The effect of enzymatic Sargassum extract on feed consumption, feed utlitization efficiency, and growth rate of Nile tilapia (Oreochromis niloticus)

Abstract

Tilapia have high resistance to various diseases, tolerance to low and high temperatures, efficiency in feed and fast growth, recently growing in saline water with salinity up to 20 ppt. The addition of Sargassum extract into the feed is an alternative to maintain water quality and digestibility of feed in the fish body. Sargassum sp, has a fairly complete nutritional content, it can certainly have a growth effect when added to fish feed, according to previous research. The nutritional content of Sargassum sp. including crude protein content 5.19%, ash content 36.93%, fat 1.63%. Sargassum sp. has a protein content of 7.94%, fat 0.72%, ash content 35.84%, crude fiber 4.93%, and carbohydrates 50.57%. Based on the background, it is necessary to do research on the addition of the enzymatic extract of Sargassum sp. such as neutrase and viscozyme into feed on feed conversion and growth performance of tilapia (Oreochromis niloticus). Sargassum collected from Pantai Karapyak, Pangandaran, West Java, Indonesia. Material and methods that used in research ranging from preparation of Sargassum extract, preparation of experimental animal, and experimental design. The utilization of Sargassum extract were effective to increase Feed Consumption (FC), Feed Utilization Efficiency (FE), and Absolute Growth Performance (AG) with the result of significant difference (p< 0.05) in FE and AG results. The highest result in all parameters were occurred in treatment fed by 2 g/Kg enzymatic extract of Sargassum (viscozyme).

Length-weight relationship and condition factor of Nile tilapia (Oreochromis niloticus) fed diets supplemented with guava and star gooseberry leaf extract

“…The mean K n values for both the plant extract diets and control were higher than one, indicating that the Nile tilapias were in good health condition during the experimental period. Similarly, condition factor values were more than one when Sargassum meal fed to Nile tilapia O. niloticus, 31 Mansoa alliacea hydroalcoholic extracts fed to pirarucu Arapaima gigas, 55 different maltose levels fed to Nile tilapia O. niloticus. 27…”

“…27 Previous studies have investigated the length-weight relationship and feeding habits of tilapia. 27,[30][31][32][33] Unfortunately, there is a scarcity of literature regarding relationship between guava and star gooseberry leaf extract and the condition factor. Thus, the present study aims to investigate the effect of guava and star gooseberry leaf extract-supplemented diets on the specific growth rate, length-weight relationship, and condition factor of Nile tilapia.…”

Sargassum sp. extract improve hematological profile of tilapia fish (Oreochromis niloticus)

“…extract was within the normal or healthy ranges. Healthy tilapia have erythrocyte counts ranging from 1.34-2.11Â10 6 cells/mm 3 , hematocrit 26.17-33.19%, 29 hemoglobin 6.26-11.2 g/dL, 30 and total leukocytes 1.01-1.50Â10 4 cells/mm 3 , 31 5.88-9.13Â10 4 cells/mm 3 . 32 Increased hemoglobin levels are associated with increased oxygen transport capacity and the body's defense mechanism against stress.…”

Sargassum sp. extract improve hematological profile of tilapia fish (Oreochromis niloticus)

“…extract was within the normal or healthy ranges. Healthy tilapia have erythrocyte counts ranging from 1.34-2.11×10 6 cells/mm 3 , hematocrit 26.17-33.19%, 35 hemoglobin 6.26-11.2 g/dL, 36 and total leukocytes 1.01-1.50×10 4 cells/mm 3 , 37 5.88-9.13×10 4 cells/mm 3 . 38 Increased hemoglobin levels are associated with increased oxygen transport capacity and the body's defense mechanism against stress.…”