張 潔,史東吉,王召鋒,侯扶江
(草地農(nóng)業(yè)生態(tài)系統(tǒng)國(guó)家重點(diǎn)實(shí)驗(yàn)室,蘭州大學(xué)草地農(nóng)業(yè)科技學(xué)院,甘肅 蘭州 730020)
動(dòng)物生產(chǎn)層
我國(guó)牛奶安全生產(chǎn)現(xiàn)狀及對(duì)策
張 潔,史東吉,王召鋒,侯扶江
(草地農(nóng)業(yè)生態(tài)系統(tǒng)國(guó)家重點(diǎn)實(shí)驗(yàn)室,蘭州大學(xué)草地農(nóng)業(yè)科技學(xué)院,甘肅 蘭州 730020)
近15年來(lái),我國(guó)牛奶總產(chǎn)量和人均占有量有兩個(gè)變化階段:2000-2007年為快速增長(zhǎng)期,年均增幅分別達(dá)22.64%和21.97%;2008年“三聚氰胺”奶粉事件至今是緩慢增長(zhǎng)期,年均增幅僅分別為0.72%和0.49%;目前較2000年分別增加了4.35和4.11倍,但牛奶產(chǎn)量只有美國(guó)的1/3、印度的1/2,人均牛奶占有量不到美國(guó)的1/10、印度的1/2。我國(guó)城鄉(xiāng)居民人均乳品消費(fèi)量均隨牛奶產(chǎn)量和乳品進(jìn)口量增加呈線性上升,年均增幅分別為5.35%和15.77%。國(guó)內(nèi)牛奶產(chǎn)量顯著影響鄉(xiāng)村居民乳品消費(fèi),乳制品進(jìn)口量對(duì)城鄉(xiāng)居民消費(fèi)均有顯著作用。比較分析國(guó)內(nèi)外經(jīng)驗(yàn)與教訓(xùn),我國(guó)牛奶生產(chǎn)體系要加快牧草種植-奶牛養(yǎng)殖-牛奶加工-奶品銷售的縱向的系統(tǒng)耦合,同時(shí)加強(qiáng)諸多生產(chǎn)單位通過(guò)契約的橫向的系統(tǒng)耦合;根據(jù)草地農(nóng)業(yè)的理論,建立從水土保持到餐桌的乳品生產(chǎn)監(jiān)管保障體系,改進(jìn)以飼草種植和奶牛養(yǎng)殖為基礎(chǔ)的奶業(yè)產(chǎn)業(yè)鏈的收益分配機(jī)制,發(fā)揮草地-奶牛系統(tǒng)的綜合優(yōu)勢(shì)。
產(chǎn)奶量;牧草;草地農(nóng)業(yè);系統(tǒng)耦合;系統(tǒng)相悖;草地-奶牛系統(tǒng);奶業(yè)監(jiān)管體系
目前,全球年產(chǎn)奶量約7.49億t,人均年占有量約107 kg。我國(guó)全年生鮮乳總產(chǎn)量約3 825萬(wàn)t,人均占有量?jī)H27.3 kg,只有世界平均水平的25.5%;全國(guó)奶牛存欄1 400萬(wàn)頭,位居世界第3位;全國(guó)百頭以上奶牛養(yǎng)殖規(guī)模的比重達(dá)45%,機(jī)械化擠奶率90%,奶農(nóng)專業(yè)合作社數(shù)量1.3萬(wàn)個(gè),奶業(yè)為我國(guó)社會(huì)經(jīng)濟(jì)發(fā)展和人民提供了食物保障[1-2]。但是,2008年“三聚氰胺”奶粉事件對(duì)我國(guó)奶業(yè)造成了巨大沖擊,引發(fā)了“奶荒”、“奶業(yè)寒冬”[3-7]。奶粉進(jìn)口量2008年為10萬(wàn)t,2014年迅速攀升到92萬(wàn)t[8-10],我國(guó)群眾在境外購(gòu)買奶粉引起國(guó)際市場(chǎng)的反應(yīng),德國(guó)、荷蘭、澳大利亞、新西蘭等相繼出臺(tái)奶粉限購(gòu)政策[11-17]。國(guó)內(nèi)龍頭企業(yè)開(kāi)始在大洋洲、歐洲、美洲布局奶源基地[18-20]。根據(jù)食品發(fā)展規(guī)劃,到2020年,我國(guó)奶類人均消費(fèi)量將達(dá)到36 kg[21-22]。為了解決牛奶生產(chǎn)供不應(yīng)求的矛盾,國(guó)家制定了《奶業(yè)整頓和振興規(guī)劃綱要》、《乳品質(zhì)量安全監(jiān)督管理?xiàng)l例》等,實(shí)施奶牛標(biāo)準(zhǔn)化規(guī)模養(yǎng)殖和振興奶業(yè)苜蓿發(fā)展行動(dòng),著手構(gòu)建飼草-良種-牧場(chǎng)-監(jiān)測(cè)的牛奶生產(chǎn)體系[21-25]。
