Administration of probiotic-supplemented diet to improve the growth of carp juvenile (Cyprinus carpio L)

Abstract

This research was conducted to examine the effect of probiotic-added pellet on growth of carp juveniles. Fish having mean weight 4.29±0.16 g was purchased from fish farmers in Tatelu Village, North Minahasa Regency, North Sulawesi Province.  After adaptation for one week, the fish were fed pellet supplemented with probiotic at different concentration, including 1x10⁶, 1x10⁷, 1x10⁸, 1x10⁹ cfu.mL^-1. The control pellet was not added with probiotics but coated with 2% yellow egg as in the treatment pellets.  Fish were culture for four weeks with a feeding rate 5% /body weight/day, and feeding frequency of twice a day at 08.00 and 16.00. The weight of fish was weighed at two and four weeks after feeding. The result showed that final weight, absolute growth and average daily growth were significantly higher in fish fed probiotic pellet compared to control fish.

Keywords: probiotic, aquaculture, gut micro flora, feed efficiency, digestive enzymes