scholarly journals Potential substrates for periphyton enhancement in Carp-SIS polyculture

Our Nature ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 8-16
Author(s):  
Sunila Rai ◽  
Kamala Gharti ◽  
Madhav Shrestha ◽  
Rahul Ranjan ◽  
James Diana ◽  
...  
Keyword(s):  
Rice Bran ◽  
Test Performance ◽  
Grass Carp ◽  
Field Trial ◽  
Experimental Period ◽  
Mustard Oil ◽  
Plastic Bottle ◽  
Mustard Oil Cake ◽  
Banana Leaves

A field trial was carried out to test performance of four locally available substrates (split bamboo, whole bamboo, banana midrib and plastic bottle) for periphyton enhancement in farmer's ponds at Seri and Nandapur in Nawalparasi district for 7 months. Six carp species were stocked at 15000 fish/hectare and SIS at unrecorded densities. Carp was fed with rice bran and mustard oil cake at 1.5% BW while grass carp was fed with grass and banana leaves at 50% BW. There was no significant effect of substrates on growth and production of carp. Combined NFY was 19% higher in plastic bottle ponds than control ponds, while NFY of SIS was 50% higher in banana midrib ponds than control and other substrate ponds. FCR was significantly better (P<0.05) in split bamboo ponds than control ponds. Banana midrib decayed fast and was replaced 3-4 times during experimental period while plastic bottles performed better in terms of production and profit.

scholarly journals Effect of Bamboo Substrate on Growth and Production of Carp and Small Indigenous Fish

Our Nature ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 38-48
Author(s):  
Rajan Poudel ◽  
Sunila Rai ◽  
Dilip K Jha ◽  
Ram Bhajan Mandal
Keyword(s):  
Rice Bran ◽  
Grass Carp ◽  
Field Trial ◽  
Growth And Yield ◽  
Mustard Oil ◽  
Gross Margin ◽  
Fish Yield ◽  
Mustard Oil Cake ◽  
Banana Leaves ◽  
Indigenous Fish Species

A field trial was conducted to examine effects of substrates on yield of carp and SIS at Sukranagar Village, Chitwan district for 210 days in farmer’s pond. The experiment was designed with four treatments: T1 (carp only), T2 (carp+SIS), T3 (carp+substrate) and T4 (carp+SIS+substrate) with four replicates. Ponds were stocked with fingerlings of six carp species at a rate of 20,000 fish/ha and two Small indigenous fish species at a rate of 50,000 fish/ha in 1:1 ratio. Prior to stocking of fish, split bamboo mats were fixed in substrate ponds covering 2% of pond surface area to enhance periphyton growth. Carp were fed with dough of rice bran and mustard oil cake (1:1) at the rate of 3% BW daily while Grass carp was fed with grass and banana leaves at 50% BW. Growth and yield of Rohu and Common carp, combined net fish yield and gross margin were found higher (p<0.05) in carp ponds with substrate.

scholarly journals Economic analysis of fish production using different feed types practiced in Dhanusha district, Nepal

2019 ◽  
Vol 2 (1) ◽  
pp. 252-264
Author(s):  
Pritee Subedi ◽  
Narayan Prasad Pandit ◽  
Naresh Kumar Mahato ◽  
Mahesh Karki ◽  
Anupam Uprety
Keyword(s):  
Economic Analysis ◽  
Rice Bran ◽  
Fish Meal ◽  
Mustard Oil ◽  
Variable Cost ◽  
Sufficient Information ◽  
Fish Production ◽  
Gross Margin ◽  
Rural Municipality ◽  
Mustard Oil Cake

A study on the economic analysis of fish production using different feed types practiced in Dhanusha district was conducted in 2018. Out of 600 fish farmers, sixty fish farmers(10%) from the Fish Superzone region i.e. Janakpur sub-metropolitan city, Bideh municipality, Sahidnagar municipality, Kamala municipality, Hanspur municipality, Janaknandani rural municipality and Aaurahi  rural municipality, selected using simple random sampling, were surveyed using semi-structured questionnaire. The study revealed that locally formulated mash feed was commonly used feed type in which rice bran and mustard oil cake (RB+MOC) was the principle feed ingredient. 55% of the farmers used rice bran and mustard oil cake (RB+MOC), 20% used rice bran, mustard oil cake and soybean (RB+MOC+SOB), 10% used rice bran, mustard oil cake and fish meal (RB+MOC+FM) and 15% farmers mineral and vitamin (RB+MOC+MIN/VIT) in their feed formulation. The productivity of the fish production in feed type RB+MOC+SOB (3.41±1.02) was significantly higher than other feed type.  The total variable cost per ha (5.23±2.11) was found significantly(p<0.05) higher in feed type RB+MOC+SOB. Similarly, gross margin (4.44±2.74) received by farmers of feed type RB+MOC+SOB was also significantly high(p<0.05). The Benefit: Cost (B:C) ratio of the study area was found to be 1.69, high being of feed type RB+MOC+SOB(1.84) compared to others. The feed type RB+MOC+SOB is seen as a economically profitable one in the study area because of the high productivity, profit and B:C ratio. High feed cost was the major problem followed by the unavailability of feed. Fish farming can be a profitable business in Dhanusha with large opportunity to increase the fish production with increasing protein sources in the feed used. Farmers should be provided sufficient information, trainings and be encouraged to incorporate the protein rich sources like soybean and fish meal in the feed prepared to increase the productivity and ultimately return.

