- Orego-Stim helped to support broiler growth and FCR in an Eimeria challenge model.
- Broilers fed Orego-Stim had lower lesion scores and fewer oocysts/g following Eimeria
- Orego-Stim is a natural solution to support broilers challenged by Eimeria.
- Eimeria as ubiquitous in the environment and there is no cross protection between Eimeria species.
- Traditionally coccidiosis control has been via the use of chemicals, ionophores and vaccines.
- The global cost of coccidiosis, including drug related treatment, is estimated to be $10.4 billion annually (Blake et al., 2020).
- Orego-Stim is a high quality, plant based eubiotic, containing 100% natural oregano essential oil.
An independent trial was conducted by Tsinas and colleagues (2011), in Greece. A total of 375 day-old Cobb-500 chicks were randomly assigned in equal numbers to one of 5 groups, with 3 replicates per group. Broilers were reared from 0-35 days of age. Body weights were measured weekly.
|NC||No treatment, unchallenged (Negative Control)|
|PC||No treatment, challenged (Positive Control)||
|OS 300||Orego-Stim (300g/t) in feed||
|OS 600||Orego-Stim (600g/t) in feed||
|Sal.||Salinomycin (500g/t) in feed||
1On day 14 of age, each broiler in the challenged groups was inoculated orally with a 2ml dose of 1×105 sporulated oocysts of E. acervulina and E. maxima directly into the crop.
|Figure 1. Average daily gain (g) and average feed conversion ratio (FCR) of broilers from 0-35 days of age. Differing letters within series indicate significant difference (p<0.05). (Adapted from Tsinas et al., 2011).||Figure 2. Average mortality of broilers from 0-35 days of age. (Adapted from Tsinas et al., 2011).|
Broilers supplemented with Orego-Stim at 300g/t or 600g/t had:
- An average daily gain which was numerically better than the unchallenged control group and was not significantly different from the birds treated with Salinomycin.
- An improved FCR compared to both the control and positive control broilers and a numerically better FCR than broilers treated with Salinomycin.
- Reduced lesion scores compared to PC broilers and lesion scores that were not significantly different from broilers treated with Salinomycin.
- Significantly lower oocysts/g faeces between 20-28 days of age, compared to PC broilers (p<0.05), following an Eimeria challenge at 14 days of age. This helps to supports development of natural immunity whilst minimising performance losses.
The results of the trial indicate that Orego-Stim supplementation can support broiler health and performance during Eimeria challenge in the absence of antibiotics.