scholarly journals A preliminary study on selected utility traits and mineral composition of meat in King pigeons managed under extensive system in Poland

2021 ◽  
Vol 20 (1) ◽  
pp. 47-54
Author(s):  
Danuta Majewska ◽  
◽  
Tomasz Pohorecki ◽  
Beata Matysiak ◽  
◽  
...  
Keyword(s):  
Growth Rate ◽  
Mineral Composition ◽  
Breeding Season ◽  
Reproductive Performance ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Highest Weight ◽  
Slaughter Performance ◽  
Private Breeder ◽  
Preliminary Study

The study was conducted on King pigeons managed by a private breeder in Poland. The studied population consisted of three years old parent pigeon pairs of the King breed and the their offspring obtained during the breeding season (March-November). The aims of the research involved an evaluation of the reproductive performance of King pigeons, analysis of growth rate, survival, slaughter performance and mineral composition of squab meat. In the analyzed breeding season, an average of 8.7 eggs was obtained per female. The fertilization rate and hatching rate of chicks from fertilized eggs were 80.0% and 75.8%, respectively. The highest weight gain in pigeons was observed between the date of hatching and 4 weeks of age. Pigeons slaughtered at 6 weeks of age were characterized by higher slaughter performance (66.1%) than 4 week-old pigeons (60.4%). Meat of this pigeon breed is a rich source of valuable minerals such as potassium (4060 mg per kg), magnesium (296 mg per kg), iron (52 mg per kg), zinc (9 mg per kg) and silicon (30 mg per kg).

scholarly journals Aquaculture potential of Bohai Red and its hybrid with Agropecten irradians concentricus in southern China

2019 ◽  
Author(s):  
Gaoyou Yao ◽  
Jianqiang Li ◽  
Yuyuan Wu ◽  
Xiaoying Su ◽  
Jie Tan ◽  
...  
Keyword(s):  
Growth Rate ◽  
Natural Waters ◽  
Southern China ◽  
Fertilization Rate ◽  
Temperature Tolerance ◽  
Hatching Rate ◽  
Poor Growth ◽  
The North ◽  
High Temperature Tolerance ◽  
New Varieties

AbstractArgopecten irradians concentricus (Say), one of four geographic subspecies of the bay scallop, has become the major cultured species in southern China since its introduction in 1995. However, its population has been significantly reduced due to high mortality.Also, poor growth rate has been observed following decades of culture.Therefore, the introduction or creation of new varieties is an urgent need. This study describes the first introduction of the new strain, Bohai Red, from the north to southern China. Hybridization trials were conducted between the recently introduced new strain and the local specie, A. irradians concentricus (Say). The success of hybridization was confirmed by SSR maker.The adult and juvenile Bohai Red cannot tolerate high temperatures compared to A. irradians concentricus (Say), whether in natural waters or under laboratory conditions. Fertilization rate for A. irradians concentricus (Say) × Bohai Red exceeded 80%, and hatching rate was 70%. The hybrids exhibit heterosis in survival rate, growth rate, and high-temperature tolerance, demonstrating substantial potential to replace A. irradians concentricus (Say) in southern China.

scholarly journals Reproductive performance of asian catfish (Hemibagrus wyckii Bagridae), a candidate species for aquaculture

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 683 ◽  
Author(s):  
Netti Aryani ◽  
Indra Suharman ◽  
Hafrijal Syandri
Keyword(s):  
Reproductive Performance ◽  
Fertilization Rate ◽  
Culture Conditions ◽  
Hatching Rate ◽  
Male Fish ◽  
Egg Weight ◽  
Study Results ◽  
Candidate Species ◽  
Asian Catfish ◽  
Egg Diameter