美國(guó)是最大的發(fā)達(dá)國(guó)家,長(zhǎng)期發(fā)展規(guī)?;B(yǎng)殖場(chǎng),實(shí)行“從農(nóng)田到餐桌”的全程監(jiān)管,2013年牛奶產(chǎn)量和人均牛奶占有量分別是我國(guó)的1.6和10.2倍[26]。印度是僅次于我國(guó)的最大的發(fā)展中國(guó)家。半個(gè)多世紀(jì)以來(lái),印度相繼實(shí)施“白色革命”(White Revolution)和“洪流運(yùn)動(dòng)”(Torrent Movement),推廣奶農(nóng)生產(chǎn)合作模式和監(jiān)管體系,2013年印度牛奶產(chǎn)量和人均牛奶占有量分別是我國(guó)的1.7和6.1倍[27-29]。當(dāng)前,我國(guó)奶業(yè)正處于轉(zhuǎn)型發(fā)展的關(guān)鍵時(shí)刻,提升空間巨大,借鑒美國(guó)和印度奶業(yè)發(fā)展經(jīng)驗(yàn),對(duì)調(diào)整我國(guó)生鮮乳生產(chǎn)模式,完善監(jiān)管保障體系,實(shí)現(xiàn)奶業(yè)持續(xù)、健康發(fā)展具有積極意義。
1.1 國(guó)內(nèi)外牛奶產(chǎn)量
2000年至2015年,中國(guó)、印度、美國(guó)的牛奶總產(chǎn)量均呈上升趨勢(shì)(圖1)。美國(guó)牛奶總產(chǎn)量從1950年的5 329.17萬(wàn)t增至2015年的9 471萬(wàn)t,奶牛存欄從2 500萬(wàn)頭下降到922.1萬(wàn)頭,奶牛單產(chǎn)從2.13 t增加到10.27 t[30]。美國(guó)、印度的牛奶年產(chǎn)量平均分別高于中國(guó)192%(P<0.001)和66%(P<0.001);但是,我國(guó)與兩國(guó)的差距逐漸縮小,2000年美國(guó)和印度的牛奶產(chǎn)量分別為我國(guó)的8.8和3.8倍,2015年分別為2.5
圖1 2000-2015年美國(guó)、印度和中國(guó)的牛奶產(chǎn)量變化Fig.1 Change of milk yield in USA, India and China from 2000 to 2015
注:數(shù)據(jù)來(lái)自FAO。
Note: Data are from FAO.
和1.7倍。不同的是,我國(guó)牛奶產(chǎn)量在此期間經(jīng)歷了兩個(gè)明顯的變化階段:2007年以前為迅速增長(zhǎng)階段,年均增幅為411.23萬(wàn)t(Y=411.23X-821 779,R2=0.987 6,P<0.001);2008年至今為緩慢增長(zhǎng)或停滯階段,年均增幅不足0.7%,增速只有前一階段的3.2%。
1.2 人均牛奶占有量
2000年至2015年,中國(guó)、印度、美國(guó)的人均牛奶占有量均呈緩慢上升趨勢(shì)(圖2)。
美國(guó)、印度的人均牛奶占有量平均分別高出中國(guó)的12.11倍(P<0.001)和89%(P<0.001)。但是,我國(guó)人均牛奶占有量增幅高于美、印兩國(guó),2000年,美國(guó)和印度的人均牛奶占有量分別為我國(guó)的40.4和4.7倍,2015年分別下降到10.8和1.9倍。與產(chǎn)奶量相似,我國(guó)人均牛奶占有量在此期間也經(jīng)歷了兩個(gè)明顯階段:2007年以前年均增幅3.02 kg(Y=3.015 6X-6 025.8,R2=0.988 2,P<0.001);2008年至今增長(zhǎng)緩慢或停滯,年均增幅不足0.5%,增速只有前一階段的2.2%左右。中、美、印三國(guó)牛奶總產(chǎn)量和人均占有量的變化表明:“三聚氰胺”奶粉事件對(duì)我國(guó)奶業(yè)造成根本性損害,當(dāng)時(shí)應(yīng)急措施沒(méi)有治本,當(dāng)前牛奶生產(chǎn)系統(tǒng)沒(méi)有解決根本問(wèn)題。本質(zhì)原因是牧草生產(chǎn)系統(tǒng)與奶牛生產(chǎn)系統(tǒng)的時(shí)間、空間和種間的系統(tǒng)相悖,導(dǎo)致各空間尺度上奶牛生產(chǎn)系統(tǒng)缺乏優(yōu)質(zhì)足量牧草。
圖2 2000-2015年美國(guó)、印度和中國(guó)的人均牛奶占有量變化Fig.2 Change of milk occupancy per capita in USA, India and China from 2000 to 2015
注:數(shù)據(jù)來(lái)自FAO。
Note: Data are from FAO.
