scholarly journals Effect of Diet on the Growth Performance, Feed Conversion, and Nutrient Content of the House Cricket

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
M Bawa ◽  
S Songsermpong ◽  
C Kaewtapee ◽  
W Chanput
Keyword(s):  
Protein Content ◽  
Growth Parameters ◽  
Nutrient Content ◽  
Nutritional Composition ◽  
Acheta Domesticus ◽  
Protein Diet ◽  
Vitamin B ◽  
Feed Conversion ◽  
Formulated Diets ◽  
Pumpkin Powder

Abstract The house crickets, Acheta domesticus, are sustainable and nutritious future sources of food, due to their nutritional benefits, particular high protein content and potential in solving global malnutrition. Different diets, particularly protein content, can influence the growth and nutritional value of crickets. The aim of this present study was to evaluate the effects of commercial diets and other formulated diets on the nutritional composition and growth parameters of the house crickets, being a major challenge to cricket’s farmers in Thailand. Feed conversion ratio were 1.50, 1.50, and 1.51 for fed crickets on a blend of 22% protein and dry pulp pumpkin powder, fed 22% protein plus fresh pumpkin pulp, and fed 22% protein alone, indicated that these groups are high feed convertors and represented the quality of these diets compared to 1.73 and 1.81 for fed crickets on a blend of 22% and 16% protein, and those fed on 16% protein alone. Fed crickets on 22% protein had the highest amount of protein (76%), the lowest (48%) in those fed on 22% protein and fresh pumpkin pulp inclusion. The group on 22% protein diet also had the highest amount of phosphorus, potassium, calcium, and sodium. Fed 22% protein and either dry pulp pumpkin powder or fresh pumpkin pulp condition have shown improvement in vitamin B content. Crickets can effectively be produced on 22% protein diet to improve yield output and several minerals such as phosphorus, potassium, calcium, and sodium. In contrast, the supplementation of 22% protein diet with pumpkin (Cucurbita maxima) will improve vitamin B content.

scholarly journals Performance of Broilers Fed Low Protein Diets with Lysine and Methionine Supplements

2006 ◽  
Vol 6 (1) ◽  
pp. 47-59
Author(s):  
Nancy Montilla ◽  
◽  
Lolito Bestil ◽  
Sulpecio Bantugan ◽  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Protein Content ◽  
High Protein Diet ◽  
Protein Diet ◽  
Amino Acid Supplementation ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Acid Supplementation ◽  
Low Protein

A feeding trial with broilers was conducted to evaluate the effects of amino acids (lysine and methionine) supplementation of diets low in protein content on the voluntary intake, feed conversion efficiency, broiler performance, and cost and return of broiler production. Results showed cumulative voluntary feed intake was not significantly affected by lowering the protein content of the diet. Cumulative weight gain of broilers was lower with diet when supplemented iwht lysine and methionine to meet requirements. Birds fed with diets low in protein has less efficient feed converstion, but became comparable with those receiveing diets high in protein when supplemented with amino acids. Feed cost per kilogram broiler produced was not significantly affected by diets used in the study, although the low-protien diet with amino acid supplement had the lowest values. In terms of return above feed and chick cost, broilers fed with high-protein diet had the greatest value, but not significantly different from birds fed with low-protien diet with amino acid supplementation which gave about P10 per bird higher returns than those fed low-protein diet without amino acid supplementation.

scholarly journals Impact of some local organic by-products on Acheta domesticus growth and meal production

2021 ◽  
pp. 1-10
Author(s):  
C. Jucker ◽  
S. Belluco ◽  
S. Bellezza Oddon ◽  
A. Ricci ◽  
L. Bonizzi ◽  
...  
Keyword(s):  
Fruits And Vegetables ◽  
Growth Parameters ◽  
Control Diet ◽  
Nutritional Composition ◽  
Acheta Domesticus ◽  
Common Source ◽  
Alternative Protein ◽  
Major Interest ◽  
Maize Grain ◽  
By Products

The house cricket Acheta domesticus is one of the species of major interest as alternative protein source for humans in the recent research of sustainable and nutritious sources of food. However, grain feeds, feed for poultry and soybean still represent common source of feeds for the insect industry. The aim of this study was to evaluate the influence of some agro-food by-products on the growth parameters of the crickets and the nutritional composition of the final cricket meal. Our study included five by-products (maize grain distiller, fruits and vegetables, grape marc, and two brewery’s wastes), while hen feed was used as a control diet. Substrates were analysed for their microbiological contamination prior to be provided to crickets. No Listeria and Salmonella were detected, but high microbial counts were observed. Crickets grown on the given by-products showed significant differences on the insect’s weight starting from the third week. High mortality was observed on all substrates, except on maize distiller and the control diet. The final cricket meal showed a similar protein content (66-68% as is), while the lipid content was higher in the meal from cricket reared on maize distiller (22% as is). Finally, microbiological and chemical analyses on the cricket meals did not show safety concerns for the consumers. The by-products studied, except maize grain distiller, did not support an optimal cricket rearing, but more studies are necessary to identify a mix-formulation meeting the cricket nutritional requirements.