Background: Hemibagrus wyckii Bagridae is one of the most important economic fish species that lives in the rivers and reservoir in Riau Province, Indonesia. The present study aimed to determine the reproductive performance of H.wyckii under culture conditions. Methods: A total of 10 female and 10 male fish were selected, and weight, length, characteristics of egg and sperm, and hatchery performance were measured. Eggs were fertilized using the dry method. Egg weight and egg diameters were measured for 50 eggs per female. Egg size (50 eggs for each fish) was measured using an Olympus microscope (CX40). Then, saline solution was added over the eggs, followed by the addition of pooled sperm from 10 males. Results: Average relative fecundity, egg weight and egg diameter were 2060±512 eggs/kg fish, 29.86±1.21 mg and 2.67±0.26 mm, respectively. The fertilization rate and hatching rate were 60.91±4.68% and 42.91±2.92% respectively. Sperm characteristics such as volume per fish (mL), pH, concentration (per mL), motility (%) and duration of motility (second) were 0.82±0.20, 7.15±0.12, 3.68±0.15, 72.77±1.46 and 47.5±4.84, respectively. Conclusion: The study results and scientific observations regarding reproductive performance suggest that H. wyckii can be considered a new candidate species for aquaculture.

scholarly journals THE EFFECT OF DIFFERENT LEVELS OF VITAMIN E ON THE REPRODUCTIVE PERFORMANCE OF ZEBRAFISH (Danio rerio)

2007 ◽  
Vol 4 (2) ◽  
pp. 125
Author(s):  
N.B.P Utomo ◽  
M. Zairin Junior ◽  
T.L. Yusuf ◽  
I. Mokoginta ◽  
M. Bintang
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Danio Rerio ◽  
Reproductive Performance ◽  
Total Lipid Content ◽  
Fertilization Rate ◽  
Dietary Vitamin ◽  
Hatching Rate ◽  
Digestible Energy ◽  
Different Levels

<p>This experiment was conducted to determine the dietary Vitamin E requirement for reproduction of broodstock zebrafish Danio rerio.  Four isonitrogenous (39% crude protein) and isocaloric (3,260 kcal digestible energy/kg diet) practical diets, namely diets A, B, C, and D with different levels of Vitamin E were fed to zebrafish broodstock.  The broodstock were cultivated in aquaria.  Diet A contained low dosage of Vitamin E (5 mg Vitamin E /kg diet), while diets B (62 mg Vitamin E /kg diet), C (125 mg Vitamin E /kg diet), and diet D (187 mg Vitamin E /kg diet), combined respectively with 1% n-3 fatty acids and 2% n-6 fatty acids.  Fish were fed ad satiation for 60 days using these diets.  During feeding period, gonad maturation stages were examined.  The dietary with different level of Vitamin E affected egg size, chemical content, total number of larvae, normal larvae, and survival rate of larvae produced, fecundity, fertilization rate, and hatching rate.  On the other hand, fish fed on experimental diets did not show any significance differences in the gonad somatic index, fecundity, fertilization rate, and hatching rate.  Fish fed on diet D produced the highest fecundity (633.65 ± 71.86 eggs/grams of fish), fertilization rate (92.3 ± 7.7%), and hatching rate (80.31 ± 9.8%).  The total lipid content of eggs were significant, ranging from D (39.7%), C (33.5%), B (32.1%), and A (29.5%).  At a dosage of 1% of dietary n-3 fatty acids and 2% n-6 fatty acids, zebrafish require 187 mg Vitamin E/kg feed in the diet for reproduction.  .</p> <p>Keywords:  vitamin E, reproductive performance, Danio rerio</p> <p> </p> <p>ABSTRAK</p> <p>Penelitian ini ditujukan untuk mengetahui kebutuhan Vitamin E pada pakan induk ikan zebra (Danio rerio) untuk reproduksi.  Empat pakan perlakuan yang iso-protein (39%) dan iso-kalori (3.260 kcal digestible energy/kg pakan), dinamakan pakan A, B, C, dan pakan D dengan kandungan Vitamin E yang berbeda diberikan kepada induk ikan zebra.  Induk ikan dipelihara pada akuarium.  Pakan A mengandung Vitamin E terendah (5 mg Vitamin E/kg pakan), sedangkan pakan B mengandung Vitamin E 62 mg Vitamin E/kg pakan, pakan C asam mengandung Vitamin E 125 mg /kg pakan, dan pakan D mengandung Vitamin E 187 mg /kg pakan.  Semua pakan perlakuan mempunyai kombinasi asam lemak n-3 berbanding n-6 sebesar 1:2.  Ikan diberi pakan secara ad satiation selama 60 hari pemeliharaan.  Selama masa pemberian pakan, tingkat kematangan gonad diperiksa secara teratur.  Perbedaan kandungan vitamin E dalam pakan mempengaruhi fekunditas, derajat pembuahan telur, serta derajat penetasan telur.  Pakan perlakuan tidak mempengaruhi nilai gonad somatik indeks dan kelangsungan hidup larva umur 3 hari.  Pemberian pakan D menghasilkan fekunditas (633.65 ± 71.86  telur/gram induk), derajat pembuahan telur (92.3 ± 7.7%), serta derajat penetasan telur (80.31 ± 9,8%) terbaik.  Total kandungan lemak pada telur berbeda nyata, yaitu pada pakan D (39.7%), C(33.5%), B(32.1%), dan pakan A(29.5%).  Pada kandungan 1% asam lemak n-3 dan 2% asam lemak n-6, ikan zebra membutuhkan 187 mg Vitamin E/kg pakan untuk reproduksi yang normal. </p> <p>Kata kunci:  Vitamin E, penampilan reproduksi, Danio rerio</p>

