二、提ti高gao蛋dan白bai質zhi的de生sheng物wu學xue價jia值zhi。采cai用yong理li想xiang的de蛋dan白bai質zhi模mo式shi,改gai善shan蛋dan白bai質zhi中zhong各ge種zhong氨an基ji酸suan的de平ping衡heng狀zhuang況kuang,可ke提ti高gao蛋dan白bai質zhi的de生sheng物wu學xue利li用yong價jia值zhi,有you效xiao降jiang低di飼si料liao粗cu蛋dan白bai質zhi水shui平ping,提ti高gao飼si料liao中zhong氮dan的de利li用yong率lv,減jian少shao糞fen便bian中zhong氮dan的de排pai泄xie量liang。這zhe樣yang既ji可ke節jie省sheng大da量liang的de天tian然ran蛋dan白bai質zhi飼si料liao資zi源yuan,又you可ke減jian輕qing集ji約yue化hua水shui產chan養yang殖zhi對dui環huan境jing的de氮dan汙wu染ran程cheng度du。
三、合he理li使shi用yong添tian加jia劑ji。部bu分fen添tian加jia劑ji的de合he理li使shi用yong可ke以yi在zai一yi定ding程cheng度du上shang改gai善shan飼si料liao的de品pin質zhi和he風feng味wei,促cu進jin水shui產chan動dong物wu攝she食shi,提ti高gao飼si料liao的de利li用yong率lv,從cong而er可ke以yi減jian輕qing對dui水shui體ti環huan境jing的de汙wu染ran程cheng度du。
1、肽製劑:肽(tai)是(shi)一(yi)種(zhong)高(gao)效(xiao)的(de)生(sheng)物(wu)活(huo)性(xing)物(wu)質(zhi),無(wu)藥(yao)物(wu)殘(can)留(liu),不(bu)會(hui)產(chan)生(sheng)抗(kang)藥(yao)性(xing)。為(wei)了(le)降(jiang)低(di)飼(si)料(liao)成(cheng)本(ben),在(zai)配(pei)製(zhi)水(shui)產(chan)飼(si)料(liao)時(shi)往(wang)往(wang)需(xu)要(yao)添(tian)加(jia)一(yi)定(ding)量(liang)的(de)植(zhi)物(wu)性(xing)原(yuan)料(liao)。使(shi)用(yong)肽(tai)製(zhi)劑(ji)後(hou)不(bu)僅(jin)可(ke)以(yi)改(gai)善(shan)飼(si)料(liao)的(de)適(shi)口(kou)性(xing),而(er)且(qie)還(hai)可(ke)以(yi)全(quan)麵(mian)促(cu)進(jin)飼(si)料(liao)營(ying)養(yang)成(cheng)分(fen)的(de)消(xiao)化(hua)和(he)吸(xi)收(shou),提(ti)高(gao)飼(si)料(liao)利(li)用(yong)率(lv),從(cong)而(er)大(da)大(da)減(jian)少(shao)水(shui)產(chan)動(dong)物(wu)排(pai)泄(xie)物(wu)中(zhong)的(de)有(you)機(ji)物(wu)、氮磷等營養物質的排出量,減少飼料中未消化物質對水環境的汙染。
2、高效礦物質:suiranshuichandongwukeyicongshuihuanjingzhongxishouyibufenkuangwuzhi,danrengbunengmanzushengchangxuyao,yincibixuzaisiliaozhongbuchongyidingliangdekuangwuzhi。muqiandabufensiliaokuangwuzhitianjiajideshiyonghaitingliuzaiwujiyanjieduan,eryiwujiyanxingshitianjiadekuangwuzhizaidongwutineiliyonglvjidi,rongyidaozhitianjialiangbuduanzengjia,duihuanjingdewuranyeyuelaiyueyanzhong。caiyongyoujiyanxingshidekuangwuzhitianjiajizekeyitigaokuangwuzhideshengwuliyonglv,jianshaoqizaisiliaozhongdetianjialiang,jianqingduihuanjingzaochengdewuran,congerdadaojiangdishengchanchengbendemude。
四、改善加工工藝。飼料加工工藝(如粉碎、混合、製粒以及膨化等)可影響水產動物對飼料營養成分的利用率,在生產水產飼料時,應該根據不同品種的生活習性、不同的發育階段以及不同的生理機能,采用相應的生產工藝,配製適合其攝食和消化的優質飼料。
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