NL2029762B1 - Pellet feed for supplementary feeding yaks after grazing and preparation method thereof - Google Patents

Pellet feed for supplementary feeding yaks after grazing and preparation method thereof Download PDF

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NL2029762B1
NL2029762B1 NL2029762A NL2029762A NL2029762B1 NL 2029762 B1 NL2029762 B1 NL 2029762B1 NL 2029762 A NL2029762 A NL 2029762A NL 2029762 A NL2029762 A NL 2029762A NL 2029762 B1 NL2029762 B1 NL 2029762B1
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parts
feed
yaks
pellet feed
grazing
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NL2029762A
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Dutch (nl)
Inventor
Wang Xungang
Zhao Na
Zhao Xinquan
Xu Tianwei
Zhang Xiaoling
Zhou Huakun
Xu Shixiao
Hu Linyong
Liu Hongjin
Zhao Liang
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Northwest Inst Plateau Bio Cas
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/10—Feeding-stuffs specially adapted for particular animals for ruminants
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/40—Mineral licks, e.g. salt blocks
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/174—Vitamins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/22—Compounds of alkali metals
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/24—Compounds of alkaline earth metals, e.g. magnesium
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/26—Compounds containing phosphorus
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/30—Oligoelements
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K40/00—Shaping or working-up of animal feeding-stuffs
    • A23K40/20—Shaping or working-up of animal feeding-stuffs by moulding, e.g. making cakes or briquettes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/10—Feeding-stuffs specially adapted for particular animals for ruminants
    • A23K50/15—Feeding-stuffs specially adapted for particular animals for ruminants containing substances which are metabolically converted to proteins, e.g. ammonium salts or urea

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Animal Husbandry (AREA)
  • Inorganic Chemistry (AREA)
  • Birds (AREA)
  • Health & Medical Sciences (AREA)
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  • Botany (AREA)
  • Molecular Biology (AREA)
  • Mycology (AREA)
  • Physiology (AREA)
  • Fodder In General (AREA)

Abstract

The present disclosure discloses a pellet feed for supplementary feeding yaks after grazing, comprising the following components in parts by weight: 30—40 parts of corn, 40—50 parts of highland barley, 15—20 parts of rape—cake, 1—2 parts of salt, 1—2 parts of composite premix, 0.3—0.6 parts of urea and 0.3—0.6 parts of calcium hydrogen phosphate. The preparation method comprising the following steps: 8101, weighing corn, highland barley and rape— cake, crushing respectively and then mixing with each other to obtain the first stock; 8102, according to the predefined parts by weight, respectively weighing salt, composite premix, urea and calcium hydrogen phosphate and mixing with each other to obtain the second stock; 8103, adding the second stock into the first stock and mixing with stirring to obtain a mixture; 8104, feeding the mixture into pelleting equipment for pelletization, and then cooling to obtain the pellet feed.

Description

P804/NLpd
PELLET FEED FOR SUPPLEMENTARY FEEDING YAKS AFTER GRAZING AND
PREPARATION METHOD THEREOF
TECHNICAL FIELD
The present disclosure relates to the technical field of feed, and specifically relates to a pellet feed for supplementary feeding yaks after grazing and a preparation method thereof.
BACKGROUND ART
The animal husbandry in alpine pastoral areas of Qinghai-
Tibet Plateau still follows the traditional production mode of grassland animal husbandry, grazing throughout the year and with natural grassland as the only source of forage. The seasonal fluc- tuation in the number and nutritional quality of forage results in prominent seasonal contradiction between supply and demand of grass and livestock during warm season and cold season in animal husbandry production in alpine pastoral areas, and extensive pas- toral areas have already faced serious grassland degradation. The breeding industry is facing a shortage of forage resources, espe- cially inadequate standing crop of forage, lack of nutrition in the forage collocation, low utilization rate and other problems during cold season, resulting in that the production performance of the livestock shows a regular pattern of summer satiation, au- tumn fatness, winter thinness and spring death as the grassland changes seasonally.
