scholarly journals KERAGAAN BIOREPRODUKSI TIGA GENERASI IKAN TAMBAKAN (Helostoma temminckii Cuvier, 1829)

2021 ◽  
Vol 16 (1) ◽  
pp. 1
Author(s):  
Wahyulia Cahyanti ◽  
Jojo Subagja ◽  
Kusdiarti Kusdiarti ◽  
Deni Irawan ◽  
Otong Zenal Arifin
Keyword(s):  
Body Weight ◽  
Fish Species ◽  
Maturity Index ◽  
Next Generation ◽  
Farmed Fish ◽  
Gonad Maturity ◽  
Freshwater Aquaculture ◽  
Cultured Fish ◽  
Fish Weight ◽  
Reproductive Characters

Ikan tambakan merupakan ikan lokal yang potensial menjadi ikan budidaya. Salah satu proses penting dalam budidaya adalah aspek reproduksi. Penelitian untuk mengetahui karakteristik bioreproduksi tiga generasi ikan tambakan hasil kegiatan domes‘tikasi di Balai Riset Perikanan Budidaya Air Tawar dan Penyuluhan Perikanan, Bogor. Pengujian dilakukan untuk mengetahui posisi gonad, fekunditas, derajat pembuahan, dan derajat penetasan ikan tambakan generasi yang berbeda. Hasil yang diperoleh menunjukkan posisi gonad vertikal mengarah ke tulang belakang, di bagian ujung melengkung ke arah depan dan gonad berada di belakang urogenital. Fekunditas telur/gram bobot ikan yang dihasilkan tidak berbeda antar generasi dengan jumlah berkisar antara 76 ± 13 sampai 83 ± 14 butir. Persentase telur terbuahi dan telur menetas antar generasi juga tidak berbeda, masing-masing berkisar antara antara 70,6 ± 16,05 sampai 92,9 ± 10,88%; dan 51,3 ± 16,64 sampai 74,3 ± 10,32%. Jumlah larva yang dihasilkan juga tidak berbeda nyata antar generasi, berurutan dari yang kecil ke besar G-0 (38,7 ± 10,72 butir/g bobot ikan), G-1 (45,3 ± 5,20 butir/g bobot ikan), dan G-2 (55,7 ± 7,75 butir/g bobot ikan). Program domestikasi ikan tambakan tidak mempengaruhi karakter reproduksi ikan antar generasi. Keragaman karakter reproduksi antar generasi masih tinggi. Pembentukan generasi selanjutnya perlu dipertahankan, sehingga dapat digunakan sebagai ikan budidaya baru.Kissing gourami is an Indonesian local fish species that has the potential to be developed as a farmed fish. However, the current domestication stage of the fish still requires further information regarding its bio reproduction. The research on determining the bioreproductive characteristics of three generations of kissing gourami has been carried out at the Research Institute of Freshwater Aquaculture and Fisheries Extensions, Bogor. This research aimed to determine the gonad position, gonad maturity index, and fecundity between the kissing gourami generations. The results showed that the gonads were positioned vertically towards the backbone, curved ends towards the front and located behind the urogenital. The fecundity of produced eggs/gram body weight of fish did not differ between generations and ranged between 76 ± 13–83 ± 14 eggs. The percentages of fertilized eggs and hatched eggs between generations did not differ and ranged between 70.6 ± 16.05–92.9 ± 10.88% and 51.3 ± 16.64–74.3 ± 10.32%, respectively. The number of produced larvae was also not significantly different between generations where G-0 has the lowest number (38.7 ± 10.72 eggs/g fish weight), followed by G-1 (45.3 ± 5.20 eggs/g fish weight) and G-2 has the highest number of produced larvae (55.7 ± 7.75 eggs/g fish weight). The aquaculture domestication program does not affect the reproductive character of fish between generations. The diversity of reproductive characters between generations is still high. The formation of the next generation needs to be maintained, so that it can be used as a new cultured fish.

scholarly journals Animal Protein Sources as a Substitute for Fishmeal in Aquaculture Diets: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 11 (9) ◽  
pp. 3854
Author(s):  
Rendani Luthada-Raswiswi ◽  
Samson Mukaratirwa ◽  
Gordon O’Brien
Keyword(s):  
Fish Species ◽  
Positive Impact ◽  
Random Effect ◽  
Random Effect Model ◽  
Animal Protein ◽  
Feed Conversion ◽  
Farmed Fish ◽  
Protein Sources ◽  
Fish Feeds ◽  
By Products

