Growth Performance of Larvae Produced from Vitamin E Treated Female Clarias batrachus (Linnaeus)

2013 ◽  
Vol 20 (1-2) ◽  
pp. 107-116
Author(s):  
MFA Mollah ◽  
A Roy ◽  
MSA Mamun

An experiment to observe the growth performance of the larvae produced from female Clarias batrachus treated with 4 dietary levels of vitamin E viz. 0 mg, 50 mg, 100 mg, and 200 mg /kg feed was conducted for 28 days. After rearing for 3 months females were used for induction of breeding to produce larvae. Same dose of pituitary gland (100 mg PG/kg body weight) was used for all treatments. From the 7th day of hatching, the larvae were reared for another period of 28 days to see growth and survival rate of the larvae produced by the broods maintained under different dietary levels of vitamin E. In case of growth performance (percent length gain, percent weight gain, specific growth rate) and health condition larvae of T2 (50 mg vitamin E/kg feed) showed significantly better result when compared with those of T1 and T3. There was no significant difference in the growth performance between the larvae of T2 and T4. Larvae of T2 although showed higher survival rate but the difference between different treatments was insignificant. The results concluded that 50 mg vitamin E/kg feed is more suitable to increase growth and survival rate of the larvae.DOI: http://dx.doi.org/10.3329/pa.v20i1-2.16862 Progress. Agric. 20(1 & 2): 107 – 116, 2009

2013 ◽  
Vol 20 (1-2) ◽  
pp. 125-132 ◽  
Author(s):  
MFA Mollah ◽  
MN Sarowar

An experiment was conducted to observe growth performance and survival of the larvae produced from the brood fish of Ompok pabda treated with 4 dietary levels of vitamin E for 90 days viz. 0 (served as control), 50, 100 and 150mg vitamin E/kg feed under 4 treatments i.e. treatment T1, T2, T3 and T4. After the feeding trials, the brood fish were induced to breed with equal dose of PG extract i.e. 12 and 18mg/kg body weight for male and female respectively and subsequently larvae were produced. The experiment was started with 5 days-old larvae having an average weight and length of 21.4 ± 8.6 mg and 13.8 ± 2.49 mm respectively in 16 bowls of 10l capacity divided into 4 treatments corresponding to the broods fish having 3 replications each with 100 larvae in each bowl i.e. 10 larvae per liter. After rearing for 28 days with live-food tubificid worms the highest growth rate in terms of weight (609.13 ± 15.20 mg) and length (86.70 ± 1.84 mm), gain in weight (587.78 ± 15.27 mg) and length (72.98 ± 1.81 mm), specific growth rate (30.36 ± 0.12%), health condition (16.63 ± 0.69 mg/mm) and survival (83.25 ± 2.87) were showed by the larvae produced from brood fish fed with 100 mg vitamin E/kg feed (treatment T3) while poorest was observed by the larvae produced from brood fish fed 150 mg vitamin E/kg feed. The results imply that inclusion of 100mg vitamin E/kg feed in the diet of O. pabda brood fish is best for enhancing growth and survival of larvae indicating that vitamin E has a positive impact. The results also suggest that inclusion of higher level of vitamin E in the diet exerts an antagonistic effect on the produced larvae.DOI: http://dx.doi.org/10.3329/pa.v20i1-2.16864 Progress. Agric. 20(1 & 2): 125 – 132, 2009


2018 ◽  
Vol 7 (1) ◽  
pp. 15-21
Author(s):  
Md Baki Billah ◽  
Suny Akter ◽  
Suraiya Parveen ◽  
Azizur Rahman ◽  
Lutfun Nahar ◽  
...  

An experiment was conducted with Labeo bata fry for 60 days to examine the growth performance and survival in response to three supplementary feeds i.e. wheat bran, maize bran and mixed diet. The length gain, percent length gain, weight gain, percent weight gain and specific growth of the fry were found significantly higher (p<0.05) in mixed diet. The highest survival rate (74.38±8.1%) was shown by the mixed diet treated fry which was significantly higher than those of maize bran and wheat bran treated fry respectively. There were no significant differences (p<0.05) among the treatments in term of water temperatures, pH and dissolved oxygen (DO). Thus, on the basis of the fry growth performance and survival rate, it could be suggested that the mixed diet of wheat bran and maize bran is suitable for the culture of L. bata fry.Jahangirnagar University J. Biol. Sci. 7(1): 15-21, 2018 (June)


2021 ◽  
Vol 13 (3) ◽  
pp. 1-8
Author(s):  
Njihia Dedan Karanja ◽  
Thuy Yen Duong

