scholarly journals Effects of Stocking Density on Growth and Production Performance of Indigenous Stinging Catfish, Heteropneustes fossilis (Bloch)

2013 ◽  
Vol 2 (2) ◽  
pp. 9-14 ◽  
Author(s):  
AHM Kohinoor ◽  
MM Khan ◽  
S Yeasmine ◽  
P Mandol ◽  
MS Islam
Keyword(s):  
Crude Protein ◽  
Stocking Density ◽  
Production Performance ◽  
Heteropneustes Fossilis ◽  
Earthen Ponds ◽  
Pelleted Feed ◽  
The Mean ◽  
On Farm

An on-farm experiment was undertaken in nine earthen ponds to evaluate the growth and production potentials of stinging catfish shing, Heteropneustes fossilis for the period of six months from March to August 2010. Three stocking densities such as 1,25,000 (T1), 1,87,500 (T2) and 2,50,000 ha-1 (T3) were tested with three replications each. Fish were fed with commercial pelleted feed containing 35% crude protein. After six months rearing, the mean harvesting weights of shing were 69.42±6.20, 58.74±3.85 and 49.50±4.52g in T1, T2 and T3, respectively. Significant (P<0.05) highest mean harvesting weight was found in T1. The best survival was found in T1 (87%) among the treatments. The calculated mean production of shing (H. fossilis) in three treatments such as T1, T2 and T3 were 7549±52, 9031±71 and 8786±60 kg ha-1, respectively, which were significantly different (p<0.05) from each other. DOI: http://dx.doi.org/10.3329/ijarit.v2i2.14009 Int. J. Agril. Res. Innov. & Tech. 2 (2): 9-14 December, 2012

scholarly journals Production performance of stinging catfish (Heteropneustes fossilis, Bloch) in monoculture at two different locations

2021 ◽  
Vol 33 (1) ◽  
pp. 31-37
Author(s):  
MD. TAPON MAHMUD ◽  
M.A. SALAM ◽  
MD. SHAKHAWATE HOSSAIN ◽  
MD. JAHANGIR ALAM
Keyword(s):  
Water Depth ◽  
Environmental Conditions ◽  
Stocking Density ◽  
Production Performance ◽  
The Other ◽  
Heteropneustes Fossilis ◽  
Culture Experiment ◽  
On Farm

An on-farm mono culture experiment was conducted for a period of four months from May to September 2014 to compare the growth and production of stinging catfish, Heteropneustes fossilis, at two different environmental conditions. Two locations were one in Gazipur Sadar (AEZ 28)and the other in Narsingdi Sadar (AEZ 9).At each location, there were five ponds of almost similar size and water depth. The stocking density was 500 fry per decimal for each location. Pre-stocking and post-stocking management were similar in both locations. There were considerable variations in most of the water and soil qualities between two locations. After four months of rearing, significantlyhigher (p<0.05) mean harvesting weight of H. fossilis (48.10±7.12 g) was observed in Narsingdi, as compared to that of Gazipur (23.18± 6.24 g).

scholarly journals Water quality, growth and production performance of stinging catfish, Heteropneustes fossilis (Bloch) in cemented tanks with two different stocking densities

2019 ◽  
Vol 47 (1) ◽  
pp. 107-119
Author(s):  
Dulon Roy ◽  
Abdullah Al Masud ◽  
Pritam Kumar Saha ◽  
MM Kutubuddin ◽  
Md Muzahidul Islam
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Survival Rate ◽  
Stocking Density ◽  
Culture Technique ◽  
Production Performance ◽  
Heteropneustes Fossilis ◽  
Tank Culture ◽  
Significant Difference ◽  
T1 And T2

Attempt has been taken to develop intensive tank culture technique providing natural environment for Stinging catfish (Heteropneustes fossilis) inside tank to increase survival rate as well as production. The experiment was conducted for a period of 150 days in two tanks (T1 and T2) of 300 m2. Fish fries with a mean weight and length ranged from 1.02 to 2.2 g and 2.7 to 3.5 cm were stocked in T1 and T2, respectively. Stocking density of fingerlings were 1, 25,000 and 1, 50,000 per Ha in T1 and T2, respectively. Commercial pelleted feed was supplied to tank reared fish twice daily at a rate of 3-10% of body weight per day and later feeding rate was adjusted based on body weight by sampling. Important water quality parameters (temperature, DO, pH, transparency, ammonia and nitrate) were recorded weekly throughout the culture period. Survival rate was 87% and 84% in T1 and T2, respectively. Mean final weight were 41.73 ± 2.09g and 40.6 ± 0.90 g in T1 and T2, respectively. Length-weight relationship indicates that the growth rate was always higher in T1 followed by T2. Results showed that net yield was relatively higher in T2 (5115.35 ± 113.13 Kg/ha) than T1 (4537.12 ± 227.4 Kg/ha). In case of production, there was significant difference (p < 0.05) between two treatments. This experiment demonstrated the potential of H. fossilis production through new technique of tank culture system. However, more research is needed using local feed ingredients with higher stocking density. Bangladesh J. Zool. 47(1): 107-119, 2019

scholarly journals Influence of stocking density on the culture potential of endangered riverine catfish Rita rita (Hamilton, 1822) in raceway