scholarly journals PERFORMA REPRODUKSI UDANG WINDU, Penaeus monodon TRANSGENIK PASCA INSEMINASI BUATAN MENGGUNAKAN SUMBER SPERMATOFOR YANG BERBEDA

2018 ◽  
Vol 13 (1) ◽  
pp. 11 ◽  
Author(s):  
Samuel Lante ◽  
Andi Tenriulo ◽  
Andi Parenrengi
Keyword(s):  
Reproductive Performance ◽  
Penaeus Monodon ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Air Exposure ◽  
Wild Male ◽  
Tiger Shrimp ◽  
Larval Quality ◽  
Significant Difference ◽  
Different Sources

Udang windu transgenik merupakan udang hasil rekayasa dengan mengintroduksikan gen antivirus yang diisolasi dari udang windu untuk menghasilkan fenotipe yang lebih baik. Domestikasi udang transgenik telah dilakukan dan berhasil memijah/bertelur, tetapi umumnya telurnya infertil yang disebabkan tidak terjadinya pembuahan di tambak pemeliharaan. Udang betina tidak kawin ditandai tidak membawa spermatofor di telikumnya. Upaya untuk mendapatkan telur fertil udang dengan inseminasi buatan (IB) perlu dilakukan. Tujuan penelitian untuk mengevaluasi performa reproduksi udang betina transgenik dan mutu larva yang dihasilkan pasca IB menggunakan sumber spermatofor yang berbeda. Penelitian ini dirancang dengan tiga perlakuan yaitu: IB menggunakan spermatofor udang windu jantan transgenik (SJT), spermatofor udang windu jantan alam Sulawesi Selatan (SulSel) (SJS) dan spermatofor udang windu jantan alam Aceh (SJA). IB dilakukan pada udang windu betina transgenik setelah dua hari moulting. Hasil penelitian menunjukkan bahwa udang windu betina transgenik pasca IB perlakuan SJT menghasilkan total telur fertil sebanyak 766.949 butir, perlakuan SJS 535.644 butir dan perlakuan SJA 678.016 butir dengan daya tetas telur fertil yaitu: pada SJT, SJS, dan SJA masing-masing adalah 53,5%; 53,7%; dan 55,0%. Uji vitalitas larva dengan perendaman dalam larutan formalin 150-200 mg/L, perendaman air tawar: 5-15 menit, dan pengeringan 3-9 menit menghasilkan sintasan larva udang yang relatif sama pada ketiga perlakuan. Nilai morfologi larva perlakuan SJT, SJA, dan SJS adalah masing-masing 85,0; 84,5; dan 75,0. Dari hasil penelitian ini mengindikasikan bahwa performa reproduksi udang windu betina transgenik dan mutu larva yang dihasilkan pasca IB tidak dipengaruhi oleh sumber spermatofor induk udang windu jantan Penaeus monodon.Transgenic tiger shrimp, Penaeus monodon has been developed in the last decade to equip shrimp with immunity against viral diseases. However, the effort to produce large quantities of specific pathogen resistance (SPR) tiger shrimp seed is hampered by several constraints in the domestication process. The successfulness of domesticated broodstock in producing larvae is very low due to low fertilization rate. An artificial insemination (AI) offers a solution to increase fertilization rate in crustacean. This study was aimed to evaluate the reproductive performance of female transgenic tiger shrimp broodstock and their larval quality after artificially inseminated with males from different sources. The spermatophores of male from different sources i.e. transgenic male spermatophore (SJT), wild male from South Sulawesi (SJS), and wild male from Aceh (SJA) were collected through electric shock and inseminated to female transgenic broodstock two days after moulting. The results showed that the total numbers of fertile eggs produced from SJT, SJS, and SJA treatment were 766,949 pcs; 535,644 pcs; and 678,016 pcs, respectively and not significantly different (P>0.05). Similar to the number of fertile eggs, the hatching rate of eggs of SJT (53.5%), SJS (53.7%), and SJA (55.0%) also did not indicate any significant differences (P>0.05). On the larval vitality test by soaking the larvae in formalin and freshwater as well as by air exposure at different duration showed no significant difference on the survival rate (P>0.05) as indicated by score value at each treatment of 85.0, 84.5, and 75.0 for SJT, SJS, and SJA, respectively. In conclusion, the reproductive performance of female transgenic tiger shrimp and their larval quality were not affected by the different sources of spermatophores inseminated artificially during the spawning cycle.