The development of bighead catfish (Clarias macrocephalus) aquaculture in Viet Nam has been constrained by the slow growth performance in the domesticated strain. Crossbreeding can be a solution to improve fish production. This study was aimed to evaluate the growth and survival performance of the second generation (G2) fingerlings crossbreeds (CMCT and CTCM) from two bighead catfish strains (wild Ca Mau, CM, and domesticated Can Tho, CT) compared to offspring from their original strains (G0-CT and G0-CM) and G1 crossbreeds (♀CM × ♂CT and ♀CT × ♂CM). The larvae were reared in 50-L tanks (3 to 5 replications) with the density of 1,000 individuals/tank and fed with Moina and artificial feed (40% protein). After 40 days of rearing, the fish grew differently among crosses (P<0.05). In which, the two best-growth groups included CM×CT crossbreeds (body weight of 1,114 mg and length of 4.55 cm) and pure crossbred line CTCM (1,050 mg and 4.51cm, respectively). The CTCM group was recorded the highest survival rate (37.8%) while G0-CT was the lowest (27.2%); however, the difference in survival was not significant (P>0.05). The performance of these crossbreeds should be investigated further at the grow-out stage to see whether crossbreeding between wild and cultured strains of bighead catfish may be used in practice to increase bighead catfish production.


2017 ◽  
Vol 4 (2) ◽  
pp. 63
Author(s):  
Azizah Mahary

Tepung kerang memiliki kandungan protein 2-3%, dan kalsium 30-40%, dengan besarnya persentasi kalsium yang dihasilkan dari tepung kerang tersebut maka diharapkan kebutuhan mineral yang dibutuhkan oleh ikan terpenuhi dan limbah yang dihasilkan pun dapat di kurangi. Penelitian ini bersifat eksperimental laboratoris menggunakan rangcangan percobaan Rancangan Acak lengkap (RAL) dengan 4 perlakuan dan 3 ulangan. Perlakuan yang diterapkan yaitu perbedaan konsentrasi penambahan tepung cangkang kerang darah 0% (P0) sebagai kontrol, 5% (P1), dan 10% (P2), 15% (P3). Hasil penelitian menunjukkan tidak adanya perbedaan nyata pemberian tepung cangkang kerang darah pada pakan benih ikan lele dimana  tingkat kelangsungan hidup yang tertinggi terdapat pada P2 (10%) sebesar 58%, pertambahan berat juga terdapat pada P2 sebesar 1,55 gr dan pertambahan panjang sebesar 1,82cm. Adanya pengaruh yang nyata terhadap pemberian pakan terdapat pada perlakuan P3 (15%) sebesar 101.88 % dimana Fhit (4.88) >Ftab (5%) sebesar 3.86 dan (1%) sebesar 6.99. Suhu dari awal hingga akhir penelitian berkisar antara 28-310C, dan untuk pH memiliki nilai kisaran antara 6,38 sampai 3,91. Nilai DO pada P0 sebesar 3,0-3,2; P1 sebesar 3,2-3,5; P2 sebesar 3,5-3,6; dan P3 sebesar 2,0-3,1. Nilai nitrat berkisar antara 0-40 dimana nilai yang tertinggi terdapat pada P1 sebesar 10-40, sedangkan nilai nitrit pada tiap perlakuan memiliki nilai yang sama yaitu 0-0,25.The shellfish has protein 2-3% and calcium 30-40%, with the large of calcium produced from the shellfish it is expected the required mineral of the fish need are met and the resulting waste can be reduced. The research was done experimental laboratory using a complete Randomized Design (RAL) experiment with 4 treatments and 3 replications. The treatment applied was the difference of concentration of flour shell starch 0% (P0) as control, 5% (P1), and 10% (P2), 15% (P3). The result showed that there was no significant difference of flour shell meal on catfish seed feed where the highest survival rate was found in P2 (10%) 58%, weight gain was also found in P2 1.55 gr and 1% , 82cm. There was a significant effect on feeding in P3 treatment (15%) of 101.88% where Fhit (4.88)> Ftab (5%) was 3.86 and (1%) was 6.99. The temperature from beginning to end of the study ranges from 28-310C, and for pH has a value range between 6.38 to 3.91. The DO value at P0 was 3.0-3.2; P1 of 3.2-3.5; P2 of 3.5-3.6; and P3 of 2.0-3.1. Nitrate value ranges from 0-40 where the highest value is in P1 was 10-40, while the nitrite value in each treatment has the same value that is 0-0.25.


