Resistance to synthetic anthelmintics has become a worldwide threat to various livestock species. The use of nutraceuticals and livestock management practices is being explored as an alternative to this issue. Foods containing a high amount of tannins are known to decrease gastrointestinal parasite infection. It is known that goats self-medicate by ingesting tannin-rich feed mixtures that they often avoid (Villalba et al. 2010). Studies have offered animals a particular mixture of feed that is known to be medicinal to decrease a parasite burden. In this study, we offered a tannin-rich plant in a concentrated pellet form so it could be more applicable to livestock management practices. We addressed our issue by using 20 kids that were separated into two groups. One group was dosed with parasites, PK, and another group was not dosed with parasites, NPK. These kids were observed in a 30-day experiment to determine if they dosed themselves efficiently with a tannin-rich plant, sericea lespedeza, Lespedeza cuneata, when the need arose. Each group was conditioned and given preference tests between alfalfa, a feed they were familiar with, and sericea lespedeza, the tannin-rich feed. Fecal samples (FEC) were taken periodically to monitor the eggs per gram of the gastrointestinal nematode, Haemonchus contortus. Eggs per gram decreased in the parasitized group throughout the experiment. The parasitized group was found to be self-medicating with the correct doses of sericea lespedeza specialized to their internal needs after they were conditioned, whereas there were no significant results that the non-parasitized group chose sericea lespedeza over alfalfa.
|Commitee:||Berry, Calvin, Povinelli, Daniel, Wang, Yi-Hong|
|School:||University of Louisiana at Lafayette|
|School Location:||United States -- Louisiana|
|Source:||MAI 56/01M(E), Masters Abstracts International|
|Subjects:||Agriculture, Animal sciences, Parasitology|
|Keywords:||Alternative anthelmintics, Animal behavior, Condensed tannins, Gastrointestinal nematodes, Haemonchus contortus, Sericea lespedeza|
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