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BioStreamer™ Re-Store:  Impressive field results of hatch and post-hatch performance

The BioStreamer™ Re-Store warms up eggs for short periods during storage to minimize the losses in hatchability and chick quality caused by long storage times. Recently, several trials with the BioStreamer™ Re-Store were performed in a commercial broiler hatchery. The hatch and post-hatch performance was investigated and the results are extremely positive, what confirms the potential of this heat treatment technology.

By Roger Banwell, Hatchery Development Manager

Hatch performance

Firstly, the hatch performance was investigated by means of the hatchability. Before incubation, eggs were stored for 7 days and on day 5 of storage, half was subjected to a heat treatment with the BioStreamer Re-Store. After incubation, the difference in hatchability between the eggs with and without Re-Store treatment was analysed. Figure 1 shows the results for different trials, which represent different flocks and flock ages. The hatchability was between 0.96 and 1.30% higher for the eggs with the Re-Store treatment, with an average of 1.14%.

Figure 1: Difference in hatch results between 7 days stored eggs with and without Re-Store treatment.

The same experiment was performed with eggs that were stored for 14 days before incubation. Half of the eggs were subjected to a heat treatment on day 5 and day 10 with the BioStreamer Re-Store. Figure 2 shows that the hatchability was between 3.09 and 6.66% higher for the eggs with the Re-Store treatment, with an average of 4.34%.

Figure 2: Difference in hatch results between 14 days stored eggs with and without Re-Store treatment.

Post-hatch performance

Secondly, the post-hatch performance was investigated by means of weight and mortality of the broilers at day 42 on the broiler farm. In the hatchery, the eggs were stored for 7 days and on day 5 of storage, half was subjected to a Re-Store treatment. After incubation and grow out, the difference in weight and mortality between the group with and without Re-Store treatment was analysed. Figure 3 shows that the weight of the broilers was between 0.49 and 1.04% higher if the eggs were subjected to a Re-Store treatment during storage in the hatchery. The mortality declined between 0.32 and 0.38% due to the Re-Store treatment during storage.

Figure 3: Difference in post-hatch results between 7 days stored eggs with and without Re-Store treatment.

The previous experiment was also performed with eggs that were stored during 14 days in the hatchery. Half of the eggs were subjected to a Re-Store treatment on day 5 and day 10. Figure 4 shows that the weight of the broilers was between 0.89 and 1.51% higher if the eggs were subjected to a Re-Store treatment. The mortality declined between 0.28 and 0.54% due to the Re-Store treatment during storage.

Figure 4: Difference in post-hatch results between 14 days stored eggs with and without Re-Store treatment.

Conclusion

Field experiments in a commercial hatchery proved that a heat treatment with the BioStreamer Re-Store during egg storage, improves the hatch and post-hatch performance. Due to this technology,the hatchery and broiler farm results can be improved, what leads to a mutual maximized profit for life.