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Pengaruh Penambahan Vitamin C dan Pakan Kuning Telur Puyuh Terhadap Performa Larva Ikan Nila Salin (Oreochromis niloticus) Mohamad Ardiyan Syah; Ninis Triyasni; Hari Subagio; Nuhman Nuhman
Pena Akuatika : Jurnal Ilmiah Perikanan dan Kelautan Vol 23, No 1 (2024): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/penaakuatika.v23i1.3366

Abstract

Ikan nila salin (Oreochromis niloticus) merupakan ikan nila yang dibudidayakan pada perairan payau dengan memanfaatkan sifat euryhaline atau dapat mentoleransi perubahan salinitas dengan rentang yang lebar. Fase larva merupakan fase yang sangat kritis dan sangat sensitif terhadap ketersediaan makan dan faktor lingkungan. Terdapat efek dari pemberian pakan yang mengandung vitamin C dalam bentuk ascorbic acid terhadap pertumbuhan dan respon imun dalam arti daya tahan terhadap stres pada ikan nila. Pada penelitian ini bertujuan untuk mengetahui pengaruh penambahan vitamin C dengan dosis yang berbeda pada pakan kuning telur puyuh terhadap sintasan dan pertumbuhan larva ikan nila salin (Oreochromis niloticus). Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) terdiri dari 4 perlakuan, pakan kuning telur puyuh (kontrol), pakan kuning telur puyuh ditambah vitamin C 50 mg/L, pakan kuning telur puyuh ditambah vitamin C 100 mg/L, dan pakan kuning telur puyuh ditambah vitamin C  150 mg/L dengan 5 ulangan yang diberikan pada larva ikan nila salin. Analisa data dengan menggunakan uji Analysis of Varians dan uji Beda Nyata Terkecil. Hasil penelitian ini didapatkan bahwa penambahan vitamin C dengan dosis 100 mg/L menjadi perlakuan terbaik dengan hasil sintasan (74 ± 8,22%), pertumbuhan berat mutlak (0,07 ± 0,01 gram), laju pertumbuhan berat harian (4,0 ± 0,85%), dan pertumbuhan panjang mutlak (0,78 ± 0,08 cm).
Pengaruh Gaya Kepemimpinan, Lingkungan Kerja, dan Penghargaan terhadap Kinerja Karyawan: (Studi pada Karyawan Lulu Hypermarket Departement Store Cabang BSD Tangerang) Yohana Tindaon; Hari Subagio
Anggaran : Jurnal Publikasi Ekonomi dan Akuntansi Vol. 3 No. 1 (2025): Anggaran: Jurnal Publikasi Ekonomi dan Akuntansi
Publisher : Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/anggaran.v3i1.1260

Abstract

This study aims to examine the Influence of Leadership Style, Work Environment, and Rewards on Employee Performance at Lulu Hypermarket Department Store BSD Tangerang Branch. The method used is multiple linear regression analysis method using SPSS software version 22. And the technique used is Non Probability Sampling with saturated sampling type. The results of this study indicate the regression value is Y = 34.997 + 0.401 X1 -0.409 X2 +0.082 X3 + ε That Leadership Style (X1) has a significant effect on Employee Performance, This shows the importance of the role of a leader/manager in improving employee performance to achieve organizational goals. Work Environment (X2) has a negative and significant effect on Employee Performance, This shows that an unsupportive Work Environment can reduce Employee Performance. While Rewards (X3) have no effect and are not significant on Employee Performance (Y), Recognition or giving gifts is still very important to improve Employee Performance. The contribution of the three independent variables R2 is 33.3% to Employee Performance (Y) and the remaining 66.7% is influenced by other factors.
BUDIDAYA IKAN LELE DENGAN KOLAM TERPAL DI KELURAHAN KEPUTIH KECAMATAN SUKOLILO KOTA SURABAYA Sulestiani, Aniek; Aprilia, Shevick; Tri Putra, Satria Rizal; Hari Subagio; Mochamad, Arief Sofijanto
Jurnal Pengabdian Masyarakat Pesisir VOLUME 4 NOMOR 1
Publisher : Universitas Hang Tuah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jpmp.v4i1.131

