Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο: https://hdl.handle.net/20.500.14279/10577
Τίτλος: Stage of lactation affects the fatty acid profile of Chios sheep milk
Συγγραφείς: Tzamaloukas, Ouranios 
Orford, Michael R. 
Miltiadou, Despoina 
Papachristoforou, Christakis 
Major Field of Science: Agricultural Sciences
Field Category: Animal and Dairy Science
Λέξεις-κλειδιά: Fatty acid;Milk;Chios sheep breed
Ημερομηνία Έκδοσης: 25-Αυγ-2014
Πηγή: 65th annual conference of the European Association for Animal Production EAAP 2014, Copenhagen, Denmark, 25 - 28 August
Περίληψη: The present study examined possible variation in fatty acid (FA) composition of milk, in association with stage of lactation in the Chios sheep breed. Fifteen second parity Chios ewes were used from the start until week 20 of lactation. Animals were housed indoors and group fed the same diet to meet 1.1 X maintenance energy (0.401 MJ/kg weight0.73) and milk production requirements. From each ewe, milk samples collected during the morning milking (weeks 1, 4, 8, 12, 16 and 20 of lactation), were analysed for fat, protein, lactose and solids non-fat using established ISO methods, and for FA content, by applying a modified GC-MS method. The effect of the stage of lactation on milk constituents was tested using a general linear model for repeated measurements. Results showed that stage of lactation significantly affected the FA composition of milk (p<0.001). De novo synthesized FA, particularly C4:0 to C12:0, were significantly affected showing a similar trend, with an increase during early lactation (peak at week 4) and a decrease thereafter. Stage of lactation also affected most of the saturated and unsaturated long chain FA (≥16 carbons). Expressed in g/100g of fat, the content of long saturated FA (sum of C16 to C24) was low during early lactation (36.1 and 31.8 in weeks 1 and 4, respectively) and increased thereafter (41.9 and 42.8 in weeks 16 and 20, respectively). Poly-unsaturated FA (PUFA) content was higher in early lactation (4.6 and 5.1 in weeks 1 and 4, respectively), and decreased over time (3.4 and 2.9 in weeks 16 and 20, respectively). Conjugated linoleic acid (CLA) showed a similar trend to other PUFA with high content at the start of lactation (0.61, 0.77 in weeks 1 and 4 respectively) and decreasing thereafter (0.41, 0.24 in weeks 16 and 20, respectively). Depending on FA type, stage of lactation differentially affected the milk FA content of Chios ewes on a standard diet.
URI: https://hdl.handle.net/20.500.14279/10577
Type: Conference Papers
Affiliation: Cyprus University of Technology 
Publication Type: Peer Reviewed
Εμφανίζεται στις συλλογές:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

Αρχεία σε αυτό το τεκμήριο:
Αρχείο Περιγραφή ΜέγεθοςΜορφότυπος
Stage of lactation affects.pdfAbstract98.17 kBAdobe PDFΔείτε/ Ανοίξτε
CORE Recommender
Δείξε την πλήρη περιγραφή του τεκμηρίου

Page view(s) 50

388
Last Week
0
Last month
2
checked on 22 Δεκ 2024

Download(s)

64
checked on 22 Δεκ 2024

Google ScholarTM

Check


Όλα τα τεκμήρια του δικτυακού τόπου προστατεύονται από πνευματικά δικαιώματα