scholarly journals Effect of addition of pro-enzymes and Spirulina flour on growth and color intensity of betta fish (Betta sp)

2021 ◽  
Vol 890 (1) ◽  
pp. 012025
Author(s):  
M A Fabanjo ◽  
N Abdullah
Keyword(s):  
Color Change ◽  
Economic Value ◽  
Ornamental Fish ◽  
The Body ◽  
Health Conditions ◽  
Body Color ◽  
Color Intensity ◽  
Change Rate ◽  
Weight Growth ◽  
Effective Doses

Abstract Betta fish is one of the ornamental fish that has high economic value because it has features such as the beauty of the body color, the uniqueness of the shape of the fins so that it is very attractive to ornamental fish lovers. Attractiveness value of ornamental fish can be measured from their brilliant color, shape and physical completeness, behavior, and health conditions. Color is one deciding factor that ornamental fish is in demand by consumers, so that farmers need to maintain the color of ornamental fish by providing food containing color pigments. The aim of this study was to obtain a mixture of effective doses of pro-enzyme Spirulina flour in feeding to increase growth and color intensity of betta fish. The results showed that the highest absolute weight growth was found in treatment B (5 grams) of pro-enzyme Spirulina flour 2.154 followed by treatment C 1.554 (7 grams), treatment A 0.844 (3 grams), and treatment D 0.002 (0 grams). The highest level of color change occurred in treatment A (dose of 3 grams) while the lowest color change rate was found at treatment D (0 grams).

scholarly journals Does soil color affect fish evolution? Differences in color change rate between lineages of the sailfin tetra

2020 ◽  
Vol 18 (2) ◽  
Author(s):  
Kalebe S. Pinto ◽  
Tiago H. S. Pires ◽  
Gabriel Stefanelli-Silva ◽  
Bruno S. Barros ◽  
Elio A. Borghezan ◽  
...  
Keyword(s):  
Skin Color ◽  
Color Change ◽  
Soil Types ◽  
Amazon Forest ◽  
Body Color ◽  
Change Rate ◽  
Color Changes ◽  
Physiological Constraints ◽  
Fish Evolution ◽  
Forest Streams

ABSTRACT Several organisms match their skin color to the prevalent background color, granting crypsis against predators. The rate at which body color changes occur varies among organisms as a result of physiological constraints and adaptation to variation in contrasts between objects and the environmental background. Faster darkening of body color is favored in environments that show higher amounts of contrast between common objects and the prevailing background. Soil types in Amazon forest streams (igarapés) create distinct environments with respect to the amount of contrast, a result of the amount of sand and clay, which offers different contrasts against dead leaves. Here, we investigated differences in the rates of color change among populations of the sailfin tetra (Crenuchus spilurus) that represent lineages that live in regions of different soil types. Populations inserted into blackwaters (sandy soil) showed higher rates of color darkening in response to exposure to a dark environment composed by dead leaves. We propose that natural selection stemming from predation can favor faster color change rate in environments where there is higher variability of contrasts between leaf litter and soil, which is common in most blackwater streams.

scholarly journals PENINGKATAN PERTUMBUHAN DAN KECERAHAN WARNA IKAN MAS KOI CYPRINUS CARPIO DENGAN PEMANFAATAN TEPUNG WORTEL DALAM PAKAN

2021 ◽  
Vol 3 (2) ◽  
pp. 46-50
Author(s):  
Sutia Budi ◽  
Mardiana Mardiana
Keyword(s):  
Cyprinus Carpio ◽  
Ornamental Fish ◽  
The Body ◽  
Carotenoid Pigments ◽  
Body Color ◽  
Koi Carp ◽  
Color Changes ◽  
Carp Cyprinus Carpio ◽  
Absolute Growth ◽  
Different Doses

Ikan Hias jenis ikan Mas Koi Cyprinus carpio memiliki daya tarik pada warna yang dimunculkan dari tubuhnya. Tepung Wortel memiliki pigmen karotenoid, asam askorbat, flavenoid, phenol asit dan lutein. Penelitian ini bertujuan untuk mengevaluasi pertumbuhan dan kecerahan warna ikan Mas Koi Cyprinus carpio melalui pemberian tepung wortel dalam pakan dengan dosis yang berbeda. Parameter peubah yang diukur berupa perubahan warna dengan menggunakan scoring melalui metode modifikasi TCF dan pertumbuhan mutlak. Wadah  penelitian menggunakan toples transparan 7 L, dengan volume air sebanyak 5 L per wadah.  Hewan uji yang digunakan adalah ikan Mas dengan kepadatan 1 ekor per wadah.  Perlakuan yang di uji adalah berbagai dosis tepung wortel dalam pakan, yakni A = 0 % , B = 5 %, C = 10 % dan D = 15 %, dengan masing – masing 3 kali ulangan. Hasil penelitian menunjukkan bahwa perlakuan berbagai konsentrasi tepung wortel dalam pakan memberikan pengaruh terhadap pertumuhan dan kecerahan warna tubuh ikan Mas Koi.. Ornamental fish, the type of Koi carp, Cyprinus carpio, has an attraction to the color that emerges from its body. Carrot flour has carotenoid pigments, ascorbic acid, flavenoid, phenol acetate and lutein. This study aimed to evaluate the growth and color brightness of the Koi carp Cyprinus carpio through the application of carrot flour in the feed with different doses. Parameters measured in the form of color changes using scoring through the modified TCF method and absolute growth. The research container used a 7 L transparent jar, with a volume of 5 L of water per container. The test animals used were goldfish with a density of 1 fish per container. The treatments tested were various doses of carrot flour in the feed, namely A = 0%, B = 5%, C = 10% and D = 15%, with 3 replicates each. The results showed that the treatment of various concentrations of carrot flour in the feed had an effect on the growth and brightness of the body color of Mas Koi fish..

