MILK COWS
Content of the concentrate (%)*
|
Mixture ingredients: |
Control group |
Experimental Group I |
Experimental group II |
|
Rapeseed pulp |
10,0 |
5,0 |
0,0 |
|
Post-extraction rapeseed cake |
15,0 |
5,0 |
0,0 |
|
Wheat bran |
20,0 |
25,0 |
20,0 |
|
Rye |
10,0 |
10,0 |
10,0 |
|
Barley |
39,5 |
39,5 |
39,5 |
|
Premix |
5,5 |
5,5 |
5,5 |
|
DDGS |
- |
15,0 |
25,0 |
Milk cows were additionally fed with a mixture, in a quantity dependent on individual output.
Analysis pertaining the long-chain fatty acids in the milk samples from the cows that were eating food with DDGS additive show, that beneficial changes took place, when it comes to composition of the fatty acids. It has also been noted that the concentration of multi-unsaturated fatty acids has been increased. This increase is an effect caused by the DDGS additive, constituting a rich source of the linoleic acid.
DDGS is a valuable protein feed, especially in the process of feeding the milk cows, its contribution to the mixtures and concentrates may vary from 15 to 25%.
By introducing DDGS into the diet, we may decrease contribution of other protein feeds, and lower the cost of breeding.
* Basic dosage for the experimental group has been established in line with the feeding norm for a 600 kilograms milk cow, capable of delivering 25 kilograms of milk with 4% of fat content (IZ-INRA, 1993). Feeding the cows with DDGS mixtures was applied within the period between the third week before calving, until the 9th week of lactation. The dose consisted of the feed and full meal dose (TMR), fed according to will.
