Patterns of Eimeria excretion in young Icelandic calves

IF 0.2 4区农林科学 Q4 AGRICULTURE, MULTIDISCIPLINARY

Icelandic Agricultural Sciences Pub Date : 2021-01-01 DOI:10.16886/IAS.2021.03

C. Oddsdóttir, G. R. Pálsdóttir

{"title":"Patterns of Eimeria excretion in young Icelandic calves","authors":"C. Oddsdóttir, G. R. Pálsdóttir","doi":"10.16886/IAS.2021.03","DOIUrl":null,"url":null,"abstract":"Faecal samples were collected from a total of 11 calves on three dairy farms (four from two farms and three from one) where calves generally thrive well and no anti-coccidial treatment is habitually carried out. One of the farms keeps calves in groups on hay/straw bedding, one keeps calves in pairs on plastic slats and then in groups on concrete slats, and the third one keeps calves in groups on concrete slats. Faecal consistency and the total number of Eimeria spp. oocysts per gram faeces (OPG) were determined and species identification was carried out by morphology. Eimeria oocysts were detected in all calves at some point of the study period, and diarrhoea was seen in 55% of the calves. The highest peak in oocyst excretion was 69,300 OPG. The first peak in oocyst excretion was seen 2-3 weeks after calves had been moved to group pens, and a second peak was seen 2-3 weeks later. Nine Eimeria species were found, including E. bovis and E. zuernii. The results are in accordance with previous studies showing that one of the risk factors for Eimeria infection in calves is entering a group pen where older calves are already being kept.","PeriodicalId":50396,"journal":{"name":"Icelandic Agricultural Sciences","volume":"34 1","pages":"29-39"},"PeriodicalIF":0.2000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Icelandic Agricultural Sciences","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.16886/IAS.2021.03","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 2

Abstract

Faecal samples were collected from a total of 11 calves on three dairy farms (four from two farms and three from one) where calves generally thrive well and no anti-coccidial treatment is habitually carried out. One of the farms keeps calves in groups on hay/straw bedding, one keeps calves in pairs on plastic slats and then in groups on concrete slats, and the third one keeps calves in groups on concrete slats. Faecal consistency and the total number of Eimeria spp. oocysts per gram faeces (OPG) were determined and species identification was carried out by morphology. Eimeria oocysts were detected in all calves at some point of the study period, and diarrhoea was seen in 55% of the calves. The highest peak in oocyst excretion was 69,300 OPG. The first peak in oocyst excretion was seen 2-3 weeks after calves had been moved to group pens, and a second peak was seen 2-3 weeks later. Nine Eimeria species were found, including E. bovis and E. zuernii. The results are in accordance with previous studies showing that one of the risk factors for Eimeria infection in calves is entering a group pen where older calves are already being kept.

查看原文本刊更多论文

冰岛幼犊艾美耳球虫排泄模式

从三个奶牛场(四个来自两个奶牛场，三个来自一个奶牛场)共收集了11头小牛的粪便样本，这些奶牛场的小牛通常生长良好，通常没有进行抗球虫治疗。其中一个农场把小牛成群地放在干草/稻草垫料上，一个农场把小牛成对地放在塑料板条上，然后把它们成群地放在混凝土板条上，第三个农场把小牛成群地放在混凝土板条上。测定粪便黏稠度和每克粪便中艾美耳球虫卵囊总数，并进行形态鉴定。在研究期间的某个时间点，所有犊牛均检测到艾美耳球虫卵囊，55%的犊牛出现腹泻。卵囊排泄峰值为69,300 OPG。第一次卵囊排泄高峰出现在犊牛移至群圈2-3周后，第二次高峰出现在2-3周后。共发现9种艾美耳球虫，包括牛艾美耳球虫和猪艾美耳球虫。研究结果与先前的研究一致，表明犊牛感染艾美耳虫的风险因素之一是进入已经饲养较老犊牛的群体围栏。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Icelandic Agricultural Sciences AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Icelandic Agricultural Sciences is published annually, or more frequently. The deadline for submitting manuscripts that are intended to appear within that year is September. The journal is in English and is refereed and distributed internationally. It publishes original articles and reviews written by researchers throughout the world on any aspect of applied life sciences that are relevant under boreal, alpine, arctic or subarctic conditions. Relevant subjects include e.g. any kind of environmental research, farming, breeding and diseases of plants and animals, hunting and fisheries, food science, forestry, soil conservation, ecology of managed and natural ecosystems, geothermal ecology, etc.