Cinétique d’infestation par <em> Haemonchus contortus </em> et réponse d’ovins de races résistante (Martinik Black Belly) et sensible (Lacaune)

EFFECTS OF Haemonchus contortus INFECTION ON SODIUM STATUS OF SHEEP EFEITOS DA INFECÇÃO DE Haemonchus contortus SOBRE O STATUS DE SÓDIO EM OVINOS

Eight five-month-old male lambs received a diet with marginal levels of sodium (0.5 g Na/kg DM); four lambs were given a single dose of infective Haemonchus contortus larvae (4,600 L3/ head) and four were kept uninfected. The lambs were slaughtered 30 days after the infection. Sodium concentration was determined in the abomasal fluid at the slaughter. The balance between intake and faecal excre...

Evaluation de la réponse d'un système de question-réponse et de sa justification

RÉSUMÉ. Les systèmes de question-réponse fournissent une réponse à une question en l’extrayant d’un ensemble de documents. Avec celle-ci ils fournissent également un passage de texte permettant de la justifier. On peut alors chercher à évaluer si la réponse proposée par un système est correcte et justifiée par le passage. Pour cela, nous nous sommes fondés sur la vérification de différents crit...

Périphériques haptiques et simulation d'objets, de robots et de mannequins dans un environnement de CAO-Robotique : eM-Virtual Desktop

This paper presents the development of a new software in order to manage objects, robots and mannequins in using the possibilities given by the haptic feedback of the Phantom desktop devices. The haptic device provides 6 positional degree of freedom sensing but three degrees force feedback. This software called eM-Virtual Desktop is integrated in the Tecnomatix's solution called eM-Workplace. T...

EM Algorithms for PCA and Sensible PCA

Frequency of benzimidazole resistance in Haemonchus contortus populations isolated from buffalo, goat and sheep herds Frequência da resistência ao benzimidazol em populações de Haemonchus contortus isoladas de rebanhos de bubalinos, caprinos e ovinos

Anthelmintic resistance is an increasing problem that threatens livestock production worldwide. Understanding of the genetic basis of benzimidazole resistance recently allowed the development of promising molecular diagnostic tools. In this study, isolates of Haemonchus contortus obtained from goats, sheep and buffaloes raised in Brazil were screened for presence of the polymorphism Phe200Tyr i...