Abstract
As a food ingredient, turmeric curcumin increases appetite and increases the effectiveness of digestive organs function, while garlic increases fish growth. The combination of the two ingredients is believed to increase growth and survival rate of catfish. This study aimed to determine growth performance, Food Conversion Ratio (FCR) and Survival Rate (SR) of catfish seeds in high density fish farming based on biofloc, and supplemented with turmeric and garlic for feed. The research methodology was a complete randomized design, and treated with T1: turmeric and garlic given once a week; T2: turmeric and garlic were given twice a week, and T3: turmeric and garlic were given three times a week. Fish weight was recorded every week, then data were analyzed for fish growth using regression. The study was conducted in 4 weeks. The results showed that the best weight growth performance was obtained at T1 with the regression equation YT1 = −1.07 + 17.92. This equation provides predictions that fish harvesting can be carried out within 6 weeks, with the average weight of fish measured at 100 grams and FCR = 0.91 ± 0.016 and SR = 88.45 ± 8.89%.
Highlights
Catfish Clarias gariepinus is one of the most popular fish for farmers because it is easy to be cultivated in limited site and water
The growth performance in the second week showed that the increase of absolute weight of T3 were 0.91± 0.016 (T1) was 44.73 gram which just behind the weight of T2 with 44.82 gram, while T3 was only measured at 36.58 gram
The observation in the following weeks until the end of the period showed that T1 had the highest growth performance
Summary
Catfish Clarias gariepinus is one of the most popular fish for farmers because it is easy to be cultivated in limited site and water. The main problem of cultivating catfish in biofloc system under high-density cultivation is high mortality rate due to various diseases. Some researchers have suggested causes of various diseases in catfish, such as Edwardsiella ictaluri that has been observed as the cause of Enteric Septicemia of Catfish (ESC). According to [4], the bacteria transmit a disease to Clarias sp causing them to swim vertically and give slow responses to feed, experience peritonitis and hemorrhagic dermatitis.
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