Effects of microclimatic variables on the availability and movement of third-stage larvae of Ostertagia ostertagi on herbage

Assessments were made of the influence of several microclimatic variables on the availability of third-stage larvae of Ostertagia ostertagi, on pasture herbage. Variables most closely related to recovery of larvae from the lower herbage samples were: maximum air, mat and dung temperatures. Recovery of larvae from the upper portion of the herbage was closely correlated with dung temperature, sampling-time air temperature and maximum air temperature. Bearing in mind that the moisture threshold was maintained throughout the trial the results of this study suggest that under field conditions, larval movement of third-stage 0. ostertagi larvae on herbage is regulated primarily by temperature.The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Council for Scientific and Industrial Research, South Africa.mn201

The lateral flow card test: an alternative method for the detection of Trichinella infection in swine

A novel lateral flow card (TS-Card pork) test was developed for the serological detection of Trichinella infected pigs. Based on extensive studies performed in Romania during 1 999-2000 this test proved to be highly specific, sensitive, rapid (3-12 minutes) and easy to use (no need for laboratory facilities). It can be used both for the detection of Trichinella infection in carcasses and for epizootiological studies using a variety of samples including whole or dried blood, serum, or tissue fluids. The TS-Card pork test, used as a screening test, can be the foundation of an on-farm or field based inspection system to significantly improve food safety in countries with a high prevalence of Trichinella in pigs or other food animal species. The results presented are also promising for application of the test in an on-line laboratory based inspection system since the speed of the test allows sufficient time to rail out suspected hog carcasses during the slaughter process

Trichinellosis: now and forevermore ?

The re-emergence of the zoonotic importance of trichinellosis reminds us that this parasite's unique biological features serve it well in helping it to persist in the face of 150 years of efforts to eliminate it from the food chain. Because of Trichinella's reemergence as an important public health risk, and the consequent stimulation of research, our knowledge of the parasite has grown, especially on the complexity of its biology and epidemiology. This overview will highlight the major features of this parasite's adaptive traits and the human factors that account for its reemergence in many regions, along with the actions of the International Trichinellosis Commission to address these issues. The attractiveness of Trichinella as a research subject for study of the parasitic lifestyle will also be emphasized, including areas for future research

Trichinellosis: now and forevermore ?

The re-emergence of the zoonotic importance of trichinellosis reminds us that this parasite's unique biological features serve it well in helping it to persist in the face of 150 years of efforts to eliminate it from the food chain. Because of Trichinella's reemergence as an important public health risk, and the consequent stimulation of research, our knowledge of the parasite has grown, especially on the complexity of its biology and epidemiology. This overview will highlight the major features of this parasite's adaptive traits and the human factors that account for its reemergence in many regions, along with the actions of the International Trichinellosis Commission to address these issues. The attractiveness of Trichinella as a research subject for study of the parasitic lifestyle will also be emphasized, including areas for future research