Results 111 to 120 of about 823 (166)

Radioactive Antibody Studies on Dictyocaulus filaria Infection

Research in Veterinary Science, 1971
SUMMARY Rabbit anti-sheep 7S immunoglobulins labelled with 131I were used for the estimation of immunoglobulin binding to the juvenile stage of Dictyocaulus filaria. The method showed the ability to detect the quantity of specific antibodies in sera of lambs infected with D. filaria.
M, Movsesijan, R, Lalić
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The Spermatogenesis of Dictyocaulus filaria (Nematoda, Trichostrongyloidea)

The Journal of Parasitology, 1985
A cytological study was carried out, using male Dictyocaulus filaria, that revealed the diploid number of chromosomes was 2n = 11 and the sex determining mechanism was XO. The behaviour of the chromosomes in the different stages of meiosis was also investigated. Cross, open ring and rod bivalents were observed in diakinesis. The chromosomes appeared to
C, Cutillas, A, Valero, J, González-Castro, D C, Guevara   +3 more
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Cross Resistance to Dictyocaulus viviparus Produced by Dictyocaulus filaria Infections in Calves

Research in Veterinary Science, 1967
SUMMARY Calves which were infected with Dictyocaulus filaria were more resistant to a challenge infection of D. viviparus than previously uninfected animals. The reduction in the D. viviparus worm burden was 67% at 10 and 24 days, and 76% at 30 days after challenge.
J W, Parfitt, I J, Sinclair
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The epidemiology of Dictyocaulus filaria in north east England

Research in Veterinary Science, 1977
The seasonal pattern of Dictyocaulus filaria infection in four flocks of sheep under field conditions was studied by faecal examination for larvae. The prevalence of infection in lambs was low in spring and summer but increased in late autumn or winter, then fell again to a low level by May. However, most lambs became infected at some time during their
G J, Gallie, R J, Thomas, V J, Nunns
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Experimental studies on anaemia in sheep infected with Dictyocaulus filaria

International Journal for Parasitology, 1989
The pathogenesis of Dictyocaulus filaria induced anaemia was experimentally investigated. Nineteen Dorset-Muzaffarnagri male lambs were divided into two groups of 13 and six. The lambs in the former group received a primary infection dose of 2000 D. filaria infective larvae, whereas animals in the latter group were kept as uninfected controls.
T K, Bhat, R L, Sharma, K P, Jithendran
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Immunization with irradiated larvae against Dictyocaulus filaria in young lambs

Veterinary Parasitology, 1981
In the lungworm-endemic areas of Kashmir, 6-10 week old lambs of Karnah and Kashmir Merino breeds were vaccinated with two doses of 50 kR gamma-irradiated larvae of Dictyocaulus filaria, given a month apart. Assessed on the basis of reduced prevalence and significantly lower faecal larval output over an eight-month observation period, vaccinated lambs ...
D N, Dhar, R L, Sharma
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The Effect of Dictyocaulus filaria on the Resistance of Guinea-pigs to Dictyocaulus viviparus

Research in Veterinary Science, 1967
SUMMARY Young male guinea-pigs which were given between 300 and 450 Dictyocaulus filaria infective larvae showed signs of htngworm injection 2 to 4 weeks after dosing. A further, larger dose of D. filaria larvae produced only slight symptoms of disease in these animals.
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Awasi sheep as host for lungworm, Dictyocaulus filaria (Rudolphi, 1809)

Veterinary Parasitology, 1977
Abstract Groups of Awasi lambs were infected with 50, 125, 250 and 500 infective larvae of Dictyocaulus filaria per kg body weight. The infection caused decreased weight gain, increased rate of respiration, and respiratory lesions. At 250 larvae/kg body weight, or more, infection was fatal to half of the lambs infected.
Munaf H. Jabir, Jawad K. Kadhim, K.S. Singh   +2 more
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Effect of dictyocaulus filaria infection on the osmotic fragility of sheep erythrocytes

Veterinary Parasitology, 1989
The osmotic fragility of erythrocytes in lambs experimentally infected with Dictyocaulus filaria was studied weekly for 71 weeks. In acute infection, the erythrocytic fragility increased from the third week of infection onwards, reached its peak by the eleventh week and declined thereafter. However, in the chronic immune-carrier stage, this increase in
R L, Sharma, T K, Bhat, D N, Dhar
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Zur Empfänglichkeit der Wiederkäuer für Dictyocaulus viviparus und Dictyocaulus filaria (Strongyloidea, Nematoda)

Zentralblatt für Veterinärmedizin Reihe B, 1969
ZusammenfassungIn Übertragungsversuchen erwies sich die Sömmering‐Gazelle (Gazella soemmeringi) und die Hirschziegenantilope (Antilope cervicapra) für D. viviparus und Dictyocaulus filaria als empfänglich. Bei der Sitatunga‐Antilope (Limnotragus selousi) ging nur die D. filaria‐Infektion an. In einem Versuch mit einer Ziege waren 18 Tage p. i.
K. Enigk, J. Hildebrandt
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