2018 ◽  
Vol 65 (4) ◽  
Author(s):  
Muhammad Forhad Alin ◽  
MD.Rafiqul Islam Sarder ◽  
Mohammad Matiur Rahman ◽  
MD. Fazlul Awal Mollah
Keyword(s):  
Crude Protein ◽  
Growth Parameters ◽  
Relative Weight ◽  
Stocking Density ◽  
Relative Length ◽  
Quality Parameters ◽  
Supplemental Feed ◽  
The Mean ◽  
Length Gain ◽  
Suitable Environment

Endangered catfish Rita rita were reared in a cemented raceway to observe the culture potentiality at three different stocking densities (4, 8 and 16 juveniles/m 3) under the three treatments (T1, T2 and T3, respectively) with three replications each. The mean initial length and weight of Rita juveniles were 20.15±1.51 cm and 100.26±6.57 g, respectively. The fish were reared by providing clean poultry viscera (containing 48.56% crude protein) at 3% of biomass once a day. The water quality parameters were measured daily and found them within suitable ranges. The growth parameters such as final mean total length, relative length gain, mean body weight, relative weight gain, SGR and condition factor were significantly (p&lt;0.5) higher in T1 compared to those of T2 and T3. The survival rate was 100% in all the treatments, and the fish production was significantly (p&lt;0.5) higher in T3 (8.38±0.04 kg/m 3 and 8380.40±4.05 kg/ha) than those of T2 (4.49±0.03 kg/m 3 and 4493.00±3.22 kg/ha) and T1 (2.36±0.02 kg/m 3 and 2362.00±2.00 kg/ha). Though the growth performance of R. rita was significantly influenced by the lowest stocking density but the production findings suggest that this species can be reared at the minimum density of 16 juveniles/m 3 in cemented raceway with suitable environment and adequate supplemental feed.

Growth and survival response of Penaeus stylirostris (Stimpson) to fertilization, pelleted feed and stocking density in earthen ponds

1993 ◽  
Vol 24 (1) ◽  
pp. 57-69 ◽  
Author(s):  
A. HERNANDEZ-LLAMAS ◽  
J. L. HERNANDEZ-LIZARDI ◽  
M. GONZALEZ-GARIBAY ◽  
F. J. MAGALLON-BARAJAS
Keyword(s):  
Stocking Density ◽  
Growth And Survival ◽  
Earthen Ponds ◽  
Pelleted Feed

Seed production and grow-out of climbing perch (Anabas testudineus) in Vietnam.

2020 ◽  
Author(s):  
Van Khanh Pham
Keyword(s):  
Crude Protein ◽  
Stocking Density ◽  
Paddy Rice ◽  
Natural Food ◽  
Anabas Testudineus ◽  
Female Ratio ◽  
Climbing Perch ◽  
Earthen Ponds ◽  
Rice Fish ◽  
Commercial Feeds

Abstract Broodfish conditioning of climbing perch (Anabas testudineus) is conducted in earthen ponds with a density of 2-4 kg m-2, at a 1:1 male to female ratio. Homemade or commercial feeds containing 22-25% crude protein are given as feed for the broodfish. To induce spawning, HCG and LH-RHa are used. Nursing from fry to fingerlings is done in earthen ponds with densities of 500-600 fry m-2. After nursing for 50-60 days, when the fish reach 4-5 cm length, they are harvested and stocked in grow-out systems. Fingerlings are stocked in grow-out ponds at a density of 20 fish m-2. Homemade and commercial feeds containing 22-25% crude protein are used to feed fish. After 6 months, the fish can reach the marketable size of 60-100 g per fish. The stocking density of fish in rice fields is lower, at 3 m-2. They feed on natural food found in the rice field. Homemade feeds are also added as supplementary feed. Rice-fish culture covers two continuous paddy rice cropping periods, or one paddy rice crop and one flooded crop.

scholarly journals Integrated cage-cum-pond culture system with walking catfish (Clarias batrachus) in cages and tilapia (Oreochromis niloticus) in open ponds

