02641nam a22001577a 4500003000400000005001700004008004100021040000900062100002800071245015000099260005500249300005200304500203000356500004302386504005402429OSt20250404140358.0250404b        |||||||| |||| 00| 0 eng d  cNVSU  aAlmazan, Erwin Chito V.  aEffects of dried tobacco (nicotiana tabcum) leaves on the egg output of gastrointestinal parasites of sheep (ovis aries)/cErwin Chito V. Almazan  aBayombong:bNueva Vizcaya State University,c2009.  ax, 23 leaves :billustrations, photos ;c28 cm.  aThe study was conducted to determine the anthelmintic effects of dried tobacco leaf on the egg output of gastrointestinal parasites of sheep. Specifically, the study aimed to establish the efficacy of dried tobacco leaves as alternative and economic dewormers. 

The study was conducted at the Valencia Farms in Diffun, Quirino and at Tapaya Diagnostic Center in Bagabag, Nueva Vizcaya. Sixteen sheep whose weight ranged from 21 kg to 23 kg were confined in individual pens and were administered with the designated dosage of dried tobacco leaves and albendazole (Impregon) The treatments were single dose only and were observed within a 16-day period. 

Initial results after 4 days post treatment showed that the T1 or albendazole registered the highest reduction of gastrointestinal parasitic eggs at 70.47% while the dried tobacco leaves (DTL) treatments at varying dosages also registered reduced egg count but at a lower rate. 

Results on the 8th day after the administration of DTL, there was a significant difference among the treatments Comparison of mean showed that T4 was highly significant against T1, T2, and 13; while the efficacies of T1 and T2 were comparable; highly significant between 11 and 13 and significant between T2 and T3.
At this stage, the efficacy of DTL as dewormer for T1and T4were highly effective while T2and T3were just effective based on the standard by Reik and Keith. 

On the 12th and 16th day after administration of varying dosages of DTL, the EPG and FECR were already comparable to that of T1 (albendazole) or commercial dewormer.  At this point, it was safe to conclude that DTL treatments administered were also as highly effective as commercial dewormer in reducing parasitic eggs counts. It was noted that the treatments considerably reduced the eggs considering different factors such as sanitation of the surroundings, the daily ingestion of fodders, which may contain parasites, and cleanliness of water being taken in and containers being used by the experimental animals.
  aThesis (Doctor of Veterinary Medicine)  aIncludes appendix and bibliographical references.