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Kajian kinerja pertumbuhan dan kelangsungan hidup ikan kerapu macan (Ephinephelus fuscogusttatus) menggunakan pakan hewani yang berbeda Munawwar Khalil; Salamah Salamah; Zumairi Zumairi; Muliani Muliani
Acta Aquatica: Aquatic Sciences Journal Vol. 8 No. 2 (2021): Acta Aquatica: Aquatic Sciences Journal
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v8i2.4785

Abstract

The tiger grouper (Epinephelus fuscoguttatus) is an economically important fish whose fry still relies on natural catches. Several species of grouper are very potential to be cultivated because of their fast growth, efficient feed conversion, and high selling value. The purpose of this study is growth performance and survival rate tiger grouper (Epinephelus fuscoguttatus) used different live feed. The research design used in this study was a Completely Randomized Design with 3 treatments 3 replications and continued with LSD test if there were differences. The treatments given are treatment A (Snail), treatment B (Chicken Intestine), and treatment C (Caterpillar Maggot). Parameters observed were length increase, weight gain, survival, feed response, and water quality. The results of this study indicate that the highest increase was found in the treatment of C: 4,04 cm and the lowest was in treatment B: 3 cm, the highest weight gain was found in the treatment of C: 3,73 grams, and the lowest was in treatment B: 2,18 grams. The survival rate for all treatments is 100%. During this study the temperature ranged (28.6-31.8 oC), pH (6.7-8.2), DO (6.3-8.1 ppm), and salinity (23-27 ppt).Keywords: growth, live feed, survival rate, tiger grouper.
The effectiveness of ecdysteroid hormones through feed in increasing growth and reproductive performance of mangrove crab (Scylla sp) Mahdaliana Mahdaliana; Salamah Salamah; Muliani Muliani
Acta Aquatica: Aquatic Sciences Journal Vol. 9 No. 1 (2022): Acta Aquatica: Aquatic Sciences Journal
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i1.6965

Abstract

This study aims to determine the effect of feeding containing ecdysteroid hormones to increase the growth and reproduction of mangrove crabs so as to produce optimal reproduction of mangrove crabs. This research was conducted from August to October 2021 at the Hatchery and Cultivation Technology Laboratory. The method used in this study was a non-factorial completely randomized design (CRD) with 4 treatments and 3 replications, the addition of ecdysteroid hormone 5.50 ml, 7.50 ml, 9.50 ml and 0 ml. The results showed that the addition of ecdysteroid hormones to the feed significantly affected the moulting rate, weight gain, shell length and width and the survival of mud crabs. The best treatment was found in the 5.50 ml treatment with a molting rate of 16 days, weight gain of 12.09 grams, length of 1.84 cm, width of 7.33 and survival rate of 100%. The water quality during the study showed that it was still in a good range or can be tolerated by mangrove crabs, the water quality range was temperature 26.5-27 oC, pH 7.0-8.0, DO 6.3-6.8 mg, and salinity 34 - 35 ppt.Keywords: Ecdysteroids; Growth; Mangrove Crab; Moulting; Reproduction.