2.1 我國(guó)乳制品消費(fèi)現(xiàn)狀
我國(guó)乳制品消費(fèi)主要集中于城鎮(zhèn)(圖3)。2003年以前是城鎮(zhèn)乳制品消費(fèi)的增長(zhǎng)期,從1978年人均3.02 kg·a-1上升到2003年的21.71 kg·a-1,年均增幅11.18%[31];2003年-2006年為停滯期,人均消費(fèi)量徘徊在21.71-22.54 kg·a-1;2006年-2011年,城鎮(zhèn)居民消費(fèi)負(fù)增長(zhǎng),下降到17.9 kg·a-1,主要因?yàn)槿丝谠鲩L(zhǎng)快和“三聚氰胺”奶粉事件;自2011年起,城鎮(zhèn)乳制品人均消費(fèi)量回升,2015年達(dá)到25.8 kg·a-1,其中北京、上海、廣州等特大城市液態(tài)奶消費(fèi)增長(zhǎng)達(dá)20%~30%[31]。
過(guò)去15年,我國(guó)鄉(xiāng)村乳制品人均消費(fèi)量在低水平持續(xù)增長(zhǎng)(圖3)。2007年以前為緩慢增長(zhǎng)期,人均達(dá)到2.23 kg·a-1,年均增幅20.69%;2007年-2012年為停滯期,2012年人均消費(fèi)量約3.5 kg;年均增長(zhǎng)僅2.42%;2012年為快速增長(zhǎng)期,2015年達(dá)到7.9 kg,年均增幅32.14%。但是,目前鄉(xiāng)村乳制品人均消費(fèi)量?jī)H為城鎮(zhèn)居民的30.7%。
2.2 我國(guó)乳品加工現(xiàn)狀
2004年到2015年,我國(guó)乳制品產(chǎn)量增長(zhǎng)速度較快,2004年為949.18萬(wàn)t,2007年至1 787.44萬(wàn)t,2014年達(dá)到2 651.81萬(wàn)t(圖4)。我國(guó)牛奶與乳制品的產(chǎn)量、消費(fèi)量變化趨勢(shì)不一致,一定程度上因?yàn)榕D毯腿橹破愤M(jìn)口增多[8]。2008年之前,我國(guó)牛奶產(chǎn)量和牛奶消費(fèi)量的年均增幅分別為16%和24%,乳制品進(jìn)口量維持在30萬(wàn)t左右;2008年之后,我國(guó)牛奶產(chǎn)量增速減緩,甚至在2013年出現(xiàn)負(fù)增長(zhǎng),而乳制品消費(fèi)量的年均增幅為6.4%,主要是由于乳制品進(jìn)口大幅上升,年均增幅達(dá)28%,其中,奶粉從2008年14萬(wàn)t增長(zhǎng)至2015年的95萬(wàn)t,年均增幅達(dá)39.4%,接近了40%。進(jìn)口乳制品折合生鮮乳約1 200萬(wàn)t,占全國(guó)奶類總產(chǎn)量的1/3[9-10]。我國(guó)乳制品進(jìn)口來(lái)源地與價(jià)格有密切關(guān)系,進(jìn)口量依次為新西蘭80%、歐盟8%、美國(guó)5%、澳洲4%,生鮮乳價(jià)格依次為新西蘭2.68 CNY·kg-1、美國(guó)3.2 CNY·kg-1、歐盟3.05 CNY·kg-1,而我國(guó)均價(jià)是4.05 CNY·kg-1[32]。
圖3 2001-2015年城鄉(xiāng)居民人均乳制品購(gòu)買量變化Fig.3 Purchases of dairy products of urban and rural residents in China from 2001 to 2015
注:數(shù)據(jù)來(lái)自中國(guó)奶業(yè)信息網(wǎng)(http://www.chinadairyindustry.org.cn/)。圖4同。
Note: Data are from the China Dairy Industry Information Network(http://www.chinadairyindustry.org.cn/). The same in Fig.4.
