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UJI PENETAPAN STABILITAS RETENTION TIME Megestrole acetate DALAM ELUENT MOBILE PHASE MENGGUNAKAN HIGH PERFORMANCE LIQUID CHROMATOGRAPHY Siti Chusnul Cholifah; Mochamad Lazuardi; Dadik Rahardjo; Lilik Maslachah; Mohammad Sukmanadi; Rochmah Kurnijasanti
Journal of Basic Medical Veterinary Vol. 9 No. 1 (2020): Journal of Basic Medical Veterinary, June 2020
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/.v9i1.21093

Abstract

The aim of this research was to determine the level of stability of Megestrole acetate-retention time in storage period for six, eight and 12 hours using High Performance Liquid Chromatography (HPLC). The research method used posttest-only control group design by using three treatments and six repetitions. The three repetitions consist into six hours, eight hours and 12 hours. The data were obtained analyzed by Summery Independent T-Test with SPSS 24 for windows. The result showed six hours retention time of Megestrole acetate is stable and eight hours treatment and 12 hours treatment are not stable there is one unstable point of 12 hours treatment that indicates the substance is break down. Based on those result, it could be concluded that the storage time of Megestrole acetate in Eluent Mobile Phase began to show unstable at eight hours of storage.
HISTOPATHOLOGICAL APPEARANCE OF THYMUS ON BROILER UNDER CHRONIC HEAT STRESS Ratna Andriani; Arimbi Arimbi; Dadik Rahardjo; Hani Plumeriastuti; Djoko Legowo; Eka Pramyrtha Hestianah
Journal of Basic Medical Veterinary Vol. 8 No. 1 (2019): Journal of Basic Medical Veterinary, June 2019
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/.v8i1.19987

Abstract

The aim of this research was to know histopathological change of broiler’s thymus which exposed by chronic heat stress. The results revealed that there were negative impact on immune organ (thymus). Broiler that exposed to chronic heat stress showed significantly increased number of heterophil and apoptosis histiocytes and cell depletion. There were 20 broilers that divided into 2 groups, each group consist of 10 broiler. Control group (P0) reared at temperature 24-28oC and humidity 40-55% and Heat Stress group (P1) reared at temperature 36-40oC on the litter housing system at Experimental Animals Laboratory, Faculty of Veterinary Medicine, Universitas Airlangga. Before the treatments, broiler had been reared from day-old-chicks to 21-day-old, then continued with heat stress condition from day 22 to 42. Thymus was collected on day 42 to examine histopathological change of thymus and analyzed using Mann-Whitney Test. The results showed significant difference (P<0.05) between Control group and HS (Heat Stress) group by increased number of heterophil, apoptosis histiocytes and cell depletion.