Related Experiment Video
Updated: Jun 26, 2026

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth
Published on: September 20, 2021
Effects of a semiochemical on feed conversion index and related indicators on fast-growing broilers housed during
I Madec1, J-F Gabarrou, D Moulin
1Pherosynthese, Le Rieu Neuf, 84490 Saint Saturnin Apt, France. imadec@pherosynthese.com
Abstract:
Consequences of stress in poultry may be assessed through a wide range of parameters. A semiochemical named mother hen uropygial secretion analogue (MHUSA) is known to decrease stress in broilers. Because stress influences their feeding behavior, this trial has been built so as to test the influence of MHUSA on feed conversion index and related indicators. Two hundred forty chicks were placed into 24 similar crates (10 chicks per crate) at 1 d of age. After 35 d, chickens under MHUSA presented similar feed conversion index compared with control. A treatment effect was observed on both heterophil:lymphocyte ratio and corticosterone (MHUSA

