Effect of fermented rice bran flour in artificial feed on survival rate and feed conversion ratio of tilapia, Oreochromis niloticus (Linnaeus, 1758)

Abstract

Tilapia cultivation has the potential to be developed in Indonesia, especially in South Sulawesi. However, the obstacle faced in tilapia cultivation is feed; the price is relatively high because the raw materials are still imported. One of the efforts to overcome dependence on imported feed raw materials is using local raw materials, namely rice bran. This study aims to determine the best type of probiotic in hydrolyzing rice bran flour into artificial feed on survival and conversion ratio of tilapia fish feed. This research was conducted in Sidenreng Rappang Regency. The test animals used were tilapia larvae with an average size of 1.03 g. The maintenance container is a tarpaulin pond with a size of 1 m x 1 m x 1 m filled with 85 L of freshwater. The study was designed using a completely randomized design consisting of four treatments and three replications. The fermenting materials used as treatment were Bacillus sp., Lactobacillus sp., Aspergillus nigers, Yeast (Acetobacter). The test feed was given to 20 tilapia larvae stocked in each container for 60 days of rearing. The survival data and feed conversion ratio for tilapia were analyzed using analysis of variance (ANOVA). The results showed that tilapia fed fermented rice bran feed using the fermenter Lactobacillus sp. had a significant effect on survival (SR) with a value of 85% and the feed conversion ratio (FCR) of tilapia with a value of 2.23.

Evaluation of fermented rice bran to replace soybean meal in the diet of Clarias sp. fingerling

“…The sources of protein raw materials such as fish and soybean meals are increasingly limited (FAO, 2018). Therefore, alternatives are needed to reduce imported raw materials such as soybean meal in the catfish diet Rice bran is one of the local raw materials that can be used as an alternative protein source due to its good nutritional content, inexpensive price, and abundance (Yanto et al, 2018;Surianti et al, 2021). It contains 11.19% crude protein, 9.15% crude lipid, 9.17% ash and 31.04% crude fiber (Muin et al, 2013).…”

Effect of Gamal Leaves Extract (Gliricidia sepium) on Growth Rate and Feed Conversion Ratio of Bileh Fish (Rasbora sp.)

“…The FCR value is the ratio of the weight of the feed given and the resulting body weight. The greater the FCR value, the more feed needed to produce 1 kg of fish meat [16]. The lowest FCR value was found in treatment P4 with a value of 3.09 and the highest was in treatment P1 with a value of 4.18.…”

Value of Utilizing Agricultural Waste for Fish Feed (Case Study of Fish Pellet Feed)

“…The formulation of fish floating pellets in this study uses the Pearson Quadrilateral Method which aims to describe the nutritional levels of protein, fat, carbohydrates or other nutrients needed (Surianti, Hasrianti, Wahyudi, & Irwan, 2021). The following is an overview of the formulation; From the formulation that the researcher processed above, the ratio or ratio between ruminant feed and floating fish pellets was then made as follows; 3) Combined Processing of Cultivated Fish Floating Pellets Physical processing of the bran is done by heating to stabilize the bran so it doesn't go rancid during storage.…”