Purpose. Qualitative study of fillets of common carp (Cyprinus carpio L.)fed with natural powder of water fern (Azollafiliculoides) and comparison with previous studies. Methodology. The proximate composition of the samples of fish fillets was done: protein content through Kjeldahl method, lipid content was determined according to AOAC (Association of Official Analytical Chemists) official method.Sensory evaluations were done by panelists. Methods for determining water holding capacity, cooking losses and biochemical analysis were standard, accepted in the world scientific community. Findings. Dissimilarities in the composition of proteins and fats were revealed. There was a significant difference in water holding capacity, cooking losses and biochemical analysis results. According to research, the powder of water fern is recommended for use in the feeding of carp, in order to improve the quality of its fillets. Originality. In recent years, a significant amount of research has focused on the use of plants or their extracts in fish nutrition, due to the presence of antioxidants in them. Water fern powder is one of the cheapest dietary supplements, which can be used in aquaculture to reduced spending on cultivation, contemporaneously improving fish health. This is due to the fact that these aquatic plants are widespread in water bodies of most warm countries and contain many important antioxidants that can positively affect the quality of fish fillets. Practical value. Based on the data obtained, a method for improving the quality of carp fillets has been developed. So, using water fern powder in its feeding, it is possible to improve the biochemical composition, increase taste, reduce losses during cooking, and also adjust the ability to retain water. Therefore, the proposed diet is also very useful for processing aquaculture products. Keywords: water fern (Azollafiliculoides), carp (Cyprinus carpio L.), fish feeding, fish fillets quality.

An experiment was conducted to find out suitable cutting types and planting dates on the success of vegetative propagation of some Eranthemum species. The treatments were four species namely Eranthemum reticulatum , E. nigrum , E.albo-marginatum and E. tricolor, three different types of stem cuttings viz. soft wood , semi-hard wood and hard wood , two planting dates viz. the second week of February and May at the Nasser , s Faculty of Agriculture Sciences under shelter house during the two seasons of 2008 and 2009 . The interaction effect between species , cutting types and planting dates showed a decisive result of 100% rooting percentage in soft wood cuttings of E. reticulatum , E. nigrum , E.albo-marginatum planted in February , while the highest rooting percentages (95.0 and 97.5 ) were achieved in the semi-hard wood cuttings of E. tricolor in February plantation. It was observed that February plantation was favorable for root formation , the maximum numbers of roots (15.33 and 14.60 ) were produced with soft wood cuttings of E. reticulatum , while , the longest roots (44.80 and 44.98 cm ) ,the highest fresh weights (10.98 and 7.93gm ) and the highest dry weights (2.38 and 2.32 gm ) were recorded in hard wood and semihard wood cuttings of E. reticulatum; E.albo-marginatum and E. reticulatum, respectively. The highest number of shoots (5.32 and 4.97 ) were observed in semi-hard wood and hard wood cuttings of E.albo-marginatum planted in May , while , the lowest numbers of shoot were (1.25 and 0.0 ) in the soft wood cuttings of E. reticulatum planted in February ,the longest shoots (25.37 and 21.49 cm ) were recorded in hard wood cuttings of E. tricolor and E. nigrum in February plantation , whereas ,the maximum number of leaves (39.20 in the first season and 36.83 in the second season ) were found in hard wood cuttings of E. tricolor and E.albo-marginatum planted in February and May, respectively.