scholarly journals Effectiveness of Chironomid Larvae in Compare to Other Fish Foods on Growth Parameters and Body Protein of Two Economically Important Fishes

2021 ◽  
Vol 36 (2) ◽  
pp. 147-155
Author(s):  
Susanta Nath ◽  
Shreya Samanta ◽  
Sudipta Das
Keyword(s):  
Growth Parameters ◽  
Low Cost ◽  
Average Daily Gain ◽  
Fish Diet ◽  
Fish Food ◽  
Body Protein ◽  
Global Food Security ◽  
Aquarium Fish ◽  
Nutritional Effect ◽  
Floating Type

With the increasing human population, the demand for healthy, nutritious but cheap food also increasing day by day. The product of aquaculture mainly fish is more efficient to improve global food security. Along with the seafood, the effort is going on for more production of freshwater fish. For that reason, proper growth and sufficient proximate principles in fish are essential with a low-cost but healthy fish diet. Trichogaster fasciata and, Heteropneustes fossilis were fed with fourth instar larvae of Chironomus striatipennis (F1), dry Tubifex (F2), and granular floating type aquarium fish food (F3) respectively to observe the nutritional effect of different fish meal. Fish fed with F1 showed effective food conversion ratio and specific growth rate in comparison to fish fed on F2 and F3 respectively. The average daily gain was 214.3 % and 47.61% respectively in two fish when fed with F1. Percent gain weight increased from 1.12 (7th day) to 15.03 (28th day) in T. fasciata and 1.497 (7th day) to 8.21 (28th day) in H. fossilis when fed on F1. The result also showed that the protein level was increased steadily in both fishes when fed with F1 in comparison to other foods. It may be concluded that live larvae of Chironomus striatipennis were more effective fish food than dry Tubifex and aquarium fish food. It is a natural organic fish food with a negligible wastage used for fish and keeps the culture medium clean and debris-free with an ecofriendly environment.

scholarly journals Viability of Biofertilizer Produced by an Indian Biodigester Prototype Applied to Sunflower Plants

2017 ◽  
Vol 9 (10) ◽  
pp. 253
Author(s):  
Luciano Fernandes Moura ◽  
Pedro Felipe Sousa Teixeira ◽  
Franklin Aragão Gondim ◽  
Francisco Holanda Nunes Junior ◽  
Rifandreo Monteiro Barbosa ◽  
...  
Keyword(s):  
Dry Matter ◽  
Energy Use ◽  
Polynomial Regression ◽  
Growth Parameters ◽  
Low Cost ◽  
Control Group ◽  
Initial Growth ◽  
Sunflower Crop ◽  
Number Of Leaves ◽  
Relative Chlorophyll Content

Biodigesters have been used to convert biomass into biogas and biofertilizers. This energy use has been important for the reduction of solid waste pollution in the environment. This work aims to analyse the viability of the use of pig biofertilizer produced by an Indian biodigester prototype, monitored by a data acquisition system. The biodigester used was an Indian prototype built on a low cost material that is easy to acquire (polyvinyl chloride-PVC). After the biofertilizer production, we tested its efficiency and viability under conditions of vegetation house in the cultivation of sunflower plants. The experimental design was completely randomized in a factorial arrangement with 4 concentrations of biofertilizer (0, 40, 80 and 120 kg N ha-1) × 4 harvest periods (14, 21, 25 and 29 days after sowing). We evaluated biometric and vigor parameters by measurements of stem diameter, height of the aerial part, number of leaves and production of fresh and dry matter of roots, aerial and total parts, as well as the relative chlorophyll content. We performed the experiment with five repetitions using two plants each and we submitted the data to analysis of variance (ANOVA) and polynomial regression using the statistical software Sisvar 5.4. The functional Indian biodigester prototype produced a biofertilizer of excellent quality and viability as a biofertilizer for the initial growth of sunflower plants. The biofertilizer served as a nutritional source in the sunflower crop, since it provided increases in all the growth parameters analyzed in relation to the control group (plants in the absence of biofertilizer), especially in the concentration of 120 kg N ha-1.

