Effectiveness administration of cow rumen liquid at various levels of carbohydrates in feed on nutrient digestiveness and feed efficiency of milk fish (Chanos chanos Forsskal) Efforts to reduce protein in fish feed by maximizing the use of carbohydrates as an energy source must be supported by exogenous enzymes. One source of exogenous enzymes that can be used as a polysaccharide degrading agent easily obtained and wasted is rumen liquid in slaughterhouses (RPH). This study aims to determine the most effective carbohydrate level after being given rumen liquid as a source of exogenous enzymes in maximizing nutrient digestibility and feed efficiency in milkfish (Chanos chanos Forsskal). This study was designed using a Completely Randomized Design (CRD) which consisted of 4 treatments and three replications. Thus there were 12 experimental units. The treatments tested were feeds with various levels of carbohydrates (27.81%; 39.50%; 46.97%; and 56.75%) then given cow rumen liquid as a source of the enzyme at a dose of 80 mL/100 g of feed. Nutrient digestibility and feed efficiency data obtained were analyzed by analysis of variance (ANOVA) and continued with the W-Tuckey test. The results showed that feeding with various levels of carbohydrates in the feed that was first given cow rumen liquid waste had a significant effect (P<0.05) on fibre digestibility, carbohydrate digestibility, and feed efficiency of milkfish, but had no significant impact (P>0.05) on total digestibility, protein digestibility, and fat digestibility of milkfish. The most effective carbohydrate level in feed after being given cow rumen liquid which can optimize nutrient digestibility and feed efficiency of milkfish, is 46.97%. Andi MasriahAndiMasriahMuhammad Haritza LaitteMuhammadHaritzaLaitte Research article Open Access 15 Nov 2021 Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil 10.29239/j.akuatikisle.5.2.53-57 PDF (1MB) 60 views Abstract 566 views Volume 5, No. 2, P: 53-57
The growth response and hepatosomatic index of milkfish (Chanos chanos Forsskal) fed with diet various levels carbohydrates in fermented of cow rumen liquid One effort to reduce the role of protein as an energy source in feed is to maximize the use of feed carbohydrates as an energy source and engineering optimization of feed utilization can be done by adding exogenous digestive enzymes to feed. This study aims to determine the level of carbohydrates in the feed after being given cow rumen liquid which gives the best growth response and hepatosomatic index in milkfish. This study was designed using a completely randomized design (CRD) consisting of 4 treatments and 3 replications, Thus, there are 12 experimental units. The treatments were feeding with different levels of carbohydrate feed, namely 27,81; 39,50; 46,97 and 56,75% mixed with 80 mL of rumen liquid per 100 g of feed. Feed was given to juvenile milkfish measuring 7.19±0,036 g which was kept in a recirculating aquarium with a density of 15 fish/45 L of brackish water. The provision of various levels of carbohydrates in the feed had an effect (α<0.05) on relative growth and survival but had no effect (α>0.05) on the hepatosomatic index of milkfish. Statistically, the best relative growth response and survival were found in fish fed with a carbohydrate-level feed treatment of 27,81; 39,50; 46,97%. Andi MasriahAndiMasriah Research article Open Access 15 Oct 2022 Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil 10.29239/j.akuatikisle.6.2.95-99 PDF (262KB) 52 views Abstract 353 views Volume 6, No. 2, P: 95-99