圖4 2004-2015年中國(guó)乳制品產(chǎn)量及各類乳制品所占比例變化Fig.4 Dairy production and importation in China from 2004 to 2015
液態(tài)奶占乳制品比重較大,十余年來(lái)呈不斷上升趨勢(shì),從2004年的84.99%升高到2014年的90.51%;干乳制品占比逐漸減少,在產(chǎn)品結(jié)構(gòu)上,奶粉已經(jīng)不再是主產(chǎn)品(圖4)。2012年,全國(guó)有乳制品加工企業(yè)642個(gè),數(shù)量依次為山東、黑龍江、內(nèi)蒙古、河南、陜西、河北、新疆、江蘇[33]。美國(guó)等發(fā)達(dá)國(guó)家的乳制品主要用于滿足國(guó)內(nèi)需求,精加工產(chǎn)品出口比例較高,1970年后美國(guó)因體重超標(biāo)等健康問(wèn)題,全脂牛奶和黃油的人均消費(fèi)量減少,低脂和脫脂牛奶、酸奶和奶酪的人均消費(fèi)量持續(xù)增長(zhǎng)[28];目前,美國(guó)乳制品出口總值達(dá)52億美元,出口量為149萬(wàn)t干物質(zhì),占全美牛奶產(chǎn)量的13.2%[28,34];其中,用于出口的脫脂奶粉和乳清粉分別占其國(guó)內(nèi)產(chǎn)量的87.3%和47%,分別占全球總出口量的19%和22%[28,34]。
2.3 牛奶產(chǎn)量和乳制品進(jìn)口量對(duì)乳制品消費(fèi)量的影響
城鎮(zhèn)居民和鄉(xiāng)村居民人均乳制品消費(fèi)量隨牛奶產(chǎn)量增加而線性上升(圖5),擬合方程的斜率差異不顯著,但截距差異顯著(P<0.001);二者與乳制品進(jìn)口量線性相關(guān)極顯著(P<0.001),擬合直線的斜率無(wú)顯著差異,截距差異極顯著(圖5)??梢?jiàn),鄉(xiāng)村居民與城鎮(zhèn)居民乳制品消費(fèi)的差距由來(lái)已久,且無(wú)縮小跡象。 結(jié)構(gòu)方程模型顯示,我國(guó)牛奶產(chǎn)量顯著影響鄉(xiāng)村居民乳制品消費(fèi),乳制品進(jìn)口量對(duì)城鄉(xiāng)居民消費(fèi)量有顯著作用,二者對(duì)鄉(xiāng)村居民乳制品消費(fèi)的作用接近(圖6)。
圖5 牛奶產(chǎn)量和乳制品進(jìn)口量與城鄉(xiāng)居民乳制品人均消費(fèi)量的回歸分析Fig.5 Regression analysis between milk yield and dairy product importance with consumption of milk production per rural resident and per urban resident
間接作用Indirecteffect作用值EstimateP牛奶產(chǎn)量通過(guò)乳制品進(jìn)口量對(duì)鄉(xiāng)村居民乳制品人均消費(fèi)量Milkyieldthroughdairyproductimportanceonconsumptionofmilkproductionperruralresident0.31320.015乳制品進(jìn)口量通過(guò)牛奶產(chǎn)量對(duì)鄉(xiāng)村居民乳制品人均消費(fèi)量Dairyproductimportancethroughmilkyieldonconsumptionofmilkproductionperruralresident0.31900.003
圖6 牛奶產(chǎn)量和乳制品進(jìn)口量對(duì)城鄉(xiāng)居民乳制品人均消費(fèi)量的影響
Fig.6 Effect of milk yield and dairy product importance on consumption of
milk production per rural resident and per urban resident
美國(guó)牛奶產(chǎn)業(yè)支持生產(chǎn)、貯藏、加工、銷售等高度一體化,有3種主要的組織形式[35-36]:縱向一體化,牛奶生產(chǎn)、加工、銷售全過(guò)程由一個(gè)生產(chǎn)單位(企業(yè)或農(nóng)場(chǎng))完成;市場(chǎng)結(jié)合型,多個(gè)生產(chǎn)單位通過(guò)市場(chǎng)結(jié)合、牛奶生產(chǎn)和加工等不同生產(chǎn)環(huán)節(jié)分工協(xié)作;橫向一體化,多個(gè)生產(chǎn)單位分別獨(dú)立進(jìn)行牛奶生產(chǎn)和加工,通過(guò)契約合同相聯(lián)系(圖7)。由于牛奶及其制品不易長(zhǎng)期貯藏,生產(chǎn)和銷售時(shí)間短,一體化生產(chǎn)較有優(yōu)勢(shì)[37]。
圖7 中國(guó)、美國(guó)、印度奶業(yè)產(chǎn)業(yè)鏈Fig.7 The dairy production systems of China, USA and India
注:虛線框?yàn)楦鲊?guó)產(chǎn)業(yè)鏈不同部分,實(shí)線框?yàn)楦鲊?guó)產(chǎn)業(yè)鏈相同部分。
Note:The dotted frames indicate different parts and the solid frames indicate the same parts of the dairy chain in different countries.