scholarly journals Effects of feeds on growth performance and nutritional composition of Cirrhinus mrigala fingerlings

2015 ◽  
Vol 24 (2) ◽  
pp. 153-159
Author(s):  
Polash Chandra Dash ◽  
Nahid Sultana ◽  
Khandker Nesar Ahmed ◽  
Mahmuda Begum ◽  
Shankar Chandra Mandal ◽  
...  
Keyword(s):  
Specific Growth ◽  
Condition Factor ◽  
Growth Parameters ◽  
Average Daily Gain ◽  
Nutritional Composition ◽  
Feed Conversion ◽  
Cirrhinus Mrigala ◽  
Fish Flesh ◽  
Daily Gain

Effects of four different feeds on growth and nutrient composition of mrigal fingerlings (Cirrhinus mrigala) were evaluated. After 30 days of rearing growth parameters and quality of fish flesh were examined. During the rearing period, the change in growth and feed utilization by the mrigal fed with feeds have been assessed as condition factor (K), average daily gain (ADG), specific growth rate (SGR) and feed conversion ratio (FCR).The highest FCR (6.23 ± 0.59) was found in the treatment 4 while the lowest (3.08 ± 0.10) in the treatment 1. The condition factor was highest (0.89 ± 0.01) in treatment 1 while the lowest (0.81 ± 0.05) in the treatment 4. After 30 days of rearing, moisture content of mrigal in different treatments was 77.2, 78.41, 76.99 and 77.86% in treatments 1, 2, 3 and 4, respectively. Protein was 17.15, 15.89, 16.90 and 14.76% in treatments 1, 2, 3 and 4, respectively. Lipid was 2.07, 2.22, 2.25 and 2.85% and ash content was 3.58, 3.48, 3.88 and 4.53% in four (1, 2, 3 and 4) treatments, respectively. Dhaka Univ. J. Biol. Sci. 24(2): 153-159, 2015 (July)

scholarly journals Changes in the nutritional composition of okra fruit and seed during early development

2021 ◽  
pp. 67-79
Author(s):  
Tito Cachero ◽  
Beatriz Belonias
Keyword(s):  
Protein Content ◽  
Nutrient Content ◽  
Nutritional Composition ◽  
Fiber Content ◽  
Crude Fiber ◽  
Flower Opening ◽  
Crude Fiber Content ◽  
Standard Procedures ◽  
Fruit Maturity ◽  
Powdered Form

This study investigated the changes in nutrient content of the fruit and seed of Okra or Lady Finger during development and maturation. Okra flowers were tagged at flower opening or anthesis. Sample fruits (technically called capsules) that developed from the tagged flowers were collected at random at 3, 6, 9, 12, 15, 18, 21 and 24 days after anthesis (DAA). The pericarp and seed samples were oven-dried and ground to a powdered form and analyzed for chlorophyll, sugar, starch, crude protein and crude fiber content using standard procedures. Chlorophyll and crude fiber content were strongly positively correlated with fruit age, being lowest in the pericarp of young fruits and highest in older fruits. Sugar, starch and protein content were all negatively correlated with fruit age. They were highest in the pericarp of young 3-day old fruits and steadily decreased with maturity, reaching lowest levels at day 24. In the seeds, protein and starch contents were weakly correlated with fruit maturity. Throughout seed development, sugar remained relatively low while starch and protein content remained high. Based on the results, okra fruits are best harvested as fresh green vegetable at 9 DAA. At this stage, the fruits are succulent, less fibrous and are rich in proteins and carbohydrates. Although much younger fruits also have high nutrient content, they are too small in size, so harvesting them at this stage would not be practical and profitable.

scholarly journals Effect of dietary protein levels on the growth of Carnatic carp Barbodes carnaticus (Jerdon, 1849) fingerlings

2017 ◽  
Vol 64 ◽  
Author(s):  
N. Sridhar ◽  
B. Gangadhar ◽  
Uma Latha ◽  
C.H. Raghavendra ◽  
S. S. Giri ◽  
...  
Keyword(s):  
Proximate Composition ◽  
Crude Protein ◽  
Growth Parameters ◽  
Proximate Analysis ◽  
Protein Diet ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Protein Levels ◽  
Faecal Matter ◽  
Protein Diets

