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|Title: ||The influence of the oesophageal groove in goats on anthelmintic efficacy|
|Author: ||Drummond, Amanda|
|Degree: ||Bachelor of Science (Honours)|
|Institution: ||Lincoln University|
|Date: ||1997 |
|Item Type: ||Dissertation|
|Abstract: ||Twenty-four 1 and 2 year old goats carrying natural gastrointestinal nematode infections
(mean faecal egg count (FEC) = 3333 epg) were allocated to one of three treatment groups:
intraruminally injected (n = 8) or in capsule form (n = 8) Synanthic R.I. (Coopers Animal
Health NZ Ltd, New Zealand. 225 g/l oxfendazole; 1 ml/l0 kgBW) or orally administered (n =8) conventional volume Systamex™ (Mallinckrodt Veterinary, New Zealand. 22.65 g/l
oxfendazole; 1.0 ml/5 kgBW). Treatments administered in conjunction with glucose
(0.110g/kgBW). Blood samples collected over a three hour period post treatment
administration showed a similar area under the curve (AUC) of plasma glucose concentration
following conventional volume orally administered anthelmintic to those goats known to
have anthelmintic deliberately placed in the rumen.
Regardless of treatment allocation, FEC collected from goats -1, 4, 8, 12, 16, 20 days after
anthelmintic administration showed a similar pattern of reduction in egg counts until day 8,
egg counts from then on increasing until the completion of the trial.
The similarity of FEC and glucose AUC between the treatment groups indicates that when
goats are drenched in such a way that the anthelmintic is administered over the tongue and
directed into the oesophagus, activation of the oesophagus groove does not occur.
A significant age/faecal egg count interaction (p = 0.024) was observed prior trial
commencement, suggesting that there may be an age-immune interaction in goats to
|Supervisor: ||Familton, Alex|
|Persistent URL (URI): ||http://hdl.handle.net/10182/3727|
|Access Rights: ||Digital thesis can be viewed by current staff and students of Lincoln University only. Print copy available for reading in Lincoln University Library. May be available through inter-library loan.|
|Appears in Collections:||Theses and Dissertations with Restricted Access|
Department of Agricultural Sciences
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