CN101053372A - Rumen bypass methionine feed for feeding cow and its preparation method and application - Google Patents
Rumen bypass methionine feed for feeding cow and its preparation method and application Download PDFInfo
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- CN101053372A CN101053372A CNA200610072173XA CN200610072173A CN101053372A CN 101053372 A CN101053372 A CN 101053372A CN A200610072173X A CNA200610072173X A CN A200610072173XA CN 200610072173 A CN200610072173 A CN 200610072173A CN 101053372 A CN101053372 A CN 101053372A
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Abstract
The present invention relates to a rumen bypass methionine feed for feeding cow, it is composed of Met-Mg chelate, Met-Fe chelate, Met-Mn chelate according to molar ratio 5 to 10: 1: 1 mixing. The rumen bypass methionine feed overcomes the defects of overprotection or results strictly dependent on the pH value of amino in existing this kind of feed. The rumen bypass methionine feed of the present invention is more stable, can provide methionine at the back of gastrointestinal and complement various trace elements at the same time. The rumen bypass methionine feed of the present invention can provide rumen bypass limiting amino acids for cow especially those at the peak period of lactation or summer heat stress cows, its rumen bypass rate is more than 70 percent, thus can improve protein nutrition condition for cow, enhance obviously free Met level in cow blood plasma, maintain or increase milk protein content in milk, and provide more organic trace elements, enhance milk health, and promote utility of feed protein.
Description
Technical field
The present invention relates to the feed of a kind of milk cow, particularly relate to a kind of milk cow peak of lactation and summer fever stress the time rumen bypass methionine feed of feeding, and method for making and purposes.
Background technology
Milk cow is when peak of lactation, because the output of milk is big, a large amount of protein are discharged with milk, and are therefore higher to the requirement of protein.If the protein that absorbs does not satisfy the needs of milk bovine lactation, will cause the decline of protein relative amount in the milk from alimentary canal.Milk cow is when heat stress, because feed intake reduces, effective protein deficient of taking in from daily ration if correspondingly do not improve effective Protein content in the dairy cow diet this moment, also can cause the decline of protein relative amount in the milk, and high yield cow more so.
3.0% content of milk protein is rolling off the production line of present China most of Dairy Processing pension parachute raw material milk price.Owing to above-mentioned similar reason, in the milk that milk cow manufacturing enterprise sells, content of milk protein does not often reach this requirement, causes selling price to descend significantly, causes serious economy loss to enterprise.This is the serious problems that present China many milk cows manufacturing enterprise is faced.The content of milk protein that how to improve milk becomes many cattle farms by reducing economic loss, increasing the difficult problem that the anxious desire of income solves.
The method of traditional raising protein ratio is to replenish rumen bypass protein in feed, and by-pass protein has significant limitation: 1. replace degrade proteins with non-degrade proteins in daily ration, can influence the synthetic of microprotein, cause entering the microprotein quantity decline (Clark etc., 1992) of small intestine; 2. but the amino acid of metabolizable protein is formed the uneven output that can influence milk.With regard to amino acid content and lumen fermentation ability, fish meal is the good source of methionine, feather meal branched-amino acid content is abundant, blood meal contains more lysine, but methionine content is low, corn gluten meal is leucic good source, but lysine content is low ... result's low by-pass protein of certain amino acid content of feeding will increase the weight of the shortage of this seed amino acid; 3. the rumen bypass protein such as the meat meal tankage of being produced by milk cow, sheep, haslet may cause the continuous tissue disease (BSE or rabid ox disease) of ox brain, and bring threat to human and livestock health.Stipulate in (2001) No. 7 files of China Ministry of Agriculture agriculture and animal husbandry method,, forbid in ruminant feed, adding animal fodder raw materials such as using meat meal tankage from March calendar year 2001.4. by-pass protein also may be not easy digestion in small intestine; 5. the digestion product of the by-pass protein of separate sources interacts, and has reduced the nutritive value of self; 6. the change of environment in the cud, the reduction of microorganism combined coefficient, the quickening of chyme percent of pass all can influence the effect of by-pass protein; 7. in addition, use and feed not only cost height of by-pass protein, and can influence health and the production status of milk cow.This is the nitrogen because of necessary metabolism excess of ammonia base acid of milk cow and eliminating surplus, thereby also can cause environmental pollution.
Because the above-mentioned limitation of by-pass protein, people transfer to research emphasis on the rumen-bypass amino acid.Commonly used at present is to use methionine (Met) as the rumen-bypass amino acid feed, and it is one of two kinds of most important limiting amino acids of milk cow.In use, this rumen-bypass amino acid mainly adopts following two kinds of bags by mode:
1. use fat and aliphatic acid bag by rumen-bypass amino acid, wherein amount of amino acid accounts for 30% of gross weight.The potential problems of the processed method of this bag are that overprotection can take place amino acid, can produce compounds such as stearic acid with very big inertia, Arabic gum in cud, and it also is difficult to digestion in small intestine.