scholarly journals REPRODUCTIVE PERFORMANCE OF DOMESTICATED BROODSTOCK OF SILVER PERCH, Bidyanus bidyanus (MITCHELL 1838) AND THE RELATIONSHIP BETWEEN OIL GLOBULE FRAGMENTATION AND EGG QUALITY

2017 ◽  
Vol 12 (2) ◽  
pp. 43 ◽  
Author(s):  
Sulaeman Sulaeman ◽  
Ravi Fotedar
Keyword(s):  
Survival Rate ◽  
Reproductive Performance ◽  
Egg Quality ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
High Fecundity ◽  
Fertilisation Rate ◽  
Significant Difference ◽  
The Relationship

The experiments investigated the reproductive performance of the domesticated broodstock of the silver perch and the relationship between various degrees of oil globule fragmentation and egg quality. Six years old of second generation broodstock (n=3) were evaluated based on the fecundity, fertilisation rate, hatching rate, the degree of oil fragmentation of egg, and the quality of embryos and larvae produced. The fragmentation were grouped into three categories: un-fragmented (cat-1), moderately fragmented (cat-2), and highly fragmented (cat-3). The results showed that the broodstock had a relatively high fecundity (132,400 ± 7,22), fertilization rate (94.27 ± 1.28%), and hatching rates (87.94 ± 1.23%). The survival rate of larvae at 12 days post hatching (dph) in cat-1 (71.3 ± 0.9%) was higher than cat-2 (66.7 ± 0.9%) whereas cat-2 was higher than cat-3 (61.3 ± 0.3%). The eggs was dominated by cat-1 (78.11 ± 2.44%) which was significantly higher than cat-2 (21.26 ± 2.45%) and cat-3 ones (0.40 ± 0.21%). The survival rate of embryo at 20 hours post spawning (hps) and hatching rate of cat-1 (95.33 ± 0.00% and 93.33 ± 0.00%) and cat-2 (90.00 ± 0.00% and 85.00 ± 0.00%) were significantly higher than cat-3 (72.33 ± 1.76% and 60.33 ± 0.00%). The total length (TL) of the larvae of cat-1 and cat-2 (8.44 ± 0.21 mm and 8.35 ± 0.23 mm respectively) were significantly higher than larvae of cat-3 (7.09 ± 0.14 mm). No significant difference was found in the larval deformities among any categories. In conclusion, the reproductive performance of six year-old broodstock silver perch showing acceptable performance and egg categorisation based on oil globule fragmentation can be used as a useful tool to indicate eggs quality of silver perch.

scholarly journals Comparative Test Of Ovaprim, Spawnprim, And Hcg In The Process Of Spawning Of Pangasianodon Hypopthalmus, Sauvage 1987.

