal area which consist of hepatic artery; hepatic vein and bile duct lining by cuboidal cells. The histochemical study showed formed differ size of glycogen granules in cytoplasm of hepatocytes and in some speciment the glycogen large granules arranged around the central vein because the bird in starvation period .the liver of Mallard generally is closely similar to the liver of another avian birds and vertebrates

In recent years, pyrazole and pyrimidine derivatives attracted organic chemists due to their widespread potential biological and chemotherapeutic activities. In this study, pyrimidine derivative namely 6-Chloro-2,4-diamino pyrimidine was screened for antibacterial activity against Staphylococcus aureus, Escherichia coli, Bacillus cerius, Streptococcus spp, Klebsella- spp and salmonella spp and fungicidal activity against Aspergillus multi, Aspergillus niger and Candida albicans. A compound exhibited low antibacterial and antifungal activity with the reference standard Streptomycin, Vancomycin and Nystatin respectively. The toxicity of the compound was also assayed via the determination of their LD50 value by using Dixon , s up and down method (1980). Studied compound was found to have an LD50 of 518.6 mg / kg of body weight.

This study aimed to investigate the Ameliorative effect of ethanolic extracted of silymarin from Silybum marianum seeds and to compare it’s with the commercial silymarin extract(legalon) against oral dosing of Nickel chloride effects on sperms concentration, motility ,viability, sperm abnormality and male fertility and gonadal hormones .Twenty adult male rabbits aged 5 to 6 month and weighted 1.250-1.500 kg divided into four equal groups,1 st group served as control group received 1 ml of normal saline (NaCl 0.9%),2 nd group received (1mg/100g B.W )NiCl2 orally, 3 rd group received same dose of NiCl2 plus (0.1mg/100g B.W) silymarin extract, the fourth group received same dose of NiCl2 plus (0.1mg/100g B.W) legalon for 35 days, Results showed negative effects of NiCl2 which caused significant(p≤0.05) decrease in sperm concentration ,viability, motility and fertility while sperm abnormality was significantly increase, also NiCl2 caused significant (p≤0.05) decrease in serum progesterone, estradiol and testosterone. while silymarin extract and legalon adverse the negative effects of NiCl2 and causing ameliorative effects on all the studied parameters .