Abstract

Sukolilo district faces significant problems in catfish cultivation, especially related to the use of tarpaulin ponds as a cultivation medium. Technical constraints experienced by the community include ph, temperature, and tarpaulin pond management. The community service activities of the hang tuah university surabaya faculty of engineering and marine science team have the aim of educating and empowering the community in utilizing catfish cultivation by optimizing tarpaulin materials. The method is in the form of land preparation, making ponds with tarpaulins, preparing needs stage, hatchery implementation stage observation of cultivation implementation and marketing, with training and counseling. The final result of this community service activity is that the economic potential in keputih village, sukolilo district can be raised by optimizing catfish farming activities with tarpaulins.
Pengaruh Lingkungan Kerja, Motivasi Kerja dan Kepuasan Kerja: Studi Pada Guru SMP Negeri 3 Tangerang Selatan Siti Mariam; Hari Subagio
Jurnal Manajemen Bisnis Era Digital Vol. 2 No. 3 (2025): Agustus : Jurnal Manajemen Bisnis Era Digital
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jumabedi.v2i3.782

Abstract

This study aims to examine the impact of work environment (X1), work motivation (X2), and job satisfaction (X3) on teacher performance (Y) at SMP Negeri 3 in South Tangerang City. The study employs a quantitative approach with a survey method, and data were collected through the distribution of questionnaires to 40 teachers. The analysis technique used is multiple linear regression with the assistance of SPSS software version 27 to test the impact of independent variables on the dependent variable. The results indicate that the work environment significantly affects teacher performance, with a regression coefficient of 0.534, meaning that the better the work environment, the higher the teacher's performance. Meanwhile, work motivation (X2) does not have a significant effect on teacher performance, with a low coefficient of 0.184, suggesting that motivation is not the main factor influencing teacher performance at SMP Negeri 3 in South Tangerang City. In contrast, job satisfaction (X3) has a positive and significant impact on teacher performance, with a coefficient of 0.559, indicating that higher job satisfaction leads to better performance. The regression equation obtained is Y = -12.759 + 0.534 X1 + 0.184 X2 + 0.559 X3, which reflects the influence of each factor on teacher performance. Based on these results, it can be concluded that the work environment and job satisfaction are important factors in improving teacher performance, while work motivation does not have a significant impact. Therefore, the school administration should focus more on improving the work environment and enhancing teacher job satisfaction to encourage better performance. This study provides recommendations for school managers to address these two factors in efforts to improve teacher performance.
Pengaruh Motivasi Kerja, Lingkungan Kerja, dan Disiplin Kerja terhadap Kinerja Karyawan : Studi pada Karyawan PT Wisata Titiannusantara Pelangi, Jakarta Barat Gifa Inayah; Hari Subagio
Jurnal Manajemen Bisnis Era Digital Vol. 2 No. 3 (2025): Agustus : Jurnal Manajemen Bisnis Era Digital
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jumabedi.v2i3.784

Abstract

Employee performance is a crucial factor in supporting a company's success, particularly in the tourism sector, which demands optimal human resource quality. Factors such as work motivation, work environment, and work discipline are believed to significantly influence employee performance. However, the extent to which these three factors contribute to improved employee performance in tourism companies still requires empirical research. This study aims to determine the partial effect of work motivation, work environment, and work discipline on employee performance at PT. Wisata Titiannusantara Pelangi. The study population comprised all 40 employees, with the sampling technique using the saturation method (sampling the entire population). Data analysis was performed using multiple linear regression processed using SPSS version 22. The results show that work motivation has a positive and significant effect on employee performance, meaning that the higher an employee's motivation, the better their performance. The work environment also proved to have a positive and significant effect on performance, indicating that a comfortable and supportive work environment can improve employee performance. Furthermore, work discipline has a positive and significant effect on employee performance, indicating that discipline in carrying out tasks contributes significantly to achieving optimal work results. Overall, this study confirms that motivation, work environment, and work discipline are important factors that must be considered by management in efforts to improve employee performance, especially in companies operating in the tourism sector.