CN105961853B - A kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle - Google Patents
A kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle Download PDFInfo
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Abstract
The invention discloses a kind of nutrition lap bricks rich in Zn-ef ficiency suitable for west area Grazing Cattle, suppress to obtain by following raw material：Salt, mountain flour, the zinc sulfate that mass ratio containing zinc is 34.5%, the copper sulphate that cupric mass ratio is 25%, mass ratio containing manganese be 31.8% manganese sulfate, containing iodine quality than the potassium iodide for 2%, mass ratio containing selenium be 1% sodium selenite, the cobalt chloride that mass ratio containing cobalt is 1%, the ferrous sulfate that iron content mass ratio is 30%.Beneficial effects of the present invention are：The nutrition lap brick; it is to lack for Zn content in west area Grazing Cattle body zinc requirement and soil, herbage; the inhibition to zinc-iron alloy solution and antagonism in conjunction with coherent elements such as copper, calcium; the prepared special nutrition licking brick that Zn-ef ficiency is supplemented rich in zinc, suitable for west area Grazing Cattle; have effects that improve Grazing Cattle production performance, increase beef cattle weight, prevent ox allotriophagy, there is preferable control effect to west area Grazing Cattle zinc dificiency.
Description
Technical field
The present invention relates to livestock feed technical fields, and in particular to a kind of to be rich in zinc suitable for west area Grazing Cattle
The nutrition lap brick of element.
Background technology
Zinc does not exist in nature with metal form, is present in a variety of ores with stable state compound form
In.The content of ZINC IN SOIL and parent rock type, the content of organic matter, pH value and soil texture are closely related, in the range of 10-
300 μ g/g, average value are 50-100 μ g/g.Since floristics difference Zn content has larger difference, general bean
Zn content is higher, and vegetable plants Zn content is relatively low.From the point of view of world wide, whether developing country or developed country,
It all there is serious zinc-deficiency in soil or plant, wherein Holland, Norway, Finland and Greece reported once because in herbage
Zn content deficiency causes cattle and sheep that more serious zinc-deficiency disease occurs；China major part province belongs to poor zinc or zinc-deficiency area, and Xinjiang has
Nearly 80% soil zinc content is insufficient, and the Zinc content of soil on the ground such as Gansu, Sichuan is 10-100 μ g/g, belongs to zinc-deficiency area；The Inner Mongol
Sheep alopecia of season prevalence at the beginning of last month of spring in winter of the most area in the area such as Zhelimu League, Dongsheng City and Shanxi Province is scarce
Caused by zinc.
Zn content deficiency is the main reason for leading to Grazing Cattle zinc dificiency in soil and fodder grass.It is generally believed that soil
Zn content can cause ox to fall ill less than in 30 μ g/g, fodder grass less than 20 μ g/g.Most plant-eating animal zinc requirements
Ranging from 40-100 μ g/g, Zn content is 0.8-1.2 μ g/L in cow's serum, and Zn content is 1-1.2 μ g/L in blood plasma.The minimum zinc of ox
Requirement changes with age, physiological status, environmental factor and health condition.Ox is dry with every kilogram of feed to the requirement of zinc
Substance is advisable containing 40mg.The growth needs of calf cannot be met when if zinc content being less than 8-9mg/kg in feed；If low
It is difficult to maintain normal plasma zinc concentration when 10-14mg/kg.The normal serum Zn content of ox is 0.8-1.2 μ g/mL.One
As think, cow's serum Zn content 0.6-1.0 μ g/mL be it is slight lack, 0.4-0.6 μ g/mL be there is a serious shortage of.As age ox year increases
The big and speed of growth is slack-off, and zinc absorption reduces.The zinc of Adult Bovine about 67% is absorbed in abomasum, and 82% in fecaluria through being discharged.
