CN109007321A - A kind of feed stripped additive and livestock feed composition - Google Patents

Abstract

The invention discloses the compositions of a kind of feed stripped additive and livestock feed composition, to improve feed conversion rate and weight gain efficiency by the feed intake for improving domestic animal.The feed intake of domestic animal can be improved with additive by the inclusion of the feed stripped of one sodium of Pidolidone and L-Trp, wherein the mass ratio (GLU/TRP ratio) of free one sodium of Pidolidone (condition is all to be scaled one sodium-hydrate of Pidolidone) and free L-Trp is 0.5 to 30.

Description

A kind of feed stripped additive and livestock feed composition

Technical field

The present invention relates to the compositions of feed stripped additive and livestock feed composition, they are for improving domestic animal Feed intake, feed conversion rate and weight gain.

Background technique

Domestic animal for example belongs to mammiferous pig and is raised together with its dam in certain period of time by lactation after birth, But after this, rearing method is changed to give solid feed in weaning period.At this stage, sometimes feed intake can be due to Environment after wean changes and feed type changes caused pressure and declines.Further, it is known that indigestion and sense Metachromia diarrhea or infection cause the decline of the feed intake of domestic animal in itself, and become the factor of delayed growth.

Summary of the invention

The object of the present invention is to provide feed stripped additives and livestock feed composition, will pass through further increasing The feed intake of domestic animal is added to improve feed conversion rate and weight gain efficiency.

Present inventor has performed a variety of researchs for the means of solution technical problem, as a result, it has been found that, when offer contains extra fine quality When the feed stripped of one sodium of L-Trp and Pidolidone of ratio, feed conversion rate and weight gain efficiency are improved.Thus Complete the present invention.

The present invention includes the mode of following (1) to (14).

(1) feed stripped additive, it includes one sodium of Pidolidone and L-Trps, wherein free Pidolidone one The mass ratio (GLU/TRP ratio) of sodium (condition is all to be scaled one sodium-hydrate of Pidolidone) and free L-Trp It is 0.5 to 30.

(2) feed stripped additive described in above-mentioned (1), wherein above-mentioned GLU/TRP ratio is 1.0 to 12.

(3) feed stripped additive described in above-mentioned (1) or (2), wherein replacing above-mentioned L- paddy using Pidolidone One sodium of propylhomoserin.

(4) any one of above-mentioned (1) to (3) description feed stripped additive, wherein the domestic animal be it is non-ruminate it is dynamic

Object.(5) feed stripped additive described in above-mentioned (4), wherein the non-ruminant animal is pig.

(6) livestock feed composition, it includes rely ammonia selected from L-Trp, Pidolidone, one sodium of Pidolidone and L- One or more amino acid of acid, wherein (condition is all to be scaled one sodium of Pidolidone, one water to free one sodium of Pidolidone Close object) and the mass ratio (GLU/TRP ratio) of free L-Trp be 0.5 to 30, and always L-Trp/L-lysine Mass ratio, which is greater than, is considered for domestic animal optimal ratio in nutrition.

(7) livestock feed composition described in above-mentioned (6), wherein above-mentioned GLU/TRP ratio is 1.0 to 12.

(8) livestock feed composition described in above-mentioned (6) or (7), wherein replacing above-mentioned L- paddy using Pidolidone One sodium of propylhomoserin.

(9) any one of above-mentioned (6) to (8) description livestock feed composition, wherein the domestic animal be it is non-ruminate it is dynamic Object.

(10) livestock feed composition described in above-mentioned (9), wherein the non-ruminant animal is pig.

(11) preparation method of livestock feed composition comprising: in the livestock feed composition, make GLU/ TRP ratio rate be 0.5 to 30, and make total L-Trp/L-lysine mass ratio be greater than be considered the nutrition for domestic animal Upper optimal ratio.

(12) preparation method of livestock feed composition described in above-mentioned (11), wherein into feedstuff in addition State the feed stripped additive of any one of (1) to (5) description.

(13) the feed stripped additive described with any one of above-mentioned (1) to (5) or above-mentioned (6) are appointed into (10) The method of the livestock feed composition stock raising of one description.

(14) improve the method for the feed conversion rate and weight gain efficiency of domestic animal comprising appointed into (5) with above-mentioned (1) The livestock feed composition raising of any one of one feed stripped additive described or above-mentioned (6) to (10) description The domestic animal.