scholarly journals Pemanfaatan Lahan Sempit Sebagai Tempat Budidaya Ikan Cupang di Mertasinga, Cilacap

2019 ◽  
Vol 3 (2) ◽  
pp. 113
Author(s):  
Oto Prasadi
Keyword(s):  
Life Cycle ◽  
Economic Value ◽  
Ornamental Fish ◽  
Betta Splendens ◽  
Body Color ◽  
Short Life ◽  
Existing Problems ◽  
Selection Of ◽  
Fin Shape

Betta splendens is an ornamental fish of economic value, this fish has the excellence color, fight instinct, and short life cycle. Betta fish into the category is easy to cultivate (narrow field). Betta splendens are one of 70 species of betta fish (Betta sp.) experienced breeding. The process begin several characters from body color, size and fin shape for ornamental and fight purposes. This potential can be implemented and developed to new breeders in members of breeder cilacap community, so as to improve the quality and quantity of betta fish. Existing problems i.e., how to optimize the unproductive narrow land more productive narrow land for the cultivation of betta fish and addition knowledges of betta cultivation, especially new breeders. This program 2 groups of citizens and 1 group of students. The solution provided, i.e., discussion about prospect of betta cultivation and focused training starting from selection of broodstock, process of breeding, egg and larvae breeding and feeding. The results from this activity is the use of land for the cultivation and the success of the spawning process new individuals both by citizens and students with entrepreneurship spirit.Sains

scholarly journals SARS-CoV-2: is there neuroinvasion?

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Conor McQuaid ◽  
Molly Brady ◽  
Rashid Deane
Keyword(s):  
Respiratory Distress ◽  
Vascular Dysfunction ◽  
Multiorgan Failure ◽  
Neurological Complications ◽  
Wide Distribution ◽  
The Body ◽  
Health Conditions ◽  
Main Body ◽  
Beneficial Effects ◽  
The Brain

Abstract Background SARS-CoV-2, a coronavirus (CoV), is known to cause acute respiratory distress syndrome, and a number of non-respiratory complications, particularly in older male patients with prior health conditions, such as obesity, diabetes and hypertension. These prior health conditions are associated with vascular dysfunction, and the CoV disease 2019 (COVID-19) complications include multiorgan failure and neurological problems. While the main route of entry into the body is inhalation, this virus has been found in many tissues, including the choroid plexus and meningeal vessels, and in neurons and CSF. Main body We reviewed SARS-CoV-2/COVID-19, ACE2 distribution and beneficial effects, the CNS vascular barriers, possible mechanisms by which the virus enters the brain, outlined prior health conditions (obesity, hypertension and diabetes), neurological COVID-19 manifestation and the aging cerebrovascualture. The overall aim is to provide the general reader with a breadth of information on this type of virus and the wide distribution of its main receptor so as to better understand the significance of neurological complications, uniqueness of the brain, and the pre-existing medical conditions that affect brain. The main issue is that there is no sound evidence for large flux of SARS-CoV-2 into brain, at present, compared to its invasion of the inhalation pathways. Conclusions While SARS-CoV-2 is detected in brains from severely infected patients, it is unclear on how it gets there. There is no sound evidence of SARS-CoV-2 flux into brain to significantly contribute to the overall outcomes once the respiratory system is invaded by the virus. The consensus, based on the normal route of infection and presence of SARS-CoV-2 in severely infected patients, is that the olfactory mucosa is a possible route into brain. Studies are needed to demonstrate flux of SARS-CoV-2 into brain, and its replication in the parenchyma to demonstrate neuroinvasion. It is possible that the neurological manifestations of COVID-19 are a consequence of mainly cardio-respiratory distress and multiorgan failure. Understanding potential SARS-CoV-2 neuroinvasion pathways could help to better define the non-respiratory neurological manifestation of COVID-19.

