Effect of sericea lespedeza (Lespedeza cuneata) fed as hay, on natural and experimental Haemonchus contortus infections in lambs

Lange, Klaus; Olcott, D.D.; Miller, J. E.; Mosjidis, J. A.; Terrill, T.H.; Burke, J.M.; Kearney, Michael T.

doi:10.1016/j.vetpar.2006.06.001

Cited by 119 publications

(80 citation statements)

References 24 publications

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“…Moore et al (2008) reported that feeding SL hay can reduce FEC and increase performance of goats compared with Bermuda grass (BG) hay. The effect of reduced GIN infection levels in kids fed SL hay confirms the reports with sheep and goats fed this forage in different dried forms (Shaik et al 2006;Lange et al 2006).…”

Section: Resultssupporting

confidence: 86%

“…Shaik et al (2006) reported a predominantly direct effect of SL hay on GIN in goats with approximately 70 % less adult H. contortus compared with animals fed BG hay. Lange et al (2006) suggested that the effect of SL hay feeding on GIN in sheep was a combination of reduced fecundity and direct killing of the worms. Both direct and indirect effects against GIN infection were apparently evident in the present study.…”

Section: Resultsmentioning

confidence: 99%

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Effect of condensed tannins supplementation through leaf meal mixture on voluntary feed intake, immune response and worm burden in Haemonchus contortus infected sheep

et al. 2014

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The study was carried out to assess the effect of condensed tannins (CT) supplementation through leaf meal mixture (LMM) on feed intake, humoral [Immunoglobulin G (IgG)], cell mediated immune response (CMI) and faecal egg counts in Haemonchus contortus infected sheep. Eighteen sheep were randomly divided into three groups (negative control-NC, infected control-C and Infected treatment-T) of six animals in each group in a completely randomized block design for a period of 90 days. Twelve H. contortus infected adult sheep were allocated into two equal groups C and T, supplemented with 0 and 1.5 % of CT, respectively. Six non-infected sheep of similar age and body weight of NC group were included in this study to compare their immune response with H. contortus C and CT supplemented T groups. Intake of dry matter and organic matter (g day -1 and % live weight) was statistically similar (P \ 0.05) among the three groups. The anti-Haemonchus IgG and CMI response was higher in T group as compared to C group. The mean faecal egg counts was significantly (P \ 0.001) higher in C group as compared to T group. It may be concluded that dietary supplementation of CT (1.5 %) through LMM improved humoral and CMI immune response and decreased worm load in H. contortus infected sheep.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Effect of condensed tannins supplementation through leaf meal mixture on voluntary feed intake, immune response and worm burden in Haemonchus contortus infected sheep

et al. 2014

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“…The consumption of fagara leaves (Zanthoxylum zanthoxyloides), a native tree from Africa, believed to have antiparasitic activity, resulted in reduced egg excretion by the same nematode in sheep, when consumed regularly in small amounts (Hounzangbe-Adote et al, 2005). Similarly, lespedeza (Sericea lespedeza), a grazing perennial legume native of Eastern Asia showed promising anthelmintic activity when offered to goats either fresh (Min et al, 2004) or as hay (Shaik et al, 2004;Lange et al, 2006). Ethnoveterinary sources from south-east Asia report that cassava forage (Manihot esculenta) has been used by traditional healers with success for the control of internal parasitism (Sokerya and Preston, 2003).…”

Section: Studies On the Whole Plant: Strengths And Limitationsmentioning

confidence: 99%

Medicinal plants for helminth parasite control: facts and fiction

Athanasiadou

Githiori

Kyriazakis

2007

Animal

199

129

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The use of medicinal plants for the prevention and treatment of gastro-intestinal parasitism has its origin in ethnoveterinary medicine. Although until recently the majority of the evidence on the antiparasitic activity of medicinal plants was anecdotal and lacked scientific validity, there is currently an increasing number of controlled experimental studies that aim to verify and quantify such plant activity. There are indeed a large number of plants whose anthelmintic activity has been demonstrated under controlled experimentation, either through feeding the whole plant or administering plant extracts to parasitised hosts. However, contrary to traditional expectation, there are also a great number of plants with purported antiparasitic properties, which have not been reproduced under experimental conditions. In this paper, we discuss the source of such inconsistencies between ethnoveterinary wisdom and scientific experimentation. We focus on the strengths and weaknesses of the existing methodologies used in the controlled studies to determine the activity of antiparasitic plants. We discuss issues like the seasonal and environmental variability of the plant composition, and how this can affect their antiparasitic properties and highlight the importance of identifying the mechanisms of action of such plants and the target parasite species. In addition to their antiparasitic properties, medicinal plants may also have anti-nutritional properties, which can affect animal performance and behaviour. For this reason, we emphasise the need for considering additional dimensions when evaluating medicinal plants. We also question whether using similar criteria as those used for the evaluation of anthelmintics is the way forward. We propose that a holistic approach is required to evaluate the potential of medicinal plants in parasite control and maximise their benefits on parasitised hosts. Keywords: bioactive plants, ethnoveterinary medicine, medicinal plants, parasites, ruminants IntroductionFor centuries, medicinal plants have been used to combat parasitism, and in many parts of the world are still used for this purpose. In ethnoveterinary medicine, which draws inspiration from traditional practice, there seems to be a range of plant/s or plant extract suitable for treating almost every parasitic disease of livestock (International Institute of Rural Reconstruction (IIRR), 1994). For example, seeds of garlic, onion and mint have been used to treat animals that suffer from gastro-intestinal parasitism, whereas extracts of the tobacco plant have been used to treat the skin of livestock afflicted with external parasites (Guarrera, 1999). Leaves, dried flowers and oil from Chenopodium ambrosioides, a shrub that originated from Central America and has been distributed around the world, have all been used as anthelmintics since the early 1900s (Guarrera, 1999).Reports from around the world include exhaustive lists of plants that have been reported to have medicinal properties (Hammond et al., 1997;Akhtar et al., 2000;Waller ...

