chunjiyangzhiyihuanchanzuibing。yuanyinshiyangzhijingguomanchangdedongtian,tineiquefayingyang,tikuangjiaocha,turanyouyounenduozhideqingcaohou,gandaotebiedexiangtiankekou。danchuchunmucaogangfayafanqing,yangyangcaolianghenshao,chibubaoduzi。yangningkenezheduziyebuzaichigancaohehuangcaole。yinci,jiufashenglechanzuibing。cibingkeshiyangyinchangqijieerdiaobiaoshouruo,yingxiangshengchanghejiankang。
預防方法:一是早春先躲青,盡量避免在幼嫩的青草地放牧,待青草長到10厘米左右時,估計放牧羊能吃飽了再開始跑青,早春要有意地讓羊啃幹草和黃草;二是跑青要逐漸過渡。開始可先放幹草和黃草,每天放2~3小時的青草,逐漸增加放青草的時間,直到整天放牧青草。時間大約經過10~15天的轉變期;三是采用一條鞭的放牧法,就是每天放生場和生坡,這樣的草場和山坡草量足,幹草、黃草、青草都很新鮮,羊喜歡采食,吃得好,吃得飽。
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