Pablo Junquera

Pablo Junquera
Vetparcs GmbH

PhD

About

35
Publications
4,494
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278
Citations

Publications

Publications (35)
Article
Full-text available
Six benzoylphenyl ureas are currently used in formulations approved as veterinary medicines: diflubenzuron for fly control mainly on cattle, lice and blowfly strike control on sheep, and lice control on farmed salmonids; lufenuron for flea control on dogs and cats and for lice control on farmed salmonids; triflumuron for lice and blowfly strike con...
Article
Full-text available
The efficacy of a 12.5% pyriprole spot-on solution against natural flea infestations applied monthly to dogs on three occasions within 60 days was investigated in patients presented at veterinary clinics in Western Australia. Twelve dogs of various breeds, age, weight, and sex were considered in the study. Six were treated with a pyriprole spot-on...
Article
Full-text available
In three separate Studies, the efficacy of a single treatment with a 12.5% pyriprole spot-on solution (Prac-tic (R)) was investigated against induced infestation with I. scapularis, A. americanum, or D. variabilis on dogs. For each tick species, one group Of eight dogs treated with a placebo solution was compared with another group treated once wit...
Article
In three separate studies, the efficacy of a single treatment with a 12.5% pyriprole spot-on solution was investigated against induced infestation with Ixodes ricinus, Dermacentor reticulatus and Rhipicephalus sanguineus on dogs (both sexes; Beagles in Studies 1 and 2, mixed-breed in Study 3). For each tick species, one group of 8 dogs left untreat...
Article
Full-text available
The efficacy of a single treatment with a 12.5% pyriprole spot-on formulation against induced infestations with R. sanguineus ticks and cat fleas (C. felis) as well as its persistence after repeated washing and shampooing was investigated in four separate studies. In a first study on R. sanguineus involving 32 beagle dogs, the efficacy at various t...
Article
Two studies were performed to examine the efficacy of milbemycin oxime against fourth-stage larvae or adults of Toxocara cati. In the study to determine efficacy against fourth-stage larvae, 20 domestic shorthair cats were inoculated with 500 embryonated eggs. Four weeks after inoculation, the animals were allocated to two groups, and cats in one g...
Article
The effect of two treatment programmes on egg shedding in dogs naturally infected with Toxocara canis, one based on a milbemycin oxime-praziquantel-lufenuron combination (SENTINEL) Spectrum; Group 1) and the other based on a febantel-pyrantel embonate-praziquantel combination (DRONTAL) Plus; Group 2), was compared in a study involving 104 suckling...
Article
The efficacy of a combination of milbemycin oxime and praziquantel in preventing the establishment of experimentally induced heartworm (Dirofilaria immitis) infection was investigated in a study involving 24 young domestic short-hair cats. The animals were inoculated with 50 infective larvae on day 0. Subsequently they were divided into two groups...
Article
Full-text available
The efficacy of milbemycin oxime against fourth-stage (L4) larvae and adults of Ancylostoma tubaeforme was investigated in a trial involving 24 young domestic shorthair cats. The animals were inoculated with approximately 300 infective stage three (L3) larvae and divided into three groups. After 12 days, eight cats (group 1) were treated with medic...
Article
To assess a ready-to-use formulation of dicyclanil to prevent blowfly strike on coarse and fine woolled sheep under New Zealand conditions. Randomized clinical field trials. In a first field trial, coarse wooled sheep treated with a ready-to-use, 5% dicyclanil formulation were compared with untreated control sheep for up to 21 weeks. In a second fi...
Article
Full-text available
In a clinical trial involving 123 cats and 88 dogs, the efficacy of tablets containing nitenpyram against natural flea infestations was investigated. The animals were selected from the routine cases of nine veterinary clinics in the UK and 143 were treated with the tablets and 68 control animals were treated with placebo tablets. Each animal was ma...
Article
In three multicentered field trials run during 1995 to 1997, involving a total of 12,928 lambs, the preventive effects on blowfly strike of a ready-to-use 5 per cent dicyclanil pour-on formulation and of a ready-to-use 6 per cent cyromazine pour-on formulation were compared with untreated controls for periods of up to 22 weeks. Their efficacy was a...
Article
Full-text available
The efficacy of a ready-to-use 5% dicyclanil pour-on formulation as a preventative of natural flystrike on Merino lambs was investigated in a field trial involving 5 sites in the southern Cape Province. A total of 1,804 lambs treated with dicyclanil were compared with 882 untreated control lambs for up to 25 weeks after treatment. Efficacy was asse...
Article
A multi-centered field trial was carried out in the Netherlands to evaluate the efficacy of a ready-to-use 5% dicyclanil formulation as a preventative of natural flystrike on lambs. In four different sites a total of 1215 lambs treated with dicyclanil were compared with 431 untreated lambs during periods of 15 to 16 weeks. Efficacy was assessed by...
Article
To assess a ready-to-use formulation of dicyclanil to prevent blowfly strike on Merino sheep under Australian conditions. Randomised clinical trials conducted in an environment house and in the field. Two environment house trials were used to measure the protection against flystrike provide by a jetting or a ready-to-use 5% spray-on formulation of...
Article
Nature is the international weekly journal of science: a magazine style journal that publishes full-length research papers in all disciplines of science, as well as News and Views, reviews, news, features, commentaries, web focuses and more, covering all branches of science and how science impacts upon all aspects of society and life.
Article
The eggs of the gall midgeHeteropeza pygmaea develop parthenogenetically inside of the mother larva. They lack a chorion and remain enveloped by the follicular epithelium. After experimental elimination of the follicular epithelium naked eggs are formed, which reach the blastoderm stage but remain spherical instead of assuming an elongated shape. T...
Article
Paedogenetically developing eggs of the gall midgeHeteropeza pygmaea are not deposited, but develop in the hemocoel of the mother larva. The nurse chamber remains present in the cleaving egg, and the follicular epithelium does not form a chorion but envelops the growing egg during embryonic development. It is possible to obtain naked eggs, i.e. egg...
Article
The gall midge Heteropeza pygmaea can reproduce by means of paedogenesis (i.e., larval parthenogenesis). In that process, follicles are produced that develop while floating in the hemocoele of the mother larva. A chorion is not formed at the end of oogenesis, and the growing embryos remain enveloped by the follicular epithelium. To investigate poss...
Article
After X-ray irradiation, it is possible to obtain follicles and eggs of the gall midge Heteropeza pygmaea lacking the follicular epithelium. These “naked” eggs are able to develop up to the blastoderm stage but remain spherical instead of assuming an elongated shape. Polar plasm and pole cell formation have been studied at the ultrastructural level...
Article
In the paedogenetic Dipteran insect Heteropeza pygmaea it is possible by physical or chemical means to obtain oocyte-nurse chamber complexes lacking the follicular epithelium. Such oocytes nevertheless complete oogenesis and begin embryonic development. Development of these “naked” eggs has been compared to normal egg development by cinematographic...
Article
A glass filtration-apparatus provided with an exchangeable nylon-tissue filter permits collection, fixation, dehydration, staining and preembedding of small biological objects in a simple and rapid way.
Article
In the early stages of morphogenesis, the hepatic diverticulum of the rat develops as in other mammals. Its anterior part gives rise to epithelial cell-cords bound by an epithelial primary plate to a single hepatic duct which joins the liver to the midgut. The interlobular bile-ducts develop from secondary epithelial plates which derivate from the...