Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/22661
Title: Short-term forage substitution with ensiled olive cake increases beneficial milk fatty acids in lactating cows
Authors: Neofytou, Marina C. 
Miltiadou, Despoina 
Symeou, Simoni 
Sparaggis, Dionysis 
Tzamaloukas, Ouranios 
Major Field of Science: Agricultural Sciences
Field Category: Animal and Dairy Science
Keywords: Ensiled olive cake;Milk fatty acid;Milk yield;Cow
Issue Date: Jun-2021
Source: Tropical Animal Health and Production, 2021, vol. 53, no. 2, articl. no. 257
Volume: 53
Issue: 2
Journal: Tropical Animal Health and Production 
Abstract: This study aimed to evaluate the effect of short-term forage substitution with ensiled olive cake (OC), on yield, composition and fatty acid (FA) profile of cows’ milk. Mid-lactating Holstein-Friesian cows were randomly assigned for 21 days to two isoenergetic and isoproteic feeding treatments (12 animals per treatment), containing 0 and 10% DM of ensiled OC (C and OC groups, respectively). Milk yield was recorded daily, and milk samples were collected at 14 and 21 days of the trial for analyzing the fat, protein, and FA profile of milk. No significant differences were observed in milk yield, protein, and fat nor in protein and fat percentage of milk between groups. However, dietary supplementation with ensiled OC modified the FA profile of cow milk. Feeding cows with ensiled OC resulted in a significant decline of medium-chain FA, while long-chain and mono-unsaturated FA were risen in milk (P < 0.05). Among individual saturated FA, palmitic was particularly reduced, while among individual mono-unsaturated FA, increments of C18:1 cis-9 were demonstrated with the OC treatment (P < 0.05). Although total poly-unsaturated FA were decreased, the concentration of CLA cis-9, trans-11 tended to be elevated with OC feeding (P = 0.06). Overall, short-term forage substitution with ensiled OC improved, beneficially for human health, the lipid profile of milk without adversely affecting milk yield or milk composition of lactating cows.
URI: https://ktisis.cut.ac.cy/handle/10488/22661
ISSN: 1573-7438
DOI: 10.1007/s11250-021-02706-2
Rights: © The Author(s)
Attribution-NonCommercial-NoDerivatives 4.0 International
Type: Article
Affiliation : Cyprus University of Technology 
Agricultural Research Institute 
Appears in Collections:Άρθρα/Articles

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