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Variability of reduced glutathione levels in Massese ewes and its effect on daily milk production

Published online by Cambridge University Press:  01 June 2009

Rita Rizzi ,
Anna Caroli ,
Patrizia Bolla ,
Anna Acciaioli  and
Giulio Pagnacco
Rita Rizzi
Affiliation:
Istituto di Zootecnica, Facoltà di Medicina Veterinaria, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy
Anna Caroli
Affiliation:
Istituto di Zootecnica, Facoltà di Medicina Veterinaria, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy
Patrizia Bolla
Affiliation:
Istituto di Zootecnica, Facoltà di Medicina Veterinaria, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy
Anna Acciaioli
Affiliation:
Istituto di Zootecnica, Facoltà di Agraria, Università degli Studi di Firenze, Via dette Cascine 5, 50144 Florence, Italy
Giulio Pagnacco
Affiliation:
Istituto di Zootecnica, Facoltà di Medicina Veterinaria, Università degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy
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Summary

The variability of the erythrocyte concentration of the tripeptide glutathione was studied in four flocks of Massese sheep. A relationship was found between glutathione level and stage of lactation in which the second month showed the lowest content. Genotype at transferrin and haemoglobin loci was associated with glutathione levels. Homozygotes at the transferrin locus yielded higher levels, while the D allele at the same locus was associated with lower concentrations. Animals with haemoglobin AA showed higher contents of glutathione. Also, a negative correlation was found between daily milk production and glutathione level.

Type
Original articles
Information
Journal of Dairy Research , Volume 55 , Issue 3 , August 1988 , pp. 345 - 353
Copyright
Copyright © Proprietors of Journal of Dairy Research 1988

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