In addition, being used the present invention relates to the purposes of the feed stripped additive of any one of above-mentioned (1) to (5) description In preparing livestock feed composition to improve the feed conversion rate of domestic animal and weight gain efficiency.In addition, the present invention also relates to And the description of any one of above-mentioned (1) to (5) feed stripped additive or the description of any one of above-mentioned (6) to (10) family Livestock feed composition is used to improve the feed conversion rate and weight gain efficiency of domestic animal.

Invention effect is led to according to the present invention it is possible to by feeding feed stripped additive and livestock feed composition Cross both " increasing intake using L-Trp " and " improving taste and digestive function using one sodium of Pidolidone or Pidolidone " Synergistic effect, the feed conversion rate and weight gain efficiency of domestic animal can be improved.As a result, it is possible to obtain such as improvement domestic animal The effect of productivity and economic benefit.

Specific embodiment

The embodiment of the present invention is described in detail below.

In the following, it is described that substance related to the present invention.In addition, feed stripped additive and family is described in detail Livestock feed composition, the method for preparing livestock feed composition, the feeding method for giving to domestic animal fodder compound and Promote the method for the weight gain of domestic animal.

But the present invention in domestic animal refer to for giving milk, the industry animal of meat or leather, the example of domestic animal have ox, pig, Chicken, horse, turkey, sheep and goat.

In the following, it is described that for amino acid of the invention.According to the present invention, free amino acid refers in a free form Existing amino acid, and do not include the amino acid for constituting protein.Total amino acid refers to that those contain free amino acid and structure The amino acid of both amino acid at protein.Feed stripped additive and livestock feed composition specified in the present invention In one sodium of Pidolidone be free one sodium of Pidolidone, Pidolidone is free Pidolidone, and L-lysine is Refer to total L-lysine.In addition, the L- color ammonia in feed stripped additive and livestock feed composition specified in the present invention Acid is free L-Trp or total L-Trp.

Amino acid used in the present invention can be the form of hydrate or acid anhydride.

GLU/TRP ratio used in the present invention is that (condition is all to be scaled L- paddy ammonia to free one sodium of Pidolidone A sour sodium-hydrate) and the mass ratio of L-Trp that dissociates.

Pidolidone and one sodium of Pidolidone refer to: one of one sodium of Pidolidone or Pidolidone, or contain L- paddy simultaneously Both one sodium of propylhomoserin and Pidolidone.For example, table 1 shows specific example, each acid anhydride of one sodium of Pidolidone and Pidolidone or Hydrate is scaled one sodium-hydrate of Pidolidone.

1 project Pidolidone of table one sodium-hydrate (%) Pidolidone, one sodium acid anhydride (%) Pidolidone monohydrate (%) One sodium Pidolidone reduced mass ratio 1.00.900.880.79 molecule of description Pidolidone in Pidolidone acid anhydride (%) embodiment L-amino acid specified in the amount 187.13169.11165.14147.13 present invention can be its salt.For example, L- relies ammonia Acid hydrochloride, L-lysine Pidolidone salt and L-lysine L-Aspartic acid salt.The quality of L-lysine salt can be scaled With L-lysine equimolar.

In addition, from the perspective of utilization efficiency, amino acid specified in the present invention is preferably levo form, but can also be with Use d-isomer.

It can be used through one sodium of Pidolidone made from synthetic method, extracting method or fermentation process, L- paddy ammonia Acid, L-Trp and L-lysine, but its source is not particularly limited.

In the following, it is described that free amino acid in the present invention, constitute protein amino acid and total amino acid survey Determine method.

About free amino acid: to feed stripped with pure water is added in additive, passing through amino acid using ninhydrin reaction Analyzer (such as the L-8800 type or L-8900 type high speed ammonia of HitachiHigh-TechnologiesCorporation production Base acid analysis instrument analyzes physiological fluid) concentration of Ammonia In Aqueous Solution base acid is measured, and amino acid can be calculated from measurement result Content.Can albumen carry out acidic hydrolysis after, using amino-acid analyzer (such as JEOL production amino-acid analyzer JLC-500/V, standard method) according to above-mentioned mode identical with free amino acid measuring method measure total amino acid.It can lead to It crosses and cuts the measured value of free amino acid from the measured value of total amino acid to calculate the amino acid for constituting protein.Pass through conversion The glutamic acid of measuring method detection is calculated for monosodium glutamate.Furthermore, it is possible to pass through individual liquid chromatography, gas chromatograph The measurement of method and mass spectrography or combinations thereof progress amino acid.

