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| Höglund, Johan. |
| Body weight gain (BWG) and gastrointestinal nematode challenge (GIN) were investigated in two genetically diverse groups of cattle. Thirty-two dairy calves (D = Swedish Red/Holstein) and 31 dairy × beef crosses (C = Swedish Red/Holstein × Charolais) pairwise matched by dam breed and birth dates, were monitored for ≈20 weeks on a pasture grazed by cattle in the previous year. At turn-out, animals (between 6 and 12 months age) from each genotype were either infected with 5000 third stage (L3) Ostertagia ostertagi (50%) and Cooperia oncophora (50%) larvae (H, high-exposure); or treated monthly with 0.5 mg ivermectin (Noromectin®, Pour-on) per kg bodyweight to remove worms ingested (L, low-exposure). Animals were weighed every fortnight and individual BWG was... |
| Tipo: Journal paper |
Palavras-chave: Animal husbandry; Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/33708/1/Ho%CC%88glund%20Vet%20Par%202017.pdf |
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| Blanco-Penedo, Isabel; Höglund, Johan; Fall, Nils; Emanuelson, Ulf. |
| The association between exposure to gastrointestinal nematode (GIN) parasitism, indicated by elevated individual optical density ratio (ODR) to Ostertagia ostertagi, and individual milk production was analysed in dairy cows. The multivariable analysis also accounted for other sources of variation than exposure to GIN parasitism. Intra- and inter-herd variation in parasite exposure was also evaluated. Organic and conventional herds located in south-east Sweden (13 herds per system) were visited during the housing period 2009-2010. Levels of all major pasture-borne helminths in Sweden (O. ostertagi, Fasciola hepatica and Dictyocaulus viviparus) were determined in bulk tank milk, cow milk and serum (only for O. ostertagi). Their specific antibodies were... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Animal husbandry; Health and welfare. |
| Ano: 2012 |
URL: http://orgprints.org/25066/1/vetpar%20188%2093_98.pdf |
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| Lindgen, Kristina; Lindahl, Cecilia; Höglund, Johan; Roepstorff, Allan. |
| Organically raised pigs are at particular risk of being infected with pasture borne endoparasites, but the housing and management system may nevertheless have a great impact on transmission. In the present study pasture rotation routines on six pig farms representing two different organic management systems were compared; 1) a mobile system, in which the pigs during the summer were living in huts on pastures that were included in a long-term crop rotation scheme, while they during the winter were stabled with access to a concrete yard; 2) a stationary system, in which the pigs all year round were stabled with access to outdoor pastures in the summer time and a concrete yard in the winter. On one farm per system, the faecal excretion of nematode eggs from... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm nutrient management; Buildings and machinery; Pigs; Health and welfare. |
| Ano: 2008 |
URL: http://orgprints.org/12231/1/Lindgren_12231_ed.rtf |
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