Fingerlings of Barbodes carnaticus (Jerdon 1849) (6.40±0.267 cm, 2.46±0.39 g) were reared in aerated plastic tubs (40 l) with five iso-energetic diets formulated to contain crude protein levels ranging from 25 to 45% using pure ingredients. Initially, the diet was fed at @5% of the biomass and gradually adjusted based on daily feed consumption. The fish were allowed to feed for 6 h and thereafter the unconsumed feeds were siphoned out. The following day, faecal matter was collected from each tank by filtering the water with a fine meshed nylon cloth (15 μm), dried, pooled and stored for proximate analysis. Water from eachtub was replaced with 50% freshwater every day after faecal matter collection. The feeding trial was conducted for a period of 60 days. Proximate composition of feed and faecal matter was analysed. Acid insoluble ash was used as the reference marker for dry matter, protein and fat digestibility determination. The growth parameters and protein efficiency ratio (PER) were higher (p<0.05) in fish fed 35% protein diet compared to other diets. The feed conversion ratio (FCR) was lower (p<0.05) in 35, 40 and 45% protein diets compared to the lower protein diets. The carcass proximate composition revealed the lowest moisture (p<0.05) and highest protein (p>0.05) and fat content (p<0.05) in fish fed 35% protein diet compared to other diets. The digestibility ofdry matter and nutrients was higher (p<0.05) with 35% protein diet. The study revealed crude protein requirement of 35% by the fingerlings of B. carnaticus.

scholarly journals Growth, yield and nutrient content of blackgram (Vigna mungo) as influenced by levels of phosphorus, sulphur and Phosphorus Solubilizing Bacteria

2014 ◽  
Vol 11 (1) ◽  
pp. 1-6
Author(s):  
AH Mir ◽  
SB Lal ◽  
M Salmani ◽  
M Abid ◽  
I Khan
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Protein Content ◽  
Plant Height ◽  
Growth Parameters ◽  
Growth Yield ◽  
Nutrient Content ◽  
Crop Growth ◽  
Plant Yield ◽  
Number Of Leaves

A field experiment was conducted at Allahabad Agricultural Institute- Deemed University, Allahabad to study the effect of levels of phosphorus, sulphur and Phosphorus Solubilizing Bacteria (PSB) on growth, yield and nutrient content of blackgram for consecutive two years 2004 and 2005. The crop growth parameters viz., plant height, number of nodules and number of leaves per plant, yield and nutrient content increased significantly with the application of high levels of phosphorus, sulphur with or without bio-fertilizer inoculation. Application of 60 kg P2O5 ha-1 recorded maximum plant height (49.9 cm), number of leaves plant-1 (50.8), number of nodules plant-1 (27.8), haulm yield (28.9 q ha-1), grain yield (8 q ha-1) and phosphorus, sulphur and protein content of grain (0.356 %, 0.253% and 22.64%, respectively) as compared to lower levels. Application of Sulphur @ 40 kg ha-1 recorded maximum plant height (47.31 cm), number of leaves plant-1 (49.80), number of nodules plant-1 (25.58), haulm yield (28.80 q ha-1), grain yield (7.92 q ha-1) and phosphorus, sulphur and protein content (0.295 , 0.281 and 21.79%, respectively). Inoculation of blackgram seeds with phosphorus solubilizing bacteria recorded slightly higher grain yield (7.49 q ha-1) as compared to no inoculation (7.39 q ha-1). DOI: http://dx.doi.org/10.3329/sja.v11i1.18370 SAARC J. Agri., 11(1): 1-6 (2013)

scholarly journals Effect of Dietary Protein on Growth, Survival and Cannibalism of Larval Striped Snakehead, Channa striata (Bloch, 1793)

2021 ◽  
Vol 34 (3) ◽  
Author(s):  
CHIRONJIB SINGHA SAMANTA CHANDAN ◽  
PUJA ROY ◽  
FAHIMA KHATUN ◽  
NIRMAL CHANDRA ROY
Keyword(s):  
Protein Content ◽  
Dietary Protein ◽  
Crude Protein ◽  
Growth Parameters ◽  
Fish Larvae ◽  
Well Being ◽  
Feed Conversion ◽  
Protein Levels ◽  
Channa Striata ◽  
Commercial Feeds

