Additive for increasing content of unsaturated fatty acid in milk and preparation method of additive

Abstract

The invention discloses an additive for increasing the content of unsaturated fatty acid in milk. The additive consists of a mixed calcium soap of low erucic acid rapeseed oil, soybean oil and linseedoil. The unsaturated fatty acids of the additive separately comprise 19-22.2% of oleic acid, 33.6-37.3% of linoleic acid and 14-23.1% of linolenic acid. The preparation method of the additive comprises the following steps: uniformly mixing various oils and fats, preparing oil into sodium aliphatate with a sodium hydroxide solution, preparing a saturated calcium chloride solution, and preparing the sodium aliphatate into mixed fatty acid calcium soap. The additive is used for dairy cow in the medium and later lactation stage, the adding amount is 1.5-3.0% of the dry matter of daily ration of every dairy cow every day, namely the adding amount is 150-260 g, the additive is uniformly mixed with concentrated food, and the mixture is fed for the dairy cow twice every day. By the additive, thecontent of main unsaturated fatty acid in milk can be increased remarkably, and tests show that compared with a control group, the contents of oleic acid, linoleic acid and alpha-linolenic acid are separately increased by 23.74%, 27.94% and 26.67%.

Description

technical field [0001] The invention relates to the technical field of animal feed additives, in particular to an additive for increasing the content of unsaturated fatty acids in milk. Background technique [0002] According to the "Statistical Summary of China's Dairy Industry", from 2000 to 2010, the average yield of dairy cows in my country increased by 91.42%, and this trend has continued and accelerated in recent years. With the continuous excavation of the production potential of dairy cows, dairy cows need more and more nutrients, but the increase in feed intake (in terms of dry matter) is very limited, which intensifies the negative energy balance of dairy cows at the peak of lactation, which not only causes appetite It also has a huge impact on the health of dairy cows. [0003] Studies have shown that dyslipidemia is one of the main risk factors for cardiovascular and cerebrovascular diseases, and dyslipidemia is mostly caused by unbalanced dietary structure, esp...

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Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the present invention provides an additive for increasing the content of unsatur

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