In the following, it is described that feed stripped of the invention (is hereinafter also referred to as that " feed adds with additive Agent ").Feed additive contains one sodium of Pidolidone and L-Trp in its composition with special ratios.

Feed is 0.5 to 30 with the GLU/TRP ratio in additive, preferably 0.5 to 20, more preferable 0.5 to 15, more preferably 0.5 to 14, further preferred 1.0 to 12, further preferred 1.0 to 11, further preferred 1.0 to 10, particularly preferred 5.0 to 10, most preferably 7.0 to 10.When feed is 0.5 or more with the GLU/TRP ratio in additive, preferably

Show effect of the invention, when GLU/TRP ratio is 30 or less, can reduce feed additive at This.

In the following, it is described that livestock feed composition of the invention (is hereinafter also referred to as " feed combinations Object ").

Fodder compound of the invention is the composition for being added to above-mentioned feed additive.

Fodder compound be comprising selected from L-Trp, Pidolidone, one sodium of Pidolidone and L-lysine one kind or The fodder compound of a variety of amino acid, wherein GLU/TRP ratio in a specific range, and total L-Trp/L-lysine Mass ratio be greater than be considered for domestic animal optimal ratio in nutrition.

GLU/TRP ratio in fodder compound is 0.5 to 30, preferably 0.5 to 20, more preferable 0.5 to 15, more preferably 0.5 to 14, further preferred 1.0 to 12, still more preferably 1.0 to 11, still more preferably 1.0 to 10, particularly preferred 5.0 To 10, most preferably 7.0 to 10.When the GLU/TRP ratio in fodder compound is 0.5 or more, the present invention is preferably shown Effect can reduce the cost of fodder compound when GLU/TRP ratio is 30 or less.

In addition, the measuring method of free amino acid, the amino acid for constituting protein and total amino acid is similar to above-mentioned use In the method for feed additive.

When the mass ratio of total L-Trp/L-lysine is greater than quality ratio required on livestock nutrition, total L-Trp/ The mass ratio of L-lysine is preferably greater than 0.15, more preferably greater than 0.19, more preferably greater than 0.20, further preferably greater than 0.21, especially preferred more than 0.22, most preferably greater than 0.24.

Furthermore it is possible to by with common feed combinations, use additive as feed of the invention in feed of the invention Composition provides.As long as common feed does not destroy effect of the invention, it is not particularly limited, and is replaced including breast milk, cream For object, preceding initial stage feed (cub early stage feed (pre-starterfeed)), initial stage feed (cub feed), fattening period feed Deng.

It can be by being mixed at least one " feedstuff " defined below come using fodder compound of the invention, only The raw material is wanted not influence effect of the invention." feedstuff " according to the present invention includes, for example, bran, such as wheat Bran, rice bran, barley bran and grain chaff；Food process by-product, such as soybean residue, starch slurry, copra meal, vinasse, soy sauce grain, The juice of brewer's grain, sweet potato distiller's wass and fruits and vegetables is starched；Cereal, such as corn, rice, wheat, barley and swallow Wheat；Oilseed extraction, such as Soybean Meal, rapeseed dregs, Cottonseed Meal, the flaxseed dregs of rice, sesame seed meal and Sunflower Cake；The feeding of animal origin Material, such as fish meal, casein, skimmed milk powder, the whey of drying, meat and bone meal, digested tankage, feather meal and blood meal；Ye Fen, such as lucerne Mu grass meal；Etc..

Filler, incremental agent, nutrition enhancer, feeding can also be cooperated in above-mentioned feed additive and fodder compound Additive etc. is expected, as long as they do not destroy effect of the invention.The example of filler has: cellulose derivative, such as carboxymethyl Cellulose；The example of incremental agent has dextrin, starch etc.；The example of nutrition enhancer has vitamin and mineral；Feed additive Example have enzyme preparation, probiotics etc..

