影響全價(jià)配合飼料的因素

linlin

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">隨著飼料市場(chǎng)競(jìng)爭(zhēng)的日趨激烈，顆粒飼料的顆粒質(zhì)量越來越受到重視。用戶要求飼料顆粒外觀光滑，顆粒均勻一致，顆粒硬度適宜，粉化率低，水分符合標(biāo)準(zhǔn)，而這些要求的實(shí)現(xiàn)涉及到飼料配方和原料品質(zhì)、飼料加工工藝及設(shè)備等諸多方面。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">5.1</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">飼料養(yǎng)分影響制粒</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>(1)</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">淀粉經(jīng)過高溫和加水調(diào)質(zhì)以后，可使淀粉糊化，轉(zhuǎn)化成單糖，提高飼料營(yíng)養(yǎng)價(jià)值，同時(shí)還可以起到潤(rùn)滑、粘結(jié)作用，降低顆粒飼料的粉化率，提高顆粒質(zhì)量。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>(2)</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">蛋白質(zhì)含量是決定顆粒質(zhì)量的重要因素，一般配方中蛋白質(zhì)含量較高時(shí)易制粒，顆粒質(zhì)量也較好，因?yàn)榈鞍踪|(zhì)受熱后可塑性、粘性增大，使制粒產(chǎn)量提高、質(zhì)量好。但當(dāng)配方中蛋白質(zhì)含量過高時(shí)，吸收蒸汽能力嚴(yán)重降低，飼料調(diào)質(zhì)溫度僅為</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">50</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">～</SPAN><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" UnitName="℃" SourceValue="60" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">60</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">℃</SPAN></st1:chmetcnv><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">，顆粒質(zhì)量嚴(yán)重下降。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>(3) </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">仔豬配合飼料通常添加油脂。飼料中加入適量的脂肪，則飼料通過模孔的流動(dòng)性好，摩擦阻力減少，飼料易于成型，且制粒機(jī)環(huán)模磨損小，能耗低，顆粒質(zhì)量好。但飼料中加入的脂肪含量過高，顆粒質(zhì)量反而下降，因油脂可使飼料粒子間的結(jié)合力下降，顆粒易碎裂，貯存電困難。國(guó)內(nèi)飼料制粒工藝流程一般都是在混合機(jī)處添加油脂。一般配合飼料中添加油脂以</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">3</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">％為宜。當(dāng)飼料中需要過量的脂肪時(shí)，可采用制粒后噴涂的方式添加。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>(4)</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">一般情況下，飼料調(diào)質(zhì)前的水分低于</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">12.5</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">％時(shí)，其吸收蒸汽的能力較強(qiáng)，調(diào)質(zhì)溫度高，顆粒質(zhì)量好。粉狀飼料調(diào)質(zhì)后水分在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">15.5</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">％～</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">17</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">％時(shí)效果好。近幾年來，每到新玉米上市時(shí)，飼料調(diào)質(zhì)時(shí)添加蒸汽困難，制粒生產(chǎn)功耗高。生產(chǎn)率低，飼料顆粒硬度差、粉化率高。針對(duì)這種情況，可以采取粉狀配合飼料暫存于制粒中間倉(cāng)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">16</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">～</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">24</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">小時(shí)，使原料間進(jìn)行充分傳質(zhì)，然后再制粒，可使飼料吸收蒸汽的能力上升，調(diào)質(zhì)溫度基本可保證在７<st1:chmetcnv w:st="on" UnitName="℃" SourceValue="0" HasSpace="False" Negative="False" NumberType="1" TCSC="0">０℃</st1:chmetcnv>以上。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>(5)</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">粉狀飼料中有吸濕性強(qiáng)的原料時(shí)，若生產(chǎn)準(zhǔn)備時(shí)間長(zhǎng)，則粉狀飼料的流動(dòng)性就會(huì)嚴(yán)重降低，同時(shí)，這類飼料制粒性能差，顆粒質(zhì)量差。