Fishmeal is the main source of dietary protein for most commercially farmed fish species. However, fishmeal prices have been raised even further because of competition with domestic animals, shortage in world fishmeal supply, and increased demand. Increased fishmeal prices have contributed to the quest for alternatives necessary to replace fishmeal as a global research priority. A literature search was conducted using these terms on Google Scholar and EBSCOhost; fishmeal replacement in fish feeds, fishmeal alternatives in fish feeds, animal protein sources in aquaculture, insects in fish feeds, terrestrial by-products, and fishery by-products. To calculate the variation between experiments, a random effect model was used. Results indicated that different fish species, sizes, and inclusion levels were used in the various studies and showed that the use of insects, terrestrial by-products, and fishery by-products has some limitations. Despite these drawbacks, the use of animal protein sources as a replacement for fishmeal in fish diets has had a positive impact on the feed conversion ratio, variable growth rate, final weight, and survival rate of different types of fish species of different size groups. Findings also showed that some animal by-products had not been assessed as a protein source in aquaculture or animal feeds, and future studies are recommended.

scholarly journals A description of mercury in fishes from the Madeira River Basin, Amazon, Brazil

2008 ◽  
Vol 38 (3) ◽  
pp. 431-438 ◽  
Author(s):  
Wanderley Rodrigues Bastos ◽  
Mauro de Freitas Rebelo ◽  
Márlon de Freitas Fonseca ◽  
Ronaldo de Almeida ◽  
Olaf Malm
Keyword(s):  
Body Weight ◽  
River Basin ◽  
Fish Species ◽  
Temporal Trends ◽  
Migratory Fish ◽  
Madeira River ◽  
Interspecies Variability ◽  
Total Hg ◽  
Madeira River Basin ◽  
Hg Accumulation

Over the last 20 years several projects carried on the Madeira River basin in the Amazon produced a great amount data on total Hg concentration in different fish species. In this paper we discuss temporal trends in Hg contamination and its relation to body weight in some of those fishes, showing that even within similar groups, such as carnivorous and non-migratory fish, the interspecies variability in Hg accumulation is considerable.

scholarly journals Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)

2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Fernanda De Mello ◽  
Daruzi Felippe ◽  
Leandro C. Godoy ◽  
Nívia Lothhammer ◽  
Luis R. J. Guerreiro ◽  
...  
Keyword(s):  
Body Weight ◽  
Fish Species ◽  
White Muscle ◽  
Fiber Diameter ◽  
Muscle Growth ◽  
Weak Correlation ◽  
Morphological Pattern ◽  
Large Size ◽  
Large Fiber ◽  
Different Diameters

ABSTRACT This study aimed to evaluate muscle organization in tambaqui in order to describe the muscle growth process. We analyzed the morphometric pattern of fibers from white muscle of young-adults (300 days) by smaller diameter. The organization of white muscle exhibited a typical morphological pattern found in other fish species. Heavier animals showed higher frequency of larger diameter fibers (>50 μm ) and smaller animals had higher frequency of smaller diameter fibers (<20 μm ) (P =0.005). However, both animals showed the same frequency of intermediate diameter fibers (20-50 μm ). Body weight showed a positive correlation with muscle diameter fiber (r=0.45), being 20-50 μm the diameters that contributed the most to animal weight (P <0.0001). A weak correlation between fiber diameter and animal sex was observed (r=0.2). Females showed higher frequency of large fiber diameters (>50 μm ) than males. However, there was no difference between body weight and sex (P =0.8). Our results suggest that muscle growth is by hypertrophy and hyperplasia due to a mosaic appearance from different diameters fibers, which is characteristic of large size fish species.

scholarly journals Prevalence of Anisakis Larvae in Different Fish Species in Southern Albania: Five-Year Monitoring (2016–2020)

2021 ◽  
Vol 11 (23) ◽  
pp. 11528
Author(s):  
Enkeleda Ozuni ◽  
Ani Vodica ◽  
Marta Castrica ◽  
Gabriele Brecchia ◽  
Giulio Curone ◽  
...  
Keyword(s):  
Fish Species ◽  
Coastal Area ◽  
Sparus Aurata ◽  
Dicentrarchus Labrax ◽  
Health Impact ◽  
Coelomic Cavity ◽  
Farmed Fish ◽  
Risk Area ◽  
High Risk Area ◽  
Negative Results

