青年鸡又称后备鸡，下面由渭南青年鸡给大家介绍其青年鸡的生理特点：

YI．QINGNIANJIDESHENGLITEDIAN

1．QINGNIANJIDETIZHONGHEJUNYUNDUSHIJUEDINGJIANGLAICHANDANZUIZHONGYAODEYINSU．TIZHONGDADEJIXIANKAICHAN，TONGYIPINZHONGDEJI，RUGUOJUNYUNDUBAOCHIYIZHI，KETONGSHIKAICHAN，CHANDANLVSHANGSHENGHENKUAI，2-3ZHOUNEIJIUDAGAOFENG．TIZHONGXIAODEJI，KAICHANWAN．TIZHIRUO，KANGBINGLICHA，CHANDANSHAO，CHANDANLVSHANGSHENGHUANMAN，SHENZHIWUCHANDANGAOFENG．GUOFEIJI，SHENTIFUDANZHONG，CHANDANXIAO，YEBUHUICHIJIU，JIDETIZHONGDAZHIZAI7-14ZHOULINGSHIYIJINGDINGXING，PIANSHOUJI，RUZHEISHITIZHONGRENGRANPIANXIAO，ZAIJIAQIANGYINGYANGYEWEISHIGUOWANLE，SUOYIYINGZHONGSHIYUCHENGJIQIANQIDEYINGYANGSHUIPINGHEGUANLIGONGZUO．

2．QINGNIANJIJUBEILETIWENZIKONGDIAOJIENENGLI，ERQIEXIAOHUANENGLIRIQUJIANQUAN，SHIYUWANGSHENG，CAISHILIANGZENGJIA，DUIGAILINDEXISHOUNENGLIBUDUANTIGAO．7-12ZHOUSHIGUGE，JIROU，NEIZANGSHENGZHANGZUIKUAIDESHIQI，13ZHOUZHIHOUYOUSHIFUQIANGZHIFANGZENGZHANGDEZHONGYAOSHIQI，GUODUODEZHIFANGHUIYINGXIANGJINHOUCHANDAN，YINCIZHEIDUANSHIQIDEYINGYANGJIYAOBAOZHENGKUAISUSHENGZHANGXUYAO，YOUYAOFANGZHIZHIFANGXUJISHIQIGUOFEI．

3．DUIWAIJIEDEFANYINGLINGMIN．DUISHENG，GUANG，SECAIHUOQITADONGWU，BUSHUXIDESIYANGYUANJINRUJISHEDOUNENGHENKUAIZUOCHUFANYING，SHENZHIZAOCHENGJINGQUN．

4．MIANYIQIGUANZHUJIANWANSHAN，MIANYIYINGDANENGLIZENGQIANG．YUCHENGQINEIYINGJINKENENGZUOHAOGELEIMIANYIJIEZHONGGONGZUO，FANGZHIZAICHANDANQIYINKANGTISHUIPINGDIHUOCANCHABUQIERZAICIJIEZHONGYIMIAO，FASHENGYINGJIERZAOCHENGSUNSHI．

5．生殖系统迅速发育．从12周龄生殖系统开始发育，18周龄则迅速发育．所以18周龄应逐步换成产前期蛋鸡料，补充一定数量的蛋白质和钙，促使卵巢，输卵管顺利发布并积累一定数量的骨钙，为顺利开产做准备．但过迟，过急换料的方式是不可取的．

WEINANSHIXINGYUANQINYEYOUXIANGONGSISHIYIJIAJIXIAOSHOU,PIFAWEIYITIDEDAXINGQINYEYOUXIANGONGSI,ZHUYINGCHANPINYOUWEINANDANJI,WEINANJIMIAO,WEINANQINGNIANJI,HUANYINGNINDEZIXUN,LIANXIDIANHUA：0913-2385026/0913-2388189