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All Journal Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture
Muhammad Zulkham Yahya
Fisheries Faculty, Pekalongan University
Agriculture, Biological Sciences & Forestry

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Prevalence of ectoparasites in betta fish (Betta splendens R.) in Pekalongan City Linayati - Linayati; Tri - Yusufi Mardiana; Ishadiyanto Ishadiyanto; Muhammad Zulkham Yahya
Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Vol 6, No 2 (2022): SAT edisi September
Publisher : Departemen Akuakultur FPIK UNDIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/sat.v6i2.13987

Abstract

ABSTRACT In Pekalongan City, Betta fish, or Siamese fighting fish is gaining popularity. However, many problems often occur in Betta fish care, such as disease attacks from parasites, including ectoparasites. This research identified the types of ectoparasites in Betta fish and determined its prevalence and degree of infection in betta fish in Pekalongan City. In this exploratory research, data were descriptively analyzed. The data were obtained from 60 samples of betta fish measuring 3.5–5.6 cm taken from betta farmers in Pekalongan City. The results of this research revealed that Tetrahymena sp and Ichthyopthirius multifilis had different prevalence levels of 46.66% for that 3.5 – 4.5 cm in length, and 43.33% of fish with 4.6-5.6 cm long, respectively 44,6 % and 40 % for Ichtyoptirius multifilis. The infection value was 6.79/fish for Tetrahymena sp (moderate), and 4.6/fish for Ichthyopthirius multifilis (low). The water quality parameters were; the temperature of 27.1 – 28.90C, DO 5.8 – 8.2 mg/l, and a pH of 6.3 – 7.3.Keywords: Ectoparasite, Betta Fish, Prevalence, Tetrahymena
The effect of adding Kaempferia galanga on different dosages of artificial feed on the growth of milk fish seed (Chanos chanos) Linayati Linayati; Tri Yusufi Mardiana; Muhammad Zulkham Yahya; Awaliyah Feni Furoidah
Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Vol 6, No 1 (2022): SAT edisi Maret
Publisher : Departemen Akuakultur FPIK UNDIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/sat.v6i1.12983

Abstract

This research was carried out from 25th October to 5th December 2021 at the Brackish and Marine Water Laboratory, Faculty of Fisheries, Pekalongan University. The purpose of this study was to determine the effect of adding kencur (Kaemferiagalanga) to feed on milkfish growth. The study used laboratory experimental methods with 4 treatments and 3 replications. The treatments used were A (0% or feed without kencur), B (2% kencur powder/100g feed), C (4% kencur powder/100g feed) and D (6% kencur powder/100g feed). The results showed that treatment B gave the highest growth yield of 8.59g, followed by treatment C 4.95g, treatment D 3.78g and the lowest was treatment A, namely 3.78g. After analyzing the variance, the results of the F count  are greater than the F table, which means that the addition of kencur to feed has an effect on the growth of milkfish. Survival rate of fish during treatment for all treatments was 100%. The water quality during the study was still within a reasonable range, namely temperature 28 -30 C, salinity 18-20 ppt, pH 7.5-7.9 and DO 4.6 - 5 ppm.Keyword: Milkfsih, Kaempferia galanga, Growth
The Effect of Avicennia marina Leaf Extract Addition To the Artificial Feed On the Growth of Litopenaeus vannamei Linayati - Linayati; Leonardus Bayu Nugroho; Tri Yusufi Mardiana; Hayati Soeprapto; Muhammad Zulkham Yahya
Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Vol 7, No 1 (2023): SAT edisi Maret
Publisher : Departemen Akuakultur FPIK UNDIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/sat.v7i1.16447

Abstract

Mangrove leaves contain abundant bioactive compounds that can optimize the growth of shrimp. This research examined the effect of adding Avicennia marina leaves to feed on the growth and FCR of Whiteleg shrimp and determined the optimal dose. Whiteleg shrimp seeds of PL-20 were used in experiments that employed RAL method with 4 treatments and 3 replications. Different doses of Avicennia marina leaf extract were used: (A) 125 ppm/500 g feed, (B) 175 ppm/500 g feed, (C) 225 ppm/500 g feed (D). The feed amounted to 3% of the total biomass per treatment every day administered in 5 meals daily for 30 days. The most optimal dose for the growth of shrimp was 225 ppm/500 g (D) with an absolute growth of 7.71 g and FCR of 1.27. However, the treatment did not affect the SR of shrimp for its value reached 100% in all treatments. The parameters of water quality were temperature of 27.4–30⁰C, DO 6.3 – 7.9, salinity 13–15 ppt, and pH 7.5 – 7.8. Keywords: Avicennia marina, Growth, Litopenaeus vannamei 
Co-Authors Awaliyah Feni Furoidah Hayati Soeprapto Ishadiyanto Ishadiyanto Leonardus Bayu Nugroho Linayati, Linayati Tri Yusufi Mardiana