The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/14702 |
Resumo: | An evaluation was made of the influence of the peri-parturient period on the counts of eggs of nematodes in the faeces of beef cattle. Thirty-two Nellore pregnant cows were used, of which 8 with the first calf, 12 with the second and 12 with the third calf, all calving in October. To determine the number of eggs per gram of faeces (EPG) and larvaecultures, one sample of faeces was collected before calving (aproximately fifteen days before), one sample at calving and six weekly samples post calving. There was no significant interaction between the number of calves and the EPG counts in the different samples. No significant difference was observed in the EPG counts before and after calving, although there was a tendency to an increase on the day of calving and during two weeks afterwards. Cows with first calf showed mean EPG higher than those with second and third calves, both before and after calving (P<0.05). Cooperia sp. contributed most to the rise in mean EPG. Taking into consideration the increase in EPG of cows, and epidemiological studies previously carried out, it is recommended that cows be dosed in the months of July or August. |
id |
EMBRAPA-4_2cdcbd3b6aa5451670514363b3da2b86 |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/14702 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient periodProdução de ovos de nematódeos gastrintestinais em vacas Nelore, durante o período peripartoepidemiology; parasilogy; beef cattle; Cooperia; Haemonchus; cerradoepidemiologia; parasitologia; bovinos de corte; Cooperia; Haemonchus; cerradoAn evaluation was made of the influence of the peri-parturient period on the counts of eggs of nematodes in the faeces of beef cattle. Thirty-two Nellore pregnant cows were used, of which 8 with the first calf, 12 with the second and 12 with the third calf, all calving in October. To determine the number of eggs per gram of faeces (EPG) and larvaecultures, one sample of faeces was collected before calving (aproximately fifteen days before), one sample at calving and six weekly samples post calving. There was no significant interaction between the number of calves and the EPG counts in the different samples. No significant difference was observed in the EPG counts before and after calving, although there was a tendency to an increase on the day of calving and during two weeks afterwards. Cows with first calf showed mean EPG higher than those with second and third calves, both before and after calving (P<0.05). Cooperia sp. contributed most to the rise in mean EPG. Taking into consideration the increase in EPG of cows, and epidemiological studies previously carried out, it is recommended that cows be dosed in the months of July or August.Foi avaliada a influência das épocas de pré e pós-parto sobre a contagem de ovos de nematódeos nas fezes de bovinos de corte. Utilizaram-se 32 vacas Nelore prenhes, sendo 8 de primeira, 12 de segunda e 12 de terceira cria, como parto previsto para o mês de outubro. Para determinação do número de ovos por grama de fezes (OPG) e coproculturas, foi feita uma coleta de fezes antes do parto (aproximadamente quinze dias antes), uma por ocasião do parto e seis coletas semanais após o parto. Não houve interação significativa entre o número de crias das vacas com os valores de OPG nas diferentes coletas. Não foi observada diferença significativa, nos valores de OPG, antes e depois do parto, apesar de ter havido uma tendência de aumento no dia do parto e nas duas semanas após o parto. As vacas de primeira cria apresentaram média de OPG maiores do que as vacas de segunda e terceira crias, tanto antes como depois do parto (P<0,05). A Cooperia foi o nematódeo que mais contribuiu para o aumento de OPG. Levando-se em consideração o aumento de OPG das vacas e estudos epidemiológicos anteriores, é recomendada a dosificação das vacas no mês de julho ou agosto.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBianchin, IvoHoner, Michael RobinCurvo, João Baptista Esmela2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/14702Pesquisa Agropecuaria Brasileira; v.22, n.11/12, nov./dez. 1987; 1239-1243Pesquisa Agropecuária Brasileira; v.22, n.11/12, nov./dez. 1987; 1239-12431678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/14702/8389info:eu-repo/semantics/openAccess2014-10-15T17:37:50Zoai:ojs.seer.sct.embrapa.br:article/14702Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-15T17:37:50Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period Produção de ovos de nematódeos gastrintestinais em vacas Nelore, durante o período periparto |
title |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period |
spellingShingle |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period Bianchin, Ivo epidemiology; parasilogy; beef cattle; Cooperia; Haemonchus; cerrado epidemiologia; parasitologia; bovinos de corte; Cooperia; Haemonchus; cerrado |
title_short |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period |
title_full |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period |
title_fullStr |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period |
title_full_unstemmed |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period |
title_sort |
The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period |
author |
Bianchin, Ivo |
author_facet |
Bianchin, Ivo Honer, Michael Robin Curvo, João Baptista Esmela |
author_role |
author |
author2 |
Honer, Michael Robin Curvo, João Baptista Esmela |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Bianchin, Ivo Honer, Michael Robin Curvo, João Baptista Esmela |
dc.subject.por.fl_str_mv |
epidemiology; parasilogy; beef cattle; Cooperia; Haemonchus; cerrado epidemiologia; parasitologia; bovinos de corte; Cooperia; Haemonchus; cerrado |
topic |
epidemiology; parasilogy; beef cattle; Cooperia; Haemonchus; cerrado epidemiologia; parasitologia; bovinos de corte; Cooperia; Haemonchus; cerrado |
description |
An evaluation was made of the influence of the peri-parturient period on the counts of eggs of nematodes in the faeces of beef cattle. Thirty-two Nellore pregnant cows were used, of which 8 with the first calf, 12 with the second and 12 with the third calf, all calving in October. To determine the number of eggs per gram of faeces (EPG) and larvaecultures, one sample of faeces was collected before calving (aproximately fifteen days before), one sample at calving and six weekly samples post calving. There was no significant interaction between the number of calves and the EPG counts in the different samples. No significant difference was observed in the EPG counts before and after calving, although there was a tendency to an increase on the day of calving and during two weeks afterwards. Cows with first calf showed mean EPG higher than those with second and third calves, both before and after calving (P<0.05). Cooperia sp. contributed most to the rise in mean EPG. Taking into consideration the increase in EPG of cows, and epidemiological studies previously carried out, it is recommended that cows be dosed in the months of July or August. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/14702 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/14702 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/14702/8389 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.22, n.11/12, nov./dez. 1987; 1239-1243 Pesquisa Agropecuária Brasileira; v.22, n.11/12, nov./dez. 1987; 1239-1243 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416701160718336 |