E 372:1993
Portugal, Ministério das Obras Públicas, Transportes e Comunicações
1993
Type
masterThesis
Creator
Identifier
202338061
Title
Parasitismo em ruminantes associado à gestão de resíduos pecuários.
Contributor
Matos, Ana Cristina Outeiro Correia de
Santos, Maria da Conceição Mesquita dos
Santos, Maria da Conceição Mesquita dos
Subject
Beira Interior
Parasitas gastrointestinais
Ruminantes
Pastagens
Solo
Gastrointestinal parasites
Ruminants
Pastures
Soil
Domínio/Área Científica::Ciências Agrárias
Parasitas gastrointestinais
Ruminantes
Pastagens
Solo
Gastrointestinal parasites
Ruminants
Pastures
Soil
Domínio/Área Científica::Ciências Agrárias
Date
2019-12-13T12:34:19Z
2019-12-13T12:34:19Z
2019
2019-12-13T12:34:19Z
2019
Description
Os parasitas gastrointestinais causam grandes perdas na produção de ruminantes e podem prevalecer no seu trato intestinal durante meses. Através das fezes emitidas pelos animais infetados ou através da sua aplicação como fertilizante natural (estrume e chorume) as pastagens podem ser contaminadas. Desta forma, pode criar-se um ciclo que contribui para o desenvolvimento de parasitas gastrointestinais, uma vez que essas pastagens continuarão a ser consumidas pelos animais. O conhecimento destes parasitas e da sua ação é fundamental para o controlo de infeções e para o sucesso da exploração.
A presente dissertação aborda os principais parasitas que afetam os ruminantes e consequentemente a sua produção e pretende pesquisar a existência desses parasitas nas fezes dos ruminantes da Quinta da Senhora de Mércules e a respetiva prevalência nas pastagens, solos e águas de locais onde foram aplicados estrume e chorume de bovinos e onde ocorreu pastoreio por ovinos.
O trabalho prático decorreu entre os meses de janeiro e junho de 2018, e as análises parasitológicas foram realizadas no Laboratório de Parasitologia da Escola Superior Agrária de Castelo Branco, utilizando as técnicas de Mc Master modificada, flutuação de Willis, Baerman, Roberts O’Sullivan (coprocultura) e os métodos de Bailenger modificado, Sedimentação e Rugai (adaptado).
As análises efetuadas às camas e fezes dos grupos de ovinos (jovens e adultos) revelaram diferenças significativas (p<0,05) entre as matrizes, tanto para a presença de formas parasitárias como entre faixas etárias. Os resultados obtidos através das análises efetuadas às fezes dos bovinos, mostraram também que são os animais mais jovens que apresentam maior eliminação de formas parasitárias. Quanto às análises efetuadas às pastagens e solos, os resultados confirmaram que a humidade e temperatura são fatores importantes para a prevalência e desenvolvimento de formas parasitárias e que foram os locais em que tinha sido aplicado estrume os que apresentaram níveis de risco de contaminação mais elevado. No total das análises efetuadas, os principiais géneros observados foram Trichostrongylus, Cooperia, Moniezia, Ostertagia e Chabertia.
Gastrointestinal parasites cause large losses in ruminant productions and may prevail in their intestinal tract for months. Through the feces emitted by infected animals or through their application as a natural fertilizer the pastures can be contaminated. This way, a cycle that contributes to the development of gastrointestinal parasites can be created, since these pastures will continue to be consumed by animals. To get to know these parasites and it’s action is fundamental for the control of infections and for the success of the exploration. This dissertation is about the main parasites that affect ruminants and consequently their production and intends to investigate the existence of these parasites in feces from the Quinta da Senhora de Mércules ruminants and their prevalence in the pastures, soils and water from places fertilized with bovine manure and where grazing by sheep occurred. The practical work took place between the months of January and June 2018, and the parasitological tests were carried out at the Parasitology Laboratory of the Agrarian School of Castelo Branco, using modified Mc Master techniques, Willis, Baerman, Roberts O'Sullivan (coproculture) and the modified Bailenger methods, Sedimentation and Rugai (adapted). The analyzes performed on the beds and feces of groups of sheeps (young and adult) revealed significant differences (p<0,05) between the matrices, both for the presence of parasitic forms as well as between age groups. The results obtained through bovine feces also showed that it is the youngest animals that have greater elimination of parasitic forms. In what concerns to the analyzes of pastures and soils, the results confirmed that humidity and temperature are important factors for prevalence and development of parasitic forms, results also confirmed that the places where manure had been applied presented higher risk of contamination. From all the analyzes carried out, the main genus observed were Trichostrongylus, Cooperia, Moniezia, Ostertagia and Chabertia.
Gastrointestinal parasites cause large losses in ruminant productions and may prevail in their intestinal tract for months. Through the feces emitted by infected animals or through their application as a natural fertilizer the pastures can be contaminated. This way, a cycle that contributes to the development of gastrointestinal parasites can be created, since these pastures will continue to be consumed by animals. To get to know these parasites and it’s action is fundamental for the control of infections and for the success of the exploration. This dissertation is about the main parasites that affect ruminants and consequently their production and intends to investigate the existence of these parasites in feces from the Quinta da Senhora de Mércules ruminants and their prevalence in the pastures, soils and water from places fertilized with bovine manure and where grazing by sheep occurred. The practical work took place between the months of January and June 2018, and the parasitological tests were carried out at the Parasitology Laboratory of the Agrarian School of Castelo Branco, using modified Mc Master techniques, Willis, Baerman, Roberts O'Sullivan (coproculture) and the modified Bailenger methods, Sedimentation and Rugai (adapted). The analyzes performed on the beds and feces of groups of sheeps (young and adult) revealed significant differences (p<0,05) between the matrices, both for the presence of parasitic forms as well as between age groups. The results obtained through bovine feces also showed that it is the youngest animals that have greater elimination of parasitic forms. In what concerns to the analyzes of pastures and soils, the results confirmed that humidity and temperature are important factors for prevalence and development of parasitic forms, results also confirmed that the places where manure had been applied presented higher risk of contamination. From all the analyzes carried out, the main genus observed were Trichostrongylus, Cooperia, Moniezia, Ostertagia and Chabertia.
Access restrictions
openAccess
http://creativecommons.org/licenses/by/4.0/
http://creativecommons.org/licenses/by/4.0/
Language
por
Comments