In the harsh alpine ecological environment, temperature va- ries widely from day to night, the solar radiation is intense, the plants are low, and the growth period of forage is short. The yield and nutrition of forage in natural grassland show seasonal changes. During warm season, the forage is high in yield and ade- quate in nutrition; while during cold season, the forage is inade- quate and the nutrition is lacking, especially the protein feed, causing nutrition imbalance of the livestock under natural grazing conditions, and reducing the conversion efficiency of matter and energy. The body weight of the yak increases and decreases with the seasons, and the nutrition of the yak go through a vicious cy-
cle of compensation, accumulation and consumption repeatedly with the green, luxuriant and yellow of forage. In the utilization of forage in alpine pastoral areas, the nutrition collocation of forage has a low added value, protein and energy feed for the gra- zing livestock is in shortage during cold season, and there is prominent contradiction between supply and demand of grass and livestock, all these problems have become the bottleneck of re- stricting the development of animal husbandry in alpine pastoral areas, seriously affecting the sustainable development of animal husbandry in the grassland.
SUMMARY
In view of this, the present disclosure provides a pellet feed for supplementary feeding yaks after grazing and a preparati- on method thereof. The pellet feed is easy to store and transport and is not affected by seasonal climate, ensuring the source of feed all-weather, getting rid of the situation of relying on the nature to raise livestock, and effectively solving the problems of inadequate forage production and lack of nutrition caused by the long winter in alpine pastoral areas.
To realize the above inventive purposes, the present dis- closure employs the following technical schemes:
A pellet feed for supplementary feeding yaks after grazing, comprising the following components in parts by weight: 30-40 parts of corn, 40-50 parts of highland barley, 15-20 parts of ra- pe-cake, 1-2 parts of salt, 1-2 parts of composite premix, 0.3-0.6 parts of urea and 0.3-0.6 parts of calcium hydrogen phosphate, the pellet feed is prepared by mixing the above components and then pelleting.
Wherein, the composite premix a commercial composite premix for fattening yaks containing microelements and vitamins.
Wherein, the partical size of the finished pellet feed is 10 mm-20 mm.
The present disclosure also provides a preparation method of the above pellet feed for supplementary feeding yaks after gra- zing, which comprises the following steps: S101, according to the predefined parts by weight, respectively weighing corn, highland barley and rape-cake, respectively crushing into particles of 80-
100 meshes and then mixing with each other to obtain the first stock; 5102, according to the predefined parts by weight, respec- tively weighing salt, composite premix, urea and calcium hydrogen phosphate and mixing with each other to obtain the second stock; 8103, adding the second stock into the first stock and mixing with stirring to obtain a mixture; S104, feeding the mixture into pel- leting equipment for pelletization, and then cooling to obtain the pellet feed.
In particular, in step S101, according to the principle of firstly adding materials with large partical size and small speci- fic gravity, adding the crushed rape-cake, highland barley and corn into a stirring device in order, and mixing with stirring to obtain the first stock.
In particular, in step $8103, firstly adding the second stock into a dispersing agent and mixing with stirring to obtain an in- termediate mixture, then adding the intermediate mixture into the first stock and mixing with stirring to obtain the mixture.
In particular, the dispersing agent is corn powder that is crushed to 40-50 meshes.
In particular, in step S101, the accuracy of the weighing de- vice for weighing corn, highland barley and rape-cake is 0.1%; and in step 38102, the accuracy of the weighing device for weighing salt, composite premix, urea and calcium hydrogen phosphate is 0.01%-0.02%.
Beneficial effects:
A pellet feed for supplementary feeding yaks after grazing and a preparation method thereof are provided in the examples of the present disclosure. The pellet feed easy to store and transport and is not affected by seasonal climate; resourceful agricultural and sideline products are employed as the main raw materials, ensuring the source of feed all-weather, getting rid of the situation of relying on the nature to raise livestock, and ef- fectively solving the problems of inadequate forage production and lack of nutrition caused by the long winter in alpine pastoral areas. The pellet feed has the advantages of high feeding effici- ency, stable nutritional components, high digestibility, preven- ting animals from being picky eaters, reducing the waste in fee-
ding, improving the production performance and the like.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a flow diagram showing the preparation method of the pellet feed as provided in the examples of the present dis- closure.
