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Mussel shells as a combined occupational- and Ca source in floor kept laying hens

Tauson, R. and Alm, M. (2014) Mussel shells as a combined occupational- and Ca source in floor kept laying hens. .

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In order to improve the occupation rate in laying hens held in a single tier floor system, mussel shells (particle size 10-20 mm) were supplied in the litter on every day basis. However, this procedure did not result in any affect on birds’ feather cover, novel object reactions, nor other welfare parameters or production performance. In the present study, it was not possible to partly replace calcium supplementation in the diet with the access to crushed mussel shells. This reduced calcium supplementation in the feed resulted in significantly higher rates of keel bone deviations, lower shell breaking strength and lower dry matter content of feces and litter.

EPrint Type:Report
Keywords:ICOPP II, Mussel shells, Laying hens, Welfare, Feather cover, Calcium, Production
Subjects: Animal husbandry > Health and welfare
Research affiliation: European Union > CORE Organic II > ICOPP
Sweden > Swedish University of Agricultural Sciences (SLU) > Department of Animal Nutrition and Management
Deposited By: Alm, Malin
ID Code:27943
Deposited On:18 Dec 2014 14:37
Last Modified:03 Jun 2015 10:07
Document Language:English
Refereed:Not peer-reviewed
Additional Publishing Information:D 3.7 Deliverable

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