TY  - JOUR
T1  - Experimental Infestation to Gastrointestinal Nematodes in Sheep (Clinical and Parasitological Finding)
AU - , A. Nematollahi AU - , Gh. Moghaddam AU - , F. Nyiazpour 
JO  - Journal of Animal and Veterinary Advances
VL  - 6
IS  - 3
SP  - 427
EP  - 429
PY  - 2007
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2007.427.429
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2007.427.429
KW  - Experimental infestation
KW  -nematodes
KW  -parasitological finding
KW  -sheep
KW  -worms
AB  - This survey was designed to study the parasitological features and clinical symptoms due to the infestation of gastrointestinal nematodes in sheep. Two sheep naturally infested to gastrointestinal nematodes were  obtained  and  were  selected  as  egg  donors.  For  experimental  infestation  eight  free  worm   lambs  (5-6 months old) were selected and 50000 of third stage larvae of gastrointestinal nematodes that were obtained from eggs of donor sheep were fed to each of them. Four other lambs received placebo (control group). Daily stools from infected sheep were taken for parasitological examinations. Body weight and clinical symptoms were recorded. Twelve, 21, 35 and 60 days after infestation two lambs were slaughtered and established worms from fed larvae were counted. Results were analyzed by ANOVA. No clinical symptoms (except anemia) were found in the animals during this study however body weight is monitored during 60 days post infestation and indicated a significantly difference between live weight in infested and control groups. The adult worms occurred from fed larvae were 2665 (5.3%) and maximum E.P.G at 35th day post infestation was recorded. The lengths of male and female worms in the abomasums were 13.2 and 20.8 mm respectively. Also worms at 35th day post infestation had high size.
ER  -