The available commercial feeds in Bangladesh for fish larvae, including striped snakehead, (Channa striata (Bloch, 1793)), lack crude protein content. Therefore, for the proper biological well-being of striped snakehead larvae, formulating a protein-rich diet is necessary. The present experiment aimed to study the effect of three formulated isocaloric diets with varying levels of protein content on growth, survival, cannibalism, and mortality in striped snakehead (29 ± 3 mg of mean weight) weaning by rearing for 4 weeks. Three experimental groups depending on the dietary crude protein (CP 35 %, CP 40 %, and CP 45 %) were done in triplicate. Growth parameters (weight and length gain, specific growth rate, feed conversion ratio, and protein efficiency ratio) indicated better growth and feed utilisation in larvae fed CP 45 %, followed by 40 % and 35 % (P < 0.05). However, survival was not significantly different comparing the experimental groups. The cannibalism was maximum in CP 45 %, compared to 35 % and 40 %, most probably due to higher size heterogeneity, also confirmed by the co-efficient of variation in fish size. The observed mortality (not cannibalism) was higher in the group with lower protein (CP 35%) attributable to comparatively low feed intake and utilisation. Overall, the higher dietary protein levels demonstrated comparatively higher growth, possibly indicating the importance of increased protein content in snakehead larval feed.

scholarly journals Effects of urban atmospheric particulate matter on higher plants using Lycopersicon esculentum as model species

2021 ◽  
Vol 3 (9) ◽  
Author(s):  
Katalin Hubai ◽  
Nora Kováts ◽  
Gábor Teke
Keyword(s):  
Particulate Matter ◽  
Lycopersicon Esculentum ◽  
Protein Content ◽  
Higher Plants ◽  
Nutrient Content ◽  
Atmospheric Particulate Matter ◽  
Dose Effect ◽  
Atmospheric Particulate ◽  
Wide Range ◽  
Treatment Experiment

AbstractAtmospheric particulate matter (PM) is one of the major environmental concerns in Europe. A wide range of studies has proved the ecotoxic potential of atmospheric particles. PM exerts chemical stress on vegetation by its potentially toxic constituents; however, relatively few studies are available on assessing phytotoxic effects under laboratory conditions. In our study, aqueous extract of particulate matter was prepared and used for treatment. Experiment was following the procedure defined by the No. 227 OECD Guideline for the Testing of Chemicals: Terrestrial Plant Test. Tomato (Lycopersicon esculentum Mill.) plants were used; elucidated toxicity was assessed based on morphological and biochemical endpoints such as biomass, chlorophyll-a and chlorophyll-b, carotenoids, and protein content. Biomass reduction and protein content showed a clear dose–effect relationship; the biomass decreased in comparison with the control (100%) in all test groups (TG) at a steady rate (TG1: 87.73%; TG2: 71.77%; TG3: 67.01%; TG4: 63.63%). The tendency in protein concentrations compared to the control was TG1: 113.61%; TG2: 148.21% TG3: 160.52%; TG4: 157.31%. However, pigments showed a ‘Janus-faced’ effect: nutrient content of the sample caused slight increase at lower doses; actual toxicity became apparent only at higher doses (chlorophyll-a concentration decrease was 84.47% in TG4, chlorophyll-b was 77.17%, and finally, carotene showed 83.60% decrease in TG4).

Performance of the house cricket (Acheta domesticus) on by-product diets in small-scale production

2021 ◽  
pp. 1-6
Author(s):  
J.M. Sorjonen ◽  
M. Karhapää ◽  
S. Holm ◽  
A. Valtonen ◽  
H. Roininen
Keyword(s):  
Conversion Rate ◽  
Development Time ◽  
Acheta Domesticus ◽  
Small Scale ◽  
Scale Production ◽  
Feed Conversion ◽  
House Cricket ◽  
Current Production ◽  
Feed Conversion Rate ◽  
By Products

As insect farming is becoming more popular in Europe and in the US, the use of food industry by-products in insects’ feed is drawing more attention. However, it is still unclear how to maximise the use of by-products in the feeds while meeting the nutritional requirements and maintaining profitable rearing yields with the current production technology. In this study, we conducted an experiment in Finnish small-scale cricket farming and laboratory conditions to determine whether five diet treatments, including by-product diets with barley mash and turnip rape, modify the overall fresh yield (kg), development time and feed conversion rate of the house crickets (Acheta domesticus). We discovered that the diets differed in the overall fresh cricket yield (kg) but not in the development time or the feed conversion rate of the crickets. The diets with a high proportion of by-product decreased the price of the feed but at the same time reduced the yield. Based on our results, complex by-product diets with the by-product proportion of 20-41% are the most suitable for house cricket rearing.

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