scholarly journals THE B VITAMIN REQUIREMENTS OF THE HOUSE CRICKET

1961 ◽  
Vol 39 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Claude Ritchot ◽  
J. E. McFarlane

The importance of 10 B vitamins for growth and survival of the nymphs of Acheta domesticus (L.) was tested by single omission. Thiamine, pyridoxine, nicotinic acid, pantothenic acid, choline, and biotin were found to be essential, the omission of any one of them resulting in very poor growth and in little or no survival to the adult stage. The absence of riboflavin or inositol retarded growth significantly, but a large percentage of the nymphs still reached the adult stage. The lack of folic acid resulted in a significantly longer nymphal stage and in greater mortality towards the end of that period. Only the omission of p-aminobenzoic acid had no significant effect on the nymphs.

1964 ◽  
Vol 42 (1) ◽  
pp. 11-22 ◽  
Author(s):  
J. K. Nayar

Melanoplus bivittatus (Say) can be reared From the first-instar nymphal stage to the adult stage on an amorphous diet consisting of essential chemical feeding requirements such as carbohydrates (sucrose, glucose, and soluble starch), protein (casein), salt mixture, cholesterol, ascorbic acid, and B-vitamin mixture. This suggests that the chemical feeding requirements of M. bivittatus are essentially similar to those of other phytophagous insects. The physical requirements for feeding, especially alphacel, which provides the necessary bulk to the diet, and the effect of available moisture in the container used for rearing the nymphs under laboratory conditions are demonstrated, in addition, effects of different concentrations of B-vitamin mixture, linoleic acid, and β-carotene on growth and development of these nymphs have been shown. Lower concentrations of B-vitamin mixture do not support optimal growth and higher concentrations do not further improve growth appreciably. β-Carotene is required for normal pigmentation of the nymphs, but is not required for growth and development. Linoleic acid is not required for growth of the nymphs, but is necessary for normal molting to the adult stage.


1974 ◽  
Vol 106 (4) ◽  
pp. 441-446 ◽  
Author(s):  
J. E. McFarlane

AbstractThe addition of copper to an artificial diet improves growth and survival of the house cricket, Acheta domesticus (L.), the optimum concentrations being 2 μg/g for females and 10 μg/g for males. This sex difference in requirements is attributed in part to the accumulation of copper by the larval testis. Adult males showing a loss in pigmentation, the so-called ’albino’ males, are obtained on diets low in copper; the percentage of ’albino’ males is increased by the addition of vitamin E to the diet. The pigmentation effect of vitamin E is explained by movement of copper into the testis, the development of which is stimulated by vitamin E.


Author(s):  
J. R. Adams ◽  
G. J Tompkins ◽  
A. M. Heimpel ◽  
E. Dougherty

As part of a continual search for potential pathogens of insects for use in biological control or on an integrated pest management program, two bacilliform virus-like particles (VLP) of similar morphology have been found in the Mexican bean beetle Epilachna varivestis Mulsant and the house cricket, Acheta domesticus (L. ).Tissues of diseased larvae and adults of E. varivestis and all developmental stages of A. domesticus were fixed according to procedures previously described. While the bean beetles displayed no external symptoms, the diseased crickets displayed a twitching and shaking of the metathoracic legs and a lowered rate of activity.Examinations of larvae and adult Mexican bean beetles collected in the field in 1976 and 1977 in Maryland and field collected specimens brought into the lab in the fall and reared through several generations revealed that specimens from each collection contained vesicles in the cytoplasm of the midgut filled with hundreds of these VLP's which were enveloped and measured approximately 16-25 nm x 55-110 nm, the shorter VLP's generally having the greater width (Fig. 1).


1962 ◽  
Vol 40 (3) ◽  
pp. 371-374 ◽  
Author(s):  
Claude Ritchot ◽  
J. E. McFarlane

Lipid other than sterol improves the growth and development of nymphs of Acheta domesticus (L.), as shown by the effect of adding wheat germ oil and linoleic acid to the diet. Such lipid is also necessary for reproduction: the effect appears to be on the male, but may also be on the female.


Author(s):  
J.M. Sorjonen ◽  
M. Karhapää ◽  
S. Holm ◽  
A. Valtonen ◽  
H. Roininen

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.


Animals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2680
Author(s):  
Sathita Areerat ◽  
Pipatpong Chundang ◽  
Chalermpol Lekcharoensuk ◽  
Attawit Kovitvadhi

There has been increasing interest in using insects as sustainable protein sources for humans and animals. Therefore, this study aimed to explore the possibility of substituting poultry meal with house cricket (Acheta domesticus: AD) or mulberry silkworm (Bombyx mori: BM) pupae. Fifty healthy adult mixed-breed dogs were selected and divided into five experimental groups, which were fed, in amounts based on daily energy requirement, with a control diet, a diet with 10% AD, with 20% AD, with 7% BM, or with 14% BM. Days 0–22 and 23–28 of the experiment served as the adaptation and collection phases, respectively. Haematology and blood chemistry were collected at days 0, 14, and 28, and body weight, body condition score, feed intake, faecal output, faecal score, faecal moisture, and apparent total tract digestibility of dry matter and nutrients were measured during the collection phase. The results from this study suggested that AD and BM can replace poultry meal without any adverse consequences on all measured parameters (p > 0.05). Therefore, AD at 20% or BM at 14% can be used in canine diet formulations. However, long-term feeding trials should be conducted and should focus on clinical signs relating to hypersensitivity disorders.


1958 ◽  
Vol s3-99 (48) ◽  
pp. 453-457
Author(s):  
BLANCHE-P CLAYTON

1. When the testis of Acheta domesticus is fixed in Flemming's fluid and embedded in gelatine, Sudan black reveals scarcely any lipid in the externum of the acroblast. 2. It can be shown that the externum of the acroblast contains much lipid in a masked (bound) form. 3. Experiments were performed to find what substances were effective, after Flemming fixation, in unmasking the lipid of the externum and thus making it colourable by Sudan black. 4. The following substances were found to act as unmasking agents: ethanol, dioxane, phenol, resorcinol, hydroquinone, pyrogallol, tannic acid. 5. Under the conditions of the experiment, the most effective unmasking agents were 90% ethanol and 5% hydroquinone.


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