DETAILED DESCRIPTION OF THE EMBODIMENTS
As described above, the present disclosure aims to overcome the problems of inadequate forage production and lack of nutrition caused by the long winter in alpine pastoral areas, and provides a pellet feed for supplementary feeding yaks after grazing and a preparation method thereof.
In particular, the pellet feed includes the following compo- nents in parts by weight: 30-40 parts of corn, 40-50 parts of highland barley, 15-20 parts of rape-cake, 1-2 parts of salt, 1-2 parts of composite premix, 0.3-0.6 parts of urea and 0.3-0.6 parts of calcium hydrogen phosphate. The above components are prepared into the pellet feed by processing through a series of advanced processing equipment and production processes including crushing, batching, mixing, pelleting, cooling and so on.
Wherein, the composite premix is a commercial composite pre- mix for fattening yaks containing microelements and vitamins. The partical size of the finished pellet feed is 10 mm-20 mm.
As shown in Fig. 1, a preparation method of the above pellet feed for supplementary feeding yaks after grazing, including the following steps:
S101, according to the predefined parts by weight, respecti- vely weighing corn, highland barley and rape-cake, respectively crushing into particles of 80-100 meshes and then mixing with each other to obtain the first stock. In particular, firstly, for the above raw materials need to be crushed, the water content should be controlled below 13% so as to reduce the power consumption during crushing. Secondly, the stirring time for mixing the above crushed raw materials by the mixing machine is about 5 min-8 min.
In addition, the mixing uniformity of various components in the mixture is measured with the coefficient of variation of mixing uniformity, and the coefficient of variation is required to be less than 10% in this step.
5102, according to the predefined parts by weight, respecti- vely weighing salt, composite premix, urea and calcium hydrogen phosphate and mixing with each other to obtain the second stock.
In particular, the stirring time for mixing by the mixing machine 5 is about 5 min-8 min. The mixing uniformity of various components in the mixture is also measured with the coefficient of variation of mixing uniformity, and the coefficient of variation is required to be less than 10% in this step.
S103, adding the second stock into the first stock and mixing with stirring to obtain a mixture. In particular, the stirring ti- me for mixing by the mixing machine is about 2 min-3 min. The coefficient of variation of mixing uniformity is required to be not greater than 7%. 8104, feeding the mixture into pelleting equipment for pel- letization, and then cooling to obtain the pellet feed.
Wherein, the stirred mixture is fed into a ring die pellet machine through an elevator for pelletization. During the proces- sing of the pellet feed, the water content of the mixed semi- finished powder generally varies between 93 and 14%, so that the produced pellet feed has a good processing quality, a uniform fi- nish, and a low powder ratio, meanwhile the power consumption is also low, and the water content of the final product is also easy to meet the standard requirements. The final water content of the processed pellet feed is generally controlled within 12% (in sum- mer) - 14% (in winter). Furthermore, the temperature of the pellet feed pressed out of the pelleting machine is about 65°C, and its water content is over 13%, so it is required to properly cool the pellet products, which is generally controlled by the cooling time and the amount of cooling air. After cooling, the pellet feed is dehydrated, and at the same time, the temperature is reduced to no more than 3-5°C higher than room temperature. When the pellet feed is cooled, the cooling process should be mild and uniform, the cooling rate should not be too fast, so as to avoid cracking on the surface of the pellet feed and increase the powder ratio.
In particular, in step S101, according to the principle of firstly adding materials with large partical size and small speci- fic gravity, adding the crushed rape-cake, highland barley and corn into a stirring device in order, and mixing with stirring to obtain the first stock.
In particular, in step 3103, firstly adding the second stock into a dispersing agent and mixing with stirring to obtain an in- termediate mixture, then adding the intermediate mixture into the first stock and mixing with stirring to obtain the mixture.
In particular, the dispersing agent is corn powder that is crushed to 40-50 meshes.
