Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata)
Growth retardation and decreased vivid coloration are significant issues in the ornamental fish market, particularly among cichlids. This study investigates the effects of Schizochytrium sp. microalgae supplementation on the growth and skin coloration of the Jack Dempsey cichlid (Rocio octofasciata)...
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Hasan Eleroğlu
2024-10-01
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| Series: | Turkish Journal of Agriculture: Food Science and Technology |
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| Online Access: | https://agrifoodscience.com/index.php/TURJAF/article/view/6901 |
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| author | Boran Karataş Doğukan Kaya |
| author_facet | Boran Karataş Doğukan Kaya |
| author_sort | Boran Karataş |
| collection | DOAJ |
| description | Growth retardation and decreased vivid coloration are significant issues in the ornamental fish market, particularly among cichlids. This study investigates the effects of Schizochytrium sp. microalgae supplementation on the growth and skin coloration of the Jack Dempsey cichlid (Rocio octofasciata). Three experimental groups were established: a control group (C) with no supplementation, and two microalgae-supplemented groups with 0.5% (S05) and 1% (S10). The control group was fed a commercial diet, while the S05 and S10 groups received the microalgae mixed with the commercial feed via spraying. A total of 135 Jack Dempsey fish (mean initial weight: 1.17 ± 0.14 g) were stocked into nine glass tanks (100 L each), with three replicates per group. After a 60-day feeding trial, growth indices revealed significant differences (p<0.05) between the control and algae-supplemented groups. The S10 group exhibited the highest final weight (FW) and the lowest feed conversion ratio (FCR). Additionally, the weight gain (WG) and specific growth rate (SGR) values for the S10 group were significantly higher than those of both the control and S05 groups (p<0.05). However, skin color parameters, including L* (brightness), a* (+red/-green axis), b* (+yellow/-blue axis), chroma (Ch), and hue angle (Hue), showed no statistical differences among the groups. This study demonstrates that a diet supplemented with 1% Schizochytrium sp. can enhance growth parameters and serve as a beneficial feed additive for Jack Dempsey cichlids. |
| format | Article |
| id | doaj-art-b4fa08d5296a40ceaafd8f7848691d1f |
| institution | Kabale University |
| issn | 2148-127X |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Hasan Eleroğlu |
| record_format | Article |
| series | Turkish Journal of Agriculture: Food Science and Technology |
| spelling | doaj-art-b4fa08d5296a40ceaafd8f7848691d1f2025-08-20T03:39:22ZengHasan EleroğluTurkish Journal of Agriculture: Food Science and Technology2148-127X2024-10-0112101835184010.24925/turjaf.v12i10.1835-1840.69015602Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata)Boran Karataş0https://orcid.org/0000-0003-4353-1293Doğukan Kaya1https://orcid.org/0000-0002-8832-5496Faculty of Fisheries, Department of Aquaculture, Van Yüzüncü Yıl University, Van, TürkiyeFaculty of Agriculture, Department of Animal Science, Tokat Gaziosmanpasa University, Tokat, TürkiyeGrowth retardation and decreased vivid coloration are significant issues in the ornamental fish market, particularly among cichlids. This study investigates the effects of Schizochytrium sp. microalgae supplementation on the growth and skin coloration of the Jack Dempsey cichlid (Rocio octofasciata). Three experimental groups were established: a control group (C) with no supplementation, and two microalgae-supplemented groups with 0.5% (S05) and 1% (S10). The control group was fed a commercial diet, while the S05 and S10 groups received the microalgae mixed with the commercial feed via spraying. A total of 135 Jack Dempsey fish (mean initial weight: 1.17 ± 0.14 g) were stocked into nine glass tanks (100 L each), with three replicates per group. After a 60-day feeding trial, growth indices revealed significant differences (p<0.05) between the control and algae-supplemented groups. The S10 group exhibited the highest final weight (FW) and the lowest feed conversion ratio (FCR). Additionally, the weight gain (WG) and specific growth rate (SGR) values for the S10 group were significantly higher than those of both the control and S05 groups (p<0.05). However, skin color parameters, including L* (brightness), a* (+red/-green axis), b* (+yellow/-blue axis), chroma (Ch), and hue angle (Hue), showed no statistical differences among the groups. This study demonstrates that a diet supplemented with 1% Schizochytrium sp. can enhance growth parameters and serve as a beneficial feed additive for Jack Dempsey cichlids.https://agrifoodscience.com/index.php/TURJAF/article/view/6901microalga,feed supplementornamental fishskin colorgrowth |
| spellingShingle | Boran Karataş Doğukan Kaya Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata) Turkish Journal of Agriculture: Food Science and Technology microalga, feed supplement ornamental fish skin color growth |
| title | Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata) |
| title_full | Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata) |
| title_fullStr | Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata) |
| title_full_unstemmed | Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata) |
| title_short | Effects of Dietary Microalgae Schizochytrium sp. Supplementation on Growth Performance and Skin Color in Jack Dempsey cichlid (Rocio octofasciata) |
| title_sort | effects of dietary microalgae schizochytrium sp supplementation on growth performance and skin color in jack dempsey cichlid rocio octofasciata |
| topic | microalga, feed supplement ornamental fish skin color growth |
| url | https://agrifoodscience.com/index.php/TURJAF/article/view/6901 |
| work_keys_str_mv | AT borankaratas effectsofdietarymicroalgaeschizochytriumspsupplementationongrowthperformanceandskincolorinjackdempseycichlidrociooctofasciata AT dogukankaya effectsofdietarymicroalgaeschizochytriumspsupplementationongrowthperformanceandskincolorinjackdempseycichlidrociooctofasciata |