2. utilize pH sensitive polymers bag by amino acid, this polymer is stable in normal cud, but when arriving abomasum or small intestine, and bag is aggregated thing and dissolves and break, and discharges free amino acid, is absorbed by the effective absorption site of intestines and stomach.Adopt polycomplex to wrap the problem that can be solved the amino acid overprotection by amino acid.But this polymer relies on strict pH value, and when the pH value was lower than 4.5 in the cud, the stability of protective amino acid in cud can descend greatly.
Summary of the invention
The objective of the invention is to overcome existing rumen-bypass amino acid feed exists amino acid that overprotection can take place; or the strict defective that relies on the pH value of its effect; thereby providing a kind of has advantages of higher stability in cud, can provide methionine to milk cow at the rear portion alimentary canal; replenish the rumen bypass methionine feed of the feeding cow of various trace elements simultaneously, and method for making and purposes.
The objective of the invention is to realize by the following technical solutions:
The invention provides a kind of rumen bypass methionine feed of feeding cow, it is what obtain by following method:
(1) with the L-Met aqueous solution and MgSO
4The aqueous solution is pressed L-Met: MgSO
4Mol ratio be 2～3: 1 mixed, at 60～85 ℃, pH5～8, chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Mg chelating salt crude product; And then, obtain purity at the L-Met-Mg chelating salt more than 90% by organic solvent washing removal of impurities, filtration and spray-drying;
The mass concentration of the described L-Met aqueous solution preferred 15%;
Described MgSO
4The mass concentration of the aqueous solution preferred 22%;
Described organic solvent is an ethanol, propyl alcohol or acetone;
(2) with the L-Met aqueous solution and FeSO
4The aqueous solution is pressed L-Met: FeSO
4Mol ratio be 2～3: 1 mixed, and add antioxidant, at 60～85 ℃, pH5～7, chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Fe chelating salt crude product; And then, obtain purity at the L-Met-Fe chelating salt more than 90% by organic solvent washing, filtration and spray-drying;
The mass concentration of the described L-Met aqueous solution preferred 15%;
Described FeSO
4The mass concentration of the aqueous solution preferred 60%;
Described antioxidant is vitamin C (VC), and its addition accounts for FeSO
43～5% of quality;
Described organic solvent is an ethanol, propyl alcohol or acetone;
(3) with the L-Met aqueous solution and MnSO
4The aqueous solution is pressed L-Met: MnSO
4Mol ratio be 2～3: 1 mixed, and add antioxidant, at 60～85 ℃, pH5～7, chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Mn chelating salt crude product; And then, obtain purity at the L-Met-Mn chelating salt more than 90% by organic solvent washing, filtration and spray-drying;
The mass concentration of the described L-Met aqueous solution preferred 15%;
Described MnSO
4The mass concentration of the aqueous solution preferred 25%;
Described antioxidant is vitamin C (VC), and its addition accounts for MnSO
41% of quality;
Described organic solvent is an ethanol, propyl alcohol or acetone;
(4) the Met-Mg chelating salt that step (1), (2) and (3) are obtained, Met-Fe chelating salt, Met-Mn chelating salt in molar ratio 5～10: 1: 1 mixing, promptly obtain rumen bypass methionine feed of the present invention, and wherein contain Met more than 75%.
The function of rumen bypass methionine feed provided by the invention is to be milk cow, particularly be in the milk cow of peak of lactation or summer fever stress situation, cud limiting amino acid (methionine) was provided, it crosses the cud rate more than 70%, thereby improves the proteinaceous nutrient situation of milk cow, significantly improves milk cow plasma free Met level, keep or improve content of milk protein in the milk, for milk cow provides multiple organic trace element, promote milk cow health simultaneously, and can promote the utilization of feed protein.
Compared with prior art; rumen bypass methionine feed of the present invention has overcome the problem that overprotection can take place for amino acid that existing rumen-bypass amino acid feed exists; its effect also need not the strict pH of dependence value; it has advantages of higher stability in cud; can provide methionine to milk cow at the rear portion alimentary canal; replenish various trace elements simultaneously, this is that other rumen-bypass amino acids all are beyond one's reach.In sum, the advantage of this feed is:
1. rumen bypass methionine product preparation method provided by the invention is simple, and free-running property is good in process of production, the product homogeneous.
2. rumen bypass methionine provided by the invention has good stability in cud, cross the cud rate and reach more than 70%, and be absorbed fully behind cud, can provide rumen bypass methionine for milk cow efficiently.
3. rumen bypass methionine provided by the invention also provides trace element to milk cow when providing limiting amino acid for milk cow, be that other rumen bypass methionine products are all too late.