Feed additive individually of the invention can be given to domestic animal, but can also be by adding it to general feeding In material and mixed to give.In the case where pig raising, for example, be only given breast milk after being just born, but 1-2 weeks it Afterwards, initial stage feed (cub early stage feed) before being given together with breast milk.When starting wean, becoming initial stage feed, (cub is raised Material), it is fattened later using fattening period feed.In addition, in the case where ruminant such as ox, sheep and goat, breast milk Or newborn substitute is given together with solid feed, until forming cud, is then changed completely into solid feed while wean. Feed additive of the invention can improve feed conversion rate and weight gain effect when being added in these any feeds Rate.Furthermore it is possible to feed additive and fodder compound of the invention are given to general domestic animal, but in non-ruminant animal It can show better effect.For example, for non-ruminant animal, such as pig, chicken, horse, rabbit, duck, turkey, Japanese quail and ostrich Bird can obtain the effect of excellent improvement feed conversion rate and weight gain efficiency, can sufficiently obtain institute particularly with pig State effect.

In addition, according to the present invention, the method added into feed additive and fodder compound is not particularly limited, only Want GLU/TRP ratio in fodder compound within the above range, and the mass ratio of total L-Trp/L-lysine be greater than it is upper Mass ratio is stated, for example, them can be added with pulverulence, solid state and liquid condition.

The fodder compound prepared in this way can be given to domestic animal by general feeding method.In addition, connecing Weight gain can effectively be accelerated by the domestic animal of the fodder compound.It is thought that based on ingest caused by L-Trp it is hyperfunction with And feed intake caused by the improvement of taste and digestive function caused by one sodium of Pidolidone or Pidolidone is further Increase.In addition, can continue to provide the battalion of each type and growth phase that are sufficient for domestic animal as general fattening method The feed for the demand of supporting.

Promoting the method for weight gain of domestic animal is: when giving fodder compound of the invention to domestic animal but do not limit period When, improve the method for the feed conversion rate and weight gain efficiency of domestic animal；Alternatively, giving the present invention to domestic animal over a period to come Fodder compound when, improve the method for the feed conversion rate and weight gain efficiency of domestic animal.

Therefore, the feed conversion rate obtained and providing feed of the invention with additive and fodder compound to domestic animal The domestic animal that industrially can be used for being under pressure environment with the ameliorative way of weight gain efficiency, such as change in weaning period After different feeds, or it is housed under conditions of high storage density (stockingdensity).

The present invention has been described in detail based on embodiment, but the present invention is not limited to these Examples.In addition, unless otherwise finger

It is bright, else symbol " % " expression " quality % ".

In addition, in embodiment, one sodium-hydrate of Pidolidone is used as one sodium of Pidolidone, Pidolidone acid anhydride is used as L- Glutamic acid, but as described above, each in their acid anhydride or hydrate can also be used with equimolar level.Embodiment Embodiment 1 has studied effect of the total L-Trp in feed from lacking to sufficient amount, and total L-Trp in feed In addition the effect of one sodium of Pidolidone is added when enough meet demands.Use male porkling (of 216 in total wean and castrating Square kind (Landrace) × Large White (LargeWhite) × duroc (Duroc), hybrid), using 6 circles (6/circle) as One experimental considerations unit is randomly divided into 6 processing groups by complete block design.It gives to each processing group containing ammonia shown in table 2 The comparison feed 1 to 4 (comparative example) of base acid and feed 1 and 2 (embodiment) of the invention.

According to comparative example 1 is prepared shown in table 3, contains 1.29% L-lysine, do not add one sodium of Pidolidone.For Comparative example 1 is used as basic composition, is added by cornstarch shown in substitution table 3 by comparative example 2 to 4 and Examples 1 and 2 Add each amino acid.In Examples 1 and 2, formula is designed are as follows: the additive amount of one sodium of Pidolidone is respectively to add in comparative example 4 5 times of the L-Trp added and 10 times.In comparative example 1 and 2, L-Trp is only added, so total L-Trp/L-lysine Mass ratio lower than being considered for porkling optimal ratio (0.19) in nutrition, and in comparative example 3 and 4 and embodiment In 1 and 2, it is higher than the best ratio.

The porkling of wean is set arbitrarily to absorb these foods 28 days.By when measurement on-test and to the weight after food 28 days With remaining feed, feed intake, weight gain (incrementss of weight) and feed conversion rate are calculated.As the result is shown in table 4.

