NDLI: Plants of the Cerrado naturally selected by grazing sheep may have potential for inhibiting development of Haemonchus contortus larva

Content Provider	Springer Nature Link
Author	Morais Costa, Franciellen Soares, Ana Cláudia Maia Bastos, Gabriela Almeida Nunes, Yule Roberta Ferreira Geraseev, Luciana Castro Braga, Fernão Castro Santos Lima, Walter Duarte, Eduardo Robson
Copyright Year	2015
Abstract	Plant species naturally selected by sheep grazing in the Cerrado region of Brazil were assessed in vitro for activity against Haemonchus contortus. One year of observations showed the plant families in the region exhibiting greatest richness to be Fabaceae, Rubiaceae, Malpighiaceae, Bignoniaceae, Myrtaceae, and Annonaceae. Nine species commonly selected by grazing sheep showed variation in the selectivity index with respect to the dry and rainy seasons. Coproculture was conducted in five replicates of 11 treatments: ivermectin, distilled water, or dehydrated leaves of nine selected plant species administered at 333.3 mg g$^{−1}$ fecal culture. The dried powder of Piptadenia viridiflora and Ximenia americana leaves significantly reduced the number of infective larvae compared to the distilled water control. These species showed efficacy of over 85 % despite low concentrations of proanthocyanidin. High-performance liquid chromatography analyses of extracts of these plants showed major peaks of UV spectra characteristic of flavonoids. Those naturally selected plant species with high antihelminthic efficacy show promise for use in diet as an alternative control of H. contortus in sheep.
Starting Page	1321
Ending Page	1328
Page Count	8
File Format	PDF
ISSN	00494747
Journal	Tropical Animal Health and Production
Volume Number	47
Issue Number	7
e-ISSN	15737438
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-06-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Savanna/Cerrado Semiarid Vegetation structure Grazing sheep Phytochemical composition Haemonchus contortus Zoology Veterinary Medicine
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Food Animals

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