印度和中國(guó)人口眾多,奶業(yè)發(fā)展都有人多地少、奶源分散、散戶規(guī)模小等共同特點(diǎn)。印度通過(guò)“白色革命”成立了 “國(guó)家乳品發(fā)展局”和“印度乳品公司”,作為奶業(yè)發(fā)展的主管機(jī)構(gòu)和企業(yè);通過(guò)“洪流運(yùn)動(dòng)”建立了合作社,集中散戶的奶源,建立了以牛奶加工為中心、產(chǎn)前產(chǎn)后供銷一體化的產(chǎn)業(yè)體系,各個(gè)生產(chǎn)單元為利益共同體,保障奶農(nóng)利益,調(diào)動(dòng)積極性[38-41]。
我國(guó)牛奶產(chǎn)業(yè)鏈結(jié)構(gòu)簡(jiǎn)單,牛奶規(guī)范化生產(chǎn)不甚嚴(yán)格,尚有散戶生產(chǎn)、加工、自銷(圖7)。根本原因是草地農(nóng)業(yè)生產(chǎn)系統(tǒng)結(jié)構(gòu)不健全, 而且整個(gè)生產(chǎn)流程疏于監(jiān)管, 導(dǎo)致植物生產(chǎn)和動(dòng)物生產(chǎn)的系統(tǒng)相悖[5,42]。奶農(nóng)和乳制品加工企業(yè)之間以及奶制品加工企業(yè)之間聯(lián)系不緊密,多為單純的買賣與競(jìng)爭(zhēng)關(guān)系,企業(yè)處于絕對(duì)支配地位,相互之間信息傳遞慢、甚至為了利益競(jìng)爭(zhēng)相互封鎖信息。市場(chǎng)效益好,雙方受益;反之,首先犧牲奶農(nóng)利益,進(jìn)而最終影響乳制品加工企業(yè)利益。
我國(guó)牛奶生產(chǎn)系統(tǒng)按規(guī)模分為3種模式[43]。1)散戶分散養(yǎng)殖模式:養(yǎng)殖風(fēng)險(xiǎn)和市場(chǎng)風(fēng)險(xiǎn)小,收益低,即低投入、低風(fēng)險(xiǎn)、低產(chǎn)出的“三低模式”;2)散戶集中養(yǎng)殖(小區(qū))模式,養(yǎng)殖風(fēng)險(xiǎn)和市場(chǎng)風(fēng)險(xiǎn)分散到小區(qū)的每一戶,收益中等,即投入、風(fēng)險(xiǎn)、收入中等的“三中模式”;3)企業(yè)規(guī)?;B(yǎng)殖模式:投入大,養(yǎng)殖風(fēng)險(xiǎn)和市場(chǎng)風(fēng)險(xiǎn)高,收益也高,即“三高模式”[44-45]。飼養(yǎng)管理水平?jīng)Q定了奶牛養(yǎng)殖的效益,效益反過(guò)來(lái)又影響飼養(yǎng)管理的投入,奶牛養(yǎng)殖周期長(zhǎng),成本與收益包括的內(nèi)容與環(huán)節(jié)相對(duì)較多。總體上,規(guī)模養(yǎng)殖企業(yè)的利潤(rùn)高于養(yǎng)殖小區(qū)養(yǎng)殖戶,養(yǎng)殖小區(qū)養(yǎng)殖戶略高于散戶[1-20,46],規(guī)模差異最終體現(xiàn)在生產(chǎn)效益上。規(guī)?;B(yǎng)殖企業(yè)飼養(yǎng)水平高,管理規(guī)范,牛奶營(yíng)養(yǎng)指標(biāo)和衛(wèi)生指標(biāo)高而穩(wěn)定;養(yǎng)殖小區(qū)的養(yǎng)殖戶統(tǒng)一飼喂、較為精細(xì),牛奶質(zhì)量高于散戶養(yǎng)殖[18-20];可以說(shuō),養(yǎng)殖模式影響著牛奶質(zhì)量,最終決定了長(zhǎng)遠(yuǎn)的生產(chǎn)效益(表1)。
質(zhì)量監(jiān)管是食品安全的根本保障[7]。美國(guó)乳品安全監(jiān)管是從源頭到餐桌的全程監(jiān)管。聯(lián)邦政府以農(nóng)業(yè)部(USDA)為主體,下設(shè)多個(gè)部門,職責(zé)明確、互相協(xié)調(diào)和配合,發(fā)揮行業(yè)協(xié)會(huì)的作用,依法監(jiān)管,建立和推廣食品安全保證體系(Hazard Analysis Critical Control Point,HACCP),形成了完整的監(jiān)管網(wǎng)絡(luò)[47-51](表2)。
印度“洪流計(jì)劃”提升了奶業(yè)整體質(zhì)量安全水平。政府依托奶農(nóng)合作社組織網(wǎng)絡(luò),保障乳制品質(zhì)量安全生產(chǎn)?;鶎雍献魃缰笇?dǎo)奶農(nóng)飼養(yǎng)、防疫,對(duì)生鮮乳進(jìn)行嚴(yán)格的質(zhì)量檢驗(yàn);同時(shí),食品安全與標(biāo)準(zhǔn)局(FSSAI)作為國(guó)家專門機(jī)構(gòu),保障《食品安全與標(biāo)準(zhǔn)法》的執(zhí)法力度[28-29](表2)。
我國(guó)的管理機(jī)構(gòu)較多,包括農(nóng)業(yè)、工商、貿(mào)易、司法、監(jiān)管等部門,是一種多頭執(zhí)行的管理體制(表2)[23],沒(méi)有類似HACCP的乳品質(zhì)量安全管理體系,沒(méi)有發(fā)揮行業(yè)協(xié)會(huì)等社會(huì)力量的作用[21-22,24-25],草畜系統(tǒng)從生產(chǎn)到監(jiān)管的失控[5]。
此外,一些經(jīng)濟(jì)發(fā)達(dá)國(guó)家對(duì)乳制品的環(huán)境標(biāo)準(zhǔn)要求更高,對(duì)于牛奶成分中各種物質(zhì)的含量相對(duì)也比中國(guó)的標(biāo)準(zhǔn)高出一些[24,52-57](表3)。
