6 documents found, page 1 of 1

Etymologia: Treponema

Treponemes detected in digital dermatitis lesions in Brazilian dairy cattle and...

Prion protein gene polymorphisms and accumulation of pathogenic prion protein (...

Scrapie in sheep is associated with at least three polymorphisms in the prion protein gene (PRNP) on codons 136, 154, and 171. Countries where scrapie is endemic have been using breeding programs based on selection for the most resistant alleles. There are some PRNP genotyping data on sheep in Brazil, and scrapie has sporadically been observed since 1978. Paraná is the Brazilian state where most of the cases of...

Seleção de ovinos geneticamente resistentes ao scrapie

A susceptibilidade dos ovinos ao scrapie está relacionada a polimorfismos do gene da proteína priônica celular (PRNP). Polimorfismos nos códons 136 (alanina, A/ valina, V), 154 (arginina, R/ histidina, H) e 171 (glutamina, Q/ arginina, R/ histidina, H) são os principais determinantes de susceptibilidade/resistência ao scrapie clássico. Eles são combinados em 4 principais variantes do alelo ancestral ARQ: VRQ, A...

Medicina interna de bezerros clonados: distúrbios clínicos observados nos prime...

Evolution of Enzootic Bovine Leukosis prevalence in an university dairy herd

The prevalence of Enzootic Bovine Leukosis virus infection was determined in adult cows of the catholic university of Paraná (Pontifícia Universidade Católica do Paraná) dairy herd in 2000, 2003 and 2006 using the agar-gel immunodiffusion. The prevalence of the infection in adult lactating cows was respectively, over the years, 63.33%, 81.08% and 55.56%. Serum samples of all animals were taken in 2006, observin...