2017 ◽  
Vol 4 (3) ◽  
pp. 221-227
Author(s):  
Phanindra Sangma ◽  
Md Abdul Wahab ◽  
Shahroz Mahean Haque ◽  
Sanjib Kumar Mondal
Keyword(s):  
Crude Protein ◽  
Stocking Density ◽  
Environmental Benefits ◽  
Daily Weight Gain ◽  
Open Pond ◽  
A Value ◽  
Pond Culture ◽  
Significant Difference ◽  
Net Profit ◽  
Pelleted Feed

An experiment was conducted for a period of 97 days at the Fisheries Field Laboratory Complex, Bangladesh Agricultural University, Mymensingh to determine the potential of the cage-cum-pond culture of walking catfish, as well as to assess the economic and environmental benefits of this system. The experiment had two treatments in triplicate. One treatment comprised walking catfish in cage and tilapia in open pond, and the other treatment comprised both walking catfish and tilapia stocked together in open ponds. Ponds of both treatments were stocked with walking catfish and tilapia at a stocking density of 10,000 and 20,000 ha-1, respectively. Fishes in both treatments were fed with commercial pelleted feed (26% crude protein) twice daily at the rate of 10% body weight of walking catfish. All ponds were fertilized with urea and TSP at a rate of 50 kgha-1 bi-weekly. Survival of catfish was very low in both treatments ranging from 8.33 to 21.33%. Specific growth rate of catfish was significantly higher (P<0.021) in treatment-2 than in treatment-1 with a value of 2.42 and 1.69 g fish-1d-1, respectively. The net yield for catfish of treatment-1 and 2 were 49.67 and 43.45 kgha-1, respectively and there was no significant difference between the treatments. The survival rate of tilapia was 65.17 and 71.17% with daily weight gain of 2.31 and 2.22g fish-1 in treatment-1 and 2, respectively. Net yield were 817.00 and 790.63 kg ha-1, respectively and there were no significant difference in net yield of tilapia between treatments. Net profit obtained from integrated-cage-cum pond culture (Tk. 24,518 ha-197d-1) was higher than that of open pond (Tk 22,685 ha-197d-1).Res. Agric. Livest. Fish.4(3): 221-227, December 2017

CONCENTRADO PROTEICO OBTIDO DAS FOLHAS DE MANDIOCA (Manihot esculenta Crantz) DE TRÊS VARIEDADES COMERCIAIS.

2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Izabel Aparecida Soares ◽  
Mauro Sérgio Téo ◽  
Carlise DEBASTIANI ◽  
Suzymeire BARONI ◽  
Vanessa Silva RETUCI
Keyword(s):  
Manihot Esculenta ◽  
Crude Protein ◽  
Hydrocyanic Acid ◽  
Protein Concentrate ◽  
Manihot Esculenta Crantz ◽  
White Variety ◽  
Mean Values ◽  
Randomized Design ◽  
Significant Difference ◽  
The Mean

O trabalho teve por objetivo verificar diferenças entre rendimento do concentrado proteico e proteína bruta da folha da mandioca (Manihot esculenta Crantz), obtidos a partir de três variedades comerciais: branca, cascuda e vermelha. As manivas foram plantadas seguindo o delineamento experimental inteiramente casualizado com três repetições. Nas comparações entre as variedades, considerou coletas escalonadas pós-plantio, realizadas aos 12, 14 e 16 meses. O concentrado proteico foi obtido a partir da farinha das folhas inteiras e submetido ao método de termo - coagulação ácido e a proteína bruta pelo método padrão AOAC. Os dados foram submetidos a análise de variância e comparados pelo teste de Tukey - 5% de probabilidade. Os resultados não indicaram diferença significativa entre as médias obtidas para rendimento de concentrado proteico. Para a variável porcentagem de proteína bruta a variedade Branca foi a que apresentou maior valor, com média de 46,25%, seguida pela Cascuda e Vermelha, 44,52% e 37,30%, sucessivamente. Conclui-se que outros estudos devem avaliar condições que possam influenciar no teor de proteína foliar, como clima e solo, e, avaliar os níveis de ácido cianídrico de cada variedade, indicando qual das três é a melhor para a extração do concentrado proteico das folhas. Palavras chaves: Manihot esculenta Crantz, variedades comerciais, concentrado proteico, proteína bruta. ABSTRACT: The study aimed to assess the differences between income protein concentrate, crude protein of cassava leaf (Manihot esculenta Crantz), obtained from three commercial varieties: white, red and cascuda. The cuttings were planted following the completely randomized design with three replications. Comparisons between the varieties considered after planting staggered collections, held on 12, 14 and 16 months. The protein concentrate was obtained from flour of whole sheets and subjected to the term method - acid coagulation and crude protein by AOAC standard method. The data were submitted to ANOVA and Tukey test - 5% probability. The results indicated no significant difference between the mean values obtained for protein concentrate income. For the variable percentage of crude protein White variety showed the highest, with an average of 46.25%, followed by cascuda and Red, 44.52% and 37.30%, successively. We conclude that further studies should evaluate conditions that may affect the leaf protein content, such as climate and soil, and evaluate the hydrocyanic acid levels of each variety, indicating which of the three is the best for the extraction of protein concentrate from leaves Key words: Manihot esculenta Crantz, commercial varieties, protein concentrate, crude protein.