根據(jù)國(guó)內(nèi)外奶業(yè)發(fā)展的經(jīng)驗(yàn),我國(guó)應(yīng)該建立以草地—牛奶生產(chǎn)體系為核心的草地農(nóng)業(yè)系統(tǒng),并加強(qiáng)其縱向系統(tǒng)耦合和橫向系統(tǒng)耦合[5,43];在此基礎(chǔ)上,完善我國(guó)的乳品監(jiān)管保障體系。
5.1 建設(shè)以牛奶生產(chǎn)為目標(biāo)的草地農(nóng)業(yè)系統(tǒng)
草地農(nóng)業(yè)系統(tǒng)以草地資源為基礎(chǔ)[58]。以牛奶生產(chǎn)為目標(biāo)的草地農(nóng)業(yè)系統(tǒng)包括景觀生產(chǎn)、牧草生產(chǎn)、奶牛生產(chǎn)、奶制品加工貯運(yùn)等4個(gè)生產(chǎn)層,一個(gè)系統(tǒng)內(nèi)的不同生產(chǎn)層可以實(shí)行縱向的系統(tǒng)耦合,多個(gè)草地農(nóng)業(yè)系統(tǒng)之間或者草地農(nóng)業(yè)系統(tǒng)與旅游、林地、工業(yè)等生產(chǎn)系統(tǒng)之間也可以開(kāi)展橫向的系統(tǒng)耦合[43,58],其目標(biāo)是提高生態(tài)生產(chǎn)力。
5.1.1 縱向的系統(tǒng)耦合 2008年以來(lái)我國(guó)玉米(Zeamay)、大豆(Glycinemax)、苜蓿(Medicagosativa)等干草進(jìn)口持續(xù)增高,2015年分別達(dá)到250萬(wàn)、8 169萬(wàn)和136.5萬(wàn)t。目前,我國(guó)紫花苜蓿保留面積471.11萬(wàn)hm2,產(chǎn)量2 803.92萬(wàn)t,僅為美國(guó)的63.6%和22.18%倍;苜蓿干草單產(chǎn)6.27 t·hm-2,僅為美國(guó)的76.92%[59-61]。我國(guó)飼草生產(chǎn)與牛奶生產(chǎn)矛盾突出。
2015-2016年,我國(guó)原奶收購(gòu)價(jià)格為2.6~4.1元·kg-1,波動(dòng)幅度大。液態(tài)奶因品牌、包裝等不同,價(jià)格從6.5到20.0元·kg-1不等,同品牌同類型液態(tài)奶的價(jià)格變化不大,液態(tài)奶的價(jià)格是原奶價(jià)格的2.5~7.7倍,原奶生產(chǎn)者的效益遠(yuǎn)低于乳制品加工企業(yè),在牛奶生產(chǎn)體系中處于絕對(duì)劣勢(shì)地位,導(dǎo)致奶業(yè)利益分配很不均衡,一味強(qiáng)調(diào)深加工將進(jìn)一步導(dǎo)致利益分配失衡。
目前,超高溫滅菌乳在我國(guó)液態(tài)奶中所占比例高達(dá)80%,是巴氏殺菌乳的4倍,而美國(guó)巴氏殺菌乳所占比例高達(dá)99.7%。超高溫滅菌乳的乳清蛋白變性率,蛋氨酸和胱氨酸的損失率分別高達(dá)91%,34%和34%,是巴氏殺菌乳的91倍,3.4倍和7.4倍,加工的熱能消耗也高得多[62],生鮮乳適度加工才能保質(zhì)保量。
因此,我國(guó)奶業(yè)發(fā)展在擴(kuò)大飼料進(jìn)口基礎(chǔ)上,應(yīng)確定“優(yōu)質(zhì)飼草-高產(chǎn)優(yōu)質(zhì)奶”的發(fā)展思路,乳制品生產(chǎn)單位應(yīng)建立景觀生產(chǎn)、牧草生產(chǎn)、牛奶生產(chǎn)、加工及銷售為一體的草地農(nóng)業(yè)系統(tǒng),通過(guò)四個(gè)生產(chǎn)層的縱向耦合,保證奶牛優(yōu)質(zhì)高產(chǎn),同時(shí)避免生鮮乳過(guò)度加工導(dǎo)致的物質(zhì)損失、質(zhì)量下降和污染風(fēng)險(xiǎn),改進(jìn)奶業(yè)產(chǎn)業(yè)鏈的收益分配機(jī)制,提高奶業(yè)產(chǎn)業(yè)化經(jīng)營(yíng)水平,充分發(fā)揮草地-奶牛系統(tǒng)的綜合優(yōu)勢(shì)[62-66]。
5.1.2 橫向的系統(tǒng)耦合 在一定區(qū)域內(nèi),農(nóng)戶生產(chǎn)專業(yè)分工,加強(qiáng)種草農(nóng)戶與養(yǎng)畜農(nóng)戶的耦合以及養(yǎng)畜農(nóng)戶與乳品加工企業(yè)的耦合。我國(guó)幅員遼闊,每個(gè)生態(tài)區(qū)的牛奶生產(chǎn)系統(tǒng)不同程度地存在草畜系統(tǒng)的時(shí)間相悖,可以發(fā)展跨區(qū)域的草畜系統(tǒng)空間耦合。北方地區(qū)草原面積達(dá)2.38億hm2,可利用面積84.03%[67],氣候適宜牧草生長(zhǎng)和收貯,為奶牛養(yǎng)殖提供了豐富的牧草資源和飼料來(lái)源,因此我國(guó)奶牛養(yǎng)殖整體呈現(xiàn)“北多南少”,但是南方牧草營(yíng)養(yǎng)體生產(chǎn)較少受到氣候限制,可以不間斷供應(yīng)青綠飼草,優(yōu)化飼草資源和奶牛養(yǎng)殖的區(qū)域布局具有提高我國(guó)奶牛產(chǎn)量的潛力。國(guó)內(nèi)龍頭企業(yè)在內(nèi)蒙古、天津、河北、山東等北方地區(qū)均建有奶源基地,內(nèi)蒙古有2 000頭到3 000頭奶牛牧場(chǎng)21座、3 000頭到1萬(wàn)頭奶牛牧場(chǎng)6座、家庭牧場(chǎng)130座,100頭以上標(biāo)準(zhǔn)化規(guī)模養(yǎng)殖奶牛存欄比重超過(guò)80%[67]。同時(shí),要避免企業(yè)間為了利益競(jìng)爭(zhēng)相互之間信息傳遞慢,甚至封鎖信息。加強(qiáng)諸多生產(chǎn)單位通過(guò)契約的橫向系統(tǒng)耦合,以紫花苜蓿等栽培草地為基礎(chǔ),推進(jìn)奶牛養(yǎng)殖區(qū)域優(yōu)化布局,實(shí)現(xiàn)牧草和奶牛生產(chǎn)協(xié)作的農(nóng)場(chǎng)外跨區(qū)域耦合[27,68-77]。