Anisakidae are nematodes that commonly parasitize in the coelomic cavity and viscera of several fish species. They can be found in flesh, which is why they have an important economic and public health impact. The aim of the current work was to assess the presence and prevalence of Anisakis larvae in fish species caught in the coastal area of the Karaburun Peninsula in Vlora Bay (Albania). A total of 856 of wild teleosts and 219 specimens of farmed fish were collected over a 5-year period (from 2016 to 2020). The results showed that out of a total of 1075 analyzed samples, 361 (33.58%) were parasitized with L3 larvae. In particular, only Solea vulgaris returned negative results, while Sparus aurata, Dicentrarchus labrax, and Sardinella aurita showed the lowest prevalence (4.55%, 9.17%, and 10.53%, respectively) and mean abundance (0.84, 1.19, and 0.92, respectively). Conversely, Scomber japonicus and Scomber scombrus showed the highest prevalence (74.07% and 68.00%, respectively) and mean abundance (188.24 and 249.82, respectively). The data suggest that the coastal area of the Karaburun Peninsula (southern Albania) may be a high-risk area for zoonotic diseases, and the consumption of raw or undercooked fish caught in the Vlora district could result in the acquisition of human anisakiasis. For these reasons, it is necessary to improve the surveillance plan.

scholarly journals The Role of Inferent Hormones on Gonad Maturity Index and Growth of Ambon Betok Fish (Chrysiptera cyanea)

2020 ◽  
Vol 13 (2) ◽  
pp. 160
Author(s):  
Melani Andi ◽  
Muhammad Irfan ◽  
Juharni Juharni
Keyword(s):  
Fish Farming ◽  
Maturity Index ◽  
Fish Reproduction ◽  
Gonad Maturity ◽  
Growth And Survival ◽  
Living Things ◽  
Reproduction Process ◽  
Growth And Reproduction

One type of marine ornamental fish that can be developed through cultivation is betok Ambon fish. Cultivation of this fish is quite profitable, and easy to maintain. To maintain the sustainability and sustainability of Betok Ambon fish farming, one way to take is to understand and know the growth and reproduction aspects of this type of fish through the provision of inferent hormones appropriately. Review article This aims to reveal the role of the inferent hormone on the aspects of reproduction and growth of Betok Ambon fish. Reproduction is the reproduction process in living things including Betok Ambon fish. The number of eggs produced by Betok Ambon fish varies between 900 and 3,500. Inferent hormone is one type of reproductive hormone that functions to spur and accelerate the level of gonad maturity in animals including fish. The determination of the inferent hormone dosage is based on the determination of the inferent dose in fish, generally around 10 mg - 80 mg or about 0.1 ml - 0.8 ml. Generally, fish that are given inferent hormone at a dose of 40-60 mg / l can increase the gonad maturity index by 25%, in betok Ambon fish by 30%. Inferent hormone doses around 20-40 mg can increase the growth and survival of ambon betok fish.

scholarly journals Use of anaesthetic agents in farmed fish

2017 ◽  
Vol 56 (2) ◽  
pp. 130
Author(s):  
H. TSANTILAS (Η. ΤΣΑΝΤΗΛΑΣ) ◽  
A. D. GALATOS (Α. Δ. ΓΑΛΑΤΟΣ) ◽  
F. ATHANASSOPOULOU (ΑΘΑΝΑΣΟΠΟΥΛΟΥ Φ.)
Keyword(s):  
Body Weight ◽  
Weight Ratio ◽  
Water Soluble ◽  
Health State ◽  
Clove Oil ◽  
Farmed Fish ◽  
Anaesthetic Agents ◽  
Rapid Action ◽  
Artificial Breeding ◽  
The Usa

Anaesthetic agents are routinely used in farmed fish to permit the performance of painful procedures, ease handling and reduce stress during grading, tagging, transport, blood sampling, artificial breeding and vaccination of fish. An ideal anaesthetic for fish should induce anaesthesia rapidly, allow a rapid recovery, be safe to both fish and user, leave low tissue residues and be inexpensive and easy to use. A variety of factors, including species, size, body weight, gill surface area to body weight ratio, lipid content, sex, sexual maturity, physical condition and health state of the fish, as well as temperature, pH, salinity and oxygen and mineral content of the water may affect the anaesthetic process in fish. The most commonly used anaesthetics are tricaine, benzocaine, phenoxyethanol, quinaldine, quinate, clove oil and metomidate. Tricaine is the only anaesthetic licensed for farmed fish use in the USA. It is easy to use and safe, but also expensive. Benzocaine is cheaper, but poorly water-soluble and has to be prepared in either ethanol or acetone. Phenoxyethanol is considered by most fish farmers as the anaesthetic of choice for farmed fish, because of its easy preparation, low price, rapid action and bactericidal and fungicidal properties. Quin aldine and quinate are effective and easy to use anaesthetic agents, however, a number of adverse effects have been reported to both fish and users. The active ingredients of clove oil are eugenol and isoeugenol and have been introduced only recently as fish anaesthetics. Apart from being inexpensive and easy to use, clove oil has also bactericidal and fungicidal properties. Metomidate may have a certain advantage as it probably evokes a less severe stress response in fish than the other anaesthetic agents.