Jurnal MIPA ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 160
Author(s):  
Aprelia Martina Tomasoa ◽  
Deidy Azhari

Laju pertumbuhan dan tingkat reproduksi yang tinggi merupakan karakteristik unggul yang dimiliki ikan nila sebagai komoditi budidaya. Tingkat reproduksi yang tinggi menyebabkan terjadinya pematangan gonad sebelum mencapai ukuran produksi dimana hal tersebut dapat merugikan pembudidaya, karena saat ikan mengalami matang gonad energi hasil asimilasi pakan sebagain besar akan dialokasikan untuk perkembangan gonad dan menghambat pertumbuhan somatik. Pemanfaatan senyawa aktif dari bahan alami biji pepaya dapat menjadi solusi untuk meningkatkan pertumbuhan ikan yang dibudidayakan sekaligus menjaga keamanan pangan dan konsumen. Penelitian ini bertujuan untuk mengetahui pemanfaatan tepung biji pepaya terhadap respons pertumbuhan dan tingkat kelangsungan hidup ikan nila. Ikan nila diberi perlakuan dengan lima dosis tepung biji pepaya berbeda (0, 1, 3, 5 dan 7 g/kg pakan) secara oral berdasarkan feeding rate 5% dengan tiga ulangan selama 30 hari pemeliharaan. Hasil penelitian menunjukkan dosis 5 g/kg meningkatkan pertumbuhan bobot tubuh tertinggi sebesar 547 g dibandingkan kontrol sebesar 406 g. Sejalan dengan pertumbuhan bobot tubuh, dosis 5 g/kg menghasilkan tingkat kelangsungan hidup ikan nila sebesar 100% dibandingkan kontrol sebesar 66%. Dari hasil yang diperoleh dapat disimpulkan bahwa tepung biji pepaya dengan dosis 5 g/kg pakan dapat meningkatkan pertumbuhan dan tingkat kelangsungan hidup ikan nila selama 30 hariHigh growth rate and high reproductive cycle are some economical triats on nile tilapia. This is a setback for nile tilapia culture because when the fish reach gonad maturity before reach market size, all the energy demand will flow to reproduction and can cause stunt growth. The utilization of natural compound from papaya seeds can be a solution to enhance growth of farmed nile tilapia and for consumer and food safety. This research aim to know how papaya seed powder can enhance growth and survival rate of nile tilapia. This research conducted into five groups of 5 papaya seeds powder dosage (0, 1, 3, 5 and 7 g/kg) that feed orally to the treatment fishes. Result showed the fishes feed with 5 g/kg papaya seed experienced highest growth performance 547 g compare to control which is 406 g. Same as growth performance, survival rate shown that group feed with 5 g/kg papaya seed had 100% survival rate compare with control which is 66% during treatment periods. Base on this result, we can make conclusion that fish feed with 5 g/kg of papaya seed have a better growth performance and survival rate compare with control group for 30 days treatment periods


2019 ◽  
Vol 6 (2) ◽  
pp. 345-352
Author(s):  
Shovon Sarker ◽  
Md Fazle Rohani ◽  
Md Shafiqur Rahman ◽  
Md Sazzad Hossain

The efficacy and suitability of dietary whole wheat flour supplementation was evaluated on the growth performance and survival of rohu (Labeo rohita). The study was conducted in 12 experimental aquaria at the Wet Laboratory, Department of Aquaculture, Bangladesh Agricultural University, Mymensingh. A total of 180 fingerlings of mean initial weight of 1.744±00 g were stocked at the same stocking density (268 fingerlings/m3). Four different treatments (T1, T2, T3 and T4) each with three replications were performed having different level of whole wheat flour such as 0% whole wheat flour (T1), 5% whole wheat flour (T2), 10% whole wheat flour (T3) and 15% whole wheat flour (T4). Feeds were supplied at 5% body weight twice daily in the morning at 9.00 am and in the afternoon at 5.00 pm throughout the study period. The rations were adjusted every week when new weights of the fish for various experimental aquariums were determined. At the end of the 63 days study period, the growth performance parameters such as mean final weight (g), weight gain (g), percent weight gain (%), specific growth rate (%/day) and the best feed utilization in terms of food conversion ratio were found highest at treatment 4 where fishes were fed with inclusion of 15% whole wheat flour and lowest was found at treatment 1 (fed with inclusion of 0% whole wheat flour). Water quality parameters were within the acceptable range and survival rate was found 100% in all treatment. Therefore, it can be concluded that treatment 4 (highest growth performance and survival rate of L. rohita with supplementation of 15% whole wheat flour containing diet) can be chosen by fish farmers for commercial culture of this species. Res. Agric., Livest. Fish.6(2): 345-352, August 2019


2021 ◽  
Vol 13 (Aquaculture) ◽  
pp. 37-43
Author(s):  
Quoc Viet Le ◽  
Van Khanh Ly ◽  
Thi My Han Duong ◽  
Nguyen Duy Khoa Tran ◽  
Tomonari Kotani ◽  
...  