In particular, in step S101, the accuracy of the weighing de- vice for weighing corn, highland barley and rape-cake is 0.1%; and in step 5102, the accuracy of the weighing device for weighing salt, composite premix, urea and calcium hydrogen phosphate is 0.01%-0.02%.
To make the purposes, technical schemes and advantages of the present disclosure more clear, the present disclosure will be fur- ther illustrated below in combination with a specific example.
The pellet feed was prepared according to the raw material components listed in Table 1 below and its nutritional components were detected, specifically referring to Table 1.
Table 1: Composition and nutritional components of the prepa- red pellet feed
Pellet feed
Raw materials Content (%)
Highland barley 44
Composition of raw materials ves pas
LI
Composite premix
Calcium hydrogen phosphate0.55
Crude protein 13.71 + 0.03
Crude fat 2.67 + 0.01
Total phosphorus 0.404 + 0.028
Nutritional components
Hemicellulose 15.52 +0.25
Cellulose 4.04 + 0.34
Cmdesh p22 + 0. 10
Wherein, the vitamin contents of the prepared pellet feed are not lower than the recommended minimun requirements of vitamins listed in Table 2 below; and the contents of microelements conform to the recommended values of microelements listed in Table 3 be- low.
Table 2: Recommended amounts of vitamins in the feed should not be less than those specified in the table below
Item Nicotinic acid
Vitamin A [Vitamin D {Vitamin E [Vitamin C (mg/Kg) (TU./Kg) (IL/Kg) (IL/Kg) (mg/Kg) feremen sees 80000 1065 2700 4000
Table 3: Recommended amounts of microelements in the feed ee ee !
Requirement [0.05-0.1 [50-100 a pe
The pellet feed as provided in the above example is prepared by performing scientific modulation and processing on highland barley, corn, rape-cake and other resourceful raw materials accor- ding to the situation of agricultural and sideline product resour- ces in alpine pastoral areas, and at the same time matching diffe-
rent raw materials in certain proportions of energy and protein according to the nutriticnal requirements of the livestock, which makes full use of the resources of the feed, and the produced pel- let feed is easy to store and transport. The pellet feed is not affected by seasonal climate, ensuring the source of feed all- weather, getting rid of the situation of relying on the nature to raise livestock, solving the problems of inadequate forage pro- duction and lack of nutrition caused by the long winter in alpine pastoral areas, reducing the pressure of grazing in the grassland to some extent, and protecting the sustainable function of grass- land ecosystem.
Wherein, preparing the pellet feed through a pelleting pro- cess enables the relative proportion of various components in the feed fixed, thus effectively reducing the classification of feed components during feeding, shortening the feeding time of animals, preventing the livestock from being picky eaters in the feeding process, reducing the waste caused by the feed dust during fee- ding, and reducing the pollution to the feeding environment. At the same time, during the pelleting process, the components of the pellet feed are matured by the extrusion effect of the ring die roller, reducing the effect of the feed antinutritional factors.
Heating the feed in the pelleting process may also increase the amount of rumen bypass protein and gelatinized starch, thus incre- asing the conversion efficiency of energy and proteins in the feed for increasing the weight, which is beneficial to the digestion and absorption of animals, enhancing the digestibility of nu- trient, and improving the palatability of the feed. The feed for- mula may be optimized and combined so as to achieve the purposes of meeting the nutritional requirement of the livestock and redu- cing the cost, thereby providing technical basis for supplementary feeding or drylot feeding, semi-drylot feeding of yaks after gra- zing during cold season in alpine pastoral areas.
In addition, feeding the pellet feed can significantly impro- ve the growth performance of the livestock, and the effect of yak fattening and weight gain is obvious in production and promotion.
So the pellet feed is suitable for extended applications in alpine pastoral areas of Qinghai-Tibet Plateau, especially having a sig-
nificant and positive role in disaster resistance and livestock protection under extreme weather such as snow disaster.