2021 ◽  
Vol 26 (1) ◽  
pp. 17
Author(s):  
Vinka Leonita ◽  
Deny Sapto Chondro Utomo ◽  
Hilma Putri Fidyandini
Keyword(s):  
Reproductive Performance ◽  
Design Method ◽  
Economic Value ◽  
Fertilization Rate ◽  
Comparative Test ◽  
Hatching Rate ◽  
Hormonal Stimulation ◽  
Pangasianodon Hypophthalmus ◽  
Significant Difference ◽  
Production Target

Pangasianodon hypophthalmus is a type of freshwater fish that has potential and has economic value. Its production target which increases every year causes farmers to spawn with the help of hormonal stimulation. The aimed of this research was to test and find out the results of the use of three different hormones namely Ovaprim, Spawnprim, and HCG in P. hypopthalmus spawning. This research was conducted in January 2020 at the Trimurjo Fish Seed Center, Central Lampung. This research used a randomized complete design method with the 3 treatments, P1 (Ovaprim 0,5 ml / kg), P2 (Spawnprim 0,5 ml / kg), P3 (HCG 500 IU / kg) and 3 replications. The results of this research indicate a significant difference (p <0,05) in the relative fecundity parameters, fertilization rate, and hatching rate, but not significantly different in the parameters of latensi periode and diameter of eggs. In P1, Ovaprim hormone injections provide better reproductive performance compared to Spawnprim and HCG injections.

scholarly journals HIBRIDISASI INTERSPESIFIK TIGA SPESIES IKAN TOR (Tor soro, Tor douronensis, DAN Tor tambroides) SECARA RESIPROKAL PADA FASE LARVA

2021 ◽  
Vol 16 (1) ◽  
pp. 1
Author(s):  
Toni Yulian Kusmardani ◽  
Otong Zenal Arifin ◽  
Agoes Soeprijanto ◽  
Yunita Maimunah
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Fish Larvae ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Market Demand ◽  
Farmed Fish ◽  
Pure Breed

Ikan Tor merupakan genus yang potensi dibudidayakan karena memiliki nilai ekonomis tinggi. Masalah yang ada adalah lambatnya pertumbuhan dan rendahnya tingkat sintasan benih ikan tersebut dalam jumlah yang memadai untuk pembudidaya. Hibridisasi atau persilangan merupakan suatu upaya untuk mendapatkan kombinasi antara populasi yang berbeda untuk menghasilkan keturunan yang memiliki sifat unggul. Hibridisasi tiga spesies ikan Tor secara resiprokal antara Tor soro (Ts), Tor douronensis (Td), dan Tor tambroides (Tt) dilakukan guna untuk mengetahui keberhasilan hibridisasi beda spesies tetapi masih dalam genus. Metode yang digunakan pada penelitian ini adalah eksperimen dengan enam perlakuan dan tiga kali ulangan hasil hibrida. Hasil yang diperoleh menunjukkan nilai derajat pembuahan tertinggi dihasilkan dari hibridisasi Td >< Ts (93,66 ± 1,15%), daya tetas tertinggi dihasilkan dari persilangan Td >< Ts (88,00 ± 1,00%), laju pertumbuhan spesifik bobot tertinggi dihasilkan dari hibridisasi Ts >< Td dan Ts >< Tt (5,62 ± 0,17%; 5,44 ± 0,06%), laju pertumbuhan spesifik panjang tertinggi dihasilkan dari hibridisasi Ts >< Td (1,79 ± 0,11%) dan sintasan tertinggi dihasilkan dari hibridisasi Tt >< Ts (86,00 ± 3,60%). Nilai heterosisyang meliputi derajat pembuahan, daya tetas telur, pertumbuhan benih, dan sintasan ikan sampai umur 41 hari menunjukkan nilai negatif, kecuali laju pertumbuhan spesifik bobot. Hibridisasi berdampak pada meningkatnya jumlah larva abnormal yang dihasilkan dibanding tetuanya (pure breed).Tor fish has the potential to be commercially developed as a farmed fish due to its high economic value and market demand. However, slow growth and low survival rate of the fish larvae and insufficient seed availability for aquaculture farmers are the main bottlenecks to develop a profitable aquaculture for tor fish. Hybridization or crossbreed is an attempt to get a combination between different populations to produce offspring inheriting superior characters. A reciprocal hybridization between Tor soro (Ts), Tor douronensis (Td), and Tor tambroides (Tt) was carried out to assess the success rate of hybridization between the three species. The study used an experimental design with six treatments and three replications to measure and compare hybridization and survival parameters between the species. The highest fertilization rate attained by hybridization Td >< Ts (93.66 ± 1.15%, the highest hatching rate was achieved by Td >< Ts (88.00 ± 1.00%), the highest weight specific growth rate was gained by hybridization Ts >< Td and Ts >< Tt (5.62 ± 0.17%; 5.44 ± 0.06%), the highest lenght specific growth rate was achieved by hybridization Ts >< Td (1.79 ± 0.11%) and highest survival rate was resulted from hybridization between Tor tambroides >< Tor tambroides (90.33 ± 1.52%). The observed heterosis (degree of fertilization rate, hatching rate, growth rate, and survival rate until the age of 41 days) showed that all parameter characters were negative, except for the weight-specific growth rate characters. This study concludes that hybridization have an impact on increasing the number of abnormal larvae produced compared to their parents (pure-breed).