Comparative example 1 to 4 as shown in table 4 as a result, the average weight equal between every group in on-test is tended to As the satisfaction (by the way that L-Trp is added) of L-Trp demand total in feed increases.Comparative example 2 to 4 is as the result is shown: When the total amount of L-Trp meets its demand, final weight reaches the stage of stable development.Compared with comparative example 4, by combining L- paddy One sodium of propylhomoserin, the final weight in Examples 1 and 2 tend to increase again.In addition, with regard to weight gain, feed intake and For feed conversion rate (forage volume needed for every increase 1kg weight), identical trend observed.

Wean is increased by the way that both L-Trp and one sodium of Pidolidone are added into feed based on result above The feed intake of porkling, and have also discovered the promotion of improvement and the development of feed conversion rate.In addition, L-Trp and L- paddy One sodium of propylhomoserin and with than be used alone L-Trp it is more efficient.

Embodiment 2 has studied effect when only adding one sodium of Pidolidone in feed.Using 216 in total wean and castrate The male porkling (local varieties × Large White × duroc, hybrid) cut, it is logical as an experimental considerations unit using 6 circles (6/circle) It crosses complete block design and is randomly divided into 6 processing groups.The comparative example 5 containing amino acid shown in table 5 is given to each processing group To 8 and embodiment 3 and 4.

According to comparative example 5 is prepared shown in table 6, this is fodder compound used in production farm, contains 1.27% L-lysine does not add one sodium of Pidolidone.For comparative example 6 to 8 and embodiment 3 and 4, comparative example 5 is used as basic group At adding each amino acid by cornstarch shown in substitution table 6.In comparative example 6 and 7, one sodium of Pidolidone is only added, Therefore their ratio is lower than being considered for porkling optimal ratio (0.19) in nutrition.In comparative example 8, by 0.11% L-Trp is added to comparative example 5.It, will formula design in embodiment 3 and 4 are as follows: the additive amount of one sodium of Pidolidone is respectively etc. The L-Trp that is added in comparative example 8 and be its 10 times amounts.In comparative example 8 and embodiment 3 and 4, L-Trp is added, Being higher than the mass ratio of total L-Trp/L-lysine is considered for porkling optimal ratio (0.19) in nutrition.

The porkling of wean is set arbitrarily to absorb these foods 28 days.By when measurement on-test and to the weight after food 28 days With remaining feed, feed intake, weight gain and feed conversion rate are calculated.As the result is shown in table 7.

Based on result above, for improving the weight gain for the porkling weaned, the effect of feed intake and feed conversion rate For fruit, and it is more more efficient than one sodium of Pidolidone is used alone with one sodium of Pidolidone and L-Trp.

Embodiment 3 under the same conditions as example 1, has studied Pidolidone and the weight of the porkling of wean is increased Add, the effect of feed intake and feed conversion rate.Existence form of one sodium of Pidolidone in alimentary canal and oral cavity is L- paddy Propylhomoserin.Using the male porkling (local varieties × Large White × duroc, hybrid) of 216 in total wean and castrating, with 6 circles (6/circle) are randomly divided into 6 processing groups by complete block design as an experimental considerations unit.It is given to each processing group The fodder compound of comparative example 9 to 12 and embodiment 5 and 6 containing amino acid shown in table 8.

According to comparative example 9 is prepared shown in table 9, this is fodder compound used in production farm, contains 1.31% L-lysine does not add one sodium of Pidolidone.For comparative example 10 to 12 and embodiment 5 and 6, comparative example 9 is used as basic Composition, adds each amino acid by cornstarch shown in substitution table 9.By gradually only adding L- color ammonia into comparative example 9 Acid prepares comparative example 10 to 12.In addition, in comparative example 9 and 10, the ratio of total L-Trp/L-lysine in every kind of feed Lower than porkling nutritionally needed for ratio (0.19).Mass ratio in comparative example 12, needed for being higher than porkling nutritionally (0.19)。

In embodiment 5 and 6, formula is designed are as follows: Pidolidone (it is scaled one sodium-hydrate of Pidolidone) Additive amount be respectively 5 times and 10 times of the L-Trp added in comparative example 12.In addition, in embodiment 5 and 6, in feed Mass ratio (0.19) needed for always the mass ratio of L-Trp/L-lysine is higher than porkling nutritionally.

Make the random feeding of porkling these foods 28 days of wean.By when measurement on-test and to the weight after food 28 days With remaining feed, feed intake, weight gain and feed conversion rate are calculated.As the result is shown in table 10.

