Parafilaria bovicola, field survey of insect vectors collected from cattle, bleeding-point on cows and prepatent period studies, experimental infection of laboratory-raised Musca autumnalis with third-stage larvae, transmission of third-stage larvae to calves (clinical and pathologic findings)

Parafilaria bovicola, cattle, epizootiology, results of questionnaire survey among cattle owners revealed that (i) condemnation losses due to parasite were overrepresented among animals that came from herds held on pasture the previous year, as opposed to those from farms with indoor cattle management only; (ii) statistically significant difference between affected and nonaffected herds with respect to age groups; and (iii) frequency of lesions showed seasonal trend: Sweden

Rhipicephalus sanguineus and Ctenocephalides spp. on kennelled dogs, seasonal prevalence and mean numbers and percentages of immature and adult ticks and of fleas recovered from various sites on dogs

Rhipicephalus zambeziensis and R. appendiculatus from Zimbabwe, ecology of species compared with reference to host records, geographical distribution, physiography, climate, and seasonal occurrence, sex and stage of recovered parasites; additional review information on hosts and distribution of R. zambeziensis throughout its range in Africa

helminth parasites and Oestrus ovis in Karakul sheep, seasonal incidence determined by slaughter of successive groups of tracer lambs each exposed on pasture for 33 days, recommended deworming programme, importance of moving sheep to new pastures immediately after deworming

nematodes of catfish, seasonal variation, measurements of Paracamallanus cyathopharynx and Procamallanus laeviconchus compared with those reported from other fish species recovered elsewhere in Africa