Young ox needs more zinc since fast-growth needs to lay in a large amount of protein, than ox old or that growth is slow；Pregnancy and
Lactation stress also influence requirement of the ox to zinc, and the higher cow in milk of milk yield needs zinc amount to increase；High dietary calcium influences zinc simultaneously
Absorption, zinc requirement is 45 μ g/g when calcic 0.3% in daily ration, often increases by 0.1% calcium and needs 16 μ g/g of zinc supplementation.Copper and calcium are to zinc
Absorption have very strong inhibiting effect, the elements such as iron, manganese, cadmium, molybdenum and vitamin D and zinc that there are antagonism, too high levels
Also the absorption for influencing zinc, induces zinc deficiency.Phytic acid content is excessively high in feed, and the insoluble and difficult compound absorbed is formed with zinc,
Ox reduces the utilization rate of zinc nutrition and secondary zinc deficiency occurs.
Zinc mainly exists in the form of zinc ion in ox body, is the constituent of internal more than 100 kinds of enzymes, such as carbonic anhydride
Enzyme, alkaline phosphatase etc., while being also the activator of many kinds of metalloenzyme, participate in animal body protein, DNA, RNA and other objects
The synthesis and metabolism of matter.Since zinc is primarily present in protein and various metalloenzyme, intracellular Zn content is directly adjusted
The activity of these zinc enzymes, the metabolism of the metabolic process of various substances, especially protein, sugar and fat is also just controlled
Journey participates in the synthesis and degradation of nucleic acid, participates in the synthesis of vitamin A reductase in liver and retina；Zinc is close with skeleton development
Cut phase is closed；The activity that ox tethelin can be strengthened, adjusts the metaboilic level of androgen, directly participate in sperm generation, at
Ripe, activation and capacitation process.It can be seen that when ox body zinc deficiency, body, cellular immune function are low, T, bone-marrow-derived lymphocyte number
Amount greatly reduces, and increases the neurological susceptibility of disease；Due to zinc enzyme and the activity of zinc enzyme is needed to reduce, the normal generation of interference body
Thank, growth and development, endocrine, the physiological loadings such as immune；Vitamin A content is reduced in blood, leads to endogenous vitamin A
Lack the yctalopia for causing ox；Serum and tissue activity change of Alkaline phosphatase and Metallothionein Content reduce, rib cage Zn content
It is remarkably decreased, interferes Chondrogenesis and prevents normal calcification process；Lead to male obstinacy gland maturity time retardation, sexual gland atrophy
And fibrosis, directly affect spermiogenesis tail, development and combination；Female bovine oocyte maturation is obstructed, and heat is irregular, by
Pregnant rate reduces, embryo's congenital abnormality etc.；Depilation and parakeratosis of skin occur for calf, and dermatitis occurs for severe patient.
Zinc nutrition is insufficient, shows as lassitude in early days, and feed intake is reduced, and causes ox slow-growing therewith or stagnates, is raw
Produce that performance declines, efficiency of feed utilization is low, parakeratosis of skin, skeleton development exception and reproductive capability obstacle etc..Keratoderma is not
Occur mainly in head nares, scrotum and femoribus internus entirely；Parakeratosis also occurs for lactation cow teats, and lactation amount is reduced,
Bull calf bull testis impaired development etc..In farm or the large quantities of morbidities of certain area, but there is no infectiousness.
West area Grazing Cattle, due to the low zinc of soil, herbage variety is single, quality is bad, nutritional imbalance, and Zn content is not
Foot or ratio are improper, and feeding management is extensive in addition, cause the zinc nutrition that ox body absorbs that cannot meet its growth and development and productivity
The needs of energy, primosome intracellular metabolite is disorderly and falls ill, and severe patient causes large quantities of death.After ox zinc supplementation, ox feed intake and growth
Development be improved significantly, the growth of livestock, hair color have significant change.Therefore, zinc supplementation is most effective way in feed when zinc deficiency
Diameter.
