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

被引:3
作者
Rodenbuecher, Anna L. [1 ]
Walkenhorst, Michael [1 ]
Holinger, Mirjam [1 ]
Perler, Erika [1 ]
Amsler-Kepalaite, Zivile [1 ]
Frey, Caroline F. [2 ]
Mevissen, Meike [3 ]
Maurer, Veronika [1 ]
机构
[1] Res Inst Organ Agr FiBL, CH-5070 Frick, Switzerland
[2] Univ Bern, Vetsuisse Fac, Inst Parasitol, Dept Infect Dis & Pathobiol, CH-3012 Bern, Switzerland
[3] Univ Bern, Vetsuisse Fac, Dept Clin Res & Vet Publ Hlth, Div Vet Pharmacol & Toxicol, CH-3012 Bern, Switzerland
关键词
Helminths; Medicinal plant; Cymbopogon citratus; Curcurbita pepo; Plantago lanceolate; ANTHELMINTIC ACTIVITY; EGG-PRODUCTION; PERFORMANCE; CHICKENS; BEHAVIOR; WELFARE; THYME; DIETS;
D O I
10.1007/s11259-022-10042-5
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
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 x 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.
引用
收藏
页码:817 / 832
页数:16
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