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Articles by M. Ravikumar
Total Records ( 2 ) for M. Ravikumar
  M. Moorthy , S. Saravanan , C. Mehala , S. Ravi , M. Ravikumar , K. Viswanathan and S.C. Edwin
  Two hundred and eighty commercial layer chicks belonging to single hatch were purchased from local hatchery, wing banded, weighed and randomly allotted into seven treatment groups with four replicates of ten chicks each. The chicks were reared in cages in a gable roofed, open sided house. All the chicks were provided with uniform floor, feeder and waterer space and were reared under standard management conditions throughout the experimental period. The experimental diet was formulated according to the standards prescribed in Bureau of Indian Standards (B.I.S., 1992). The treatment groups were T1-Control; T2-0.1% aloe vera; T3-0.1% turmeric; T4-0.1% probiotic; T5-0.1% aloe vera + 0.1% turmeric; T6-0.1% aloe vera + 0.1% probiotic and T7-0.1% turmeric + 0.1% probiotic powder. There was no significant difference in feed consumption. Hen housed egg production, hen day egg production and return over feed cost differ significantly after 40 weeks of age during the experimental period. The overall mean per cent broken eggs differ significantly (p<0.05) among treatment groups but no significant difference was observed in overall mean feed conversion ratio per dozen eggs during the experimental period.
  S. Nirmalraj , M. Ravikumar , M. Mahendrakumar , B. Bharath and K. Perinbam
  The leaves of Justicia gendarussa are used in the folk medicine for the treatment of various ailments like rheumatic pain, jaundice, cephalgia, hemiplegia and eczema, etc. The leaves of the plant consists of important phytoconstituents including O-di-substituted aromatic amines, 2-aminobenzyl alcohol, O methyl ethers, friedelin, lupeol and β-sistosterol. In the present investigation, different solvent extracts of J. gendarussa leaves were screened and compared for membrane stability and antibacterial activities. Even at lower concentrations, methanolic extract of J. gendarussa shown good antibacterial and anti-inflammatory activity. At higher concentrations, methanolic extracts gave relatively more projecting antibacterial activity when compared with gentamycin. The anti-inflammatory effects of the crude drug were compared with Diclofenac as positive control. The methanolic extracts of J. gendarussa leaves possessed a broad spectrum antibacterial activity against both gram-negative and gram positive organisms like Staphylococcus aureus (MTCC 96), Staphylococcus mutans (MTCC 497), Bacillus subtilis (MTCC 441), Micrococcus luteus (MTCC 1538), gram negative organisms; Proteus vulgaris (MTCC 426), Klebsiella pneumoniae (MTCC 109), Escherichia coli (MTCC 443) and Shigella flexneri (MTCC 1457) with a zone of inhibition from 7-12 mm. The extract also showed good membrane stability to be considered to have significant anti-inflammatory action.
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