The specific embodiment
Embodiment 1:
(1) with the 15wt%L-Met aqueous solution and 22wt%MgSO
4The aqueous solution is pressed L-Met: MgSO
4Mol ratio 2: 1 mixed, at 75 ℃, pH7.5, chelatropic reaction is 2 hours under the condition of normal pressure, obtains Met-Mg chelating salt crude product; And then, obtain purity at the L-Met-Mg chelating salt more than 90% by ethanol washing impurity-removing, filtration and spray-drying;
(2) with the 15%L-Met aqueous solution and 60%FeSO
4The aqueous solution is pressed L-Met: FeSO
4Mol ratio be 2: 1 mixed, and add and account for FeSO
43% VC of quality, at 75 ℃, pH6.0, chelatropic reaction is 2 hours under the condition of normal pressure, obtains Met-Fe chelating salt crude product; And then, obtain purity at the L-Met-Fe chelating salt more than 90% by propyl alcohol washing, filtration and spray-drying;
(3) with the 15%L-Met aqueous solution and 25%MnSO
4The aqueous solution is pressed L-Met: MnSO
4Mol ratio be 2: 1 mixed, and add and account for MnSO
4The 1%VC of quality, at 75 ℃, pH7.0, chelatropic reaction is 2 hours under the condition of normal pressure, obtains Met-Mn chelating salt crude product; And then, obtain purity at the L-Met-Mn chelating salt more than 90% by acetone washing, filtration and spray-drying;
(4) 10: 1: 1 in molar ratio mixings of Met-Mg chelating salt, Met-Fe chelating salt, Met-Mn chelating salt that step (1), (2) and (3) are obtained, promptly obtain rumen bypass methionine feed I of the present invention, it comprises Met 79%, Mg 4.4%, Fe 0.8%, Mn 0.9%, and the cud rate of crossing of this rumen bypass methionine feed is more than 70%.
Embodiment 2:
(1) with the 15wt%L-Met aqueous solution and 22wt%MgSO
4The aqueous solution is pressed L-Met: MgSO
4Mol ratio 3: 1 mixed, at 75 ℃, pH7.5, chelatropic reaction is 2 hours under the condition of normal pressure, obtains Met-Mg chelating salt crude product; And then, obtain purity at the L-Met-Mg chelating salt more than 90% by ethanol washing impurity-removing, filtration and spray-drying;
(2) with the 15%L-Met aqueous solution and 60%FeSO
4The aqueous solution is pressed L-Met: FeSO
4Mol ratio be 3: 1 mixed, and add and account for FeSO
43% VC of quality, at 75 ℃, pH6.0, chelatropic reaction is 2 hours under the condition of normal pressure, obtains Met-Fe chelating salt crude product; And then, obtain purity at the L-Met-Fe chelating salt more than 90% by propyl alcohol washing, filtration and spray-drying;
(3) with the 15%L-Met aqueous solution and 25%MnSO
4The aqueous solution is pressed L-Met: MnSO
4Mol ratio be 3: 1 mixed, and add and account for MnSO
4The 1%VC of quality, at 75 ℃, pH7.0, chelatropic reaction is 2 hours under the condition of normal pressure, obtains Met-Mn chelating salt crude product; And then, obtain purity at the L-Met-Mn chelating salt more than 90% by acetone washing, filtration and spray-drying;
(4) 5: 1: 1 in molar ratio mixings of Met-Mg chelating salt, Met-Fe chelating salt, Met-Mn chelating salt that step (1), (2) and (3) are obtained, promptly obtain rumen bypass methionine feed II of the present invention, it comprises Met 82.3%, Mg 3.6%, Fe 1.1%, Mn 1.2%, and the cud rate of crossing of this rumen bypass methionine feed is more than 70%.
Claims (8)
1, a kind of rumen bypass methionine feed of feeding cow, it is what obtain by following method:
(1) with the L-Met aqueous solution and MgSO
4The aqueous solution is pressed L-Met: MgSO
4Mol ratio be 2～3: 1 mixed, at 60～85 ℃, pH 5～8, chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Mg chelating salt crude product; And then, obtain purity at the L-Met-Mg chelating salt more than 90% by organic solvent washing removal of impurities, filtration and spray-drying;
(2) with the L-Met aqueous solution and FeSO
4The aqueous solution is pressed L-Met: FeSO
4Mol ratio be 2～3: 1 mixed, and add and account for FeSO
4The antioxidant of quality 3～5%, at 60～85 ℃, pH 5～7, and chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Fe chelating salt crude product; And then, obtain purity at the L-Met-Fe chelating salt more than 90% by organic solvent washing, filtration and spray-drying;
(3) with the L-Met aqueous solution and MnSO
4The aqueous solution is pressed L-Met: MnSO
4Mol ratio be 2～3: 1 mixed, and add and account for MnSO
4The antioxidant of quality 1%, at 60～85 ℃, pH 5～7, and chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Mn chelating salt crude product; And then, obtain purity at the L-Met-Mn chelating salt more than 90% by organic solvent washing, filtration and spray-drying;
(4) the Met-Mg chelating salt that step (1), (2) and (3) are obtained, Met-Fe chelating salt, Met-Mn chelating salt in molar ratio 5～10: 1: 1 mixing promptly obtains rumen bypass methionine feed of the present invention.