This study is aimed to determine the optimal rotifer feeding density for larviculture of spotted scat fish (Scatophagus argus). The experiment was randomly set up in triplicate with 5 treatments including 5, 10, 15, 20 and 25 rotifers/mL. The fish larvae with the initial body length and depth at 2,343 ± 110 µm and 812 ± 85µm, respectively, were stocked in 250-L tanks at 10 larva/L of density and 25‰ of salinity. After 21 days of rearing, the results showed that the larval growth were at 243 – 330 µm/day of DLG and 5.50 – 6.70 %/day of SGRL; 131 –204 µm/day of DDG and 7.20 – 8.93 %/day of SGRD, but no significant difference in larval growth performance was recorded among treatments (p>0.05). However, the highest survival rate of fish larvae (35.4-48.1%) was recorded in the treatments fed 5 and 10 rotifers/mL and was significantly higher than other treatments (p<0.05). The data demonstrated that spotted scat larvae fed effectively across as wide range of rotifer densities and the range at 5-10 rotifers/mL were suggested for the husbandry practices.


1988 ◽  
Vol 60 (6) ◽  
pp. 492-499 ◽  
Author(s):  
L. D. Young ◽  
G. E. Dickerson

Booroola Merino (B, n= 18) and Finnsheep (F, n =31) rams were mated to F ewes and C3 ewes (1/2 Columbia, 1/4 Suffolk, 1/4 Hampshire). Progeny of these matings were evaluated for performance traits including ewe reproduction through 3 years of age. Averaged over dam breeds, there was no significant difference between B and F sires for conception rate (CR), litter size (LS) at birth or weaning or for lamb mortality to weaning. The difference among sire breeds was not large or significant for birth weight but F sired lambs were significantly heavier than B sired lambs at 63 and 147 days of age. Relative to F sired lambs, B sired lambs had a higher dressing percentage and less fat at the 12th rib but equal estimated percentage kidney fat. A significantly smaller percentage of B-C3 than F, F-C3 or B-F ewe lambs reached puberty by the end of their first breeding season. Ovulation rate at first mating was higher but embryo survival rate tended to be lower for B sired ewes than for F sired ewes. At 2 years of age, B sired ewes produced about 1 kg more wool than F sired ewes. With the exception of the very poor CR of B-C3 ewes at first parity, the differences between the four ewe genotypes were not large or significant for CR at first, second and third parity. The difference between B and F sired ewes in LS at birth was not significant at first parity but B sired ewes were more prolific at second and third parities. However, differences in lamb mortality reduced, and in some cases removed, the differences in LS by weaning time. Relative use of these breeds in commercial U.S. production schemes is discussed.


2020 ◽  
Vol 19 (05) ◽  
pp. 65-70
Author(s):  
Nhan T. Dinh

This trial aimed to evaluate effects of stocking densities of 1-5 fish/m2 on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) in earthen ponds. Fish with an initial length of 90.7 ± 0.1 mm and weight of 20.8 ± 0.1 g/fish and ponds with 600 m2 each and 1.5 m depth were used for this study. Experiment was designed with three treatments, including different stocking densities of 1, 3 and 5 fish/m2. The fish was fed with pellete feed containing 43 - 44% crude protein. Water quality parameters including temperature, dissolved oxygen, pH, salinity, transparency and ammonia concentration were measured once a week. Fish were sampled every 30-day intervals for length and weight measurement then for their growth estimation. Costs were recorded for economic efficiency estimation. Results showed that the water quality parameters were in suitable ranges for growth and development of Asian seabass. The final average length and weight of density 1 fish/m2 was significantly higher than those at 3 and 5 fish/m2 (P < 0.05). However, there was no significant difference on the fish growth in terms of daily length and weight gain, as well as survival rate and feed conversion ratio between different stocking densities. Asian seabass culture at 3 and 5 fish/m2 resulted in a higher profit compared to at 1 fish/m2. The highest economic efficiency in terms of area pond was showed at 5 fish/m2 treatment.


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