Anthelmintic effects of forage chicory (Cichorium intybus) against gastrointestinal nematode parasites in experimentally infected cattle

Abstract

Two experiments studied the effects of dietary chicory against gastrointestinal nematodes in cattle. In Experiment (Exp.) 1, stabled calves were fed chicory silage (CHI 1 ; n = 9) or ryegrass/clover hay (CTL 1 ; n = 6) with balanced protein/energy intakes between groups. After 16 days, all calves received 10 000 Ostertagia ostertagi and 66 000 Cooperia oncophora thirdstage larvae (L3) [day (D) 0 post-infection (p.i.)]. In Exp. 2, calves were assigned to pure chicory (CHI 2 ; n=10) or ryegrass/ clover (CTL 2 ; n = 10) pastures. After 7 days, animals received 20 000 O. ostertagi L3/calf (D0 p.i.) and were moved regularly preventing pasture-borne infections. Due to poor regrowth of the chicory pasture, CHI 2 was supplemented with chicory silage. At D40 p.i. (Exp. 1) and D35 p.i. (Exp. 2) calves were slaughtered for worm recovery. In Exp.1, fecal egg counts (FEC) were similar between groups. However, O. ostertagi counts were significantly reduced in CHI 1 by 60% (geometric mean; P < 0·01), whereas C. oncophora burdens were unaffected (P = 0·12). In Exp. 2, FEC were markedly lowered in CHI 2 from D22 p.i onwards (P < 0·01). Ostertagia ostertagi adult burdens were significantly reduced in CHI 2 by 66% (P < 0·001). Sesquiterpene lactones were identified only in chicory (fresh/silage). Chicory shows promise as an anti-Ostertagia feed for cattle and further studies should investigate its on-farm use.

Efficacy of ivermectin against gastrointestinal nematodes of cattle in Denmark evaluated by different methods for analysis of faecal egg count reduction

“…Therefore, and considering the relevance of IVM and other anthelmintics for nematode control in Danish cattle, the true extent of AR in bovine nematodes in Denmark needs to be assessed in larger surveys. Until then, producers and veterinarians should be aware of potentially ineffective treatments against GIN in cattle, while reducing the reliance on anthelmintics by including other parasite control strategies with documented efficacy, such as grazing management and feeding with bioactive forages (Nansen et al., 1987, Peña-Espinoza et al., 2016). …”

The Variation for Dry Weight and Hay Quality in Turkish Origin Wild Chicory (Cichorium intybus L.) Genotypes

“…In all the genotypes, crude protein content was the highest in first cutting while it was lowest in the third cutting. Espinoza et al (2016) reported that after first cutting, the chicory exhibited the very limited regrowth and, therefore the lower protein content. Previously, it was reported that crude protein content of chicory ranged between 16.20 and 20.07% (Piluzza et al, 2014;Espinoza et al, 2016).…”

Effect of Ensiling on Efficacy of Sericea Lespedeza against Gastrointestinal Nematodes and Coccidia in Goats

“…For goats on farms in other countries, FEC were lower for ensiled cassava (which contains tannins) compared to sun dried [13], lower for silage, hay and fresh cassava compared to control diets [14] and lower for cassava silage compared to grass and grass/soybean meal supplemented goats [15]. More recently, in cattle, chicory silage reduced worm burdens and/or FEC in two studies [16]. These studies, combined with results of the present study, indicates that ensiling does not significantly alter the ability of tannin-containing plants to negatively influence FEC.…”