CN101912034B - Protective fat of rumen bypass substance - Google Patents
Protective fat of rumen bypass substance Download PDFInfo
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- CN101912034B CN101912034B CN2010102653771A CN201010265377A CN101912034B CN 101912034 B CN101912034 B CN 101912034B CN 2010102653771 A CN2010102653771 A CN 2010102653771A CN 201010265377 A CN201010265377 A CN 201010265377A CN 101912034 B CN101912034 B CN 101912034B
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Abstract
The invention relates to protective fat of a rumen bypass substance, which comprises the following components in percent by weight: 1.2-1.8 percent of C14:0, 72.0-74.0 percent of C16:0, 5.0-6.0 percent of C18:0 and 14.5-16.5 percent of C18:1. The protective fat is white powder or particles at the normal temperature, contains 1-3 percent of free fatty acid and has the iodine value of 15-17 and the melting point of 50-70 DEG C. A preparation method comprises the steps of: taking palm oil as raw materials, collecting high melting point fatty acid after removing low melting point fatty acid, and processing into the protective fat. The protective fat is nearly not degraded in the rumen of a ruminant, can realize effective protection on the substance subjected to the rumen bypass protection, and can be hydrolyzed into glycol and fatty acid under the acid environment condition of true stomach, thereby ensuring that the protected substances are fully released without excessive protection. Meanwhile, the protective fat can be better absorbed and utilized in the rumen of the ruminant so as to make up the defect of conventional dietary energy of dairy cows.
Description
Technical field
The invention belongs to field of feed processing, be specifically related to a kind of protection fat of rumen bypass substance.
Background technology
The maximum difference of ruminant and nonruminant is that it has huge cud, and cud is a biological fermentation tank that regulation and control are strict, is perching the rumen microorganism system of enormous amount in it, like bacterium, ancient bacterium, anaerobic fungi, protozoon and bacteriophage etc.In the digestibility and utilization process of feed nutrient, particularly important with rumen bacteria and ciliate, its quantity can reach 10 respectively
11Individual/mL rumen fluid and 10
5～10
6Individual/the ml rumen fluid.
Rumen microorganism has very important effect in the vital movement of ruminant; Its positive role mainly shows two aspects: the one, and can decompose the unavailable feed ingredient of animal itself and produce the material that can be utilized by animal, thereby improve the utilization ratio of feed nutrient.For example, decompose the cell wall constituent (crude fibre) that is difficult in the feed utilized and produce volatile fatty acid, thereby improve the utilization ratio of fodder energy by animal itself; The 2nd, some nutrient (like microprotein, amino acid, B family vitamin etc.) that can synthetic diet itself contain, thus remedy the deficiency of feed nutrient.Therefore, the ruminal digestion metabolism occupies crucial status in ruminant animal nutrition.Research shows; 40%～80% dry, 60%～95% crude fibre, 60%～80% organic matter, 10%～100% crude fat are all digested in cud in the ruminant, and the energy that digests in the cud accounts for 23%～87% of total digestible energy.But rumen microorganism also has certain negative consequence, because the degraded of rumen microorganism, some composition or additive in the feed promptly is destroyed in cud or decomposes, thereby be difficult to arrive abomasum and small intestine, is absorbed and used again.
Rumen-protected is the important means that prevents that feed nutrient or additive from being destroyed by rumen microorganism.After all must effectively protecting, many materials in the ruminant (like protein, amino acid, little peptide, active bacteria formulation, enzyme preparation, choline etc.) could produce desirable effect.
The rumen-protected method of nutrient or additive mainly contains following 2 kinds: the one, and nutrient or additive are modified with chemical method or changed its structure, form its analog, chelate or derivative; The 2nd, encapsulate or the microcapsules processing with physical method.In the actual production, it is more general to handle application with physical package quilt or microcapsules especially, and production cost is also lower.And the protection effect and the protective material of physical package quilt are closely related.