scholarly journals Effect of Dedhuwa (Esomus danricus), Mara (Amblypharyngodon mola) and Pothi (Puntius sophore) on Carp Production in Chitwan, Nepal

Our Nature ◽  
1970 ◽  
Vol 9 (1) ◽  
pp. 112-118 ◽  
Author(s):  
M.C. Gupta ◽  
S. Rai
Keyword(s):  
Body Weight ◽  
Rice Bran ◽  
Labeo Rohita ◽  
Silver Carp ◽  
Bighead Carp ◽  
Mustard Oil ◽  
Total Production ◽  
Aristichthys Nobilis ◽  
Mustard Oil Cake ◽  
Puntius Sophore

In order to assess the effect of adding Dedhuwa (Esomus danricus), Mara (Amblyparyngodon mola) and Pothi (Puntius sophore) on Carp production, an experiment was carried out in farmers’ pond in Chitwan. The experiment included four treatments in triplicates: T1, (Carp: Silver carp, Hypophthalmychthys molitrix, Bighead carp, Aristichthys nobilis, Rohu, Labeo rohita and Mrigal, Cirrhinus mrigala), T2 (Carp+Dedhuwa), T3 (Carp+Mara), and T4 (Carp+Pothi). Fish were fed on dough of rice bran and mustard oil cake (1:1) at the rate of 3% of body weight. Results showed that Dedhuwa, Mara and Pothi did not differ significantly (P>0.05) in terms of production. Production of Silver carp and Bighead carp was found significantly higher (P<0.05) in T3 and T4 than control indicating no niche overlapping among these fish. Based on total production and profit T4 appeared to be best.DOI: http://dx.doi.org/10.3126/on.v9i1.5741

scholarly journals Effect Of Levels And Sources Of Protein On The Performance And Nutrient Digestibility In Black Bengal Goat

1970 ◽  
Vol 38 (1-2) ◽  
pp. 53-60
Author(s):  
MB Ullah ◽  
KMS Islam ◽  
MA Akbar ◽  
ABM Khaleduzzaman ◽  
MR Debi
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Live Weight ◽  
Experimental Period ◽  
Nutrient Digestibility ◽  
Protein Supplementation ◽  
Mustard Oil ◽  
Low Protein ◽  
Mustard Oil Cake ◽  
Black Bengal Goat

Sixteen castrated male Black Bengal goats (aged between 8 and 10 months and average live weight 9.16 kg) were used in a 2 × 2 factorial design to study the effect of protein levels and sources on growth and nutrient digestibility under intensive condition for 56 days. The sources of protein were mustard oil cake (MOC) and soybean meal (SBM). Level of protein in each sources were 22 (HP-high protein) and 16 (LP-low protein) percentage. The dietary treatments were (T1) MOC-HP, (T2) MOC-LP, (T3) SBM-HP and (T4) SBM-LP. Concentrate diets as well as dal grass was fed throughout the experimental period and last week considered for digestibility trial. Average daily live weight gain of goats was 42, 41, 43, and 52 g for the diets T1, T2, T3 and T4 respectively. The result showed no significant (P>0.05) variation between protein sources and their levels on growth performance. Intake of DM was 425, 389, 407 and 437 g/d which were 4.2, 3.8, 4.0 and 4.1 percent of their body weight for the diets T1, T2, T3 and T4 respectively. Intake of CP was 59, 46, 56 and 50 g/d respectively. The sources of protein did not influence the intake of CP (P>0.05), but their levels had (P<0.05) effect on it. Digestibility of DM was 62, 58, 69 and 68 percent respectively. OM digestibility (g/100g) was 67, 64, 71 and 73 for the diets T1, T2, T3 and T4 respectively. Digestibility (g/100g) of CP was 62, 60, 70 and 69 for the diets T1, T2, T3 and T4 respectively. Thus the result showed that the digestibility of DM, CP and OM was significantly higher for SBM than MOC but their levels varied insignificantly. Therefore low protein supplementation (16%) in a concentrate mixture containing mustard oil cake and/or soybean meal could be suggested for optimizing growth performance of Black Bengal Goat under intensive management system.DOI: http://dx.doi.org/10.3329/bjas.v38i1-2.9912BJAS 2009; 38(1-2): 53-60

scholarly journals Empirical models to correlate the basic physical and chemical indices of modified rice bran and mustard oil

