Comparison between numbers of adult female poultry red mites feeding, egg laying, eggs laid per fed mite and mortality using goose blood as a food source and either Parafilm™ M, Baudruche membrane or a combination of either with an overlaid polyester mesh. Mean values are shown with SEM, n=6 except where stated otherwise.

Comparison between numbers of adult female poultry red mites feeding, egg laying, eggs laid per fed mite and mortality using goose blood as a food source and either Parafilm™ M, Baudruche membrane or a combination of either with an overlaid polyester mesh. Mean values are shown with SEM, n=6 except where stated otherwise.

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Background Dermanyssus gallinae , or poultry red mite (PRM), is an important ectoparasite in laying hens, having a significant welfare and economic impact. Testing novel control compounds typically involves in vitro methodologies before in vivo assessments. Historically, in vitro methods have involved PRM feeding on hen blood through a membrane. Th...

Contexts in source publication

Context 1
... statistically signicant differences were demonstrated within the same treatment groups in the two repetitions of the experiment in either feeding, egg laying, progeny per fed mite or mortality and therefore Table 2. The Paralm™ M membrane in one of the feeding devices developed a split during the incubation period, which is common with this type of membrane, whereas none of the Baudruche membranes failed. ...
Context 2
... 70% increase in the mean number of PRM feeding was observed when the mites were fed on goose blood through a Baudruche membrane compared to a Paralm™ M membrane (Fig. 2, Table 2) though, because of the high levels of variability in feeding levels of mites feeding through a Paralm™ M membrane, this increase was not statistically signicant (P = 0.1). Addition of an overlaid polyester mesh did not improve feeding rates on either membrane and a signicant (ANOVA: F (3,20) = 3.1, P = 0.04) decrease in feeding was demonstrated (Table 2) in the devices containing Baudruche + mesh compared to Baudruche membrane alone. Mites which had fed through Baudruche membrane (without overlaid mesh) produced double the number of eggs of those fed through a Paralm™ M membrane ...

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