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  • Poultry

Sehren, management of red mite populations (Dermanyssus gallinae)


Red mite (Dermanyssus gallinae) represent a major challenge in terms of animal health and economic performance. This mite, which prefers the dark of night to feed on the blood of poultry, is not only a source of stress and disease for poultry, but also a significant cause of economic losses for farmers.

SERHEN is a product that helps to manage the red mite population thanks to its repellent action.

Mode of action:

The complete programme combines SERHEN 1 & 2 additive solutions and a red mite population management protocol, with the aim of :

  • reduce the red mite population
  • reduce stress for animals and farmers by reducing red mite pressure,
  • modulate inflammatory reactions,
  • maintain the performance of laying hens.

This approach is differentiated according to the pressure of the red mite population.

Proven performance:

Using SERHEN helps optimise performance*:

  1. Technical: 
    • A hen without red mite lays an average of 332 eggs a year, whereas a hen in contact with red mite will lay an average of 324 eggs a year (for an average pressure): a loss of 2.41%.
  2. Economic:
    • ROI 1:5 with implementation of the SERHEN concept (Reference: Europe) *

Scientific references:

*Proven results in several rearing and in vitro trials conducted by Techna and its partners in 2016, 2023 and 2024.

Exists in BIO version


  • Powder

Incorporated into feed. Rate to be adjusted according to product concentration, species and physiological stage

Feedia embodies Techna's range of advice and solutions in breeding techniques and precision nutrition, serving the performance of production organisations, feed manufacturers and their breeder customers.