Grape marc proves worth in SA

18 Mar, 2016 04:00 AM
Comments
0
 
Blyth, SA, dairyfarmers Gary and Ros Zweck are successfully using crimped grape marc in their rations.
Crimped marc is basically a silage material with 50 per cent moisture...
Blyth, SA, dairyfarmers Gary and Ros Zweck are successfully using crimped grape marc in their rations.

GARY, Ros and Justin Zweck, Blyth, South Australia, heard about grape marc as a feed supplement and were interested in its potential for their dairy herd’s feeding strategy.

Grape marc is a by-product of winemaking with a high concentration of fat and tannins.

Crimped marc is steam-distilled grape marc that has been screened to remove stalks then rolled to crush the seeds, improving digestibility and energy availability.

Crimped marc is basically a silage material with 50 per cent moisture and with modest but consistent values of 12-13pc protein, 8-9pc fat and a metabolisable energy score of 11.

In early 2015 the Zwecks took part in a trial of crimped marc held byTarac Technologies, with results showing an increase in average milk production and no discernible difference in fat and protein.

Gary continues to incorporate crimped marc into his feeding strategy because it is a good replacement for cereal hay or silage and, at $200 a tonne DM for cereals and $95/t DM landed for the crimped marc, there is a significant cost saving to the ration.

The difference in moisture content between the crimped marc and cereal silage it is replacing means the crimped marc provides more dry matter with less water.

Some other high-fat supplements have been found to suppress feed intake and milk production so this feature of crimped marc is a positive for its inclusion in the ration.

Production volumes when feeding crimped marc are good, but Gary has found they need to work hard to manage the fat content of the milk, and with their payment structure this is important.

The Zwecks work with their nutritionist to make sure the ration keeps the milk’s fat content as high as possible.

Another note of caution is that the crimped marc can heat up in storage and mould can be an issue if stored for long periods of time.

Gary buys a load a fortnight so it doesn’t need to be stored for long.

Details:The 2016 Dairy SA conference – People, Production,Technology: Getting the Right Mix – will be held at McLaren Vale on March 23. Visit dairysa.com.au/news-events.aspx for more information.

StockJournal

POST A COMMENT


Screen name *
Email address *
Remember me?
Comment *
 
The hotter the stack, the more the farmer has stuffed the nutritive value of that stack.22 Sep 17 The hotter the stack, the more the farmer has stuffed the nutritive value of that stack.
If some silage making rules are bent or broken, it can affect the environment.21 Sep 17 If some silage making rules are bent or broken, it can affect the environment.
light grey arrow
At what event was this said ?
light grey arrow
One of the most effective ways to combat the fake markets is to mass serialise the original
light grey arrow
ok then, lets extend it further, anything that is not raw dairy cow/sheep/goat/buffalo milk, is
Dairyfarmers are reminded that chemicals used on farms, including those used to clean and sanitise the plant and milk vats, must be registered with the Australian Pesticides and Veterinary Medicines Authority (APVMA).
20 Sep 17 Dairyfarmers are reminded that chemicals used on farms, including those used to clean and sanitise the plant and...
When Victorian dairyfarmer Lauren Finger's father said he had an idea, little did she know how much of an impact his invention would improve her on-farm productivity and safety.
05 Sep 17 When Victorian dairyfarmer Lauren Finger's father said he had an idea, little did she know how much of an impact his...
Australian farm chemical manufacturer Nufarm has repaired its balance sheet and is now hunting for acquisition opportunities.25 Sep 16 Australian farm chemical manufacturer Nufarm has repaired its balance sheet and is now hunting for acquisition...
Monopoly market may confront cropping sector under mega-merger proposal.22 Sep 16 Monopoly market may confront cropping sector under mega-merger proposal.