The protective material that uses at present mainly contains polymer, cellulose and derivative thereof, rumen bypass protein, the rumen-undegraded fat of gelatin, styrene and 2-methyl-5-vinylpyrine etc.Particularly rumen-undegraded fat has very vast potential for future development; Can effectively protect feed nutrient or additive on the one hand; Make it get into abomasum through cud safely and small intestine is used effectively; Rumen-undegraded fat originally also can be absorbed and utilize behind cud well on the other hand, thereby has improved the available energy level of feed.Therefore, filtering out desirable rumen-undegraded fat is to realize feed nutrient and the rumen-protected bottleneck problem of additive.
Summary of the invention
The protection fat that the purpose of this invention is to provide a kind of rumen bypass substance was to solve the problem that encapsulates of cud nutrient and additive physical protection.
Protection fat constituent of the present invention is mainly 16～18 carbon fatty acids (palmitic acid and stearic acid); Include weight ratio and be 1.2～1.8% C14:0 (myristic acid); 72.0～74.0% C16:0 (palmitic acid), 5.0～6.0% C18:0 (stearic acid), 14.5～16.5% C18:1 (oleic acid).The fatty normal temperature of protection of the present invention is white powder or particle, free fatty 1～3%, iodine number 15～17,50～70 ℃ of fusing points down.
Fatty preparation method is following in protection of the present invention: with palm heating crude oil to 75～80 ℃, pump in the crystallizing tank, leave standstill 1～2h; After being quickly cooled to 28～30 ℃ then, slowly cool to 18～20 ℃ again, static 3～4h makes hard fat acid homogeneously crystallized; Filter at last, collect the hard fat acid of crystallization, be crushed to 30～40 orders after the oven dry and form.
Rumen bypass substance protection fat of the present invention; Degraded hardly in ruminant tumor gastric; Needs are carried out rumen-protected material can realize effective protection; And under the sour environment condition of abomasum, can be hydrolyzed to glycerine and aliphatic acid, thus guarantee the abundant release of material to be protected, there is not the excessive problem of protection.And this fat can be well absorbed utilization after ruminant tumor gastric, the higher (NEL＞27MJ/kg), can remedy the deficiency of the conventional dietary digestibility of energy of milk cow of effective energy value.In addition, this fat is processed by natural fat, and security is good, can fully guarantee the quality safety of dairy products.
The specific embodiment
Embodiment 1
The concrete preparation method of protection fat of the present invention:
With palm heating crude oil to 75 ℃, pump in the crystallizing tank, leave standstill 2h, to remove non-homogeneous crystal grain; After being quickly cooled to 28 ℃ then, slowly cool to 18 ℃ again, static 3h makes hard fat acid homogeneously crystallized; Filter at last, remove low melting point aliphatic acid such as SCFA and unrighted acid, after the hard fat acid oven dry of collection fat crystal formation, be crushed to 30 orders and form.
The protection fat normal temperature that said method makes is white powder or particle down, and free fatty is below 0.8%, and iodine number is 13,55 ℃ of fusing points.Its fatty acid wt ratio consists of: 1.2% C14:0 (myristic acid), 72.0% C16:0 (palmitic acid), 5.0% C18:0 (stearic acid), 14.5% C18:1 (oleic acid).
Embodiment 2
With palm heating crude oil to 80 ℃, pump in the crystallizing tank, leave standstill 2h, to remove non-homogeneous crystal grain; After being quickly cooled to 30 ℃ then, slowly cool to 20 ℃ again, static 4h makes hard fat acid homogeneously crystallized; Filter at last, remove low melting point aliphatic acid such as SCFA and unrighted acid, after the hard fat acid oven dry of collection fat crystal formation, be crushed to 40 orders and form.
Its fatty acid wt ratio of protection fat of preparation consists of C14:0 (myristic acid) 1.8%, C16:0 (palmitic acid) 74.0%, C18:0 (stearic acid) 6.0%, C18:1 (oleic acid) 16.5%.Normal temperature is white powder or particle down, free fatty 2%, and iodine number is 15, fusing point is 54.5 ℃.
The compliance test result of protection fat of the present invention:
1. utilize milk cow and sheep that permanence lymphoma stomach fistulization pipe and duodenum front end fistula are housed, adopt cud Nylon Bag method and small intestine activity Nylon Bag method mensuration, this fat degradation rate of 48 hours in cow rumen is 0.68%, small intestine absorptivity 51.40%; 48 hours degradation rate is 1.42% in sheep rumen, small intestine absorptivity 70.63%.