scholarly journals Internet of Things based Wireless Plant Sensor for Smart Farming

2018 ◽  
Vol 10 (2) ◽  
pp. 456 ◽  
Author(s):  
Monica Subashini M ◽  
Sreethul Das ◽  
Soumil Heble ◽  
Utkarsh Raj ◽  
R Karthik
Keyword(s):  
Growth Parameters ◽  
Low Cost ◽  
Weather Data ◽  
Sensors And Actuators ◽  
Cost System ◽  
Internet Server ◽  
Tier System ◽  
Smart Farming ◽  
Avr Microcontroller ◽  
Data Acquisition And Processing

<p>About 10% of the world’s workforce is directly dependent on agriculture for income and about 99% of food consumed by humans comes from farming. Agriculture is highly climate dependent and with global warming and rapidly changing weather it has become necessary to closely monitor the environment of growing crops for maximizing output as well as increasing food security while minimizing resource usage. In this study, we developed a low cost system which will monitor the temperature, humidity, light intensity and soil moisture of crops and send it to an online server for storage and analysis, based on this data the system can control actuators to control the growth parameters. The three tier system architecture consists of sensors and actuators on the lower level followed by an 8-bit AVR microcontroller which is used for data acquisition and processing topped by an ESP8266 Wi-Fi module which communicates with the internet server. The system uses relay to control actuators such as pumps to irrigate the fields; online weather data is used to optimize the irrigation cycles. The prototyped system was subject to several tests, the experimental results express the systems reliability and accuracy which accentuate its feasibility in real-world applications.</p>

Temporary lysine restriction in newly weaned pigs does not affect carcass and loin quality at slaughter

2020 ◽  
Vol 100 (2) ◽  
pp. 368-380
Author(s):  
Adam D. Totafurno ◽  
Lee-Anne Huber ◽  
Wilfredo D. Mansilla ◽  
Cornelis F.M. de Lange ◽  
Ira B. Mandell
Keyword(s):  
Protein Concentration ◽  
Recovery Period ◽  
Average Daily Gain ◽  
Whole Body ◽  
Feed Ratio ◽  
Weaned Pigs ◽  
Body Protein ◽  
Protein Deposition ◽  
Daily Gain ◽  
Grower Diet

Two hundred and forty weaned pigs [initial body weight (BW) 7.2 ± 0.07 kg] were allocated to three diets (eight pens per treatment, 10 pigs per pen) to determine the effects of a temporary lysine (Lys) restriction on subsequent growth, body composition, as well as carcass and loin quality at slaughter. For a 3 wk restriction period, pigs were fed diets that were 110% (control), 20% (Lys20), or 40% (Lys40) below estimated Lys requirements. Thereafter, all pigs were fed a common grower diet containing 120% of the estimated Lys requirement for 6 wk (recovery period) and commercial diets until slaughter at ∼125 kg BW. During the restriction period, average daily gain, gain-to-feed ratio, and whole body protein deposition decreased (linear; P < 0.01), while whole body lipid deposition increased (linear; P < 0.001) with decreased dietary Lys concentrations. At the end of the recovery period, there were no differences in BW, although whole body protein concentration tended to decrease and lipid concentration tended to increase (linear; P = 0.07 and 0.06, respectively) with decreased dietary Lys concentrations. At ∼125 kg, there were no differences in BW, chemical composition, or carcass and loin quality. Compensatory growth was achieved by ∼125 kg BW after a 3 wk Lys restriction for newly weaned pigs without negatively impacting carcass and loin quality.

scholarly journals Effect of Plasma Activated Water Foliar Application on Selected Growth Parameters of Maize (Zea mays L.)