scholarly journals Beneficial Role of Carica papaya Extracts and Phytochemicals on Oxidative Stress and Related Diseases: A Mini Review

Biology ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 287
Author(s):  
Yew Rong Kong ◽  
Yong Xin Jong ◽  
Manisha Balakrishnan ◽  
Zhui Ken Bok ◽  
Janice Kwan Kah Weng ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Signaling Pathways ◽  
Chronic Diseases ◽  
Carica Papaya ◽  
Antioxidant Properties ◽  
Natural Antioxidants ◽  
The Body ◽  
Health Conditions ◽  
Chemical Components ◽  
Impaired Wound Healing

Oxidative stress is a result of disruption in the balance between antioxidants and pro-oxidants in which subsequently impacting on redox signaling, causing cell and tissue damages. It leads to a range of medical conditions including inflammation, skin aging, impaired wound healing, chronic diseases and cancers but these conditions can be managed properly with the aid of antioxidants. This review features various studies to provide an overview on how Carica papaya help counteract oxidative stress via various mechanisms of action closely related to its antioxidant properties and eventually improving the management of various oxidative stress-related health conditions. Carica papaya is a topical plant species discovered to contain high amounts of natural antioxidants that can usually be found in their leaves, fruits and seeds. It contains various chemical compounds demonstrate significant antioxidant properties including caffeic acid, myricetin, rutin, quercetin, α-tocopherol, papain, benzyl isothiocyanate (BiTC), and kaempferol. Therefore, it can counteract pro-oxidants via a number of signaling pathways that either promote the expression of antioxidant enzymes or reduce ROS production. These signaling pathways activate the antioxidant defense mechanisms that protect the body against both intrinsic and extrinsic oxidative stress. To conclude, Carica papaya can be incorporated into medications or supplements to help manage the health conditions driven by oxidative stress and further studies are needed to investigate the potential of its chemical components to manage various chronic diseases.

EFFECTIVENESS Daphnia sp. WHICH IS PELET FEEDING TO THE GROWTH OF SEMAH’S LARVAE Tor douronensis (Valenciennes, 1842)

2020 ◽  
Vol 5 (2) ◽  
pp. 23-27
Author(s):  
Dina Tri Madya Ningsih ◽  
Siti Hudaidah ◽  
Mas Tri Djoko Sunarno
Keyword(s):  
Survival Rate ◽  
Fish Larvae ◽  
Weight Growth ◽  
Randomized Design ◽  
Test Parameters ◽  
Absolute Growth ◽  
Absolute Length ◽  
Effective Doses ◽  
Endemic Fish ◽  
Completely Randomized Design

The semah fish (Tor douronensis) is an Indonesian endemic fish that has a long growth, which takes 4 years to grow from larvae to broodstock. This study aims know of Daphnia sp. pelet fed with effective doses to increase the growth of semah’s fish larvae. The study was conducted from March 25 to April 13, 2020 at the Instalasi Riset Plasma Nutfah, Cijeruk, Bogor, West Java. The experimental design used completely randomized design (CRD) 4 treatments and 3 replications, namely treatment A (Daphnia sp.+pelet feed 0 gr/ L), treatment B (Daphnia sp.+ pelet feed 1 gr / L), treatment C (Daphnia sp. + pelet feed 2 gr / L), treatment D (Daphnia sp. + pelet feed 3 gr / L). The larvae of 9 days in age were randomly stocked into 12 aquariums measuring 60x30x35 cm with a density of 50 fish/aquarium and fed in the form of Daphnia sp. enriched pelet feed according to the treatment of 50 ind/larvae by giving 3 times a day which is maintained for 20 days. The test parameters measured are absolute growth in length and weight, survival rate, and water quality. Based on the results of statistical analysis (Anova), the results showed that the treatment D gave the highest influence on the growth of semah’s fish larvae (P <0.05) with an absolute weight growth value of 85,3 mg, absolute length growth of 10.6 mm, and survival rate 99.33%.

scholarly journals KARAKTERISTIK BIOLOGI KUDA LAUT (Hippocampus spp) SEBAGAI PENGETAHUAN DASAR BUDIDAYANYA

OSEANA ◽  
2020 ◽  
Vol 45 (1) ◽  
pp. 70-81
Author(s):  
Dwi Eny Djoko Setyono
Keyword(s):  
Wild Population ◽  
Economic Value ◽  
Fishing Effort ◽  
Culture Technique ◽  
Ornamental Fish ◽  
Biological Characteristics ◽  
Basic Knowledge ◽  
Natural Growth ◽  
Steady Condition ◽  
Natural Medicine