2. utilize should fat in core: the wall material is that 40: 60 ratio encapsulates the L-Lys hydrochloride, and through test determination, 12 hours release rate is 37.54% to encapsulate lysine in artificial saliva; 36 hours degradation rate is 61.48% in the sheep rumen, and the small intestine absorptivity is 99.76%; 36 hours degradation rate is 39.31% in the cow rumen, small intestine absorptivity 64.92%.
3. utilize should fat in core: the wall material is that 50: 50 ratio encapsulates the DL-methionine, and through test determination, 12 hours release rate is 30.36% to encapsulate methionine in artificial saliva; 36 hours degradation rate is 48.08% in the sheep rumen, small intestine absorptivity 99.20%; 36 hours degradation rate is 32.78% in the cow rumen, small intestine absorptivity 67.92%.
Claims (1)
1. the preparation method of the protection of rumen bypass substance fat is characterized in that palm heating crude oil to 75～80 ℃ are pumped in the crystallizing tank, leaves standstill 1～2h; After being quickly cooled to 28～30 ℃ then, slowly cool to 18～20 ℃ again, static 3～4h makes hard fat acid homogeneously crystallized; Filter at last, collect the hard fat acid of crystallization, be crushed to 30～40 orders after the oven dry and form; This protection fat constituent is mainly palmitic acid and stearic acid, includes weight ratio and be 1.2～1.8% myristic acid, 72.0～74.0% palmitic acid, 5.0～6.0% stearic acid, 14.5～16.5% oleic acid; This is protected and is white powder or particle, free fatty 1～3%, iodine number 15～17,50～70 ℃ of fusing points under the fatty normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102653771A CN101912034B (en) | 2010-08-28 | 2010-08-28 | Protective fat of rumen bypass substance |
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|---|---|---|---|
| CN2010102653771A CN101912034B (en) | 2010-08-28 | 2010-08-28 | Protective fat of rumen bypass substance |
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| CN101912034A CN101912034A (en) | 2010-12-15 |
| CN101912034B true CN101912034B (en) | 2012-07-11 |
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| CN2010102653771A Expired - Fee Related CN101912034B (en) | 2010-08-28 | 2010-08-28 | Protective fat of rumen bypass substance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3273795A4 (en) * | 2015-03-25 | 2018-11-21 | Benemilk Oy | Rumen by-pass animal feed composition and method of making same |
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| CN102669450B (en) * | 2012-01-15 | 2013-12-18 | 河南科技大学 | Milk cow energy extender and preparation method thereof |
| CN102919605B (en) * | 2012-11-12 | 2013-09-11 | 青岛农业大学 | Fat amino acid rumen feed compound for milk goats and preparation method thereof |
| CN102948652B (en) * | 2012-12-12 | 2014-05-07 | 山东中大牧业集团有限公司 | Ruminant animal fat powder and preparation process thereof |
| CN103549153A (en) * | 2013-11-11 | 2014-02-05 | 张维 | Rumen protected choline chloride particle as well as production method thereof |
| CN104012789B (en) * | 2014-05-23 | 2015-11-25 | 山西省生态畜牧产业管理站 | Beef-flavouring regulation feedstuff additive and preparation method thereof |
| WO2020193592A1 (en) * | 2019-03-27 | 2020-10-01 | Frieslandcampina Nederland B.V. | Bovine milk having a high n6-polyunsaturated fatty acid content |
| CN112704157A (en) * | 2020-12-24 | 2021-04-27 | 广东海洋大学 | Total mixed ration for improving digestive absorption of goat nutrients and preparation method thereof |
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2010
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| EP3273795A4 (en) * | 2015-03-25 | 2018-11-21 | Benemilk Oy | Rumen by-pass animal feed composition and method of making same |
| EP3273793A4 (en) * | 2015-03-25 | 2018-11-21 | Benemilk Oy | Amino acid animal feed composition |
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| CN101912034A (en) | 2010-12-15 |
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