This example also conducted a comparative experiment on a commercial pellet feed and the pellet feed provided in this example of the present disclosure: 1. Comparison on the feed intake of yaks after feeding the pellet feed
Feeding mode! Daily | Dry | Daily {| Dry | Daily | Fecal | Excre- | Appa- feed | matter | intake | matter | excre- | water | tion of | rent intake | intake |of con-{of con-{ tion | content |dry mat-|digesti- (g/day | (g/day |centrate centrate! (g/day | (%) ter bility for each|for each| feed | feed for each (g/day | (©) yak) | yak) | (g/day | (g/day | yak) for each for eachifor each yak) yak) | yak)
Commercial {| 5912 [5083.73] 3370 {2898.72{7165.56| 76.60 |1676.74| 67.02 pellet feed
Homemade | 6754 |5809.12| 3580 {3079.16{ 6110 7538 {1504.28 74.10 pellet feed
It can be found from the above table that: the dry matter in- take when feeding the homemade pellet feed was increased by 5.86% relative to the intake when feeding a commercial pellet feed; moreover, feeding the homemade pellet feed can also significantly improve the total feed intake of yaks, which was increased by 12.49% relative to the total feed intake of dry matter in the com- mercial pellet feed feeding group, and the daily feces amount of yaks was reduced by 11.46% relative to that in the mode of feeding the commercial pellet feed, and the apparent digestibility of the feed was increased by 10.56%. Feeding the homemade pellet feed can alleviate the environmental pollution caused by the feces excre- tion of the livestock greatly, and also significantly improve the digestibility and utilization rate of the feed. The homemade pel- let feed is superior to the commercial pellet feed in terms of the digestion and metabolism of the feed. 2. Experiment on the weight gain effect of yaks supplementary fed with the homemade pellet feed
Fee- No. | Initial | Final Daily Total | Daily dry | Total | Intake Daily | Concen- ding of weight | test weight | feed matter feed pf concen- | dry trated mode | vak | (Kg) weight | gain intake | intake to rate feed matter | feed to (Kg) (Kg) (g/day | (g/day gain (g/day for | intake | gain for for each ach vak) (g/day cach vak) for vak) each vak) 1 0.25 | 5300 18.23 eller 0.44 7.02
Peed 140 4819 19.28 11.17 125.5 16.08 2949
Hu 262.4 ode 324.4 7.03 3.75 ellen 2018 | 2878 | 0.684 | 6858 8.62
Bd 4 194.2 | 0.668 3563 3065 | 4.59 189.8 10.16
Note: The water content of the commercial pellet feed was 14.01%, and the water content of the homemade pellet feed was 13.99%; the feces water content of yaks supplementary fed with the commercial pellet feed was 76.60%, and the feces water content of yaks supplementary fed with the homemade pellet feed was 75.38%.
It can be found from the above table that: the daily weight gain of yaks fed with the homemade pellet feed was significantly higher than that in the commercial pellet feed group; while com- pared to feeding the commercial pellet feed, the total feed to gain in this feeding mode was reduced by 1.03 times, and the con- centrated feed to gain was reduced by 1.27 times, thus signifi- cantly improving the utilization rate of the feed. 3. Experiment on the body-size effect of yaks fed with the homemade pellet feed
9 . ‚ | Daily (Average I» Daily pres
Feeding cot Initial Final fest height | height Initial Final test length Average o. of yaks | height height - - length - length gain mode (CM) (CN) gain gain CM) length (CM) | gain (CM) em | em | © (CM)
Com- mercial pellet 3 96 105 0.089 113 147 0.337
Hil 2 116 167 120 0.105 134 0.868
Home- L > pellet feed 01 133 4 103 0.316 95 1.000
It can be found from the above table that: There were obvious changes in the body size of yaks fed with the homemade pellet feed. After feeding the homemade pellet feed, the daily height gain of the yak was 3.10 mm, and the daily length gain was 7.84 mm, significantly higher than those in the commercial pellet feed group.

