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Haemonchus placei is newly described based on an isolate from 2 cattle in Argentina (10 males, 10 linguiform females and 10 knobbed females). It has distinct morphological features which differentiate it from sheep and goat Haemonchus contortus and it presents only 2 female morphotypes (linguiform...

Giudici, C. J.; Cabaret, J.; Durette-Desset, M. C.
Parasite, 1999, 6, 4, pp 333-342

A comprehensive computer model was developed for simulation of the population dynamics of B. microplus and B. annulatus. The model is deterministic and based on a dynamic life table with weekly time steps. The model simulates the effects of major environmental variables, such as ambient...

Mount, G. A.; Haile, D. G.; Davey, R. B.; Cooksey, L. M.
Journal of Medical Entomology, 1991, 28, 2, pp 223-240

II. A vitamin deficiency in ruminants in the Argentine was reported, caused by a diet of Cynodon hirsutus and C. dactylon. HCN, produced by these grasses, appears to destroy the micro-organisms synthesizing vitamins of the B complex. The conditions responded to injections of the above mentioned...

Recent developments affecting livestock production in the Americas, 1956, pp 83-98 pp.

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