Document Type

Report

Report Number

A.S. Series 79-26

Publication Date

1979

Summary

The aim of the present study is to determine whether certain metabolites of vitamin D3 (1,25-dihydroxycholecalciferol or 24,25-dihydroxycholecalciferol) added to the diet will affect shell quality in aged laying hens. This will be further evaluated by measurements of the carbonic anhydrase activity of the shell gland, blood serum calcium levels and calcium binding protein activity of the duodenum and shell gland.

Number of Pages

1

Type

text

Format

application/pdf

Language

en

Publisher

Department of Animal Science, Agricultural Experiment Station, South Dakota State University

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