H M Gerber
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Explore the profile of H M Gerber including associated specialties, affiliations and a list of published articles.
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16
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43
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Recent Articles
1.
Van Wyk J, Gerber H
Onderstepoort J Vet Res
. 2000 Oct;
67(2):149-52.
PMID: 11028752
Infective larvae (L3) of two different batches of anthelmintic-susceptible Haemonchus contortus, cryopreserved for 15,6 and 15,7 years in liquid nitrogen appeared dead when examined 10-20 min after thawing. However, having...
2.
Van Wyk J, Gerber H, de Villiers F
Vet Parasitol
. 2000 Mar;
88(3-4):239-47.
PMID: 10714461
After cryopreservation for 13.3-15.8 years, the viability of the infective larvae (L3) of Trichostrongylus axei, T. colubriformis, Oesophagostomum columbianum, Haemonchus contortus, Ostertagia circumcincta, T. falculatus, Nematodirus spathiger, Chabertia ovina and...
3.
Van Wyk J, van Schalkwyk P, Bath G, Gerber H, Alves R
J S Afr Vet Assoc
. 1991 Dec;
62(4):171-5.
PMID: 1770493
A veld ram performance testing unit consists of an association of stud or commercial ram breeders, who compare the performance of selected rams under field conditions on common pastures. The...
4.
Van Wyk J, Bath G, Gerber H, Alves R
Onderstepoort J Vet Res
. 1990 Jun;
57(2):119-22.
PMID: 2216343
A strain of Trichostrongylus colubriformis from Nottingham Road, in Natal, was found to be solidly resistant to levamisole and morantel at the recommended dose levels. Untreated control sheep in fact...
5.
Van Wyk J, Gerber H, Alves R
Onderstepoort J Vet Res
. 1990 Mar;
57(1):1-6.
PMID: 2338992
Infective larvae of selected batched of the following nematode species from sheep and cattle were examined for survival and infectivity (by injection into either the abomasum, the duodenum, or the...
6.
Van Wyk J, Malan F, Gerber H, Alves R
Onderstepoort J Vet Res
. 1989 Mar;
56(1):41-9.
PMID: 2726192
During the past decade in South Africa there has been a continual increase in sheep of strains of gastrointestinal helminths resistant to the modern anthelmintics. Five strains of Haemonchus contortus...
7.
Van Wyk J, Malan F, Gerber H, Alves R
Onderstepoort J Vet Res
. 1987 Jun;
54(2):143-6.
PMID: 3306550
Two field strains of Haemonchus contortus, one from Pretoria on the Highveld and the other from White River in the Lowveld of the Transvaal, showed pronounced resistance to rafoxanide at...
8.
Van Wyk J, Gerber H, Alves R
Onderstepoort J Vet Res
. 1984 Dec;
51(4):217-21.
PMID: 6533514
Cryopreservation of the infective larvae (L3) of nematodes is being used increasingly for the routine maintenance of pure strains of nematodes in the laboratory. Gelatin capsules are frequently used to...
9.
Van Wyk J, Gerber H, Alves R
Onderstepoort J Vet Res
. 1982 Dec;
49(4):257-61.
PMID: 6764253
On the strength of a complaint of suspected resistance to closantel, a field strain of Haemonchus contortus was isolated from sheep on a farm near Pretoria and tested for resistance...
10.
Van Wyk J, Gerber H, Groeneveld H
Onderstepoort J Vet Res
. 1980 Sep;
47(3):147-58.
PMID: 7465167
A gelled-agar technique for worm recovery was adapted to facilitate the recovery of larval and adult nematodes from the total ingesta of large numbers of sheep. The technique was also...