The porkling of wean is increased by the way that both L-Trp and Pidolidone are added into feed based on result above Feed intake, and it has also been found that feed conversion rate and weight increase the improvement of efficiency.In addition, L-Trp and Pidolidone And with than be used alone L-Trp it is more efficient.

Embodiment 4 (wherein other than corn and Soybean Meal, is gone back by using the feed composition of production farm actual use Use other a variety of feedstuffs), it has studied L-Trp in feed and adds for porkling demand to be combined when sufficient quantity Add the effect of one sodium of Pidolidone.Use the male porkling (local varieties × Large White × Du Luo of 216 in total wean and castrating Gram pig, hybrid), 6 processing groups are randomly divided by complete block design using 6 circles (6/circle) as an experimental considerations unit. Comparative example 13 and 14 and and embodiment 7 to 10 containing amino acid shown in table 11 are given to each processing group.

According to comparative example 13 is prepared shown in table 12, this is fodder compound used in production farm, and is contained 1.27% L-lysine does not add one sodium of Pidolidone.

For comparative example 14 and embodiment 7 to 10, comparative example 13 is used as basic composition, by shown in substitution table 12 Cornstarch and add each amino acid.In comparative example 13, the mass ratio of total L-Trp/L-lysine is lower than porkling in nutrition Upper required ratio (0.19).But in comparative example 14, formula is designed are as follows: by the way that individual L-Trp is added to satisfaction Its demand, to obtain 0.23 mass ratio.In embodiment 7 to 10, formula is designed are as follows: the additive amount of one sodium of Pidolidone The amount of the L-Trp respectively equal to added in comparative example 14 is its 5 times, 7.5 times or 10 times；Also, total L-Trp/L- The mass ratio of lysine be higher than porkling nutritionally needed for mass ratio (0.19).

Make the random feeding of porkling these foods 28 days of wean.By when measurement on-test and to the weight after food 28 days With remaining feed, feed intake, weight gain and feed conversion rate are calculated.As the result is shown in table 13.

It is found based on result above: by providing the fodder compound of production farm actual use, in the fodder compound The amount of total L-Trp meets the needs of porkling, and it is considered as battalion that the mass ratio of total L-Trp/L-lysine, which is equal to or higher than, Upper optimal ratio is supported, and includes one sodium of Pidolidone, so that the feed intake of weaned piglets improves, and shows feeding Expect the improvement of conversion ratio and weight gain efficiency.

The Japanese patent application (Japanese patent application No. 2009-141105) that the application was submitted based on June 12nd, 2009, Entire contents are incorporated herein by reference.

Industrial applicibility fodder compound of the invention and the livestock feed for being wherein added to the fodder compound improve The feed intake of domestic animal simultaneously improves weight gain efficiency and feed conversion rate.

A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.

Claims (9)

1. a kind of feed stripped additive, which is characterized in that include one sodium of Pidolidone and L-Trp, wherein free L- Mass ratio (the GLU/ of monosodium glutamate (condition is all to be scaled one sodium-hydrate of Pidolidone) and free L-Trp TRP ratio rate) it is 1 to 10.

2. feed stripped additive described in claim 1, wherein GLU/TRP ratio is 1.0 to 12.

3. feed stripped additive of any of claims 1 or 2, wherein replacing the Pidolidone one using Pidolidone Sodium.

4. feed stripped additive described in any one of claims 1 to 3, wherein the domestic animal is non-ruminant animal.

5. feed stripped additive as claimed in claim 4, wherein the non-ruminant animal is pig.

6. livestock feed composition, it includes one selected from L-Trp, Pidolidone, one sodium of Pidolidone and L-lysine Kind or a variety of amino acid, wherein free one sodium of Pidolidone (condition is all to be scaled one sodium-hydrate of Pidolidone) and The mass ratio (GLU/TRP ratio) of free L-Trp is 0.5 to 30, and the mass ratio of total L-Trp/L-lysine Greater than being considered for domestic animal optimal ratio in nutrition.

7. livestock feed composition as claimed in claim 6, wherein GLU/TRP ratio is 1.0 to 12.

8. livestock feed composition described in claim 6 or 7, wherein replacing the Pidolidone one using Pidolidone Sodium.

9. livestock feed composition described in any one of claim 6 to 8, wherein the domestic animal is non-ruminant animal.