Effects of Dietary Supplementation With Saccharomyces cerevisiae Yeast Extract on Production Performance in Aged Commercial Laying Hens.

Authors

Ahmad Hassanabadi, Hassan Aalipour, Heydar Zarghi, Mohammadreza Salehan, Ramyar Gharedaghi

Published in

Veterinary medicine and science. Volume 11. Issue 5. Pages e70517.

Abstract

Broken-shell eggs in aged laying hens cause great losses to the egg industry. Saccharomyces cerevisiae yeast may improve shell quality by modulating intestinal health and oviduct function.
This study was carried out to determine the effects of supplementing Saccharomyces cerevisiae yeast extract (SYE) to the diets of aged commercial laying hens.
A total of 192 Shaver White laying hens aged 105-116 weeks were allocated to four dietary levels of SYE (0, 1.0, 2.0, 3.0 g/kg diet), with 6 replicates of 8 birds each. The experiment was performed in a randomized complete block design.
The use of different levels of SYE caused a significant linear and quadratic increase in the percentage of laying and daily egg mass production (p < 0.05). Feed intake (FI) in the 3 g/kg treatment was significantly higher than the control treatment in 113-116-week period (p < 0.05). The percentage of eggshell and shell thickness at 105-116 weeks of age (total period) in the 3 g/kg treatment was significantly higher than the control treatment (p < 0.05). Orthogonal comparison of the supplemented SYE against the control treatment also showed that the use of SYE in the diet significantly increased (p < 0.05) the percentage of shell (12.2% vs. 11.4%) and eggshell thickness (0.384 vs. 0.362 mm) compared to the control treatment.
The use of different levels of SYE did not have a significant effect on production performance indicators in old laying hens of the Shaver White strain. It significantly increased the thickness and relative weight of eggshell. Supplementing SYE 3 g/kg diet significantly increased the average eggshell percentage and shell thickness.

PMID:
40758249
Bibliographic data and abstract were imported from PubMed on 04 Aug 2025.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.