Dynamics of Ostertagia spp. and Cooperia oncophora in field-grazed cattle from weaning to 2 years old in New Zealand, with particular reference to arrested development

Bisset, S.A.; Marshall, E.D

doi:10.1016/0304-4017(87)90135-x

Cited by 19 publications

(11 citation statements)

References 16 publications

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“…The correlation between the antibody responses to Cooperia and Ostertagia adult antigens are a reflection of the worm burden carried. It has been shown in New Zealand (Bisset & Marshall 1987) and in Europe Borgsteede et al 2000) that the burden of Ostertagia is more consistent than Cooperia.…”

Section: Herd Meansmentioning

confidence: 99%

Sire effects on antibodies to nematode parasites in grazing dairy cows

Morris

Cullen

Green

et al. 2002

New Zealand Journal of Agricultural Research

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A study was carried out on New Zealand dairy cows at pasture, to test for evidence of genetic differences in immunological response to nematode parasites. Nine widely used HolsteinFriesian artificial insemination bulls, with daughters in many herds, were evaluated for nematode antibodies by sampling milk of their daughters in mid lactation in each of 20 North Island herds. One milk sample was taken from each cow (ranging from 4 to 11 years of age), during a routine herd test in the period from mid November 2000 to early February 2001. Assays were undertaken subsequently on pooled samples of skim milk (0.2 ml per cow; up to 20 cows per sire x herd) to assess antibodies to both the infective third larval (L3) and adult parasitic stages of Cooperia oncophora and Ostertagia ostertagi. Sire effects were significant for all four antibody types (P < 0.001). anti-parasite antibody levels were present in mature lactating dairy cows at pasture in New Zealand, with repeatabilities of sire means across herds of 0.29-0.39, and that sire effects on antibody levels to two different nematode parasite species were highly correlated (for antibodies to either the L3 or the adult stages).

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Section: Herd Meansmentioning

confidence: 99%

Sire effects on antibodies to nematode parasites in grazing dairy cows

Morris

Cullen

Green

et al. 2002

New Zealand Journal of Agricultural Research

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“…may still be dominant in terms of the numbers of infective larvae on pasture, the percentage of Cooperia spp. eggs being shed by weaners has generally diminished substantially (Brunsdon 1971;Bisset & Marshall 1987). This reflects the tendency for Cooperia spp.…”

Section: Development Of Acquired Immunity To Nematode Infectionmentioning

confidence: 96%

“…Virtually all published information on the epidemiology of gastrointestinal nematode infection in cattle under New Zealand's all-year grazing conditions relates to dairy/dairy-beef type animals which are generally "hand-reared" and weaned in late spring (Brunsdon 1968(Brunsdon , 1969(Brunsdon , 1971Brunsdon & Vlassoff 1981;Bisset & Marshall 1987). There is virtually no published information on nematode epidemiology in traditionally raised (single-suckled) beef cattle in this country, although an analysis of Animal Health Surveillence data by Brunsdon (1980a) suggested that ostertagiosis may be found throughout the country and under all the principal management systems (i.e.…”

Section: Epidemiology Of Parasitic Gastroenteritis In Cattle In New Zmentioning

confidence: 99%

“…The species composition of the infestation present on pasture grazed by calves in their first year generally consists predominantly of C. oncophora, Ostertagia spp., and T. axei, of which C. oncophora are numerically dominant, followed by Ostertagia spp. and T. axei, respectively (Bisset & Marshall 1987;Vlassoff pers. comm.…”

Section: Seasonal Dynamics Of Free-living Stagesmentioning

confidence: 99%

“…1985). However, in cattle over 1 year old, T. axei often produces a high proportion of the nematode eggs being shed (Brunsdon 1980a;Bisset & Marshall 1987). Thus, despite the fact that faecal egg counts in cattle over 1 year old are usually low (i.e.…”

Section: Seasonal Dynamics Of Free-living Stagesmentioning

confidence: 99%

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Helminth parasites of economic importance in cattle in New Zealand

Bisset

1994

New Zealand Journal of Zoology

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New Zealand farmers are currently spending about $27.9 million/yr on anthelmintics to control helminth parasites in cattle. Productivity trials carried out over the last 30 years show that the benefit-cost ratio of an effective drench programme is likely to be high, particularly in young animals in their first year, which tend to be very susceptible to infection. In New Zealand, cattle have been recorded as the definitive host of at least 27 nematode species, two trematode species, and one (possibly two) cestode species. Of these, three gastrointestinal nematode species/species complexes, Ostertagia ostertagi/O. lyrata, Trichostrongylus axei, and Cooperia oncophora/C. surnabada are generally considered to be of greatest and most widespread economic importance. In New Zealand, as overseas, bovine ostertagiosis occurs in two clinical forms, referred to as Type I and Type II. Type I ostertagiosis is the normal form of the disease seen in weaner cattle, while Type II ostertagiosis results from the rapid maturation of large burdens of arrested fourth stage larvae of Ostertagia spp., which can accumulate in the stomach wall of yearling and older cattle. While some of the nematode species that have been recorded from cattle were simply incidental infections resulting from cross transmission from different host species (particularly sheep), one species complex, Ostertagia leptospicularis/ kolchida, which is normally considered to be a cervid parasite, is known to cycle readily in young cattle and has been implicated in clinical disease. The liver fluke Fasciola hepatica can be economically significant in cattle under certain local conditions but, while its distribution has increased markedly over the last 20 years, it is still generally considered to be a relatively minor problem in the national sense.

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Arrested larval development in cattle nematodes

Armour

Duncan

1987

Parasitology Today

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Dynamics of Ostertagia spp. and Cooperia oncophora in field-grazed cattle from weaning to 2 years old in New Zealand, with particular reference to arrested development

Cited by 19 publications

References 16 publications

Sire effects on antibodies to nematode parasites in grazing dairy cows

Sire effects on antibodies to nematode parasites in grazing dairy cows

Helminth parasites of economic importance in cattle in New Zealand

Arrested larval development in cattle nematodes

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