In recent years, animal husbandry worker has carried out a large amount of related trace elements and licks brick experimental study, achieve it is certain at
Fruit.Brick technology is licked there are many having passed through to disclose.As Chinese patent 200810003630.9 provides one kind for treating animal battalion
It supports metabolic disease and licks brick, which contains 250~300g of molasses in per kilogram licks brick, 100~150g of urea, salt 200~
250g, 50~70g of quick lime, 70~75g of wheat bran, 200~250g of bentonite, 125~150g of calcium monohydrogen phosphate, zinc sulfate 5.2~
7.145g, 2~3g of copper sulphate, 0.7~0.815g of potassium iodide, 0.7~0.87g of sodium selenite, 0.5~0.65g of cobalt chloride, dimension life
Plain 50g, expelling parasite digestive powder 100g.Chinese patent 200610146615.0 provides a kind of ruminant compounding nutrition mineral
Brick and its preparation process are licked, per kilogram, which is licked, contains 219~328g of calcium monohydrogen phosphate, 2.5~3.75g of Zn-ef ficiency, copper in brick
0.75~1.125g, 0.025~0.038g of iodine, 0.02~0.03g of selenium element, 0.01~0.015g of cobalt element, salt
200~300g of 250g, urea 150g, 70~100g of curing agent and binder.The patent of invention be ruminated for Ningxia, China it is dynamic
Object and design.Chinese patent 200510088027.1 provides a kind of nutrient-balance composite licking brick for cattle and sheep and preparation process, often
Kilogram lick brick sulfur acid 0.15~0.3g of zinc, 0.1~0.2g of copper sulphate, 0.2~0.3g of manganese sulfate, sodium selenite 0.01~
0.02g, 0.01~0.3g of potassium iodide, 0.03~0.06g of cobalt chloride, 0.1~0.3g of magnesia, nano zine oxide and copper sulphate are mixed
Close 0.02~0.04 g, 30~150g of sodium sulphate, 40~80g of calcium monohydrogen phosphate, 0.2~1g of nicotinate chromium, 50~200g of carrier, salt
150~300g, 200~300g of curing agent, 20~80g of molasses, 50~200g of urea, 20~80g of expanded corn powder, physiological regulating control
20~80g of agent, 10~60g of vitamin premix.Chinese patent 200510088028.1 provides a kind of mineral substance composite ox
Sheep licks brick and its preparation process, and per kilogram licks brick sulfur acid 0.15~0.3g of ferrous iron, 0.15~0.3g of zinc sulfate, copper sulphate 0.1
~0.2g, 0.2~0.3g of manganese sulfate, 0.01~0.02g of sodium selenite, 0.05~0.3g of potassium iodide, cobalt chloride 0.03~
0.08g, 0.1~0.3g of magnesia, nano zine oxide and cupric sulphate mixture 0.02~0.03g, 6~10g of nicotinate chromium, sodium sulphate
30~150g, 40~100g of calcium monohydrogen phosphate, 200~400g of salt, 200~400g of curing agent, 50~200g of carrier, molasses 30~
70g；Minerals and carrier are stirred and evenly mixed, salt and red glue soil stirring is added, added molasses and stir evenly rear compression moulding i.e.
.The above invention does not all fully consider the special eco-physiognomy in west area, herbage, Trace Elements in Soil content, causes micro-
Secondary element blindly supplements or imbalance.
Invention content
The purpose of the present invention provides one kind and is herded suitable for west area aiming at above-mentioned defect in the prior art
The nutrition lap brick rich in Zn-ef ficiency of ox.
To achieve the goals above, technical solution provided by the invention is：A kind of richness suitable for west area Grazing Cattle
Nutrition lap brick containing Zn-ef ficiency is suppressed by following raw material in parts by weight：700-850 parts of salt, mountain flour
100-120 parts, 25-50 parts of the zinc sulfate that mass ratio containing zinc is 34.5%, 5-15 parts of the copper sulphate that cupric mass ratio is 25% contains manganese
Mass ratio be 31.8% 5-10 part of manganese sulfate, containing iodine quality than 4-10 parts of the potassium iodide for 2%, mass ratio containing selenium for 1% sub- selenium
Sour sodium 1-5 parts, 2-5 parts of the cobalt chloride that mass ratio containing cobalt is 1%, 10-40 parts of the ferrous sulfate that iron content mass ratio is 30%.
