Price of pork of current market attention stops drop spring back while, was full of likewise to the pork of quality on the safe side expect. Qian Yongzhong of researcher of research center of standard of quality of produce of agricultural country ministry expresses, our country is organized every year begin routine of safety of quality of national agriculture products to monitor, the illegal accretion such as the medicaments remain that exists to the likelihood in pork and lean lean essence undertakes detecting.
The result makes clear, pork quality safety monitored percent of pass 2016 for 99.5% , safety of quality of pork of before 2017 3 quarters monitors percent of pass for 99.8% . On the whole, security of pork product quality has safeguard, consumer can be at ease consumption. The problem of pork quality safety that cares with respect to consumer, the expert of live pig breed aquatics and aspect of security of feed animal drug gave out answer of a few crucial interrogative.
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Doubt 1: Why to raise a pig to want to feed feed and feed additive now?
Chinese agriculture college teachs Qiao Shiyan to express, feed is live pig satiate the key that has taken. Feed and feed additive are contemporary the corporeal foundation of the course of study that raise a pig and technical safeguard, it is the nutrition of compensatory live pig, necessary step that assures product quality, also be the technology that international popularizes generally, the our country and United States, Germany, Denmark breed aquatics that raises pig big country technology, feed is used, the circumstance such as safety of quantity of tone of weight of birth cycle, live pig, flesh, product agrees basically, accord with international standard and requirement of foreign trade criterion.
This and we everyday healthy food count for much -- nutrition of compensatory live pig, assure product quality, feed and feed additive are corporeal foundation and technical key, the pig of the whole world people so raise.
Feed additive is used in feed the quantity is very few but effect is distinct, include nutritive additive, general additive and medicated premix 3 kinds big. Traditional onefold feed can solve live pig only " satiate " problem, and the amino acid that nutritive additive basically is feed class, vitamin, it is to solve live pig " had eaten " problem.
Right amount medicated premix is added in feed, can prevent disease of the common sex that charges live pig, much hair sex effectively, raise level to carry out through be in stop medical period, can estimate the medical damage in pork control to be in limits of pair of human body hurtless inside. Join in feed fight the general additive such as oxidation, pledge with the accretion of food industry mostly general, attribute provision level, no matter grow to live pig,still be to pork character, do not have a harm.
National explicit order prohibits adding benzene barbitone to wait in feed composed and hypnotic, combat faint from fear kind medicaments. Move less through adding sleeping pill to make a pig much sleep, growing fertilizer quickly is to do not have necessary, the amount of activity of live pig itself that raises because of the circle is very few, do not need to use tranquillizer.
Preparation of urea, arsenic and copper belong to the material that allows to be added in feed, but have corresponding restricted regulation, do not use at will.
Urea is chemical fertilizer of a kind of tall nitrogen, if a few at the ruminant such as ox, sheep using,have effect, can by ruminant rumen microbial place excretive Niao is enzymatic decompose, be absorbed to digest thereby by synthetic protein. The pig does not have rumen at all, the nitrogen in urea is used hard, dosage can cause the kill with poison in live pig to die even greatly too.
To adding cupreous effect, only right amount ground adds what cupreous ability promotes a pig to grow in feed, allow right amount additive specific standard adds a quantity to cannot exceed 200 grams for preparation of the copper in every 1000 kilograms of feed.
In addition, often hearsay says to join inorganic arsenic in pig feed, the pig can appear the skin ruddy, hair is bright, this kind of view made the mistake of commonsensible sex.
What join in feed is organic arsenic, is not inorganic arsenic. Organic arsenic to raising feed utilization rate, enhance disease-resistant ability to having apparent effect. Current, outside dividing China, the home also approves a lot of countries such as the United States to regard feed as additive its. Organic arsenic is met from eduction of excrement and urine, the remain in the airframe organization in live pig is extremely low.
And inorganic arsenic is virulent material, common weighs arsenic, can cause live pig death, do not allow to be added in feed.
Qiao Shiyan says, some kind of material whether make additive, the orgnaization that must be in charge of a branch to appoint via agriculture of the State Council undertakes raise feeds an experiment detecting mixing, to its as a result by pasturage expert basis security is undertaken assessment, evaluate the ability after passing to be included " catalog of feed additive breed " . Generally speaking, feed additive won't exceed 4% in the proportion in feed, proportion is high, raise nurturance rises necessarily originally, right breed aquatics door for not be to one's profit.
