Data/hora: 16/06/2024 04:48:16

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 28/07/1995
Data da última atualização: | 28/07/1995
Autoria: | LEVINE, N. D.; TODD JUNIOR, K. S.
Título: | Survival of free-living stages of sheep nematodes on pasture.
Ano de publicação: | 1977
Fonte/Imprenta: | Illinois Research, v.19, n.2, p.12-13, Spring, 1977.
Idioma: | Inglês
Conteúdo: | Nematodes or roundworms in the stomach and intestines of sheep and cattle are the most important parasites of these animals in Illinois. They are responsible for heavy losses among young animals, especially lambs. We have been studying nematodes for quite a few years to find out how to control them without drugs. We have been using sheep because they are cheaper and casier to handle than cattle, but their parasites are about the same, and the results should also be the same. Nematodes do not multiply in their host. The females in the stomach or intestine lay microscopic eggs which pass out with the droppings. Each female lays jundred to thousands of eggs a day. After a short period of development, the eggs hatch and microscopic larvae (tiny, immature worms) emerge, which develop on pasture to a stage which is able to infect an animal. These larvae then leave the droppings and climb up onto the vegetation, where they are too small to be seen. They infect grazing sheep or cattle.
Palavras-Chave: | Nematodes; Nematoides; Parasita; Parasite; Pasture; Survival.
Thesagro: | Carneiro; Pastagem; Sobrevivência.
Thesaurus Nal: | sheep.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (28804-1) - ADD - SP - -- - SP0496 -  - 0496 - DIS