Further, above-mentioned a kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle, be by by
It is suppressed according to the following raw material of parts by weight meter：800 parts of salt, 110 parts of mountain flour, the zinc sulfate that mass ratio containing zinc is 34.5%
30 parts, 10 parts of the copper sulphate that cupric mass ratio is 25%, 8 parts of the manganese sulfate that mass ratio containing manganese is 31.8%, ratio containing iodine quality is 2%
6 parts of potassium iodide, mass ratio containing selenium be 1% 3 parts of sodium selenite, mass ratio containing cobalt be 1% 3 parts of cobalt chloride, iron content mass ratio
For 30% 30 parts of ferrous sulfate.
Further, above-mentioned a kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle, the battalion
It supports and licks the shape of brick for cylinder, specification is every piece of weight 5kg.
Beneficial effects of the present invention are：It is provided by the invention it is a kind of suitable for west area Grazing Cattle rich in Zn-ef ficiency
Nutrition lap brick is to lack for Zn content in west area Grazing Cattle body zinc requirement and soil, herbage, in conjunction with copper, calcium etc.
Inhibition and antagonism of the coherent element to zinc-iron alloy solution, prepared is rich in zinc, is suitable for west area Grazing Cattle（Finger is herded
Yak, beef cattle, similarly hereinafter）Supplement the special nutrition licking brick of Zn-ef ficiency, have improve Grazing Cattle production performance, increase beef cattle weight,
The effect of preventing ox allotriophagy has preferable control effect to west area Grazing Cattle zinc dificiency.
Specific implementation mode
Embodiment 1：
A kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle is to suppress to obtain by following raw material
's：Salt 700kg, mountain flour 100kg, the zinc sulfate 25kg that mass ratio containing zinc is 34.5%, the copper sulphate that cupric mass ratio is 25%
5kg, mass ratio containing manganese be 31.8% manganese sulfate 5kg, containing iodine quality than the potassium iodide 4kg for 2%, mass ratio containing selenium be 1% Asia
Sodium selenate 1kg, the cobalt chloride 2kg that mass ratio containing cobalt is 1%, the ferrous sulfate 10kg that iron content mass ratio is 30%.
The shape of nutrition lap brick is cylinder, and specification is every piece of weight 5kg.
Embodiment 2：
A kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle is to suppress to obtain by following raw material
's：Salt 850kg, mountain flour 120kg, the zinc sulfate 50kg that mass ratio containing zinc is 34.5%, the copper sulphate that cupric mass ratio is 25%
15kg, the manganese sulfate 10kg that mass ratio containing manganese is 31.8%, containing iodine quality than the potassium iodide 10kg for 2%, mass ratio containing selenium is 1%
Sodium selenite 5kg, mass ratio containing cobalt be 1% cobalt chloride 5kg, iron content mass ratio be 30% ferrous sulfate 40kg.
The shape of nutrition lap brick is cylinder, and specification is every piece of weight 5kg.
Embodiment 3：
A kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle is to suppress to obtain by following raw material
's：Salt 800kg, mountain flour 110kg, the zinc sulfate 40kg that mass ratio containing zinc is 34.5%, the copper sulphate that cupric mass ratio is 25%
10kg, the manganese sulfate 5kg that mass ratio containing manganese is 31.8%, containing iodine quality than the potassium iodide 5kg for 2%, mass ratio containing selenium is 1%
Sodium selenite 2kg, the cobalt chloride 2kg that mass ratio containing cobalt is 1%, the ferrous sulfate 26kg that iron content mass ratio is 30%.
The shape of nutrition lap brick is cylinder, and specification is every piece of weight 5kg.
Embodiment 4：
The preparation of nutrition lap brick used in Application Example：
Suitable for the nutrition lap brick rich in Zn-ef ficiency of west area Grazing Cattle, suppress to obtain by following raw material：Food
Salt 800kg, mountain flour 110kg, the zinc sulfate 30kg that mass ratio containing zinc is 34.5%, the copper sulphate 10kg that cupric mass ratio is 25%,
Mass ratio containing manganese be 31.8% manganese sulfate 8kg, containing iodine quality than the potassium iodide 6kg for 2%, mass ratio containing selenium be 1% selenous acid
Sodium 3kg, the cobalt chloride 3kg that mass ratio containing cobalt is 1%, the ferrous sulfate 30kg that iron content mass ratio is 30%.
