• Dr.P.NAGA JYOTHI

The development of fish culture as a commerce has accelerated above the past decades; this has resulted in conservational damages and low efficiency of various carps. The necessity for amplified disease resistance, development of aquatic organisms, and feed competence has brought about the use of probiotics in aquaculture practices. The first application of probiotics occurred in 1986, to test their ability to increase growth of hydrobiotics (organisms that live in water). Later, these probiotics were used to recover water quality and control of bacterial contaminations. Nowadays, there is documented evidence that probiotics can improve the digestibility of nutrients, upsurge tolerance to stress, and encourage reproduction. Presently, there are many commercial probiotic products prepared from various bacterial species such as Bacillus sp., Lactobacillus sp., Enterococcus sp., Carnobacterium sp., and the yeast Saccharomyces cerevisiae among others. The use of these probiotics is regulated by careful supervision recommendations. The present paper shows the recent knowledge of the use of probiotics in aquaculture, and its effect on the biochemical variables of muscle tissueof Catla catla fingerlings for a period of 30 days. The action of probiotics were significantly (P<0.01) higher in probiotics incorporated diet (E1 and E2) fed fish when compared with control deits (C1and C2). All the biochemical variables were also recorded to be better with diets E1 and E2 compared to Control diets C1 and C2. This demonstrates the efficient utilization of feed by fishes. The present study conclude that probiotics incorporated feed was the best feed concentration food for the freshwater fish C.catla.

accelerated, probiotics, digestibility, biochemical, significant.

"Effect Of Probiotic Bacteria On Biochemical Variables Of Muscle Tissue Of Catla catla Fingerlings", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.393-405, June 2019, Available :http://www.jetir.org/papers/JETIR1908A02.pdf

"Effect Of Probiotic Bacteria On Biochemical Variables Of Muscle Tissue Of Catla catla Fingerlings", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp393-405, June 2019, Available at : http://www.jetir.org/papers/JETIR1908A02.pdf