Claims (5)

CONCLUSIESCONCLUSIONS 1. Korrelvoer voor het bijvoeren van yaks na begrazing, waarbij het korrelvoer, in gewichtsdelen, de volgende bestanddelen omvat: 30-40 delen maïs, 40-50 delen hooglandgerst, 15-20 delen koolzZaad- cake, 1-2 delen zout, 1-2 delen samengesteldepremix, 0,3-0,6 delen ureum en 0,3-0,6 delen calciumwaterstoffosfaat, waarbij het kor- relvoer wordt bereid door de bovenstaande componenten te mengen en vervolgens tot pellets te vormen.1. Granulated feed for supplementary feeding of yaks after grazing, the pelleted feed comprising, in parts by weight, the following ingredients: 30-40 parts maize, 40-50 parts highland barley, 15-20 parts cabbage seed cake, 1-2 parts salt, 1 -2 parts compound premix, 0.3-0.6 parts urea and 0.3-0.6 parts calcium hydrogen phosphate, the pelleted feed being prepared by mixing the above components and then forming into pellets. 2. Korrelvoer voor het bijvoeren van yaks na begrazing volgens conclusie 1, waarbij de samengestelde premix een in de handel ver- krijgbare samengestelde premix is voor het mesten van yaks die mi- cro-elementen en vitaminen bevat.A pellet feed for supplementary feeding of yaks after grazing according to claim 1, wherein the compound premix is a commercially available compound premix for fattening yaks containing microelements and vitamins. 3. Korrelvoer voor het bijvoeren van yaks na begrazing volgens conclusie 1, waarbij de deeltjesgrootte van het afgewerkte korrel- voer 10 mm-20 mm is.The pellet feed for supplementary feeding of yaks after grazing according to claim 1, wherein the particle size of the finished pellet feed is 10mm-20mm. 4. Werkwijze voor het bereiden van het korrelvoer voor het bijvoe- ren van yaks na begrazing volgens een van de conclusies 1-3, waar- bij deze de volgende stappen omvat: S101, volgens de vooraf gedefinieerde gewichtsdelen, respectieve- lijk het wegen van maïs, hooglandgerst en raapkoek, respectieve- lijk het vermalen tot deeltjes van 80-100 mesh en het vervolgens met elkaar mengen om de eerste voorraad te verkrijgen; S102, volgens de vooraf gedefinieerde gewichtsdelen, respectieve- lijk het wegen van zout, samengestelde premix, ureum en calciumwa- terstoffosfaat en het mengen met elkaar om de tweede voorraad te verkrijgen; 5103, het toevoegen van de tweede voorraad aan de eerste voorraad en het mengen met roeren om een mengsel te verkrijgen; S104, het toevoeren van het mengsel aan een pelletiseermachine voor pelletisering en het vervolgens afkoelen om het korrelvoer te verkrijgen.The method for preparing the granular feed for supplementing yaks after grazing according to any one of claims 1 to 3, comprising the steps of: S101, according to the predefined parts by weight, respectively weighing the maize, highland barley and rapeseed, respectively ground into 80-100 mesh particles and then mixed together to obtain the first stock; S102, according to the predefined parts by weight, respectively, weighing salt, compound premix, urea and calcium hydrogen phosphate and mixing with each other to obtain the second batch; 5103, adding the second stock to the first stock and mixing with stirring to obtain a mixture; S104, feeding the mixture to a pelletizing machine for pelletizing and then cooling to obtain the pellet feed. 5. Werkwijze voor het bereiden van het korrelvoer voor het bijvoe- ren van yaks na begrazing volgens conclusie 4, waarbij in stap S101 de nauwkeurigheid van de weeginrichting voor het wegen van maïs, hooglandgerst en koolzaad 0,13 is; en in stap S102 de nauw- keurigheid van het weegapparaat voor het wegen van zout, samenge- stelde premix, ureum en calciumwaterstoffosfaat 0,01% -0,02% is.The method of preparing the grain feed for supplementing yaks after grazing according to claim 4, wherein in step S101 the accuracy of the weighing device for weighing maize, upland barley and rapeseed is 0.13; and in step S102, the accuracy of the weighing apparatus for weighing salt, compound premix, urea and calcium hydrogen phosphate is 0.01% - 0.02%.
NL2029762A 2021-11-15 2021-11-15 Pellet feed for supplementary feeding yaks after grazing and preparation method thereof NL2029762B1 (en)

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