SUMMARY
  • Feeding Orego-Stim increased egg size throughout lay, compared to control fed hens.
  • Hens fed Orego-Stim produced 2.1 more Large eggs per hen over 35 weeks versus control fed hens.
  • Hens fed Orego-Stim throughout rearing and laying gave a ROI of 3:1.
BACKGROUND
  • With restriction on the use of antibiotics during the laying cycle, the production of a robust chick is crucial to ensure optimal health and performance during lay.
  • The priority for a vast majority of egg producers is enhancing productivity by increasing persistence in lay and maintaining maximal egg quality providing economic and environmental benefits (Bain et al., 2016).
  • Natural oregano essential oil has been shown to be beneficial in supporting gut health and subsequent poultry performance (Sugiharto, 2016).
  • Orego-Stim is a high quality, plant based eubiotic, containing 100% natural oregano essential oil.
TRIAL DESIGN

An independent trial is currently being conducted by North Carolina State University, USA using 1,872 Dekalb White chicks from day-old to 72 weeks of lay. The aim of the trial is to determine the effect of Anpario products on pullet rearing and laying hen performance. Birds were assigned randomly into one of three dietary treatments, detailed below (Figure 1).trial design schematicFigure 1. Trial design schematic. Pullets were assigned to one of four treatments: no additives during rearing or lay (Control); or Basal diet plus Orego-Stim (300g/t) continuously throughout rearing and laying (Orego-Stim). During weeks 37-42 of age, all hens were fed a barley and wheat based high protein diet with no enzymes included (orange shading).

Pullets were housed in conventional cages with 26 pullets per cage during rearing (0.031m2/pullet), and transferred to the laying facility with 12 hens per cage (0.083m2/hen), with 18 replicates per treatment throughout. Pullet weight and feed intake was measured once every 2 weeks during rearing. Feed consumption, egg production and egg characteristics were measured weekly.

RESULTS

mean hen housed production %Figure 2. Mean Hen Housed Production (%) for each four-week period. 21-56 weeks of age. Orange shading indicates high protein nutritional challenge fed to all hens 37-42 weeks of age.

Average cumulative egg numbers per surviving hen from 21 to 56 weeksFigure 3. Average cumulative egg numbers per surviving hen from 21 to 56 weeks. Orange shading indicates high protein nutritional challenge fed to all hens 37-42 weeks of age. At 41-44 weeks, Orego-Stim fed birds produced one extra egg (+1). At 45-48 weeks an additional extra egg was produced (+1), which was maintained to 56 weeks of age.

  • Hens fed Orego-Stim produced a greater daily egg mass (equivalent of 2.1 USDA 56.7g Large eggs) than hens from the control group (Fig. 2) over 35 weeks, giving a ROI of 3:1.
  • Greater hen day production (%) was seen in hens fed Orego-Stim (Fig. 2), showing improved persistency in lay whilst there were no significant differences in feed efficiency throughout lay.
  • Orego-Stim fed hens had a greater increase in HD% and egg mass following the high protein diet challenge (Fig. 2) and produced more eggs than control following the nutritional challenge (Fig. 3).
  • Orego-Stim is a natural solution in supporting laying hens to maximise their lifetime performance.