The present invention to the selection for licking in brick trace element amount additive amount be detection Gansu, 58 portions of Qinghai fodder grass, 15 parts
In water sample and 200 bovine bloods after zinc, copper, selenium and other trace elements, local fodder grass and water sample, milk, ox blood have been fully considered
Micro- background values in liquid finally determines after constantly adjusting formula rate using feeding experiment, can both reduce micro member
Element addition cost can prevent the excessive pollution to environment caused by blindness is added again, while can preferably adjust the mineral in ox body
Constituent content ratio enables growth and development to obtain maximum performance, test result significant effect.
Experimental design：
1 materials and methods：
1.1 lick brick for examination zinc-rich ox trace element：
According to above-mentioned component and formulation weight, using salt as carrier, mixing, compacting are made zinc-rich trace element and lick brick.It licks
Brick is cylindrical, every piece of weight 5kg.
1.2 test sites and for try cows：
Selection Gansu Province Hong Shan animal husbandry Co., Ltd is by age randomly divided into test group and control to 60 Beef Cattle under All Year Grazing
Group, every group 30, the ages in days of 2 groups of beef cattles, weight and health status are close.The cows eat the phenomenon that soil and foreign matter, incidence
Up to 25%, Zn content is less than normal level in blood after testing.It is as shown in table 1 for examination ox basic condition.
Table 1
。
1.3 experimental design：
Experiment is designed using single-factor, is chosen 60 Beef Cattle under All Year Grazing of experiment, is randomly divided into two groups.
1.4 test method：
Test ox is using pasture Continous grazing, feeding, and evening loop house, supplementary feeding zinc-rich trace element licks brick, every 2 average
Ox 1 block of zinc-rich trace element of placement is licked brick and is arbitrarily licked, free water, tests front and back statistics cow's serum trace element change, body
The incidence of the metabolism of trace elements such as variation, zinc disease again.Control group ox feed mode is identical as test group, and supplementary feeding does not lick brick.Examination
Test the phase 60 days.
1.5 sample analysis：
With the trace element of the samples such as Jena, Germany atomic absorption spectrophotometer analysis herbage, bovine blood.
1.6 data processing
Statistical disposition is carried out to all data using spss10.0.
2 results and analysis：
2.1 zinc-rich trace elements lick influence of the brick to Grazing Cattle Trace Elements in Blood：
Before and after experiment, the trace elements such as test ox Zn in serum are significantly improved.Before experiment, detect blood within 30 days, 60 days
The elements such as Zn, Mn, Cu, Se in clear.Zinc-rich licks influence of the brick to microelement level in cow's serum, and the results are shown in Table 2, unit
For μ g/ml.
Table 2
。
Note：* indicate test group compared with the control group compared with significant difference (P<0.05)；* indicates test group compared with the control group
Poor heteropolar significantly (P<0.01).
2.2 zinc-rich trace elements lick influence of the brick to ox weight：
During experiment, under same rearing conditions, 0.77 kilogram of test group average daily gain, than 0.61 kilogram of control group
More 0.16 kilogram of weightenings.Zinc-rich licks influence of the brick to finished cattle daily gain, and the results are shown in Table 3, units/kg.
Table 3
。
Note：* indicate test group compared with the control group compared with significant difference (P<0.05).
2.3 zinc-rich trace elements lick influence of the brick to ox allotriophagy：
The incidence of ox allotriophagy is down to 7% by 25%.Zinc-rich trace element licks influence result of the brick to Grazing Cattle allotriophagy
As shown in table 4.
Table 4
。
3 conclusions and discussion：
This test result shows that zinc-rich trace element licks brick and can significantly improve the trace elements such as Grazing Cattle Zn in serum and contains
Amount, under same rearing conditions, test group ox growth level improves, and weightening is apparent, since the general level of the health improves, hair color hair
Bright, growth is accelerated, and allotriophagy incidence significantly reduces.It can be seen that it is Grazing Cattle growth and development stage that zinc-rich trace element, which licks brick,
Between a kind of good auxiliary fodder additive.
