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Pumpkin seeds, lemongrass essential oil and ripleaf leaves as feed additives for Ascaridia galli infected laying hens

Rodenbücher, Anna L; Walkenhorst, Michael; Holinger, Mirjam; Perler, Erika; Amsler-Kepalaite, Zivile; Frey, Caroline F; Mevissen, Meike and Maurer, Veronika (2022) Pumpkin seeds, lemongrass essential oil and ripleaf leaves as feed additives for Ascaridia galli infected laying hens. Veterinary research communications, pp. 1-16.

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The present study was performed to evaluate the in vivo efficiency of Curcurbita pepo (pumpkin) seeds, Cymbopogon citratus (lemongrass) essential oil and Plantago lanceolata (ripleaf) leaves against helminth infections in laying hens. In the first experiment, 75 Lohmann LSL Classic hens naturally infected with Ascaridia galli were assigned to groups of five; groups were randomly assigned to one of three treatments with five replicates each (untreated control; lemongrass oil: 1 g/bird/day; pumpkin seeds: 10 g/bird/day). Feed consumption and egg production were continuously recorded, individual faecal egg counts were determined weekly, and E. coli and Lactobacillus spp. three times during the experimental period of 29 days. After slaughter, intestinal worms were counted and sexed. Pumpkin improved feed conversion as compared to the control (p = 0.008) and to lemongrass (p = 0.021); no treatment effect on any other parameter was found.
In the second experiment, 75 LSL pullets were artificially infected with 3 × 200 A. galli eggs, randomly divided into groups of five and assigned to one of three treatments (untreated control, lemongrass oil: 1 g/bird/day; ripleaf: 5% of ration). After 109 days of sampling as described above, hens were slaughtered and worm burdens determined. Performance of the animals did not change regardless of the treatment and none of the treatments resulted in changes of the microbiological and parasitological parameters. In conclusion, with the exception of improved feed conversion in the pumpkin group, no positive nor negative effects of the additives on performance, parasitological and microbiological parameters of naturally and artificially A. galli infected laying hens were observed.

EPrint Type:Journal paper
Keywords:Curcurbita pepo, helminths, medicinal plants, Cymbopogon citratus, Migors Wurmhuhn, Abacus, FiBL50017
Agrovoc keywords:
medicinal plants
Cymbopogon citratus
Plantago lanceolata
Subjects:"Organics" in general
Animal husbandry > Health and welfare
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Animal > Animal health > Parasitology
Switzerland > Other organizations Switzerland
Deposited By: Forschungsinstitut für biologischen Landbau, FiBL
ID Code:44962
Deposited On:22 Dec 2022 19:09
Last Modified:27 Feb 2023 11:37
Document Language:English
Refereed:Peer-reviewed and accepted

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