The aim of this study was to investigate the effect of graveola and extract ofeucalyptus productions on liver regeneration. 16 mature males rabbit were used. Theanimals were divided into two equal groups. The animals were anesthetized byketamine and xylazine as general anesthesia. The animals were anesthetized byatropine sulphate (1mg /Kg B.W) intramuscularly as premedication and 15 minuteslater a mixture of xylazine hydrochloride (20mg /Kg B.W) and Ketaminehydrochloride (40 mg /Kg B.W) intramuscularly. After anesthetized the rabbits andpreparation the site of operation was done in the upper part of abdomen, then Surgicalincision was done and exposure of fourth lobe of the live. The liver handling bythump forceps and the stitches was done on the lobe. Three knots were tied anddissecting scissors were used to cut the tied lobe just distal to the suture. Then theabdominal wall was approximated with a running 3-0 Polyglactin suture, and theskin was closed with a running 2-0 polyamide suture. And after hepatoctomy dividedthe animals to two equal groups; first group give the graveola orally and second groupgive the extracted eucalyptus orally too for 15 days . The clinical parameters includedtemperature, respiratory , and heart rates, were within acceptable limits postoperatively in all animals in two groups. The intra-abdominal adhesions in differentdegrees of evaluations and occurred among liver, different organs and abdominal wallthat more frequency in graviola group when compared with another treated group.Histopathological Examinations was done by taken the liver biopsies on 15th day postoperatively. The histopathological results of this study revealed that the liver regeneration similar maturity in two groups

Biocide action of Eucalyptus citriodora, Eucalyptus globulus and Eucalyptus staigeriana were studied against Boophilus microplus tick, aiming the production of an environmentally and ecologically conect and len harmpol acaricide. Essential oil emulsion of three Eucaliptus species were tested in five different concentrations against larvae and engorged female of B. microplus. Oils were submitted to gas chromatograph coupled to mass spectrometer (GC/MS) analysis looking for its composition. Citronelal is the major component of E. citriodora essential oil, being responsible for its acaricide action. The same happens with 1.8-cineole in E. globulus. In E. staigeriana, there are many substances involved in a synergic action against B. microplus. E. citriodora essential oil killed all ticks in an average concentration of 17.5% as compared to E. globulus with 15% and E. staigeriana with 12.5%. E. globulus concentrated emulsion killed all ticks in an average concentration of 9.9% and E. staigeriana in a concentration of 3.9%. Further steps will be pursued to make those essential oils to be tested under field conditions and available to the farmers, since bioacaricides has commercial appeal, allowing B. microplus control in a less aggressive way to the environment. | Realizou-se um estudo sobre a ação biocida de Eucalyptus citriodora, Eucalyptus globulus e Eucalyptus staigeriana no carrapato Boophilus microplus, buscando-se a produção de acaricidas menos agressivos ao meio ambiente. Os óleos essenciais das três espécies e os concentrados emulsionáveis de E. globulus e E. staigeriana foram testados em cinco concentrações diferentes contra larvas e fêmeas ingurgitadas de B. microplus. Os óleos foram submetidos à análise por cromatografia gasosa acoplada à espectrometria de massas (CG/EM), a fim de se investigar sua composição. O citronelal é o principal componente do óleo de E. citriodora, sendo responsável por sua ação acaricida. O mesmo ocorre com o 1,8-cineol em E. globulus. Em E. staigeriana existem várias substâncias que agem sinergicamente contra B. microplus. O óleo essencial de E. citriodora matou 100% dos carrapatos a uma concentração média de 17,5%, o de E. globulus a 15% e o de E. staigeriana a 12,5%. Os concentrados emulsionáveis de E. globulus mataram 100% dos carrapatos a uma concentração média de 9,9% e o de E. staigeriana a uma concentração de 3,9%. O desenvolvimento de produtos que possam ser testados a campo e comercializados a preços competitivos serão passos a serem seguidos. Os biocarrapaticidas têm um apelo comercial grande, permitindo controlar B. microplus de um modo menos agressivo ao meio ambiente.