INFLUENCE OF Aspergillus oryzae FERMENTED SOYBEAN MEAL ON PLASMA CHOLESTEROL AND BILE ACID LEVELS IN HYBRID TILAPIA AND POMPANO FISH

2020 ◽  
Vol 65 (10) ◽  
pp. 154-163
Author(s):  
Hung Nguyen Phuc ◽  
Anh Nguyen Phuong
Keyword(s):  
Body Weight ◽  
Bile Acid ◽  
Aspergillus Oryzae ◽  
Fish Species ◽  
Soybean Meal ◽  
Plasma Cholesterol ◽  
Total Cholesterol Level ◽  
Reduction Rate ◽  
Total Bile Acid ◽  
Initial Body Weight

Fermentation has been suggested as an economical and effective method to eliminate anti-nutritional factors and improve the nutritional value of Defatted soybean meal (SBM). The present study aimed to examine the effects of Aspergillus oryzae fermented SBM (FSBM) on plasma cholesterol and bile acid levels in hybrid tilapia and pompano. Two isonitrogenous and isoenergetic experimental diets for each fish species were formulated with SBM and FSBM as main ingredients. The diets were denoted as SBMD (SBM-based diet) and FSBMD (FSBM-based diet). Thirty juvenile hybrid tilapia (initial body weight 55 g) and eighteen juvenile pompanos (initial body weight 61 g) were allocated to each of the 4 concrete tanks (1500-L holding capacity) and each of the 4 circular polyvinyl chloride tanks (500-L holding capacity), respectively, resulting in two replicate tanks per dietary treatment for each fish species. For 4 weeks, the fish were handfed the experimental diets to apparent satiation twice daily. The results showed that feeding FSBMD tended to increase plasma total cholesterol level, gallbladdersomatic index, anterior intestinal total bile acid level, and posterior\anterior intestinal total bile acid reduction rate compared to SBMD in both hybrid tilapia and pompano. The differences in these parameters between FSBMD and SBMD dietary groups were significant in hybrid tilapia (P < 0.05), while no significant differences were found between pompano fed FSBMD and SBMD. These results indicated that fermentation of SBM with A. oryzae could effectively improve physiological conditions of hybrid tilapia fed soybean proteinbased diet and suggested that inclusion of A. oryzae FSBM might enhance growth and feed performances of the fish.

Dietary fucoidan extracted from macroalgae Saccharina japonica alleviate hepatic lipid accumulation of black seabream (Acanthopagrus schlegelii)

2021 ◽  
Author(s):  
chuanqi yu ◽  
fan lin ◽  
haoji guo ◽  
guoquan liu ◽  
xianda he ◽  
...  
Keyword(s):  
Risk Factor ◽  
Fish Species ◽  
Lipid Accumulation ◽  
Liver Diseases ◽  
Artificial Diet ◽  
Saccharina Japonica ◽  
Hepatic Lipid ◽  
Hepatic Lipid Accumulation ◽  
Black Seabream ◽  
Cultured Fish

The use of artificial diet often leads to the increase of risk factor for the development of liver diseases, such as hepatic lipid accumulation (HLA) in commercial cultured fish species....

scholarly journals Parameters associated with growth factors of five fish species in the Atrai River, Dinajpur, Bangladesh

2018 ◽  
Vol 53 (2) ◽  
pp. 155-160
Author(s):  
MR Islam ◽  
MG Azom
Keyword(s):  
Body Weight ◽  
Growth Factors ◽  
Fish Species ◽  
Condition Factor ◽  
Good Health ◽  
Health Condition ◽  
Future Research ◽  
Two Dimensional ◽  
Relative Body Weight ◽  
Good Health Condition

For evaluation of Fulton’s condition factor (CFf), relative body weight (BWr) and form (a3.0) factor affecting growth, 5 fishes (Aspidoparia jaya, Gagata cenia, G. youssoufi, Salmophasia bacaila and S. phulo) were collected from the Atari River in Dinajpur district of Bangladesh. Significant differences (p < 0.05) were recorded among the values of CFf (0.47-1.56) but not for BWr (79.60- 128.39). Based on CFf values, analysis of similarities (ANOSIM, p < 0.01) revealed that maximum distances (R = 0.9946) were found between G. youssoufi and S. bacaila while lowest (R = 0.2175) between G. cenia and S. phulo. Using two-dimensional nMDS scaling of CFf and BWr, G. youssoufi showed good health condition (CFf = 1.22±0.01; BWr = 100.63±0.79) and were separated (stress = 0.0003) from other fishes. Lowest a3.0 value was noted for S. bacaila (0.004) and highest for G. youssoufi (0.012). Therefore, G. youssoufi showed healthier and former body with more adaptability in this river than those of others. These are the first records for proper management of above mentioned fish species and future research in the near future.Bangladesh J. Sci. Ind. Res.53(2), 155-160, 2018

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