Feeding and crop emptying in Glossina brevipalpis Newstead

Moloo, S.K.; Kutuza, S. B.

doi:10.1016/0035-9203(71)90225-2

Cited by 15 publications

(19 citation statements)

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“…Extrapolation to the mean wingvein lengths for male and female G. longtpenms predicts a mean blood meal size of approximately 100 mg for males and 125 mg for females. This is consistent with a mean blood meal size of 113 mg for wild-caught male G. brevipalpis Newstead (fed on rabbits and cows) (Moloo & Kutuza, 1970) which are a similar size to G. longipcnms (Buxton, 1955 ). This suggests a 3-day feeding interval on average.…”

Section: Nutritional Condition Of Male Fliessupporting

confidence: 80%

Trap-catches, nutritional condition and the timing of activity of the tsetse fly Glossina longipennis (Diptera: Glossinidae)

Randolph¹,

Rogers²,

Dransfield

et al. 1991

Bull. Entomol. Res.

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Samples of Glossina longipennisCorti, taken over four days in traps (baited with acetone, cow urine and octenol) at half-hourly intervals during their restricted activity periods at dusk and dawn, were analysed for their nutritional condition. For both sexes, trap catches were highest at the end of dusk, between 19.00 and 19.30 h, associated with a significant increase in numbers with the low haematin content characteristic of flies estimated to have fed more than 60 hours previously. Also, the mean fat content of these flies was significantly lower than that of those trapped earlier. There was considerable day-to-day variation in the numbers of flies trapped, and in the numbers of low haematin and low fat flies. It is concluded that the nutritional condition of the fly probably influences the timing of the onset of activity, but possibly the fly's approach to the trap.

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Section: Nutritional Condition Of Male Fliessupporting

confidence: 80%

Trap-catches, nutritional condition and the timing of activity of the tsetse fly Glossina longipennis (Diptera: Glossinidae)

Randolph¹,

Rogers²,

Dransfield

et al. 1991

Bull. Entomol. Res.

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“…This relatively isolated vessel provides for both nutrient storage and, at the same time, produces an ideal environmental site for microbial survival or presence. Without leakage of its contents into the hemolymph and, any reverse movement from the hemolymph into the lumen of the crop lobes, the crop produces an isolated environment for nutrients and microbes that have together gained entrance (Abbott, 1945;Moloo and Kutuza, 1970). Here the microbes are isolated from the major insults of the midgut [i.e.…”

Section: Cuticular Lining Of the Lumen And Epithelial Producing Cellsmentioning

confidence: 99%

“…For Stomoxys, which can shunt blood into the crop, it has been suggested that various pathogens ingested with the blood meal, but remaining within the crop for at least 24 h, could be transmitted to another host via regurgitation of crop contents (Baldacchino et al, 2013). A similar situation could exist with Glossina because there are reports in this species of blood being diverted into the crop (Modespacher et al, 1986;Moloo and Kutuza, 1970). Information on pathogens within the crop of both species is needed.…”

Section: Crop Involvement With Microorganismsmentioning

confidence: 99%

Fly foregut and transmission of microbes

Stoffolano

2019

Advances in Insect Physiology

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“…As the tsetse fly is a relatively slow breeder (a female fly will produce only one offspring every 9 to 10 days), it is reasonable as a first step to determine whether dietary substances are acceptable in terms of the physiology of food-uptake and of the highly efficient excretion process of excess dietary water (Lester & Lloyd, 1928). In this study, the effects of several serum substitutes on the feeding response, fooduptake (Friend & Smith, 1977) and primary excretion (Moloo & Kutuza, 1970) of G. p. palpalis are reported.…”

mentioning

confidence: 99%

INFLUENCE OF DIET COMPOSITION ON MEAL SIZE AND RATE OF EXCRETION OF THE TSETSE FLY GLOSSINA PALPALIS PALPALIS

Takken

1980

Entomologia Exp Applicata

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The suitability of various diets for the tsetse fly Glossina palpalis palpalis has been investigated in terms of food‐uptake and primary excretion. Serum substitutes were prepared reflecting the composition of bovine serum and offered to teneral female flies, on a few occasions in combination with erythrocytes. Routinely, all diets contained 10−3 M ATP. There was no difference in meal size when flies were fed on serum or serum‐substitutes, alone, or in combination with erythrocytes. The rate of primary excretion was reduced in diets, where serum was substituted by an isotonic saline containing bovine albumin or bovine albumin + gamma‐globulin. Glucose, added to a diet containing albumin, induced a normal excretion rate. In all cases a combination of erythrocytes and serum (‐substitutes) caused a reduced primary excretion as compared to the sera (‐substitutes) alone. The rate of excretion was highly correlated with the meal size, regardless of the diet composition. RÉSUMÉ L'INFLUENCE DE LA COMPOSITION DU RÉGIME SUR L'IMPORTANCE DU REPAS ET DU TAUX D'EXCRÈTION DE GLOSSINA PALPALIS PALPALIS On a étudié plusieurs régimes alimentaires destinés à la mouche tsé‐tsé, Glossina palpalis palpalis, pour déterminer s'ils permettent une absorption des aliments et une excrétion primaire satisfaisantes. On a préparé et proposé à des nymphes femelles des substituts de sérum ayant la même composition que le sérum bovin et associés dans certains cas à des érythrocytes. Tous les régimes étudiés contenaient 10−3 M ATP. Les quantités ingérées par les mouches nourries sur sérum ou substituts de sérum seuls ou associés à des érythrocytes ont été les mêmes. L'excrétion primaire avec régimes où le sérum avait été remplacé par une solution saline isotonique contenant de l'albumine bovine ou un mélange d'albumine bovine et de gamma‐globuline était réduite. L'adjonction de glucose à un régime contenant de l'albumine a entrainé une excrétion normale. Dans tous les cas, la combinaison d'érythrocytes et de sérums (ou de substituts) a réduit l'excrétion primaire par rapport aux régimes composés de sérums (ou de substituts) seuls. Quel que soit le régime le taux d'excrétion était fortement lié aux quantités absorbées.

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Feeding and crop emptying in Glossina brevipalpis Newstead

Cited by 15 publications

References 0 publications

Trap-catches, nutritional condition and the timing of activity of the tsetse fly Glossina longipennis (Diptera: Glossinidae)

Trap-catches, nutritional condition and the timing of activity of the tsetse fly Glossina longipennis (Diptera: Glossinidae)

Fly foregut and transmission of microbes

INFLUENCE OF DIET COMPOSITION ON MEAL SIZE AND RATE OF EXCRETION OF THE TSETSE FLY GLOSSINA PALPALIS PALPALIS

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