例如在生產(chǎn)乳豬料時(shí)，加入檸檬酸、乳清粉、代乳粉等原料，由于這些原料遇空氣后極易變粘稠，且遇高溫易焦化，制粒時(shí)加蒸汽特別困難，調(diào)質(zhì)溫度低，顆粒質(zhì)量差。生產(chǎn)這類飼料時(shí)，只能采用少加蒸汽快速生產(chǎn)的方法。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">5.2</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">飼料原料影響顆粒飼料生產(chǎn)效率</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">一般含脂肪高的原料能提高生產(chǎn)效率，例如大豆粕、花生餅粕；含纖維高的原料會(huì)降低生產(chǎn)效率，如谷物酒糟、米糠、甜菜粕；而玉米、大麥、魚粉、小麥細(xì)麩、大麥等的成粒能力中等；不過也有例外，例如玉米油粕粉含粗纖維</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">11.5</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">，而成粒能力很好，脫水苜蓿含粗纖維</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">20</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">％左右，而成粒能力中等，小麥粉含脂肪</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman"> 1</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">％左右，而成粒能力也在中等。所以設(shè)計(jì)飼料配方時(shí)應(yīng)考慮各種原料的成粒能力大小和營(yíng)養(yǎng)特性進(jìn)行互補(bǔ)，選擇合適的原料相互搭配。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">飼料配方和原料品質(zhì)對(duì)顆粒質(zhì)量影響極大。能量飼料和蛋白飼料是主要原料，也是影響顆粒質(zhì)量的主要因素。目前各種替代蛋白原料例如</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">DDG</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">、啤酒糟、玉米蛋白粉、菌體蛋白、飼料酵母、菜粕、棉粕、血粉、肉（骨）粉、蠶蛹粉等，品質(zhì)相差較大，致使飼料吸收蒸汽的能力下降，表現(xiàn)為顆粒松散、表面無澤、硬度差、粉化率高。為改善顆粒質(zhì)量，經(jīng)常需要在配方中添加增加粘結(jié)成分，如小麥、次粉或膨潤(rùn)土等。加適量的小麥或次面粉效果較好，主要因其富含面筋蛋白和可溶性纖維素，較易于吸收蒸汽而熟化，從而提高顆粒質(zhì)量。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">5.3</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">生產(chǎn)工藝設(shè)備的影響</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">這里只談與飼料配方設(shè)計(jì)有關(guān)的問題。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">小型飼料廠常采用低壓蒸汽鍋爐，其所用蒸汽壓力一般為</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">0.2</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">～</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">0.4MPa</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">，蒸汽鍋爐也放置于制粒機(jī)附近，由于其產(chǎn)量較低，蒸汽管道輸送距離短，制粒機(jī)環(huán)?？讖叫。ㄒ话銥椐?lt;/SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">～ф</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">3</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">），因而其顆粒質(zhì)量較好；大型飼料廠由于產(chǎn)量高、設(shè)備多，蒸汽鍋爐一般都遠(yuǎn)離生產(chǎn)車間，因而其蒸汽輸送管道較長(zhǎng)（通常在幾百米），常采用高溫高壓蒸汽，以確保制粒調(diào)質(zhì)時(shí)的蒸汽質(zhì)量。一般使用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">0.8MPa</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">180</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">℃</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">的飽和蒸汽。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">?？字睆郊叭肓襄F孔：在環(huán)模厚度不變的情況下，?？字睆綔p少，則飼料顆粒受擠壓的強(qiáng)度升高，顆粒形整齊、硬度和密度提高、粉化率降低。據(jù)資料反映，模孔為φ</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">～φ</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><FONT face="Times New Roman">3mm</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">的飼料顆粒對(duì)乳豬、雛雞的飼養(yǎng)有益。</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></SPAN></P>

wanglf69

配合飼料質(zhì)量影響因素，多多學(xué)習(xí)。

zsp123

怎么這么多亂碼啊