Safety evaluatio of the present invention：
Acute toxicity test：The safety that brick is licked for evaluation calf trace element, by 8 week old age weight（18.2±3.8）g
Kunming kind healthy mice 70（Half male and half female）, it is randomly divided into 7 groups, 1 control group, 6 dose drug groups.It will be above-mentioned micro
Element licks brick crushing, crosses 120 mesh sieve, and the dosage for pressing 5g/kg, 10g/kg, 20g/kg, 40g/kg, 60g/kg, 80g/kg respectively fills
Stomach is observed 7 days, and dead mouse number is recorded, and it is 68.3g/kg to acquire LD50, and 95% credibility interval is 17.2~70.5g/kg.
Long term toxicity test：The mouse of above-mentioned equal conditions 70, every group 10, respectively with the 1/9 of LD50,1/8,1/7,
1/6,1/5,1/4 dosage is added in mouse daily ration, and sets a control group, is fed 3 months.
As a result：
（1）In 10d, small white mouse weightening is negatively correlated with additive amount；
（2）Micronutrient levels is proportionate with additive capacity in liver and blood sample；
（3）When testing 90 d, control group and test group mouse are without clearly visible pathological change.Microscopically observation：
The dosage group mouse liver cell of 1/4 LD50 forms vacuole in granular degeneration, karyopyknosis, necrosis, part plasmolysis, carefully
Karyon proliferation is apparent, central vein expansion.Glomerulus is congested, expands, renal tubule luminal stenosis or closure, epithelial cell swelling,
Wall of the lumen cell degeneration.
Conclusion：Zinc-rich trace element, which licks brick, can significantly improve Grazing Cattle growth and development, and handling is herded micro- in cow's serum
Content, improve ox production performance；The zinc-rich trace element of suitable dosage licks brick has facilitation to the growth and development of small white mouse,
The zinc-rich trace element of high dose, which licks brick, then influences its growth and development, and histocyte can be caused to have slight damage.
Mouse toxicity experiments have shown that, zinc-rich trace element lick brick dosage be less than 17.08g/kg when, the mouse group in 90 d
It knits structure and does not find apparent pathological change；LD50 is 68.3g/kg, and 95% credibility interval is 17.2~70.5g/kg.
The above experiment explanation, it is safe to lick brick using zinc-rich trace element in herding cattle breeding, is had no toxic side effect.This
The zinc-rich trace element of invention, which licks brick, can effectively improve the Grazing Cattle general level of the health, put on weight, and allotriophagy incidence is reduced.It improves
Internal micronutrient levels improves production performance.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle, which is characterized in that be by according to weight
What the following raw material of part meter was suppressed：700-850 parts of salt, 100-120 parts of mountain flour, the sulfuric acid that mass ratio containing zinc is 34.5%
25-50 parts of zinc, 5-15 parts of the copper sulphate that cupric mass ratio is 25%, 5-10 parts of the manganese sulfate that mass ratio containing manganese is 31.8% contain iodine
4-10 parts of the potassium iodide that mass ratio is 2%, 1-5 parts of the sodium selenite that mass ratio containing selenium is 1%, the cobalt chloride that mass ratio containing cobalt is 1%
2-5 parts, 10-40 parts of the ferrous sulfate that iron content mass ratio is 30%.
2. a kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle according to claim 1, special
Sign is, is suppressed by following raw material in parts by weight：800 parts of salt, 110 parts of mountain flour, mass ratio containing zinc are
30 parts of 34.5% zinc sulfate, 10 parts of the copper sulphate that cupric mass ratio is 25%, 8 parts of the manganese sulfate that mass ratio containing manganese is 31.8% contain
Iodine quality is than 6 parts of the potassium iodide for 2%, 3 parts of the sodium selenite that mass ratio containing selenium is 1%, the cobalt chloride 3 that mass ratio containing cobalt is 1%
Part, 30 parts of the ferrous sulfate that iron content mass ratio is 30%.
3. a kind of nutrition lap brick rich in Zn-ef ficiency suitable for west area Grazing Cattle according to claim 1 or 2,
It is characterized in that, the shape of the nutrition lap brick is cylinder.
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