scholarly journals Natural Breeding of Snakehead Fish (Channa striata) On Concrete Ponds in Cangkringan Center For Aquaculture Technology Development Special Region of Yogyakarta

2019 ◽  
Vol 10 (2) ◽  
pp. 83-93
Author(s):  
Kurniawan Wahyu Hidayat ◽  
DH. Guntur Prabowo ◽  
Dwi Amelia ◽  
Supanto
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Technology Development ◽  
Specific Growth ◽  
Work Practice ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Channa Striata ◽  
Special Region

Snakehead fish (Channa striata) is a member of the Channidae family, which can live in freshwater areas or rivers, brackish water, and swamps. Snakehead fish belong to the group of savage and aggressive carnivorous fish. Snakehead fish reproduce through spawning naturally in the rainy season. Natural physiological and environmental factors can be used as a signal to stimulate spawning in this type of fish. This fieldwork practice was carried out at the Center for Aquaculture Technology Development (BPTPB), this work practice used observation, interview, and documentation methods, parameters observed included fecundity, egg fertilization, hatching rate, specific growth rate, and survival rate. The results of the observation showed that it produced 10,000 eggs, a fertilization rate of 92%, a hatching rate of 94% growth rate, a specific growth rate of 15% and a survival rate of 94%.

scholarly journals Reproductive performance of catfish Clarias sp. with probiotics Bacillus sp. NP5 addition through feed

2020 ◽  
Vol 19 (1) ◽  
pp. 74-83
Author(s):  
Safira Qisthina Ayuningtyas ◽  
Muhammad Zairin Jr. ◽  
Widanarni
Keyword(s):  
Reproductive Performance ◽  
Block Design ◽  
Gonadosomatic Index ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Bacillus Sp ◽  
Randomized Block Design ◽  
Average Size ◽  
And Control ◽  
Egg Diameter

