Explore
Communities in English
Advertise on Engormix

Linseed utilisation to supply Omega 3 in mono-gastrics

Published: January 6, 2016
What is your opinion on Extruded Linseed utilisation in mono-gastric nutrition to supply Omega 3? Do they have the enough ability to convert Linolenic acid into Eicosapentaenic acid and Docosapentaenic acid into the correct ratios to gain the lift seen by salmon and or marine oil utilisation? Could this be a more sustainable source than fish oil and more cost effective than algae?
Authors:
Anonymous
Anonymous
Join to be able to comment.
Once you join Engormix, you will be able to participate in all content and forums.
* Required information
Would you like to discuss another topic? Create a new post to engage with experts in the community.
Create a post
Anthony Charles Edwards
8 de enero de 2016
Linseed ( Flax) oil as a source of omega-3 fatty acids. Linseed oil is a good source of w-3 fatty acids in that it contains around 50% linolenic acid ( C18:3, n3) but this needs to undergo elongation and desaturation to convert to EPA and DHA so its efficacy as a precursor to these will depend the rate and efficiency of this process which may be quite low. There is a lot of current interest in w-6:w-3 ratios in pig diets. Rosero et al ( 2015, J An Repro Sci) compared a factorial of essential fatty acid additions ( 2.1, 2.7, 3.3% linoleic and 0.15,030,0.45% linolenic) over a base diet of 1.3% linoleic and 0.07% linolenic in lactating sows. These supplements had little effect on sow or piglet performance during lactaion but the higher levels had significant benefits in terms subsequent reproductive performance. They used linseed ( flax ) oil as their linolenic source and achieved the best result at the lowest w-6:w-3 ratio ( 5.0) Newman et al ( 2009, Manip.Pig Prod X11)compared three sources of fat in the gestation diets of first litter sows being tallow ( saturated), fishoil ( omega-3) and safflower oil ( omega -6) creating w-6:w-3 ratios of 12, 3, 28 respectively.The best results in terms of pigs born alive and lowest stillbirths/mummies was recorded on the lowest w-6:w-3 level ( fishoil) while the high w-6 diet ( safflower oil) significantly increased stillbirths and mummies and resulted in a reduction of 2.0 pigs born per litter. Wilkinson et al (2014, J AN Prod Sci) compared the same three fat alternatives in growing pigs from weaning to finish. They observed that the high w-6:w-3 diet ( safflower oil) resulted in severe feed intake depression with corresponding growth retardation. So there is growing evidence that this w-6:w-3 ratio is important and that there is a need to better understand the relative efficacy of w-3 sources other than fishoil as well as the minimum requirements for each of the essential fatty acids independent of the ratio. With fishoil availability declining there is a need to explore the use of linseed and canola oils as well as algal sources as practical w-3 options.
1
Join Engormix and be part of the largest agribusiness social network in the world.
LoginRegister