Effects of Astaxanthin on The Skin Color of Green Swordtail,Xyphophorus helleri

Abstract

This study aimed to analyze the effects of astaxanthin in commercial feed on growth and color intensity of green swordtail fish, Xyphophorus helleri. A total of 150 green swordtail fish (Xyphophorus helleri) had an average weight of ± 2 g per fish was used. A Completely Randomized Design (CRD) was used consisting of five treatments and three replicates. The treatments were A (0 mg/kg), B (50 mg/kg), C (100 mg/kg), D (150 mg/kg), E (200 mg/kg). Observation of color intensity had done once every 10 days for four weeks using TCF (Toca Color Finder). The result showed that the addition of astaxanthin into commercial feeds with different doses has a significant effect on the skin color intensity of green swordtail fish (Xyphophorus helleri). Hence, the concentration of 200 mg/kg Astaxanthin had the optimum skin color intensity of green swordtail fish (Xyphophorus helleri).

Aplikasi ‘Propack” Menunjang Tingkat Kelulusan Hidup Benih Ikan Nila (Oreochromis Niloticus) Pada Sistem Transportasi Tertutup

“…Diantaranya adalah parasit ikan lele (Clarias sp.) (Salsabilla et al, 2021;Suratno & Putra, 2022), dampak probiotik pada udang galah (Dachi et al, 2019), pematangan gonad ikan pedih (Tor douronensis) (Rahimi et al, 2019), embryogenesis ikan depik (Rasbora tawarensis) (Safraini et al, 2019), pakan ikan betok (Anabas testudinus), maskoki (Carrasius auratus) dan Botia (Cromobotia macracantus) Putra et al, 2016;, ikan pedang hijau (Xyphophorus helleri) (Putra et al, 2020). Sedangkan penelitian mengenai ikan nila sudah banyak dilakukan diantaranya yaitu pengaruh embrio terhadap salinitas (Fridman et al, 2012), immunologi nila (Brum et al, 2017Lebda et al, 2019;Samuel Sudhakaran et al, 2006;Zaki et al, 2012), ontogeny dan morfologi (Ismarica et al, 2022), teknologi bioflok dan hama dan penyakit nila (Šimková et al, 2019).…”

The growth performance of common carp (Cyprinus carpio) co-cultured with different vegetable plants in aquaponics system

“…Absolute length gain is the increase in length (difference end length and start length) during the rearing period. Absolute length gain can be calculated (Safriani et al, 2019a;Putra et al, 2020a): Pm = Lt -Lo Where: Pm = absolute length gain (cm) Lt = average length of fish at the end of maintenance (cm) Lo = average length of fish at the beginning of rearing (cm) Survival rate (SR) The survival rate of fish is the percentage of the number of fish that live on the end of treatment compared with the number of fish at the beginning of the treatment. Survival rate can be calculated (Putra et al, 2016;Putra et al, 2019a): SR = x 100% Where: SR = Survival rate (%); Nt = number of fish alive at the end of the study; No = Number of fish alive at the beginning of the study.…”

Variety of Tank Colours to Enhance the Colour Quality of Platyfish (Xyphophorus helleri)

“…The decline in the color quality of the sword platy fish will certainly have an impact on the selling price so that it will affect the income that will be obtained by sword plate fish businessmen, both cultivators and traders of sword plate fish themselves. In addition to the pigment content in feed (Putra et al, 2020;Said et al, 2005), the color change of ornamental fish is influenced by the environment, in this case the maintenance container (Manullang, 2018;Pratama et al, 2018).…”

“…This freshwater ornamental fish is not native to Indonesia (Sugianti et al, 2014), but comes from Central America (Parawangsa et al, 2019;Sugianti et al, 2014). In addition to having an attractive color and a unique shape because in male fish there is a long dorsal fin that resembles a sword (Irawan, 2017;Islama & Nisa, 2017;Putra et al, 2020;Putri et al, 2018), this fish is easy to maintain and bred because it is very adaptable and has good tolerance in various environmental conditions. This fish is also highly social and not aggressive so that it can coexist with other ornamental fish in the aquarium (Islama & Nisa, 2017).…”