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3545
Author(s):  
Petr Škarpa ◽  
Daniel Klofáč ◽  
František Krčma ◽  
Jana Šimečková ◽  
Zdenka Kozáková
Keyword(s):  
Aboveground Biomass ◽  
Foliar Application ◽  
Growth Parameters ◽  
Low Cost ◽  
Co2 Assimilation ◽  
Plant Production ◽  
Chlorophyll Fluorescence Parameters ◽  
Chlorophyll Contents ◽  
Growth Optimization ◽  
Plasma Activated Water

Utilization of plasma activated water (PAW) for plant growing is mainly connected with the treatment of seeds and subsequent stimulation of their germination. A potential of PAW is its relatively simple and low-cost preparation that calls for studying its wider application in plant production. For this purpose, a pot experiment was realized in order to prove effects of the foliar PAW application on maize growth. The stepped PAW foliar application, carried out in 7-day intervals, led to provable decrease of chlorophyll contents in leaves compared to the distilled water application. The PAW application significantly increased root electrical capacitance, but it had no provable effect on weight of the aboveground biomass. Chlorophyll fluorescence parameters expressing the CO2 assimilation rate and variable fluorescence of dark-adapted leaves were provably decreased by PAW, but quantum yield of photosystem II electron transport was not influenced. A provably higher amount of nitrogen was detected in dry matter of plants treated by PAW, but contents of other macro- and micro-nutrients in the aboveground biomass of maize were not affected. Results of this pilot verification of the PAW application have shown a potential for plant growth optimization and possibility for its further utilization, especially in combination with liquid fertilizers.

Growth and processing of heteroepitaxial 3C-SiC films for electronic devices applications

2012 ◽  
Vol 1433 ◽  
Author(s):  
A. Severino ◽  
M. Mauceri ◽  
R. Anzalone ◽  
A. Canino ◽  
N. Piluso ◽  
...  
Keyword(s):  
Growth Parameters ◽  
Low Cost ◽  
Electronic Devices ◽  
Young Modulus ◽  
Interesting Property ◽  
Large Area ◽  
Si Substrates ◽  
Application Fields ◽  
Sic Films

ABSTRACT3C-SiC is very attractive due the chance to be grown on large-area, low-cost Si substrates. Moreover, 3C-SiC has higher channel electron mobility with respect to 4H-SiC, interesting property in MOSFET applications. Other application fields where 3C-SiC can play a significant role are solar cells and MEMS-based sensors. In this work, we present a general overview of 3C-SiC growth on Si substrate. The influence of growth parameters, such as the growth rate, on the crystal quality of 3C-SiC films is discussed. The main issue for 3C-SiC development is the reduction of the stacking fault density, which shows an exponential decreasing trend with the film thickness tending to a saturation value of about 1000 cm-1. Some aspect of processing will be also faced with the realization of cantilever for Young modulus calculations and the implantation of Al ions for the study of damaging and recovery of the 3C-SiC crystal.

GROWTH AND ACTH RESPONSES TO COLD STRESS OF YOUNG PIGS FED AD LIBITUM

1976 ◽  
Vol 56 (3) ◽  
pp. 365-371 ◽  
Author(s):  
D. E. BROWN ◽  
R. R. HACKER ◽  
G. J. KING
Keyword(s):  
Body Weight ◽  
Average Daily Gain ◽  
Seminal Vesicles ◽  
Feed Consumption ◽  
Plasma Acth ◽  
Body Protein ◽  
Young Pigs ◽  
Ad Libitum ◽  
Free Body ◽  
Daily Gain

Twenty-four 6-wk-old pigs were housed in individual metabolism cages and exposed for 6 wk to either 2 C or 20 C with ad libitum feed and water. The pigs at 20 C and 2 C had an average daily gain (ADG) of 544 g and 343 g (P < 0.01), respectively. Feed consumption was similar for both treatments, with feed:gain ratios being significantly lower in the 20 C group during the 1st and 3rd 2-wk periods. Spleen and kidney weights were a larger percent of ingesta-free body weight in pigs housed at 2 C. The percent body weight of livers, thyroids, testicles, seminal vesicles and bulbo-urethral glands were not statistically different between 20 C and 2 C housed pigs. Body protein and ash were 5 and 1.3% lower in the 2 C pigs. Differences in plasma ACTH between treatments within day were significant. Consistently lower levels of plasma ACTH were obtained from pigs housed at 2 C.

