Abstract
This study was carried out to examine the effect of Fructooligosaccharide as a source of prebiotic, and commercial dry yeast (Saccharomyces cerevisiae) as a source of probiotic and their combination in different level as a source of synbiotic. The experiment was conducted in the fish laboratory of Animal Production Department, Faculty of Agricultural Sciences of Sulaimani University. The trials lasted for three months after 21 days of adapting period 120 common carp fingerlings with an average weight of 20 ±2 gm, were used to test the effect of different levels of the Fructooligosaccharide, yeast and their combination. In T1 fish were fed a diet with 2.5 gm/kg Fructooligosaccharide, in T2, fish were fed a diet 2.5 gm/kg yeast, T3 represents the third treatment, in which fish were fed on a diet 5 gm/kg Fructooligosaccharide. While, in T4 fish were fed a diet 5 gm/kg yeast, and T5 2.5 Fructooligosaccharide: 2.5 Yeast (gm/kg), T6 was 5 Fructooligosaccharide: 5 yeast (gm/kg), T7 2.5 Fructooligosaccharide: 5 Yeast gm/kg), while T8 5 Fructooligosaccharide, 2.5 (gm/kg) Yeast. Each treatment in three replicates in which five fingerlings common carp were stocked in plastic tanks, which fed the experimental diets twice daily. Blood parameters of tested fish showed significant differences in Red blood cell count (1012 cells/l) in T5 and T7 by 1.235 and 1.260, respectively. Hemoglobin (g/dl) data were 117.000 in the fifth treatment. The mean corpuscular hemoglobin (pg/cell) was 121.400 in T2, 137.850 in T3, 121.050 in T4, and 135.300 in T6; mean corpuscular hemoglobin concentration (g/l) was 924.000, in the seventh treatment, mean corpuscular volume were (fL) 232.500 and 233.050 in T4 and T8 respectively. There were different effects of the treatment in the studied blood parameters in which the level of 2.5 g/kg in both Fructooligosaccharide and dry yeast affect significantly the Red blood cell, White blood cell and Hemoglobin.
Highlights
Introduction source of protein andB-complex vitamins; Numerous studies have demonstrated the benefit effects of probiotics for aquatic they have been used successfully as a complementary protein source in fish diet, in animals, such as the stimulation of growth to improve feed digestion, immune responses and water quality control (1)
A number of probiotic products have been researched as addition, they have been used as a supplement in animals feed to compensate for the amino acid and vitamin deficiencies of cereals, and are recommended as a substitute for soybean evidenced by their efficacy in aquaculture, oil in diets for fowl, in addition, they were beneficial bacterial inocula that were species- considered a cheaper dietary supplement as specific probiotics have become widely available to the aquaculture industry, these preparations have been refined to have more effective function as applied probiotics (1)
A prebiotic was first defined as a ‘non-digestible food ingredient that beneficially affects the host by selectively stimulating the growth and/or activity of one or a limited number of bacteria in the colon, and improves host health (5)
Summary
Introduction source of protein andB-complex vitamins; Numerous studies have demonstrated the benefit effects of probiotics for aquatic they have been used successfully as a complementary protein source in fish diet, in animals, such as the stimulation of growth to improve feed digestion, immune responses and water quality control (1). A number of probiotic products have been researched as addition, they have been used as a supplement in animals feed to compensate for the amino acid and vitamin deficiencies of cereals, and are recommended as a substitute for soybean evidenced by their efficacy in aquaculture, oil in diets for fowl, in addition, they were beneficial bacterial inocula that were species- considered a cheaper dietary supplement as specific probiotics have become widely available to the aquaculture industry, these preparations have been refined to have more effective function as applied probiotics (1). A prebiotic effect has been attributed to many food components, sometimes without due consideration to the criteria required, in particular, many food oligosaccharides and polysaccharides (including dietary fibre) have been claimed to have prebiotic activity, but not all dietary carbohydrates were prebiotics, there was, a need to establish clear criteria for classifying a food ingredient as a prebiotic
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