2, the rumen bypass methionine feed of feeding cow as claimed in claim 1 is characterized in that: the antioxidant in described step (2) and (3) is a vitamin C.
3, the rumen bypass methionine feed of feeding cow as claimed in claim 1 is characterized in that: the organic solvent in described step (1), (2) and (3) is ethanol, propyl alcohol or acetone.
4, a kind of method for preparing the rumen bypass methionine feed of the described feeding cow of claim 1 comprises following step:
(1) with the L-Met aqueous solution and MgSO
4The aqueous solution is pressed L-Met: MgSO
4Mol ratio be 2～3: 1 mixed, at 60～85 ℃, pH 5～8, chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Mg chelating salt crude product; And then, obtain purity at the L-Met-Mg chelating salt more than 90% by organic solvent washing removal of impurities, filtration and spray-drying;
(2) with the L-Met aqueous solution and FeSO
4The aqueous solution is pressed L-Met: FeSO
4Mol ratio be 2～3: 1 mixed, and add and account for FeSO
4The antioxidant of quality 3～5%, at 60～85 ℃, pH 5～7, and chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Fe chelating salt crude product; And then, obtain purity at the L-Met-Fe chelating salt more than 90% by organic solvent washing, filtration and spray-drying;
(3) with the L-Met aqueous solution and MnSO
4The aqueous solution is pressed L-Met: MnSO
4Mol ratio be 2～3: 1 mixed, and add and account for MnSO
4The antioxidant of quality 1%, at 60～85 ℃, pH 5～7, and chelatropic reaction is 2～4 hours under the condition of normal pressure, obtains Met-Mn chelating salt crude product; And then, obtain purity at the L-Met-Mn chelating salt more than 90% by organic solvent washing, filtration and spray-drying;
(4) the Met-Mg chelating salt that step (1), (2) and (3) are obtained, Met-Fe chelating salt, Met-Mn chelating salt in molar ratio 5～10: 1: 1 mixing promptly obtains rumen bypass methionine feed of the present invention.
5, preparation method as claimed in claim 4 is characterized in that: the antioxidant in described step (2) and (3) is a vitamin C.
6, preparation method as claimed in claim 4 is characterized in that: the organic solvent in described step (1), (2) and (3) is ethanol, propyl alcohol or acetone.
7, the rumen bypass methionine feed of the described feeding cow of one of claim 1 to 3 provided the purposes of cud limiting amino acid for milk cow.
8, purposes as claimed in claim 7 is characterized in that: described milk cow is the milk cow that is in peak of lactation or summer fever stress situation.
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| CNA200610072173XA CN101053372A (en) | 2006-04-14 | 2006-04-14 | Rumen bypass methionine feed for feeding cow and its preparation method and application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889317A (en) * | 2017-02-21 | 2017-06-27 | 浙江农林大学 | A kind of young age ruminant early weaning accelerator and its feeding method |
| CN107568466A (en) * | 2017-11-01 | 2018-01-12 | 北京首农畜牧发展有限公司 | A kind of milk cow tryptophan feed, feed manufacture method and tryptophan application |
| CN108935988A (en) * | 2018-05-08 | 2018-12-07 | 青岛农业大学 | A kind of perfect compound feed meeting finishing period alpaca methionine requirement |
| CN112931699A (en) * | 2021-03-29 | 2021-06-11 | 江苏省农业科学院 | Rumen-bypass amino acid and preparation method thereof |
-
2006
- 2006-04-14 CN CNA200610072173XA patent/CN101053372A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889317A (en) * | 2017-02-21 | 2017-06-27 | 浙江农林大学 | A kind of young age ruminant early weaning accelerator and its feeding method |
| CN107568466A (en) * | 2017-11-01 | 2018-01-12 | 北京首农畜牧发展有限公司 | A kind of milk cow tryptophan feed, feed manufacture method and tryptophan application |
| CN108935988A (en) * | 2018-05-08 | 2018-12-07 | 青岛农业大学 | A kind of perfect compound feed meeting finishing period alpaca methionine requirement |
| CN112931699A (en) * | 2021-03-29 | 2021-06-11 | 江苏省农业科学院 | Rumen-bypass amino acid and preparation method thereof |
| CN112931699B (en) * | 2021-03-29 | 2023-08-04 | 江苏省农业科学院 | Rumen bypass amino acid and preparation method thereof |
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