Many species of marine organisms live in Indonesian waters have a potential for aquaculture (fishes, crustaceans, mollusc, echinoderm, and algae). They are cultured for food resources, the basis for cosmetic and natural medicine, and also as ornamental fish for marine aquarium. Seahorse (Syngnathidae: Hippocampus) is a marine fish which has high ecological and economic value. Fishing pressure of wild seahorse increased significantly when buyers offering an attractive price for the catch. High levels of fishing effort keep the wild stocks of seahorses well below the level that could be supported by natural growth and recruitment. Aquaculture for seahorses is very important to support sustainable production and to maintain the wild population in steady condition. Culture technique for seahorses has been developed in some countries, including Indonesia. However, seahorse aquaculture in Indonesia has not been achieved as expected due to the limited understanding of some biological characteristics. This manuscript deliberates some biological characteristics that useful as basic knowledge for seahorse aquaculture.

scholarly journals Administration of Probiotic sanolife Mic-S on Biological Performance of Vanamei Shrimp (Litopenaeus vannamei) PL 10

2021 ◽  
Vol 3 (8) ◽  
pp. 42-57
Author(s):  
Hasim Hasim ◽  
Nadia Baidi ◽  
Syamsuddin Syamsuddin ◽  
Rully Tuiyo
Keyword(s):  
Feed Efficiency ◽  
Economic Value ◽  
Feed Conversion ◽  
Shrimp Culture ◽  
Growth And Survival ◽  
Crude Fiber Content ◽  
Weight Growth ◽  
Randomized Design ◽  
Biological Performance ◽  
Different Doses

Vannamei shrimp is a fishery commodity that has important economic value for Indonesia. This is indicated by the increasing number and value of exports of this commodity. One of the efforts to encourage the production of vaname shrimp is through the use of probiotics. sanolife-MIC is a probiotic widely used in shrimp culture. The aim of the study was to analyze the feed profile and biological performance of Vaname PL 10 shrimp fed pellets with the Sanolife MIC-S probiotic capsule at different doses. The research method used is an experimental method using a completely randomized design (CRD) with four treatments (A: probiotic 0 gr/kg feed; B: probiotic 10 gr/kg feed; C: probiotic 12 gr/kg feed; D: probiotic 14 g/kg feed) and three replicates. What was tested in the study were probiotic profile tests, growth, feed efficiency and feed conversion. The data obtained were analyzed using ANOVA. The results showed that the feed profile that was encapsulated using sanolife MIC-S, the protein value, moisture content and ash content for the feed were shown by treatment B. The best fat content was treatment C. The best crude fiber content was treatment D. Weight growth rate, ratio The best feed conversion and feed efficiency was shown by treatment B, while the length growth and survival was indicated by treatment C.

scholarly journals Scuticociliatosis caused by Uronema sp. in ten different ornamental aquarium reef fish in Brazil

2020 ◽  
Vol 29 (1) ◽  
Author(s):  
Pedro Henrique Magalhães Cardoso ◽  
Luisa Zanolli Moreno ◽  
Andrea Micke Moreno ◽  
Simone de Carvalho Balian ◽  
Carolina Helena de Oliveira ◽  
...  
Keyword(s):  
Reef Fish ◽  
Inflammatory Process ◽  
Ornamental Fish ◽  
The Body ◽  
Economic Losses ◽  
Histopathological Analysis ◽  
Vacuolar Degeneration ◽  
Diseased Fish ◽  
Ulcerative Lesions ◽  
Severity Of The Disease

Abstract Scuticociliatosis, caused by an opportunistic ciliate protozoan, is responsible for significant economic losses in marine ornamental fish. This study reports the occurrence of Uronema spp., parasitizing ten species of marine reef fish at an ornamental fish wholesaler: Blue green damselfish (Chromis viridis), Vanderbilt’s Chromis (Chromis vanderbilti), Pennant coralfish (Heniochus acuminatus), Threespot angelfish (Apolemichthys trimaculatus), Goldspotted angelfish (Apolemichthys xanthopunctatus), Sea goldie (Pseudanthias squamipinnis), Orchid dottyback (Pseudochromis fridmani), Threadfin butterflyfish (Chaetodon auriga), Vagabond butterflyfish (Chaetodon vagabundus), and Bluecheek butterflyfish (Chaetodon semilarvatus). Diseased fish showed disorders such as hemorrhages and ulcerative lesions on the body surface. Histopathological analysis of the muscle, liver, gut, kidney, spleen, gills, and stomach revealed hemorrhages and degeneration of muscle fiber, vacuolar degeneration of hepatocyte, inflammatory process and granuloma in the liver, atrophy of intestinal villi, inflammatory process and granuloma in the kidney, melanomacrophage centers, as well as inflammatory process in the spleen, epithelial cells hyperplasia and granuloma formation in the gills, and vacuolar degeneration and eosinophils in the stomach. Due to the severity of the disease, it is necessary to implement biosecurity measures with rapid and accurate diagnosis to minimize the risk of economic losses caused by Uronema spp.

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