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“…The incubation of eggs and larvae with plant extracts rich in tannins has produced positive results with regard to egg eclosion, and the mobility and exsheathment of larvae (BARRAU et al, 2005;BRUNET et al, 2007;FARAJ, 2010;OLIVEIRA et al, 2011a). A decrease in the parasitic load and number of eggs eliminated has also been described in sheep and goats when using tanniniferous plants (LANGE et al, 2006;HECKENDORN et al, 2007;MINHO et al, 2010;PARRA et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

In vitro ovicidal and larvicidal activity of condensed tannins on gastrointestinal nematode infestations in sheep (Ovis aries)

et al. 2014

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Infestations of gastrointestinal parasitic nematodes in sheep result in significant costs to farmers. These infestations are controlled using synthetic anthelmintic treatments, which can result in the development of anthelmintic resistance in nematodes. The use of plants rich in condensed tannins (CTs) is a promising alternative for controlling infestations of harmful parasites in sheep, and could allow reduction of the chemical products used. This study investigated the in vitro effect of CTs from Acacia mearnsii extract (AE) on egg hatching and motility of third-stage larvae. Egg-hatching rate was measured after incubation with extracts for 48 h at 27 °C. The egg hatch test was performed with dilutions of 0. 09, 0.19, 0.39, 0.78, 1.56, 3.12, 6.25, 12.5, 25, 50, and 100 mg mL -1 . Distilled water was used as the negative control. The corresponding egg hatching inhibition percentages were 22.3, 32.3, 39.2, 49.1, 56.7, 59.0, 62.3, 77.3, 92.7, 98.3, and 100%. The concentration required to inhibit egg hatching in 50% of eggs (LC 50 ) was 2.85 mg mL -1 . The inhibition achieved with the negative control was 7.06%. A larval migration inhibition test was carried out after incubation with the extracts for 48 h at 27 o C, with AE and distilled water used in dilutions of 3.12, 6.25, 12.5, 25, 50, and 100 mg mL -1 . The corresponding percentages of migration inhibition were 16.5, 37.0, 56.3, 79.4, 91.8, and 97.1%. The concentration required to inhibit migration of 50% of larvae (LC 50 ) was 12.45 mg mL -1 . The inhibition achieved with the negative control was 8.53%. The in vitro ovicidal and larvicidal activity of CTs from AE indicate the anthelmintic effect of AE, suggesting the potential of CT extracts to be used as alternatives for controlling gastrointestinal nematode infestations in small ruminants. Key words: In vitro test, helminthes, tannins, phytotherapy, small ruminants ResumoO parasitismo gastrintestinal em ovinos acarreta inúmeros prejuízos aos produtores rurais. O controle é realizado basicamente através da administração de anti-helmínticos sintéticos o que estimula a seleção de parasitas resistentes. O uso de plantas ricas em taninos condensados (TC) apresenta-se como uma alternativa promissora no controle de helmintos em ovinos, reduzindo o uso de produtos químicos. Esse estudo avaliou o efeito in vitro dos TC provenientes da acácia (Acacia mearnsii) sobre a eclosão de ovos e a motilidade de larvas de terceiro estágio de nematódeos gastrintestinais de ovinos. A taxa de eclosão foi avaliada após incubação com o extrato por um período de 48 h a 27 o C. A eclodibilidade foi avaliada nas concentrações de 0,09; 0,19; 0,39; 0,78; 1,56; 3,12; 6,25; 12,5; 25; 50 e 100 mg mL -1 . No controle negativo utilizou-se água destilada. As inibições das eclosões foram 22,3; 32,3; 39,3; 49,1; 56,7; 59; 62,3; 77,3; 92,7; 98,3 . A ação ovicida e larvicida in vitro do tanino condensado do extrato de Acacia mearnsii encontrada no presente trabalho indica uma ação anti-helmíntica, apresentando potencial para sua apli...

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Effect of sericea lespedeza (Lespedeza cuneata) fed as hay, on natural and experimental Haemonchus contortus infections in lambs

Cited by 119 publications

References 24 publications

Effect of condensed tannins supplementation through leaf meal mixture on voluntary feed intake, immune response and worm burden in Haemonchus contortus infected sheep

Effect of condensed tannins supplementation through leaf meal mixture on voluntary feed intake, immune response and worm burden in Haemonchus contortus infected sheep

Medicinal plants for helminth parasite control: facts and fiction

In vitro ovicidal and larvicidal activity of condensed tannins on gastrointestinal nematode infestations in sheep (Ovis aries)

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