Sugarcane tops as a substitute for sugarcane in high-concentrate diets for beef bulls

2017 ◽  
Vol 57 (3) ◽  
pp. 563 ◽  
Author(s):  
Julião R. L. Couto ◽  
Severino D. J. Villela ◽  
Mário H. F. Mourthé ◽  
Adalfredo R. Lobo-Jr ◽  
Roseli A. Santos ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Low Cost ◽  
Average Daily Gain ◽  
Bodyweight Gain ◽  
Production Costs ◽  
Feed Conversion ◽  
Gross Margin ◽  
Net Margin ◽  
Beef Bulls ◽  
Four Levels

Our objective was to evaluate the productive and economic performances of bulls fed increasing levels of sugarcane tops, as a substitute for sugarcane. Sixteen, 24-month-old, Nellore bulls (initial bodyweight = 360 ± 14.7 kg) were kept in a feedlot for 84 days, receiving a high-concentrate diet (80 : 20 concentrate : roughage ratio). Four levels of substitution were evaluated: T0 = no addition of sugarcane tops; T33 = 33% substitution; T66 = 66% substitution; and T100 = total substitution of sugarcane by sugarcane tops. Dry matter, organic matter, crude protein and neutral detergent fibre intake, bodyweight gain, feed conversion and feed efficiency were evaluated as productive performance parameters, and as economic indicators, total revenue, total operating expenses, gross margin, and net margin. No effect (P ≥ 0.66) of diet was found for the studied variables. Average values of total bodyweight gain, average daily gain, feed conversion, and feed efficiency were 102 ± 10.0 kg/animal, 1.2 ± 0.12 kg/day, 8.6 ± 0.72 and 0.12 ± 0.010, respectively. Unlike other treatments, the T100 net margin was positive, because of the lower cost of acquiring sugarcane tops compared with sugarcane. Partial or total substitution of sugarcane by sugarcane tops in high-concentrate diets did not affect performance of feedlot bulls, but total substitution reduced production costs, with positive net margin. We conclude that sugarcane tops can be utilised as a low-cost roughage source in diets for beef bulls.

scholarly journals IgE-Binding Aldolases From Artemia and Mysis Species Causing Respiratory Allergy to Aquarium Fish Food

2017 ◽  
Vol 27 (6) ◽  
pp. 391-393
Author(s):  
M Ceballos ◽  
C De Castro ◽  
M Fonseca Gabriel ◽  
I Postigo ◽  
J Martinez
Keyword(s):  
Respiratory Allergy ◽  
Fish Food ◽  
Aquarium Fish ◽  
Ige Binding

scholarly journals ESTIMACIÓN DE LOS PARÁMETROS DE CRECIMIENTO Y REPRODUCCIÓN DE LA SARDINA (Sardinella aurita) DEL SURESTE DE LA ISLA DE MARGARITA, VENEZUELA

2016 ◽  
Vol 37 (2) ◽  
Author(s):  
Alejandro Tagliafico ◽  
Leo Walter González ◽  
Nora Eslava
Keyword(s):  
Fisheries Management ◽  
Sexual Maturity ◽  
Growth Parameters ◽  
Low Cost ◽  
Growth Index ◽  
Fast Growth ◽  
Artisanal Fisheries ◽  
Sardinella Aurita ◽  
Strategic Resource

In Venezuela, the sardine (Sardinella aurita) is considered a strategic resource because it represents a supply of low-cost protein and supports the most important socio-economic artisanal fisheries of the country. Therefore, the objectives of this research were to estimate the sardine growth parameters and reproductive aspects, fundamental in its fisheries management and evaluation. 3960 individuals were collected of the commercial catches with the “chinchorro sardinero” from the southwest of Margarita’s, from January to December 2003. The asymptotic length (L∞=26 cm) and the coefficient of growth (K=1.1 year-1) were estimated with the routine ELEFAN I from the package “FiSAT”, indicating a growth index Ø’ of 2.87. The overall sexual proportion of female to male was 1.2:1.0. The most intensive reproductive seasons were observed between January-March and July-December, however a continuous spawning was observed along the year. Our results provide enough evidence to conclude that the resource still has fast growth and sustained reproduction. The sexual maturity length was estimated in 19.8 cm and we recommended that length-average in the catches in order to properly manage the resource.

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