Metazoan parasites of dogs in sabah,malaysia

Summary The parasites which occurred most frequently in 175 owned or stray dogs in Sabah wereAncylostoma spp. present in 68% of the animals.Dirofilaria immitis occurred in 70% of the adult dogs but neitherD. immitis norSpirocerca lupi were present in puppies under four months of age. The latter attained a prevalence of 30% in the adults. In contrastToxocara canis occurred in 81% of the puppies but infrequently in older dogs.Dipylidium caninum was moderately prevalent (15 to 25%) in dogs of all ages. Ticks were the most common arthropod parasite being present on 26% of the dogs and were mainlyRhipicephalus sanguineus. Demodectic and sarcoptic mange were confirmed and fleas and lice were also recovered.

---

Parasitos Metazoaricos De Perros En Saba, Malasia

Resumen Los parásitos más frecuentemente encontrados en 175 perros callejeros y particulares en Saba fueron:Ancylostoma spp. en el 68% de los animales;Dirofilaria immitis en el 70% de perros adultos. No se encontró niD. immitis o Spirocerca lupi en cachorros bajo cuatro meses de edad. Este último parásito se encontró en el 30% de perros adultos. En contraste,Toxocara canis ocurrió en el 81% de los cachorros examinados, e infrecuentemente en perros adultos.Dipylidium caninum fue moderadamente prevalente en perros de todas las edades (15–25%). Las garrapatas fueron los artrópodos más encontrados, estando presentes en el 26% de los perros. La especie más común fue elRhipicephalus sanguineus. También se encontraron varios animales con sarna demodéctica y sarcóptica y con pulgas y piojos.

---

Metazoaires Parasites Des Chiens Au Sabah, Malaisie

Résumé Les parasites les plus fréquemment rencontrés chez 175 chiens errants ou ayant un maitre, au Sabah, taient desAncylostoma spp. présents chez 68% des animaux.Dirofilaria immitis a été trouvée chez 70% des chiens adultes mais niD. immitis niSpirocerca lupi n'étaient présents chez les chiots de moins de quatre mois. Ce dernier atteignait une fréquence de 30% chez les adultes. Par contrasteToxocara canis se trouvait chez 81% des chiots mais rarement chez les chiens plus agés.Dipylidium caninum était modérément fréquent (15 à 25%) chez les chiens de tous âges. Les tiques étaient les arthropodes parasites les plus fréquents, étant rencontrés sur 26% des chiens; il s'agissait principalement deRhipicephalus sanguineus. Les gales demodéciques et sarcoptiques ont été confirmées des puces et des poux ont été également récoltés.

     

The Salmonella excretor incidence of dogs in Hawke's Bay

Two groups of adult Merino sheep, initially grazed on pasture, were dosed daily with zinc sulphate (1 mg Zn/kg LW) or zinc oxide (15 mg Zn/kg LW) for six and seven weeks, respectively. On the 18th day, both groups were transferred to indoor pens together with unmedicated control sheep, and five days later the feet of all animals were infected artificially with a virulent strain of Bacteroides nodosus. By the fourth week after challenge, 85% or more of the feet challenged had developed advanced footrot, and no significant differences in the incidence and severity of lesions between dosed and undosed groups were recorded. Plasma zinc concentrations, monitored throughout the experiment, remained at similar levels in sheep receiving the lower dose rate and in the controls. At the higher dose rate, plasma zinc levels increased till Day 23, but thereafter declined to values comparable to those of undosed animals. At post mortem, no evidence of zinc toxicosis was found, and only the kidneys of sheep receiving the higher dosage showed a significant accumulation of zinc compared with the controls.     

Interpretation of complement fixation test results as displayed on Auto-Analyzer charts

The Auto-Analyzer is used to perform complement fixation testing for the Brucellosis Eradication Scheme. In this system, the reactions of the complement fixation test are carried out using the continuous flow analysis principle. A colorimeter measures the transmittance of red cells left in suspension at the end of the reactions and this is traced on to the Auto-Analyzer recorder chart.

The normal trace consists of a “standard” control serum, which corresponds to 50% haemolysis of red cells, followed by 39 small crests indicating negative samples. Any sample giving a peak equal to or higher than the standard serum is positive. Aberrant traces may be caused by carry-over from positive samples, poor sample preparation, and machine or reagent faults.