表1 我國(guó)牛奶生產(chǎn)模式與牛奶品質(zhì)Table 1 Milk production mode and milk quality in China
表2 美國(guó)、中國(guó)、印度乳制品質(zhì)量安全監(jiān)管體系Table 2 The supervision system of dairy quality and safety in USA, China and India
表3 世界各國(guó)牛奶的衛(wèi)生標(biāo)準(zhǔn)Table 3 Health standards of milk in other countries
5.2 建設(shè)以系統(tǒng)耦合為基礎(chǔ)的乳品監(jiān)管保障體系
牛奶安全生產(chǎn)需要監(jiān)管體系等制度保障[7],與草地農(nóng)業(yè)系統(tǒng)的結(jié)構(gòu)與功能相適應(yīng)[5],通過(guò)縱向的系統(tǒng)耦合建立以一個(gè)部門為主體,其它部門相補(bǔ)充的監(jiān)管體制,同時(shí)以橫向的系統(tǒng)耦合為基礎(chǔ)打破區(qū)域限制建立全國(guó)協(xié)作的監(jiān)管體制[5,43,58]。
5.2.1 縱向的監(jiān)管體制 美國(guó)以農(nóng)業(yè)部(USDA)為主體,針對(duì)農(nóng)業(yè)、農(nóng)村和農(nóng)場(chǎng)管理需求新設(shè)機(jī)構(gòu), 吸納其他部委職能與之重疊、相近的機(jī)構(gòu), 各部門職責(zé)明確、互相協(xié)調(diào)和配合,發(fā)揮行業(yè)協(xié)會(huì)的作用,依法監(jiān)管,建立和推廣食品安全保證體系(HACCP),實(shí)現(xiàn)了 “從農(nóng)田到餐桌”的全程監(jiān)管[5]。印度以國(guó)家乳制品發(fā)展委員會(huì)(NDDB)和食品安全與標(biāo)準(zhǔn)局(FSAI)為主體,依托現(xiàn)有的113 152個(gè)奶農(nóng)合作社所包含的1 200 萬(wàn)奶農(nóng)成員組織網(wǎng)絡(luò),推動(dòng)HACCP認(rèn)證,將全國(guó)15個(gè)牛奶主產(chǎn)區(qū)的奶農(nóng)合作社聯(lián)盟納入“全國(guó)范圍牛奶質(zhì)量參數(shù)數(shù)據(jù)庫(kù)”,以農(nóng)民組織、食品企業(yè)、零售商組織、消費(fèi)者組等各界人士為FSAI成員,將牛奶生產(chǎn)、加工與市場(chǎng)銷售連接起來(lái),整體保障乳制品質(zhì)量安全生產(chǎn)[28-29]。我國(guó)應(yīng)以健康的環(huán)境-健康的牧草-健康的奶牛-健康的奶制品為原則,建立以生態(tài)環(huán)境、牧草生產(chǎn)、牛奶生產(chǎn)、生鮮乳加工等全產(chǎn)業(yè)鏈的監(jiān)管體系,實(shí)現(xiàn)從水源、土壤到餐桌的牛奶生產(chǎn)安全保障[5,78-81]。
5.2.2 橫向的監(jiān)管體制 草地農(nóng)業(yè)系統(tǒng)產(chǎn)業(yè)鏈長(zhǎng)、生產(chǎn)環(huán)節(jié)多、區(qū)域跨度大[5]。除了4個(gè)生產(chǎn)層的縱向管理,還應(yīng)推進(jìn)以跨區(qū)域合作組織為依托的橫向管理,打破地方保護(hù)主義,建立國(guó)家層面的跨行政區(qū)乳品管理協(xié)調(diào)機(jī)構(gòu),在農(nóng)業(yè)部下增設(shè)跨界協(xié)調(diào)司,專門負(fù)責(zé)跨行政區(qū)乳品管理相關(guān)工作,以草地農(nóng)業(yè)生態(tài)系統(tǒng)4個(gè)生產(chǎn)層為基礎(chǔ),擬訂跨行政區(qū)乳品管理法規(guī),指導(dǎo)和管理跨區(qū)域乳品合作,促進(jìn)牛奶生產(chǎn)體系的橫向耦合,同時(shí)建立跨區(qū)域的監(jiān)管保障與協(xié)調(diào)等機(jī)構(gòu)。
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(責(zé)任編輯 武艷培)
Situation and countermeasures of milk safety production in China
Zhang Jie, Shi Dong-ji, Wang Zhao-feng, Hou Fu-jiang
(State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology , Lanzhou University, Lanzhou 730020, China)
