scholarly journals Assessment of the nematocidal activity of metallocenyl analogues of monepantel

2016 ◽  
Vol 45 (44) ◽  
pp. 17662-17671 ◽  
Author(s):  
Jeannine Hess ◽  
Malay Patra ◽  
Abdul Jabbar ◽  
Vanessa Pierroz ◽  
Sandro Konatschnig ◽  
...  
Keyword(s):  
Haemonchus Contortus ◽  
Trichostrongylus Colubriformis ◽  
Dependent Activity ◽  
Nematocidal Activity

Ferrocenyl and ruthenocenyl analogues of the nematocidal drug monepantel show organometallic-dependent activity against Haemonchus contortus and Trichostrongylus colubriformis.

Studies on resistance of sheep to infestation with Haemonchus contortus and Trichostrongylus spp. and on the immunological reactions of sheep exposed to infestation. VI. The influence of age and nutrition on resistance to Trichostrongylus colubriformis.

1953 ◽  
Vol 4 (3) ◽  
pp. 340 ◽  
Author(s):  
DF Stewart ◽  
HMcL Gordon
Keyword(s):  
Haemonchus Contortus ◽  
High Protein Diet ◽  
High Protein ◽  
Protein Diet ◽  
Previous Exposure ◽  
Trichostrongylus Colubriformis ◽  
The Poor ◽  
Experimental Infestation ◽  
Immunological Reactions ◽  
Striking Contrast

Of 10 sheep aged 3-4 years which had been born and maintained under worm-free conditions, 7 died from an initial experimental infestation with Trichostrongylus colubriformis. This mortality was in striking contrast to the results with nine-months-old sheep which had had previous experience of infestation. It demonstrated that resistance to T. colubriformis could not be ascribed to increasing age. In a group fed on a low plane of nutrition and given 40,000 or 100,000 T. colubriformis larvae, more sheep developed infestations than did similar sheep in groups given an adequate or a high-protein diet. in lambs which had been kept worm-free since birth and then dosed with 20,000 T. colubriformis larvae, infestation developed almost equally in those fed on the poor diet and those fed on the high-protein diet. The groups fed on the low plane of nutrition successfully withstood subsequent challenge doses of up to 300,000 T. colubriformis larvae. In these experiments, previous exposure to infestation apparently exercised more influence on resistance than did diet.

scholarly journals Ellagitannins Inhibit the Exsheathment of Haemonchus contortus and Trichostrongylus colubriformis Larvae: The Efficiency Increases Together with the Molecular Size

2020 ◽  
Vol 68 (14) ◽  
pp. 4176-4186 ◽  
Author(s):  
Maarit Karonen ◽  
Jeffrey R. Ahern ◽  
Lucie Legroux ◽  
Jussi Suvanto ◽  
Marica T. Engström ◽  
...  
Keyword(s):  
Haemonchus Contortus ◽  
Molecular Size ◽  
Trichostrongylus Colubriformis

scholarly journals Interaction between abomasal blood feeder Haemonchus contortus and intestinal mucosal browser Trichostrongylus colubriformis during co-infection in Boer goats

2020 ◽  
Vol 287 ◽  
pp. 109274
Author(s):  
N. Hayyan Basripuzi ◽  
Reuben S.K. Sharma ◽  
Z. Norhadila ◽  
Z.S. Shahar ◽  
M.S. Nor-Dilaila ◽  
...  
Keyword(s):  
Haemonchus Contortus ◽  
Trichostrongylus Colubriformis ◽  
Boer Goats

The response to desiccation of eggs of Trichostrongylus colubriformis and Haemonchus contortus (Nematoda: Trichostrongylidae)

Parasitology ◽  
1970 ◽  
Vol 61 (2) ◽  
pp. 195-204 ◽  
Author(s):  
P. J. Waller ◽  
A. D. Donald
Keyword(s):  
Relative Humidity ◽  
Haemonchus Contortus ◽  
Stages Of Development ◽  
Trichostrongylus Colubriformis

Eggs of T. colubriformis and H. contortus were separated from faeces. Their response to desiccation was compared by subjecting them, at different stages of development, to a range of relative humidities. Many eggs of T. colubriformis at all stages of development survived desiccation at relative humidities down to 75%, whereas the only H. contortus eggs to survive were those exposed to the highest relative humidity and which had already undergone a substantial amount of development before desiccation.

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