2017 ◽  
Vol 20 (11) ◽  
pp. 2805-2816 ◽  
Author(s):  
D. R. Phebee Angeline ◽  
S. Rubalya Valantina ◽  
V. Mukesh Kumar
Keyword(s):  
Rice Bran ◽  
Empirical Models ◽  
Mustard Oil ◽  
Physical And Chemical

Rapid HIV testing with same-day results: a field trial in Uganda

1998 ◽  
Vol 9 (3) ◽  
pp. 134-138 ◽  
Author(s):  
William J Kassler ◽  
Mary Grace Alwano-Edyegu ◽  
Elizabeth Marum ◽  
Benon Biryahwaho ◽  
Peter Kataaha ◽  
...  
Keyword(s):  
Hiv Testing ◽  
Test Performance ◽  
Predictive Value ◽  
Field Trial ◽  
Time Frame ◽  
Clinic Visit ◽  
Post Test ◽  
Testing Algorithm ◽  
Aids Information ◽  
Hiv 1

Rapid, on-site HIV testing with same-day results may improve services and increase the number of clients who learn their serostatus in developing countries. To validate test performance under field conditions and assess the change in the proportion of clients who learn their serostatus, we conducted a field trial using the Capillus HIV-1/HIV-2 assay (Cambridge Diagnostics) at the AIDS Information Centre counselling and testing sites in Uganda. Compared to the standard 2-EIA testing algorithm, the sensitivity of Capillus was 99.6% (95% CI; 98.5%, 99.9%), the specificity was 98.8% (95% CI; 98.1%, 99.3%), the positive predictive value was 96.5% (95% CI; 94.5%, 97.8%), and the negative predictive value was 99.9% (95% CI; 99.5%, 100%). It took less than 5 min to perform a single test, and results were returned to clients in less than an hour, during which time clients were counselled. This resulted in a 27% increase in the proportion of clients who learned their serostatus and received counselling. We conclude that simple, rapid HIV tests can be performed accurately on-site within the time frame of a clinic visit, increasing the number of clients who learn their serostatus and receive post-test counselling.

scholarly journals Comparative Study On Nursing Of Different Strains Of Tilapia (Oreochromis niloticus) In Bangladesh

2016 ◽  
Vol 5 (2) ◽  
pp. 98-106
Author(s):  
MA Hossain ◽  
MJ Islam ◽  
MM Uddin ◽  
MM Hossain ◽  
M Kunda
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Survival Rate ◽  
Body Weight Gain ◽  
Stocking Density ◽  
Experimental Period ◽  
Mustard Oil ◽  
Feed Conversion ◽  
Different Strains ◽  
The Individual

This study was conducted to investigate and compare the growth performance of four Tilapia strains in hapa nursing with the aim to find out the best strain of tilapia. The research was conducted by four treatments with five replicates each. The tilapia fry were collected from, BFRI source from BFRI HQ, Mymensingh stocked in Treatment-1; unknown source from Hi-Tech Tilapia Hatchery Dagoanbhuiya, Feni in Treatment-2, Philipine strain from Green Field Tilapia Hatchery, Laxmipur in Treatment-3 and fry from Breeding Cohort, Sonar Bangla Hatchery, Bamna, Barguna in Treatment-4. The Individual stocking weight (g) of fry was average 0.01g. The fries were stocked in 12 hapa at same stocking density of 1200 fish/m2. Each of the hapa was 2m × 1m × 1m size and fixed in an earthen ponds. Supplementary feed with 31.29% of protein level consisting of rice bran (25%), mustard oil cake (15%), wheat flour (30%) and fish meal (30%) was given at the rate of 40% of their body weight per day manually, four times a day at the beginning of the experimental period and reduced to 25% of their body weight and continued up to harvesting period. The results showed that fry of Treatment-4 strain was the best strain and had significantly (p < 0.05) higher final mean body weight (FMBW), mean body weight gain (MBWG), specific growth rate (SGR) (9.75%), gross yield (GY) (2.13) and Net yield (NY) (2.12) than the Treatment-1 , Treatment-2 strains and Treatemnt-3 strain. Treatment-4 strain had the fastest growth rate, whereas the lowest performing strain was that from Treatment-2. We also analyzed survival rate of the fish from stocking to harvest, survival rate was highest in Treatment-4 strain (80%) where lowest is Treatment-3. Treatment-4 stain also showed the best feed conversion ratio (FCR) 1.62 than others. Considering the overall performance it can be concluded that tilapia strain collected from Breeding Cohort source is best among the four strains. However, further research may still be needed to compare more strains from different water body to evaluate the genetic potential for Tilapia.International Journal of Natural Sciences (2015), 5(2) 98-106

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