Milk production and occupancy per capita over the last 15 years in China can be divided into two periods of time: a rapid growth period (2000-2007, with average annual increases of 22.64% and 21.97%) and a slow growth period (dating from the 2008 “melamine” milk powder incident, with the average annual increase of 0.72% and 0.49%). Since 2000, the milk production and milk occupancy per capita of China have respectively increased 4.35 and 4.11 times, but is still 1/3 of the milk production in the United States and 1/2 of that in India, and milk occupancy per capita is still less than 1/10 of that in the United States and 1/2 of that in India. The per capita dairy consumption of urban and rural residents increases linearly with increase in milk yield and dairy product importance, with respective average annual increases of 5.35% and 15.77%. China’s milk production has a significant impact on rural dairy consumption, and dairy imports have a significant effect on dairy consumption of both urban and rural residents. Through a comparative analysis of domestic and international information, it can be concluded that China’s milk production system should speed up the grass planting-dairy production-milk processing-milk sales of the longitudinal system coupling, and strengthen the production of many units through the contract system of lateral coupling. According to the theory of four production layers of grassland agriculture, our next steps should be to establish dairy production supervision and protection, from the level of soil and water conservation to the level of consumption, to improve the income distribution mechanism of dairy industry chain based on forage grass planting and dairy cattle breeding, and to take advantage of the integrated systems of grassland and dairy cattle.
milk production; forage; grassland agriculture; system coupling; system contradicting; grassland-cow system; dairy supervision system
Hou Fu-jiang E-mail:cyhoufj@lzu.edu.cn
10.11829/j.issn.1001-0629.2016-0223
2016-04-25 接受日期:2016-07-13
公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)課題(20120304205);長(zhǎng)江學(xué)者和創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃(IRT13019);甘肅省退牧還草工程科技支撐項(xiàng)目(2015620111000485)
張潔(1993-),女,甘肅武威人,在讀碩士生,研究方向?yàn)榧倚笊a(chǎn)。E-mail:zhangjie14@lzu.edu.cn
侯扶江(1971-),男,河南扶溝人,教授,博導(dǎo),博士,研究方向?yàn)椴莸?家畜互作。E-mail:cyhoufj@lzu.edu.cn
S8-1;X56
A
1001-0629(2017)1-0138-10*
張潔,史東吉,王召鋒,侯扶江.我國(guó)牛奶安全生產(chǎn)現(xiàn)狀及對(duì)策.草業(yè)科學(xué),2017,34(1):138-151.
Zhang J,Shi D J,Wang Z F,Hou F J.Situation and countermeasures of milk safety production in China.Pratacultural Science,2017,34(1):138-151.