scholarly journals Impact of On-Farm Interventions against CTX-Resistant Escherichia coli on the Contamination of Carcasses before and during an Experimental Slaughter

Antibiotics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 228
Author(s):  
Michaela Projahn ◽  
Jana Sachsenroeder ◽  
Guido Correia-Carreira ◽  
Evelyne Becker ◽  
Annett Martin ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Broiler Chickens ◽  
Stocking Density ◽  
Resistant Bacteria ◽  
Control Group ◽  
Cross Contamination ◽  
High Prevalence ◽  
On Farm ◽  
The Impact ◽  
Slow Growing

Cefotaxime (CTX)-resistant Enterobacteriaceae are still an ongoing challenge in human and veterinary health. High prevalence of these resistant bacteria is detected in broiler chickens and the prevention of their dissemination along the production pyramid is of major concern. The impact of certain on-farm interventions on the external bacterial contamination of broiler chickens, as well as their influence on single processing steps and (cross-) contamination, have not yet been evaluated. Therefore, we investigated breast skin swab samples of broiler chickens before and during slaughter at an experimental slaughter facility. Broiler chickens were previously challenged with CTX-resistant Escherichia coli strains in a seeder-bird model and subjected to none (control group (CG)) or four different on-farm interventions: drinking water supplementation based on organic acids (DW), slow growing breed Rowan × Ranger (RR), reduced stocking density (25 kg/sqm) and competitive exclusion with Enterobacteriales strain IHIT36098(CE). Chickens of RR, 25 kg/sqm, and CE showed significant reductions of the external contamination compared to CG. The evaluation of a visual scoring system indicated that wet and dirty broiler chickens are more likely a vehicle for the dissemination of CTX-resistant and total Enterobacteriaceae into the slaughterhouses and contribute to higher rates of (cross-) contamination during processing.

scholarly journals Heat Stress and Goat Welfare: Adaptation and Production Considerations

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1021
Author(s):  
Veerasamy Sejian ◽  
Mullakkalparambil V. Silpa ◽  
Mini R. Reshma Nair ◽  
Chinnasamy Devaraj ◽  
Govindan Krishnan ◽  
...  
Keyword(s):  
Heat Stress ◽  
Body Condition Score ◽  
Heat Exposure ◽  
Stocking Density ◽  
Production Performance ◽  
Farm Animals ◽  
Meat Production ◽  
Important Species ◽  
Tropical Regions ◽  
Tropical Climates

This review attempted to collate and synthesize information on goat welfare and production constraints during heat stress exposure. Among the farm animals, goats arguably are considered the best-suited animals to survive in tropical climates. Heat stress was found to negatively influence growth, milk and meat production and compromised the immune response, thereby significantly reducing goats’ welfare under extensive conditions and transportation. Although considered extremely adapted to tropical climates, their production can be compromised to cope with heat stress. Therefore, information on goat adaptation and production performance during heat exposure could help assess their welfare. Such information would be valuable as the farming communities are often struggling in their efforts to assess animal welfare, especially in tropical regions. Broadly three aspects must be considered to ensure appropriate welfare in goats, and these include (i) housing and environment; (ii) breeding and genetics and (iii) handling and transport. Apart from these, there are a few other negative welfare factors in goat rearing, which differ across the production system being followed. Such negative practices are predominant in extensive systems and include nutritional stress, limited supply of good quality water, climatic extremes, parasitic infestation and lameness, culminating in low production, reproduction and high mortality rates. Broadly two types of methodologies are available to assess welfare in goats in these systems: (i) animal-based measures include behavioral measurements, health and production records and disease symptoms; (ii) resources based and management-based measures include stocking density, manpower, housing conditions and health plans. Goat welfare could be assessed based on several indicators covering behavioral, physical, physiological and productive responses. The important indicators of goat welfare include agonistic behavior, vocalization, skin temperature, body condition score (BCS), hair coat conditions, rectal temperature, respiration rate, heart rate, sweating, reduced growth, reduced milk production and reduced reproductive efficiency. There are also different approaches available by which the welfare of goats could be assessed, such as naturalistic, functional and subjective approaches. Thus, assessing welfare in goats at every production stage is a prerequisite for ensuring appropriate production in this all-important species to guarantee optimum returns to the marginal and subsistence farmers.

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