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The research was held in 14th July  – 20th August 2018. Located in Brackish water Laboratory, Fisheries Faculty of Pekalongan University. The aim of this research is to find out the impact of curcuma to increase the growth and survival rate of Nile Tilapia. The treatment that be implemented was extending dosage of curcuma flour (gram)  in 1 kg of artificial  fish feed, such as followed : treatment A 0 ml ( control), B  9 g  of curcuma, C 12 g  curcuma and D 15 g curcuma. The method used was the Completely Randomized Design Method consisting of 4 treatments and 3 replications. The result which had given from the research was treatment D showed the highest growth.  The average of weight of fish which can be reached by every treatment A, B, C, D as described 3,31 g, 4,77 g, 6,8 g, and 8.04 g, The analysis of result showed that all treatments have different effects for growth of fish. The water quality during the research such as temperature between 27-290 C, pH revolve 7,1-7,3 and the salinity was 16-17 ppt which mean all parameters was supported to fish growth.

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

Penelitian ini dilaksanakan pada tanggal 1sampai 3 Desember 2021 di Laboratorium Air Payau dan Laut Fakultas Perikanan Universitas Pekalongan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pemberian tepung kunyit (Curcuma longa Linn.) pada pakan terhadap pertumbuhan dan FCR ikan kakap putih (Lates calcarifer, Bloch). Penelitian menggunakan metode eksperimen laboratorium dengan 4 perlakuan dan 3 ulangan. Perlakuan yang digunakan adalah A (pakan ditambah tepung kunyit 5 gr/kg pakan), B (pakan ditambah tepung kunyit 10 gr/kg pakan), C (pakan ditambah tepung kunyit 15 gr/kg pakan) dan D (pakan ditambah tepung kunyit 20 gr/kg pakan). Hasil penelitian menunjukkan bahwa perlakuan D memberikan hasil terbaik dengan pertumbuhan biomassa mutlak tertinggi sebesar 6,6 g dan FCR 1,4. Setelah dilakukan analisis regresi didapatkan nilai > 96%, artinya penambahan tepung kunyit pada pakan berpengaruh terhadap pertumbuhan biomassa mutlak dan FCR ikan kakap putih. Tingkat kelangsungan hidup (SR) ikan selama penelitian pada semua perlakuan adalah 100%. Kualitas air selama penelitian masih dalam kisaran yang wajar yaitu suhu 28 -30 C, salinitas 28-30 ppt dan pH 7,4-7,8.

Shrimp vannamei (Litopenaeus vannamei) is a kind of shrimp that has important economic value in Indonesia, one of the inhibiting factors in increasing shrimp production is a disease caused by bacteria vibrio sp. This disease can cause a high death. This study aims to identify and quantify the number of Vibrio sp bacteria colonies in the hepatopancreas shrimp vannamei in ponds given probiotics, carried out in Sampang Tigo Ponds, Degayu –Pekalongan and Central Fish Ponds Brackish Water Aquaculture (BBPBAP), Jepara. This study was conducted on Monday 13 November 2017 to Wednesday April 25 2018. The study was conducted on a pond with a density of 100 and 116 tail / m3. The data of the research results were analyzed descriptively with the help of graphs and tables. The results showed that the sample of each plot of bacterial colonies exceeded the threshold, that is the average number of vibrio sp bacterial colonies on hepatopancreas shrimp T2 3,96 x 10 6 CFU/ml and T3 plots 1,46 x 10 6 CFU/ml followed by shrimp morphological changes that have clinical signs of vibrio sp bacteria, the state of unbalanced water quality supports the bacterialgrowth. Keywords: Cultivation, Vannamei shrimp, Vibrio sp, Density