gaoyangyufeishiliyonggaoyangzaoqishengchangkuaidetedian,zaijiaoduandeshijiannei,yongjinkenengshaodesiliaohuodejinkenenggaoderizengzhong,bingshengchanchuyouzhideyangrou,suoduanchulanshijian,zengjiajingjixiaoyi。gaoyangyufeideguanjianjishuruxia:
一、利用肉用品種及其雜交羊
任何品種的綿、山羊都可以育肥屠宰作肉用,但不同品種類型產肉性能和育肥性能有很大差別。優秀肉用綿、山羊品種的共同特點是早熟、生長快、飼料報酬高、繁殖力強、胴體品質好、產肉量多。而我國大多數地方綿、山shan羊yang品pin種zhong通tong常chang表biao現xian為wei生sheng長chang較jiao慢man,體ti型xing欠qian豐feng滿man,產chan肉rou量liang低di,不bu適shi應ying市shi場chang需xu要yao。因yin此ci羔gao羊yang育yu肥fei盡jin可ke能neng利li用yong國guo外wai引yin進jin的de肉rou用yong品pin種zhong羊yang和he我wo國guo的de地di方fang良liang種zhong進jin行xing雜za交jiao改gai良liang,羔gao羊yang當dang年nian育yu肥fei出chu欄lan,既ji利li用yong了le雜za種zhong優you勢shi,也ye保bao存cun了le當dang地di品pin種zhong的de優you良liang特te性xing,這zhe樣yang育yu肥fei羊yang有you良liang好hao的de增zeng重zhong潛qian力li,飼si料liao報bao酬chou高gao。
二、科學搭配日糧,生產優質羊肉
羔羊正處於生長發育階段,增重的主要部分是肌肉、neizangheguge,suoyisiliaozhongdanbaizhidehanliangyinggaigaoyixie。lingwaigaoyangxiaohuajinengburuchengnianyangwanshan,yinerduisiliaodepinzhiyaoqiujiaogao。yibanyufeiyangriliangzhongdeculiaoyingzhan40%-60%,即使到育肥後期,也不應低於30%,或粗纖維含量不低於8%-10%.在zai上shang述shu的de飼si料liao條tiao件jian下xia,應ying盡jin量liang設she法fa改gai善shan粗cu料liao品pin質zhi,提ti高gao羊yang對dui幹gan物wu質zhi的de采cai食shi量liang,從cong而er增zeng加jia日ri糧liang營ying養yang水shui平ping,而er不bu應ying單dan純chun追zhui求qiu增zeng加jia飼si喂wei精jing料liao的de數shu量liang。要yao快kuai速su育yu肥fei羔gao羊yang,就jiu應ying使shi其qi所suo給gei的de營ying養yang物wu質zhi高gao於yu維wei持chi正zheng常chang生sheng長chang發fa育yu的de需xu要yao。在zai不bu影ying響xiang正zheng常chang消xiao化hua的de前qian提ti下xia,飼si喂wei的de營ying養yang物wu質zhi越yue多duo,獲huo得de的de日ri增zeng重zhong就jiu越yue高gao,而er單dan位wei增zeng重zhong所suo耗hao費fei的de飼si料liao就jiu越yue少shao,並bing可ke提ti前qian出chu欄lan。若ruo希xi望wang得de到dao含han脂zhi肪fang少shao的de羊yang肉rou,育yu肥fei前qian期qi的de日ri糧liang中zhong能neng量liang不bu可ke太tai高gao,而er蛋dan白bai質zhi數shu量liang應ying充chong分fen滿man足zu,到dao育yu肥fei後hou期qi可ke再zai提ti高gao能neng量liang水shui平ping;反之,則會獲得脂肪多的羊肉。不同品種的肉羊,育肥期內對營養物質的需要量是有差異的。
三、羔羊早期斷奶,進行肥羔生產,縮短生產周期
利用羔羊幼齡期生長快、飼料報酬較高的生物特性,生產肥羔肉。羔羊最好在2-2.5月齡斷奶,羔羊斷奶後,進行短期育肥,育肥至5-6月齡即可出欄或屠宰,可加快羊群周轉,縮短生產周期,提高出欄率,從而降低生產成本,獲得最大經濟效益。
四、創造適宜的環境
環境溫度對育肥羊的營養需要和增重影響也很大。平均溫度低於7℃時shi,羊yang體ti產chan熱re量liang增zeng加jia,采cai食shi量liang也ye增zeng加jia,但dan由you於yu低di溫wen增zeng加jia熱re能neng散san失shi量liang,使shi飼si料liao的de增zeng重zhong效xiao率lv也ye隨sui之zhi降jiang低di。低di溫wen環huan境jing育yu肥fei的de肉rou羊yang應ying相xiang應ying增zeng加jia營ying養yang水shui平ping,才cai能neng維wei持chi較jiao高gao的de日ri增zeng重zhong,若ruo空kong氣qi濕shi度du高gao和he大da風feng天tian氣qi,更geng會hui加jia劇ju低di溫wen對dui羊yang的de不bu良liang影ying響xiang。氣qi溫wen高gao於yu32℃時,羊的呼吸和體溫隨氣溫而增高,采食量減少,過高時食欲下降甚至停食、liuxian,yanzhongshihuizhongshusiwang。gaowengaoshihuijiajuduiyangdeweihai,yufeihouqigaowenduiyangdeweihaigengda。lingwai,baochianjinghuanjinghejianshaoyangzhihuodong,keyishiyingyangwuzhixiaohaojianshao,congertigaoyufeixiaoguo。
五、合理利用羔羊預混料
gaoyangyuhunliaozhuyaobaokuoweiliangyuansuheweishengsudengtianjiaji,nengtigaosiliaoshikouxingheliyonglv,cujinyangdeshengchangfayu,gaishandaixiejineng,yufangjibing,fangzhisiliaozaizhucunqijianzhiliangxiajiang,gaijinroupinpinzhideng,zhengqueshiyonggaoyangyuhunliao,ketigaoyangyufeidejingjixiaoyi。
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