Dietary Bile Acid Effects on Eggshell Quality in Late-Laying Hens

72 laying hens were studied across three groups to assess the impact of bile acid supplementation on eggshell quality. Transcriptomic analysis of shell gland tissue revealed distinct gene expression profiles associated with laying stage and supplementation. Key biomineralization genes CALB1, CA2, and OC-116 were downregulated during late lay but significantly restored by bile acid supplementation.

Use Cases

• Analyzing the correlation between gene expression levels and eggshell ultrastructure metrics like mammillary density.
• Comparing production performance metrics like laying rate and feed efficiency across different hen age groups.
• Investigating the relationship between calcium concentration in shell gland fluid and effective eggshell thickness.

Strengths

• Data includes results from 72 laying hens across three distinct experimental groups.
• Findings are supported by transcriptomic analysis and qRT-PCR confirmation of key gene expression.
• Dataset is focused on a specific nutritional intervention with detailed physiological and molecular measurements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is small at 10.7 KB, indicating limited scope.

Provenance

Source

figshare

Collection Method

Experimental study with 72 laying hens assigned to control and treatment groups.

Freshness

Last updated 2026-05-04 05:34:04; freshness should be verified.