1、gaohaofangshujiangwen。xiajisiyangroujizuiyaojindeshiyaozuohaofangshujiangwengongzuo。shouxiansheneitongfengyaohao,nengdakaidemenchuangkequanbudakai,danxuzaimenchuangshangjiatiesiwang,yifangshouhai。qici,menchuangshangyuanqiangshezheyangshebei,jiyouliyureqidesanfa,bimianyangguangdezhishe,younengfangzhileizhenyuqinxi。youtiaojiande,zhongwucaiyongdonglitongfeng,xiajishiwenzuihaonengbaochizai28℃以下,以利雞的生長。
2、選擇適宜密度。7-14日齡30-25隻/平方米;21-28日齡25-15隻/平方米;35日齡至出欄15-10隻/平方米。每群以300隻為宜,群與群間用隔柵欄隔開,以利於舍內空氣流通。
3、巧調日糧結構。試驗證明,在25℃以上時,雞舍溫度每升高1℃,雞采食量就下降1.6%,siliaoliyonglvsuizhijiangdi。yiner,yingduiriliangyingyanghezuchengjinxingshidangtiaozheng,shiriliangweichishiyideyingyangshuiping,yimibuyougaowenyingjiyinqiyangfenshequliangdebuzu。weilemanzuroujishengchangfayudexuyao,dadaoyuqitizhong,kezairiliangzhongtigaodanbaizhishuiping10-15%,bingyongzhiwudanbaizhidaitidongwudanbaizhi,yijianshaojicaishinigan,zengjiariliangzhongduoweisuhanliang。tongshi,kehuanyongkelisiliao,tigaoshikouxing,zengjiacaishiliang,congertigaojidezongsheruyingyangliang。xiatian,jishiyujianruo,zhongwuyanreshikeduoweigeixiguapi、塊根、青菜之類的青綠多汁飼料,既解渴又降溫,有利於雞的休息。為提高雞的采食量,可采用喂低鈣飼料,單獨補充骨粒、貝殼粒,任雞自由采食。另外,還可選用安全有效的調味劑。
4、改變喂養方法。夏季天氣炎熱時,可采用夜間喂料,每晚10時到次日晨6時是最涼爽時間,有利於雞采食,而白天則讓雞休息。其方法是:適當調亮燈光,增加興奮性,夜喂4-5次,並通過振動料桶,驅趕雞群運動,以保持雞旺盛的食欲。
5、添加應激藥物。為避免或降低高溫等因素引起肉雞應激反應,可在飼料或飲水中添加一些有防治作用的藥物。如在飼料中添加0.25%檸檬酸,可緩衝肉雞體內血液堿性造成的危害,從而可提高肉雞在熱應激狀態下的日增重。在飼料中添加0.05%deesipilin,nengxianzhudijianqingreyingji,tigaoshengchanxingneng。juziliaojieshao,zaisiliaozhongtianjiajiaomugehuobidingsuange,yeyoutigaoroujizaigaowenhuanjingtiaojianxiadeshengchanxingnenghemianyilidezuoyong。ciwai,yekexuanyongyixiejuyouqingrejiedu、抗菌消炎或增強免疫機能的中草藥,如金銀花、菊花、蒲公英等。
6、供給充足飲水。炎熱天飲水時間長,會影響肉雞生長。因此,要設置足夠的水槽,水溫保持在10℃左右。在三伏天裏,每天上午10時至下午5時要每2小時換水1次,每天刷洗消毒飲水器具1次,保證供給充足清潔飲水。要保持雞舍內外排水暢通,舍內清潔幹燥。
7、適當加喂青飼料。在夏季飼養肉雞,飼料是否新鮮,對能否養好肉用仔雞關係較大,特別是采用濕料喂雞的,更應注意飼料是否腐敗、bianzhi,yingyanjinsiweibianzhisiliao,yidingyaoxianbanxianwei。xiajiruweiganfenliao,youyuqiwengao,jiquncaishikouweicha,keyishidangduoweiyixieduozhisiliaoheqinglvsiliao,jikejieyizengjiashiyu,youkeyibuchongweishengsubuzu,danweiliangyibanbunengchaoguoriliangde1/3。
8、做zuo好hao疾ji病bing預yu防fang。要yao做zuo好hao環huan境jing衛wei生sheng工gong作zuo,清qing除chu蚊wen蠅ying孳zi生sheng地di,減jian少shao傳chuan染ran病bing的de媒mei介jie,食shi槽cao要yao經jing常chang洗xi刷shua,定ding期qi消xiao毒du,保bao證zheng雞ji群qun健jian康kang。要yao選xuan用yong幹gan燥zao清qing潔jie、吸濕性好、無毒、無刺激、無黴變的鬆軟墊料,如鋸末、稻殼等;墊料一定要保持幹燥、鬆軟,要定期篩去糞便,並勤曬、勤qin換huan,使shi之zhi無wu不bu良liang氣qi味wei。如ru果guo舍she內nei濕shi度du過guo高gao,就jiu會hui抑yi製zhi體ti內nei水shui分fen散san發fa,影ying響xiang新xin陳chen代dai謝xie,容rong易yi使shi病bing菌jun繁fan殖zhi,誘you發fa疾ji病bing,不bu能neng保bao證zheng雞ji群qun的de健jian康kang生sheng長chang。嚴yan格ge執zhi行xing衛wei生sheng防fang疫yi製zhi度du,按an免mian疫yi程cheng序xu接jie種zhong疫yi苗miao;盡力保持雞舍環境衛生,並每星期至少消毒1次。注意選用對雞危害小的藥物,及時消滅蚊蠅等害蟲。加強對雞群的觀察,注意雞群精神狀態、行為表現、采食情況及糞便形態,發現異常及時采取相應措施。
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