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Abstract

A short review of serum pepsinogen (SP) analysis and its applications is presented. Blood pepsinogen (serum or plasma) content in calves experimentally infected with Ostertagia ostertagi larvae was investigated by estimating free tyrosine after incubation at 37 deg C using Folin-Ciocalteu colour...

Author(s)
Joergensen, R. J.; Henriksen, S. A.; Sejrsen, K.; Nansen, P.
Citation
Nordisk Veterinaermedicin, 1976, 28, 4/5, pp 210-216
Abstract

Six groups, each of six calves, either grazed the same paddock over an entire season, or were moved before the July rise in herbage contamination to paddocks not grazed earlier in the same season. A comparison was also made between animals receiving no anthelmintic treatment, animals treated 3...

Author(s)
Henriksen, S. A.; Joergensen, R. J.; Nansen, P.; Sejrsen, K.; Larsen, J. B.; Klausen, S.
Citation
Veterinary Parasitology, 1976, 2, 3, pp 259-272
Abstract

The performance of six groups of six calves each from a previous field experiment [VB 47, abst. 6208] was followed from the beginning of housing until turning out seven months later. When housed the groups harboured different burdens of Ostertagia ostertagi and had corresponding weight gain...

Author(s)
Joegensen, R. J.; Nansen, P.; Henriksen, S. V.; Sejrsen, K.; Larsen, J. B.; Klausen, S.
Citation
Veterinary Parasitology, 1978, 4, 1, pp 55-68
Abstract

Young cattle exposed to a heavy natural Ostertagia infection had low serum albumin and high IgG1, IgM, and IgA levels compared with lightly infected animals. IgG2 levels were lower than normal but similar in the two groups. It is concluded that parasitic infection accelerates the synthesis of...

Author(s)
Jensen, P. T.; Nansen, P.
Citation
Acta Veterinaria Scandinavica, 1978, 19, 4, pp 601-603
Abstract

The abomasa of 5 naturally infected cows were thoroughly washed and then immersed in normal saline for 4 to 5 h at 40 deg C. The abomasa were then dipped several times in water at 40 deg C and discarded. The saline and the water were sieved (mesh size 38 mu m) and the residue was prepared for...

Author(s)
Downey, N. E.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 69-72
Abstract

In Glasgow, Scotland, 10 soil samples of surface area 28 cm2 were taken to a depth of 10 cm from a permanent cattle pasture monthly between August 1978 and July 1979. Ostertagia ostertagi larvae were found on each occasion in the root-mat layer, in the soil down to 5 cm and at 5-10 cm, and the...

Author(s)
Armour, J.; Bairden, K.; Al Saqury, I. M.; Duncan, J. L.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 277-282
Abstract

By means of tracer calves it was shown that in Sweden larval inhibition of Ostertagia ostertagi occurs as early as August. It increased to over 90% at the end of October. In the abomasa of young cattle collected from slaughterhouses between October and April about 94% of the O. ostertagi were...

Author(s)
Nilsson, O.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol. 9.), 1981, pp 295-300
Abstract

Experiments in Denmark since 1974 have shown that daily weight gains by calves at pasture are increased when control measures against ostertagiasis are applied. Herbage larval counts and serum pepsinogen analyses confirmed the efficacy of the control measures used. In Denmark the different control...

Author(s)
Foldager, J.; Sejrsen, K.; Nansen, P.; Jorgensen, R. J.; Henriksen, S. A.; Hansen, J. W.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol. 9.), 1981, pp 389-411
Abstract

Several anthelmintics suppressed the output of Ostertagia ostertagi and Cooperia oncophora eggs and Dictyocaulus viviparus larvae when administered at low dosage in the drinking water to artificially infected calves kept indoors. Under grazing conditions, morantel, levamisole and oxfendazole...

Author(s)
Downey, N. E.; O'Shea, J.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol. 9.), 1981, pp 413-432
Abstract

The effect of stocking rate on the acquisition of O. ostertagi infection and performance of yearling calves of a marshland area in the southwest of Jutland, Denmark, was examined. During the early part of the grazing season, when grass growth was high and pasture infectivity low, there was little...

Author(s)
Nansen, P.; Foldager, J.; Hansen, J. W.; Henriksen, S. A.; Jørgensen, R. J.
Citation
Veterinary Parasitology, 1988, 27, 3-4, pp 325-335

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