Al-Qalbu: Jurnal Pendidikan, Sosial dan Sains

IDENTIFIKASI BAKTERI ESHERICHIA COLI DALAM DAGING IKAN TUNA (THUNNUS SP.) DI BALAI KARANTINA IKAN, PENGENDALIAN MUTU DAN KEAMANAN HASIL PERIKANAN (BKIPM) MATARAM

2026-04-24T05:13:07+07:00

This study aims to determine the identification technique of E. coli bacteria in tuna (Thunnus sp.) meat at the Mataram Quarantine, Quality Control and Fishery Product Safety Center (BKIPM). This research method includes laboratory research using participatory methods. Active participation is involvement in an activity carried out directly in the field (Nazir, 2011). Where this method the author follows the activities at BKIPM by observing and interviewing employees and staff, especially BKIPM laboratory technicians who are in charge of E. coli bacteria identification techniques in tuna meat. Data collection techniques consist of observation, interviews, and documentation. The results of this study indicate that the identification of E. coli bacteria in tuna meat carried out at BKIPM starts from sterilization of equipment, sample preparation, presumptive tests using LTB and EC_Broth media, confirmatory tests using L-EMB and PCA media, as well as biochemical tests including indole tests, MR/VP tests, and citrate tests. Based on laboratory test results at the BKIPM (Indonesian Food and Fisheries Agency), samples of baby tuna and filed tuna were declared negative for E. coli, making them safe for consumption.

PENDEDERAN IKAN BLACK MOLLY (POECILLIA SPHENOPS) DENGAN PEMBERIAN PAKAN TAMBAHAN CACING SUTRA DI INSTALASI BALAI BENIH IKAN LINGSAR

2026-04-24T05:13:09+07:00

This research is important to understand and study the nursery techniques of black molly fish (Poecilia sphenops) with the supplemental feeding of silkworms at the Lingsar Fish Seed Center Installation. This research is a quasi-experimental study using observation, interviews, and documentation as data collection techniques. The experiment or trial conducted was the provision of silkworms as natural food to increase the growth of black molly fish. The results of the observations indicate that the nursery technique of black molly fish (Poecilia sphenops) with the supplemental feeding of silkworms includes: Aquarium or Nursery Container Preparation, Seed Distribution, Feed Management, Growth Observation, and Water Quality Management. Feeding with additional silkworms can increase weight from 0.34 grams to 1.58 grams, and length from 1.62 centimeters to 3.90 centimeters. Survival Rate (SR) of black molly fish raised at the Lingsar Fish Seed Center (BBI Lingsar) achieved a SR of 70%. This value was obtained from an initial total of 20 fish and a total of 14 fish at the end of the maintenance period. Water quality during observations with temperatures ranging between 24 °C - 27 °C and pH ranging between 7.0 - 8.0

MENYAKITI DIRI SENDIRI PADA KALANGAN REMAJA

2026-04-24T05:13:03+07:00

Self-harm is the act of intentionally harming oneself without suicidal intent, often as a way to cope with emotional pain or stress. Commonly occurring in adolescents, this behavior can signal a deeper mental health problem and requires attention and support for recovery. This study was conducted to clearly understand the reasons why adolescents engage in self-harm. The subjects studied were three adolescents, two girls and one boy, aged 18 to 21 years. This study used a descriptive qualitative method with data collection through interviews. The results showed that self-harm often appears as an unhealthy way to cope with severe emotional stress. The main findings revealed that self-harming behavior is influenced by three main factors: personal factors, family dynamics, and social relationships. Therefore, it can be concluded that self-harm is an expression of more complex emotional problems and requires a comprehensive treatment approach. Therefore, prevention and rapid intervention, along with a better understanding of self-harming behavior, are crucial to help adolescents deal with emotional stress in a positive way

PENGARUH PENAMBAHAN PAKAN DENGAN DAPHNIA MAGNA TERHADAP TINGKAT KECERAHAN WARNA PADA PENDEDERAN IKAN KOI (CYPRINUS CARPIO VAR) DI FARM KOI KITA LOMBOK

2026-04-24T05:13:11+07:00

The purpose of this study was to describe the effect of feeding with the addition of Daphnia magna on the color brightness of nursery koi (Cyprinus carpio var.) at Kita Koi Farm, Lombok. This study was a quasi-experimental study using observation, interviews, and documentation as data collection techniques. The experiment was conducted to determine the effect of feeding with the addition of Daphnia magna on the color brightness of nursery koi (Cyprinus carpio var.) at Kita Koi Farm, Lombok. The results showed that the feeding process for nursery koi was carried out in stages according to the age and digestive capacity of the fry. In the initial nursery phase, artificial feed in the form of fine flour was used as the main feed, then combined with natural Daphnia magna as a supplementary feed. Daphnia magna was fed routinely once or twice daily to increase the feeding response and activity of the fry, and to support optimal nutrient utilization. The addition of Daphnia magna as supplementary feed had a positive effect on the color brightness of the koi fry. Fry fed Daphnia magna exhibited brighter, cleaner, and more even body color compared to fry fed only artificial feed. This is thought to be related to the natural pigments (carotenoids) in Daphnia magna, which play a crucial role in the fish's color pigmentation process.

EVEKTIFITAS PENGENDALIAN KUALITAS AIR UNTUK MENCEGAH PENYAKIT PADA IKAN KOI (CYPRINUS RUBROFUSCUS) DI FARM KOIKITA LOMBOK

2026-04-24T05:13:05+07:00

The purpose of this study was to describe the effectiveness of water quality control to prevent disease in koi at Koikita Lombok Farm. The study was conducted from October 13 to November 20, 2025, at Koikita Lombok Farm. This quasi-experimental study used observation, interviews, and documentation as data collection techniques. The experiment focused on water quality control to prevent disease in koi at Koikita Lombok Farm. Parameters measured included temperature, pH, and DO. Water quality control to prevent koi disease includes pond cleaning, filtration, installation of filters at the inlet, and control of temperature, pH, and DO. These measures have been shown to help prevent diseases such as Lernaeasis and goiter in koi fry. Koikita Lombok Farm has implemented several basic biosecurity measures, although they have not yet conducted comprehensive water parameter measurements due to limited equipment. Overall, water quality control has increased koi survival by 92%.