Epidemiological study of parasite infection in a cow-calf beef herd in Quebec

Ranjan, S.; Trudeau, Caroline; Prichard, R. K.; Piché, Claude A.; Bauck, Stewart

doi:10.1016/0304-4017(92)90070-p

Cited by 13 publications

(12 citation statements)

References 9 publications

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“…in the current study may be attributable to the genera's ability to withstand winter conditions on pasture (Smith 1972) and within the animal in a dormant state of hypobiosis (Ranjan et al 1992), thus increasing the rate of infection during subsequent grazing periods. Unlike Smith (1972), Ranjan et al (1992) found O. ostertagi also adapted to survive Canadian winters by entering a state of hypobiosis, possibly accounting for the equally observed presence of the Strongyle genus in the current study's heifers. Treatment and control heifers had similar BW gains each week and achieved similar total average BW.…”

mentioning

confidence: 82%

Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers

et al. 2015

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Shepley, E., Vasseur, E., Bergeron, R., Villeneuve, A. and Lachance, S. 2015. Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers. Can. J. Anim. Sci. 95: 533–537. Bioactive forages, such as birdsfoot trefoil, may serve as an alternative to anthelmintic drugs in pastured dairy heifers. Differences in parasite burden and growth were examined between eight treatment heifers fed a birdsfoot trefoil mixture and nine control heifer fed alfalfa silage 45-min per day for 12 wk. A significant 3.8- to 9.4-fold reduction in fecal egg counts was observed for treatment heifers at weeks 5, 9, 11 and 12. No treatment effect was found for weight gain. Our results suggest that birdsfoot trefoil may reduce parasite fecal egg counts in pastured dairy heifers without detrimental impact on growth.

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mentioning

confidence: 82%

Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers

et al. 2015

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“…Although studies conducted in the eastern provinces do not adequately reflect the temperature and moisture regimes of the semi-arid regions of Canada and hence the ability of eggs and larvae to overwinter is not likely accurate, these studies (e.g. Slocombe and Curtis, 1989;Ranjan et al, 1992) remain a useful comparison as they do reflect the transmission patterns for first season grazing calves. Cows, shedding low levels of eggs are considered the main source of infections for calves (Ranjan et al, 1992).…”

Section: Introductionmentioning

confidence: 98%

“…Slocombe and Curtis, 1989;Ranjan et al, 1992) remain a useful comparison as they do reflect the transmission patterns for first season grazing calves. Cows, shedding low levels of eggs are considered the main source of infections for calves (Ranjan et al, 1992). Transmission to calves occurs through the early summer months, primarily June-October, and calves have increasing worm burdens during that time.…”

Section: Introductionmentioning

confidence: 99%

Annual variation in serum antibody concentrations against gastrointestinal nematodes in beef calves from semi-arid rangelands of western Canada

Colwell¹,

Beck²,

Goater³

et al. 2014

Veterinary Parasitology

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“…Several investigators studied the prevalence of gastrointestinal nematodes in cow-calf systems under very different geographical and climatic conditions (Ranjan et al, 1992;Hertzberg et al, 1995;Couvillion et al, 1996;Busato et al, 1997;Agneessens et al, 1997). Although diarrhoea was the most frequently diagnosed symptom in Swiss cow-calf farms, helminths were only found in 8 % of diarrhoeic calves .…”

Section: Discussionmentioning

confidence: 99%

Cow–Calf Herds in Eastern Germany: Status Quo of Some Parasite Species and a Comparison of Chemoprophylaxis and Pasture Management in the Control of Gastrointestinal Nematodes

Wacker¹,

Roffeis

Conraths

1999

Journal of Veterinary Medicine, Series B

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Infections with gastrointestinal parasites (Eimeria spp., Cryptosporidium spp., Buxtonella sulcata, Fasciola hepatica, Moniezia spp. and trichostrongyles) and lungworms were monitored in five cow-calf herds in the north German lowlands. Estimated prevalences of infections with Eimeria spp. (predominantly Eimeria bovis) ranged between approximately 2 and 48%. The highest prevalences were found during late summer and autumn. On one farm Cryptosporidium spp. were detected in July and August (prevalence: 8.5 +/- 2.7% and 6.7 < 2.0%). The latter finding coincided with diarrhoea in many calves. Buxtonella sulcata was found during the entire study period in highly variable estimated prevalences ranging between zero and 73%, but without any obvious association with clinical disease. Fasciola hepatica was detected on four out of five farms at estimated prevalences of approximately 1-20%. Lungworm infections played a minor role in at least three of five study herds. The estimated prevalence of trichostrongyle infections rose from August until November whereas the intensity of infection did not change significantly. No difference in the intensity of infection could be detected between one farm on which infections with gastrointestinal nematodes were controlled only by moving the animals to an uninfected pasture in July, and three other herds on which strategic anthelmintic control was in place.

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Epidemiological study of parasite infection in a cow-calf beef herd in Quebec

Cited by 13 publications

References 9 publications

Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers

Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers

Annual variation in serum antibody concentrations against gastrointestinal nematodes in beef calves from semi-arid rangelands of western Canada

Cow–Calf Herds in Eastern Germany: Status Quo of Some Parasite Species and a Comparison of Chemoprophylaxis and Pasture Management in the Control of Gastrointestinal Nematodes

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