ABSTRACT The intensification of catfish culture requires a regular and sustainable good seeds quality. Microbial-based aquaculture with probiotic application is expected to improve the reproductive performance of catfish. The aim of this study was to evaluate the reproductive performance of catfish given probiotics Bacillus sp. NP5 with different concentrations through feed. This study used a Completely Randomized Block Design (CRBD) with the administration of probiotic Bacillus sp. NP5 at 2% concentration of 108 CFU/mL and 1010 CFU/mL in feed given and control (without probiotics), then repeated four times. Catfish broodstocks with an average size of 955 ± 261.27 g were kept in a net sized 1 m×1 m×1 m with seven broodstocks per net. Parameters observed included the Gonadosomatic Index (GSI), fecundity, number of matured eggs, frequency distribution of egg diameter, fertilization rate, and hatching rate. The result showed that the GSI value of female catfish broodstock was significantly different in sixth week as the highest value was obtained from 1010 CFU/mL probiotics with 5.19%. Moreover, the fecundity of all treatments showed significantly different results (P<0.05) as the highest value was on the concentration of 1010 CFU/mL Bacillus sp. NP5 with 137,123 ± 32,635 eggs/broodstock. This study concludes that the administration of probiotics Bacillus sp. NP5 with 1010 CFU/mL in feed given to catfish broodstock increases the fecundity (137,123 eggs/broodstock), GSI (5.19%), number of matured eggs percentage (64.50%), and hatching rate (82.53%).  Keywords: Bacillus sp. NP5, catfish, reproductive performance   ABSTRAK   Intensifikasi budidaya ikan lele menuntut penyediaan benih yang berkualitas secara teratur dan berkelanjutan. Budidaya berbasis mikroba diharapkan dapat meningkatkan kinerja reproduksi ikan lele. Tujuan penelitian ini adalah mengevaluasi performa reproduksi ikan lele yang diberi probiotik Bacillus sp. NP5 dengan konsentrasi berbeda melalui pakan. Penelitian ini menggunakan rancangan acak kelompok lengkap (RAKL) dengan pemberian probiotik Bacillus sp. NP5 pada konsentrasi 108 CFU/mL dan 1010 CFU/mL sebanyak 2% dari pakan yang diberikan serta kontrol (tanpa pemberian probiotik), masing-masing dengan empat ulangan. Induk ikan lele dengan ukuran 955 ± 261.27 g dipelihara pada jaring hapa ukuran 1 m × 1 m × 1 m sebanyak tujuh ekor per jaring hapa. Parameter yang diamati meliputi indeks kematangan gonad (IKG), fekunditas, jumlah telur matang, sebaran frekuensi diameter telur, derajat pembuahan, dan derajat penetasan. Hasil penelitian menunjukkan bahwa nilai IKG induk betina ikan lele berbeda nyata pada minggu keenam dengan nilai tertinggi diperoleh pada perlakuan probiotik 1010 CFU/mL yaitu sebesar 5.19%. Selain itu, fekunditas semua perlakuan menunjukkan hasil yang berbeda nyata (P<0.05) dengan nilai tertinggi pada perlakuan pemberian probiotik Bacillus sp. NP5 dengan konsentrasi 1010 CFU/mL sebesar 137,123 ± 32,635 telur/induk. Kesimpulan, pemberian probiotik Bacillus sp. NP5 dengan konsentrasi 1010 CFU/mL melalui pakan kepada induk ikan lele mampu meningkatkan nilai fekunditas 137,123 telur/induk, GSI 5,19%, persentase jumlah telur matang 64,50% dan derajat penetasan telur 82,53%.   Kata kunci: Bacillus sp., ikan lele, performa reproduksi  

scholarly journals Reproductive performance of asian catfish ( Hemibagrus wyckii Bleeker, 1858), a candidate species for aquaculture

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 683 ◽  
Author(s):  
Netti Aryani ◽  
Indra Suharman ◽  
Hafrijal Syandri
Keyword(s):  
Reproductive Performance ◽  
Fertilization Rate ◽  
Culture Conditions ◽  
Hatching Rate ◽  
Male Fish ◽  
Egg Weight ◽  
Study Results ◽  
Candidate Species ◽  
Asian Catfish ◽  
Egg Diameter

Background: Hemibagrus wyckii Bagridae is one of the important economic fish species that lives in the rivers and reservoir in Riau Province, Indonesia. The present study aimed to determine the reproductive performance of H.wyckii under culture conditions. Method s: A total of 10 female and 10 male fish were selected, and weight, length, characteristics of egg and sperm, and hatchery performance were measured. Eggs were fertilized using the dry method. Egg weight and egg diameters were measured for 50 eggs per female. Egg size (50 eggs for each fish) was measured using Labo microscope model  L-711 using software camera 3. Then, saline solution was added over the eggs, followed by the addition of pooled sperm from 10 males. Results: Average relative fecundity, egg weight and egg diameter were 2060±512 eggs/kg fish, 29.86±1.21 mg and 2.67±0.26 mm, respectively. The fertilization rate and hatching rate were 60.91±4.68% and 42.91±2.92% respectively. Sperm characteristics such as volume per fish (mL), pH, concentration (per mL), motility (%) and duration of motility (second) were 0.82±0.20, 7.15±0.12, 3.68±0.15, 72.77±1.46 and 47.5±4.84, respectively. Conclusion: The study results and scientific observations regarding reproductive performance suggest that H. wyckii can be considered a new candidate species for aquaculture.

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