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Doubt 2: How does the pig grow 6 months to give column now, can you still grow 200~300 jin?
Wang Lixian of researcher of institute of vet of pasturage of Beijing of courtyard of Chinese farming division says, science raises a pig to be able to be protected already also can maintain a volume character. Current, the breed aquatics with normal live pig is periodic and general for 150~180 day. Live pig grows the main reason with short cycle of fast, fatten is " 3 good " , namely pig good, makings the circle is good, good, namely live pig breed safety of nutrition of good, feed, breed environmental improvement.
Commodity hog production basically is Du Luo gram, long mix in vain become known pig breed of 3 yuan of cross, it is very normal that the live pig of these high grade breeds controls a column 160 days, the pig of nicer variety gives abroad column cycle is shorter. And the pig fatten time that uses local breed to undertake cross is relatively longer, breed cycle on average to be 180~200 day.
Live pig gives the different fatten level before column, of feed cast feed a quantity to differ, always cast feed a quantity to be controlled in 300 kilograms. If do not feed feed to feed the traditional pig feed such as food grains other than wheat and rice, greenfeed for pigs only, the growth of the pig is periodic increase a month at least. The development application of contemporary feed and feed additive raised feed to change greatly rate, reduced live pig to produce medium raise to raise cost, achieve favorable socioeconomy beneficial result to raise pig employment, laid solid scientific foundation.
According to calculating, as the application of contemporary feed science and technology, our country formula feed is changed rate is apparent rise, to the science and technology of stock raising contributive rate already exceeded 40% . Formula feed changes the pig rate by 4: 1 rise 3: 1. Raised the time that a pig needs one year in the past, 6 months can give column now, the feed with this and balanced nutrition and breeding a technology to progress is not divided.
Wang Lixian expresses, what change live pig breed aquatics to be a feature with dimensions is contemporary the industry that raise a pig is growing quickly at present, breed concept and level of management to promote ceaselessly. Breed an environment through improvement, dung of executive cultivate birds corrupt harmless change processing, solved the problem such as major epidemic disease and antibiotic remain stage by stage, the growth of the pig is periodic shorten gradually, every pig weight is controlled in 200 jins commonly.
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Doubt 3: Contemporary raise a pig can need not animal drug?
Chinese animal medicine tastes censorial institute director scholarship roc expresses, the animal also should hit vaccine to prevent disease, fell ill to need to have treatment with medicaments. Animal drug is to point to use purposeful perhaps adjustment at disease of precaution, cure, diagnostic animal the material that animal physiology function provides dosage of action utility, usage.
Different in breed level is faced with live pig risk of epidemic disease happening, although raise ambient conditions of management, improvement breed aquatics to be able to prevent a disease through strengthening, reduce swinery incidence of a disease, but because outside ambient is a few more long-standing,cause disease microbial, once cause,come on, it is inevitable that necessary cure uses drug, although be in the United States, European Union country that breeds a technology to develop and area,also be such.
Our country is the nation with the largest amount of the amount of livestock on hand on the world, miniature hoggery still has the proportion that comparative in, miniature hoggery is put in the circumstance such as difference of condition of weakness of biology safety precaution, epidemic prevention in. Accordingly, inside a longer henceforth period, animal epidemic disease is prevented control pressure still very big, use animal drug remains pilot of live pig epidemic disease one of main measures.
According to " law of animal epidemic prevention " and " animal drug regulation " , relevant provision must be abided by with medicine in process of animal breed aquatics.
It is to should use what the country approves, the animal drug that quality accords with a requirement, must not use ban the medicine that use animal or compound; 2 it is to must not make choose and employ persons uses drug, also must not be in feed or hormone is used in watering kind medicaments; 3 be by hold square medicine of good of use animal of prescription of vet of course of study; 4 it is strict the animal variety that provides according to animal drug operation instruction handbook, get used to the content such as dosage of disease, usage to use animal drug, carry out strictly stop medical period regulation; 5 it is a farm / door the record using drug that should establish a standard.
Scholarship roc expresses, our country never has approved hormone kind medicaments is used at animal hurried to grow, the hormone that already approved kind medicaments basically is used at treating stud stock breed and obstetric disease, the regulation of this and European Union is consistent. Up to now, agricultural country ministry approved a variety of 10 antibiotic such as terramycin to be able to be used as medicated premix only, set dosage of use animal variety, usage strictly, stop medical period to wait, stipulate content and international standard conform basically.
