Nitrogen and mineral balance of lambs artificially infected with Haemonchus contortus and fed tanniferous sainfoin (Onobrychis viciifolia)

Journal of Animal Science
Anna ScharenbergFrigga Dohme

Abstract

Tanniferous temperate legumes are assumed to possess anthelmintic properties, but it is unclear whether this is the direct result of condensed tannins (CT) or is mediated indirectly via an improved metabolic protein supply. A metabolism experiment was conducted to differentiate between these factors by feeding the CT plant sainfoin (19.7% CP in DM) to lambs infected with the abomasal blood-sucking nematode Hemonchus contortus. A total of 18 infected lambs were fed sainfoin either untreated or treated with polyethylene glycol, a CT-inactivating agent, or a grass-clover mixture (13.2% CP in DM) over 3 wk (n = 6). Six uninfected lambs received the grass-clover mixture as a control. In addition to indicators of infection (fecal egg count, packed-cell volume, abomasal worm burden, and serum protein), nutrient digestibility, the balance of N and selected minerals, ruminal fluid characteristics, and plasma AA levels were determined mostly in the final experimental week. The specific effects of the sainfoin CT, the extra CP with sainfoin, and the infection were statistically evaluated by contrast analysis. The sainfoin CT exerted no beneficial effects on resilience to nematode infection and exerted only minor effects on ruminal ammonia...Continue Reading

References

Jan 1, 1988·The British Journal of Nutrition·J B RoweP H Holmes
Feb 1, 1993·The Proceedings of the Nutrition Society·P H Holmes
Feb 28, 2001·International Journal for Parasitology·H Hoste
Apr 25, 2006·Trends in Parasitology·Hervé HosteSimone O Hoskin

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Citations

Apr 12, 2016·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·A K PathakK Sharma

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Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.

Anthelmintics (ASM)

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