The influence of cow feed enriched with carrots on milk quality and nutritional value

Antone, U., Latvia Univ. of Agriculture, Jelgava ;Latvia Univ. of Agriculture, Sigulda . Research Inst. of Biotechnology and Veterinary Medicine Sigra; Sterna, V., Latvia Univ. of Agriculture, Sigulda . Research Inst. of Biotechnology and Veterinary Medicine Sigra; Zagorska, J., Latvia Univ. of Agriculture, Jelgava

The influence of cow feed enriched with carrots on milk quality and nutritional value

2011

Antone, U., Latvia Univ. of Agriculture, Jelgava (Latvia);Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Sterna, V., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Zagorska, J., Latvia Univ. of Agriculture, Jelgava (Latvia)

β-Carotene (BC) and a-tocopherol in milk fat have positive implications in human nutrition, besides the specifically protecting polyunsaturated fatty acids from oxidation. To determine the possible effect on some milk components, nutritional value and lipid stability of including carrots in the diet of lactating cows, ten cows were selected in a dairy farm and divided into 2 groups (control and experimental) by 5 cows in each. In experimental group's diet additionally 7 kg carrots per cow per day were included. Individual cow milk samples were obtained 1 day before feed enrichment, in days 7, 24, 35, 42 (during the feed enrichment), and 1 week after feed enrichment. Analyses of milk fat, protein content, somatic cell count (SCC), retinol, BC, vitamin C, tocopherols, immunoglobulins (Ig), lysozyme, fatty acids (FA) were made, and milk yield was measured. Supplying cow diet with carrots showed a tendency to improve milk quality by promoting the faster decrease of SCC, and significantly (p is less than 0.05) increasing Ig and lysozyme content, thus potentially improving milk nutritional value. The vitamin content rose significantly (p is less than 0.05) by retinol and tocopherol contents, but b-carotene content increase in milk was not observed. Also milk fatty acid (FA) stability changes during 5 day storage in temperature of 4 - 6 deg C were not observed.

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Mots clés AGROVOC

aliment pour animaux alimentation des animaux animal feeding antioxidantes antioxidants antioxydant calidad carotenoide carotenoides carotenoids carotte carrots cow milk feed supplements feeds forage forrajes fourrage lait de vache latvia leche de vaca letonia lettonie piensos quality recherche research suplementos de piensos zanahoria

Informations bibliographiques

Publié dans

Research for Rural Development. International Scientific Conference Proceedings (Latvia)

Numéro 17/2011 ISSN 1691-4031

Editeur

Latvia University of Agriculture

Pagination

p. 80-86

D'autres materias

Qualite; Investigacion; Alimentacion de los animales; Complement alimentaire pour animaux

Langue

anglais

Note

Summary (En)

2 tables, 8 fig., 26 ref.

Type

Conference; Summary

Source

Research for Rural Development 2011. Annual 17th International Scientific Conference Proceedings. Volume No 1, Gaile, Z..- Jelgava (Latvia): Latvia University of Agriculture, 2011. International Scientific Conference: Research for Rural Development, 17, Jelgava (Latvia), 18-20 May 2011.- p. 80-86

Conférence

International Scientific Conference: Research for Rural Development, 17, Jelgava (Latvia), 18-20 May 2011

Sur AGRIS depuis: 2011-01-15

Format: AGRIS AP

Fournisseur de données

Cette notice bibliographique a été fournie par Fundamental Library of Latvia University of Life Sciences and Technologies

Découvrez la collection de ce fournisseur de données dans AGRIS

Liens

http://www.llu.lv/getfile.php?id=44020

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