Feeding algae to cattle at low doses to produce high omega 3 levels in beef

An algal, horizontal technology, applied in the field of feeding algae to cattle at low doses to produce high omega 3 levels in beef, can solve problems such as not being sustainable in the long term

Inactive Publication Date: 2017-08-29
D M 史密斯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In conclusion, netting of baitfish for fishmeal in aquaculture is not sustainable in the long term

Method used

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  • Feeding algae to cattle at low doses to produce high omega 3 levels in beef
  • Feeding algae to cattle at low doses to produce high omega 3 levels in beef

Examples

Experimental program
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Embodiment

[0027] Three beef cattle were fed a standard ration consisting of corn, corn bran, hay and minerals. Control animals were fed standard diet only. In addition to the standard diet, the second animal received 80% water and a 20% slurry of Nannochloropsis algae (equivalent to 0.2 lb algae / day) administered directly into the gut via cannula of the rumen. A third animal was fed a standard diet and also received 0.2 lbs. of dried schizochytrium algae per day via cannula directly into the rumen. Animals were fed for 8 days (from December 24 to January 1). December 23 is the date before feeding begins. On January 1, using a cannula, samples of intestinal solids and fluids were collected and subsequently analyzed for combined DHA and EPA content (as percentage of omega-3 acids present). Omega-3 acids in rumen fluid are released from damaged algal cells. The omega-3 acids in rumen solids are acids from undamaged whole algal cells. The results of the analysis are shown below in tab...

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Abstract

Disclosed herein is a method for feeding low doses of algae to cattle to increase the level of omega 3 polyunsaturated fatty acids including docosahexaenoic acid (DHA) and eicosapentenoic acid (EPA) in commercial cattle feeding environments. The method of increasing the level of omega-3 fatty acids in cattle which comprises feeding the cattle between about 0.05 and 0.8 pounds per day of algae.

Description

Background technique [0001] Cardiologists encourage consumers to eat fish daily to have a high intake of omega 3 DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid). Omega-3 fatty acids, especially DHA and EPA, support cardiovascular, brain and eye health and provide additional health benefits. However, daily consumption of fish also provides consumers with adverse health consequences of mercury, other heavy metals, and PCBs. In addition, the world's fish supply is declining due to overfishing. An alternative to fish farming is intended as marine fish stocks dwindle, but there is growing pressure on the supply of baitfish. Fishermen must use fish meal obtained by netting large numbers of small fish (ie, bait fish) in the ocean. Baitfish contain omega-3 fatty acids in their adipose tissue, which are deposited when these smaller fish feed on zooplankton. Zooplankton feed on algae and absorb omega-3 fatty acids from algae because algae are the basis of the omega-3 food...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/10A23K10/30A23K10/16
CPCA61K31/202A23K10/16A23K10/30A23K50/10Y10S426/807A61K36/02
Inventor D·M·史密斯
Owner D M 史密斯
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