ESTUDO DA INFLUÊNCIA DA ADIÇÃO DE CAL E PELLET-FEED SOBRE A REATIVIDADE DO SMALL-COKE AO CO2

2019 ◽  
Author(s):  
João Ricardo Denicolo Braga ◽  
Iara Patricia Vieira de Oliveira ◽  
Lorena Cristina Amorim Moura ◽  
Guilherme Liziero Ruggio da Silva ◽  
Paulo Santos Assis ◽  
...  
Keyword(s):  
2010 ◽  
Author(s):  
Dengfeng Yan ◽  
Robert S. Wyer ◽  
Jaideep Sengupta
Keyword(s):  

2019 ◽  
Vol 47 (9) ◽  
pp. 991-997
Author(s):  
Fabiano Maia Linhares ◽  
Caio Cardoso Ferreira Victor ◽  
Leandro Rocha Lemos ◽  
Maurício Covcevich Bagatini
Keyword(s):  

Metallurgist ◽  
1959 ◽  
Vol 3 (3) ◽  
pp. 93-94
Author(s):  
V. V. Vinogradov
Keyword(s):  

2020 ◽  
Author(s):  
Yang Yi ◽  
Zong-wen Wu

Abstract In China, broodstock conditioning of grass carp (Ctenopharyngodon idella) is conducted in earthen ponds at a density of 2,250 - 3,000 kg ha-1 and at a male to female ratio of 1:1 or 1:1.25. Vegetation such as duckweed and rye grass and small amounts of farm-made or commercial feed are given. Nursing from fry to fingerlings (early nursing) is done in nursery ponds at a density of 1,500,000 - 2,250,000 fish ha-1 (150-225 m-2). After nursing for 20-30 days, the fish reach 3-4 cm in length and are released into fingerling nursery ponds for advanced nursing. Fingerlings are stocked in fingerling nursery ponds at a density of 3,250-4,000 fingerlings ha-1 (0.325-0.40 m-2). The main feed is pellet feed and grass. After 6 months of culture, the fish can reach 800 g. Then they are released into grow-out ponds or cages. Stocking rates for ponds are 1,650-2,000 fish ha-1 (0.165-0.20 m-2) and 50-80 fish m-2 for cages. Mixed feed is used as the main feed and grass is given as supplementary feed. The fish can reach 1.5-2.0 kg in 1 year and 3.5-5.0 kg in 2 years.


2021 ◽  
Vol 173 ◽  
pp. 107195
Author(s):  
Ruberlan Gomes Silva ◽  
José Maria Silva ◽  
Thiago Cesar Souza ◽  
Matheus Bianchetti ◽  
Lorena Guimarães ◽  
...  
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Author(s):  
Glenn Sykora

A typical South Florida citrus feed mill was studied by controls engineers to determine the benefits of modern controls. The peel bin, lime addition, dryer, and waste heat evaporator all showed considerable savings potential (2.5 year simple payback). With modern controls, the pellet feed output will be more consistent in quality while consuming less energy to produce. With total computer monitoring, safety for the operators will also be improved. Paper published with permission.


2021 ◽  
Vol 46 (1) ◽  
pp. 89
Author(s):  
Elrifadah - Elrifadah

This study was aim to determine the different pellet feed source on the growth and survival rate of Nile tilapia. The purpose of this research was to provide information of the best feed for the growth and survival rate of Nile tilapia.Completely Randomized Design, with 3 treatments ( treatment A: community-made pellet, treatment B: commercial pellet PF500; treatment C: commercial pellet 885) and 3 replicate was used for the research. Nile tilapia with 3-4 cm length placed in nine aquariums with stocking density 6 fishes/L. Feeding treatment given twice a day at level 3 %/ body weight.  The parameters observed include growth rates, survival, and feed conversion. Supporting data was observed for water quality. Observation was carried out for 30 days.The results showed that the average weight, in treatment A was 101,66 g, treatment B was 118.33 g, and treatment C was 128.33 g. The average yield of relative growth in treatment A was 111.44%, treatment B was 134.23%, and treatment C was 135.76%. Treatment C shows the highest value, then treatment B and treatment A. The average yield of feed conversion, treatment A was 1.11; treatment B 3.21; and treatment C was 3.37. Survival rate of all treatments was 100%.


2019 ◽  
Vol 66 (3) ◽  
Author(s):  
B. Johnson ◽  
A.K. Abdul Nazar ◽  
R. Jayakumar ◽  
R. Jayakumar ◽  
G. Tamilmani ◽  
...  

The ICAR-Central Marine Fisheries Research Institute (ICAR-CMFRI) is the pioneer in developing the technology for cage fish farming in India . Cobia (Rachycentron canadum) grows relatively fast in cages and is very much suited for carrying out small scale mariculture to meet the alternate livelihood needs of fisher-folk. Mandapam Regional Centre of ICAR-CMFRI has developed the technology for breeding, seed production and farming of cobia in cages and organised training, and frontline/participatory demonstration programmes which have aided in creating awareness about the techno-economic viability of cage farming among the fisherfolk in Ramanathapuram District, Tamil Nadu. A survey was taken up among a sample of 75 members of fisher self help groups (SHGs) who had adopted cage farming of cobia, inorder to assess their perception and attributes about the technology as well as the constraints faced by them. The study found that fast growth rate of cobia, shorter culture period, good farm gate price, high market demand, ease of farming near the seashore and seed availability were the important attributes which attracted the fishermen groups to take up the farming. The innovations introduced by the fishers in cage farming technology were also documented. Majority of the fishers stated, non-availability of seed during peak stocking season, high cost of pellet feed, fluctuating cost of low value fishes which are used as feed for cobia and poaching as major constraints in cage farming.


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