豬在高溫時對水的需要量大,但豬又有一個懶惰的毛病,所以,豬必須在每次飲水時喝進足夠多的水。比如一頭哺乳母豬每天要消耗30-50升水,要在短時間內喝進這樣多的水,就應該保持每分鍾1.5-2.0升的水流速度,否則會出現飲水量不足。提高水流速度的辦法,除了使用優質的飲水器外,還要考慮水的壓力;如果供水係統的水壓不足,可考慮在溫度高的時間段內使用加壓泵,以確保母豬能喝進足夠的水。
二、小豬保溫箱的作用
小豬保溫箱對於哺乳仔豬成活率的提高起到了非常大的作用。但在高溫季節,保溫箱的作用到底多大,卻是需要考慮的;如果注意觀察,夏季有許多小豬並不在保溫箱中,而是不論白天還是夜間都在保溫箱外躺臥,保溫箱成了擺設;但dan保bao溫wen箱xiang的de存cun在zai,卻que成cheng了le影ying響xiang舍she內nei通tong風feng的de屏ping障zhang,對dui怕pa熱re的de母mu豬zhu十shi分fen不bu利li。另ling外wai,由you於yu小xiao豬zhu不bu進jin保bao溫wen箱xiang,而er保bao溫wen箱xiang卻que同tong樣yang占zhan據ju著zhe相xiang當dang大da的de麵mian積ji,使shi箱xiang外wai的de區qu域yu變bian小xiao,經jing常chang出chu現xian母mu豬zhu壓ya小xiao豬zhu的de現xian象xiang。
針zhen對dui這zhe種zhong情qing況kuang,在zai高gao溫wen季ji節jie,把ba保bao溫wen箱xiang撤che掉diao,僅jin留liu下xia鋪pu板ban,或huo者zhe在zai靠kao近jin欄lan杆gan角jiao上shang設she一yi個ge擋dang風feng的de裝zhuang置zhi,小xiao豬zhu在zai這zhe樣yang的de區qu域yu遠yuan勝sheng於yu保bao溫wen箱xiang中zhong,既ji節jie省sheng了le網wang床chuang麵mian積ji,也ye解jie決jue了le小xiao豬zhu保bao溫wen的de問wen題ti。(高溫季節的夜間,舍內溫度也能達到25℃左右,再加上鋪板的保溫功能,完全可以使小豬處於合適的溫度區域。)
三、風扇的使用
我們都知道風速對豬體散熱的效果是相當不錯的,效果好的前題是風必須吹到豬身上;我們經常看到給豬使用了風扇,但豬仍然大口喘氣,原因是風並沒有吹到豬身上;這zhe種zhong情qing況kuang在zai使shi用yong吊diao扇shan時shi經jing常chang遇yu到dao,特te別bie是shi定ding位wei欄lan內nei的de哺bu乳ru母mu豬zhu,除chu非fei一yi頭tou母mu豬zhu上shang方fang安an裝zhuang一yi台tai吊diao扇shan,幾ji頭tou母mu豬zhu共gong用yong一yi台tai吊diao扇shan的de效xiao果guo是shi相xiang當dang差cha的de。考kao慮lv到dao產chan房fang中zhong小xiao豬zhu怕pa冷leng,哺bu乳ru母mu豬zhu的de風feng扇shan最zui好hao是shi固gu定ding位wei置zhi,既ji能neng吹chui到dao母mu豬zhu,但dan還hai不bu能neng吹chui到dao仔zai豬zhu。
溫度特別高的時段,風扇對公豬的降溫效果是很差的,因為公豬睾丸需要的溫度比身體要低2℃-3℃,也ye就jiu是shi說shuo豬zhu體ti尚shang能neng承cheng受shou的de溫wen度du,睾gao丸wan內nei的de精jing子zi已yi經jing承cheng受shou不bu了le,所suo以yi經jing常chang會hui看kan到dao公gong豬zhu一yi切qie正zheng常chang,但dan采cai出chu的de精jing子zi活huo力li很hen差cha。所suo以yi,溫wen度du高gao的de時shi間jian,公gong豬zhu采cai用yong風feng扇shan降jiang溫wen的de效xiao果guo是shi很hen差cha的de,必bi須xu考kao慮lv降jiang低di環huan境jing溫wen度du,或huo者zhe局ju部bu降jiang低di睾gao丸wan溫wen度du的de辦ban法fa。
duihuaiyunmuzhu,tebieshiweiyudingweilandemuzhu,yinweimidutaida,zhutizhouweiziranhuixingchengyigegaowenquyu,suoyiwomenhuiguanchadaozhongwugeidingweilanmuzhushuixishihuichuxianreqitengtengdechangmian,yejiushishuozhutizhouweidewenduyaoyuangaoyuzhushepingjunwendu,zheshishiyongfengshanjiangzhutizhouweidereqidaizou,duizhudejiangwenxiaoguoshifeichanghaode;在豬舍一端安裝一台大風扇,在另一端開設進風口,使舍內形成穿堂風,如果再結合滴水降溫,對懷孕母豬的降溫效果非常好。
四、外降溫與內降溫
外降溫是降低豬體環境的溫度,內降溫是降低豬體的溫度;xiangbierzhexiaoguo,neijiangwendexiaoguobiwaijiangwenyaohao,yuanyinshiyinweineijiangwenkeyishitineiduoyudereliangshifangchuqu。duizhulaishuo,neijiangwendebanfayouliangge,yishitongguocaishihuoyinshui,diwendesiliaoheyinshuibianchenggaowendefenniao,huidaizoudaliangreliang;rangzhuduoheshuichulejiangdishuiwenwai,haiyaozhuyixiajisiliaozhongdeshiyannongduyaojiada。neijiangwendediergebanfashitongguoxijinganzaodekongqi,bianchengshirundekongqi,tongguotineishuifenzhengfadaizoutire,zheyidianshiwomenzuirongyihushide,yeshifeichangzhongyaodedifang。zhelixuyaozhuyideshixiruyuhuchuqitizhongshuizhengqidenongducha,ruguoxiruyuhuchudeqitizhongshuizhengqinongduyiyang,najiumeiyoujiangwenzuoyong;而如果二者濃度差很大,那降溫效果就會很好;保證讓豬吸進幹燥的空氣是內降溫的重要條件,所以我們經常會遇到氣溫很高但濕度小時,母豬不會熱死;而氣溫並不是很高,但濕度很大時母豬會熱死;最主要的原因是內降溫不起作用的緣故。
五、水降溫帶來的潮濕
前麵說了內降溫時需要幹燥的空氣,這裏就出現了一個矛盾,因為給豬降溫經常會使用水;我wo認ren為wei,幹gan燥zao的de環huan境jing更geng勝sheng於yu大da量liang的de用yong水shui。針zhen對dui不bu同tong的de豬zhu舍she,所suo采cai用yong的de措cuo施shi也ye是shi有you區qu別bie的de,在zai哺bu乳ru豬zhu舍she,不bu論lun氣qi溫wen多duo高gao,都dou盡jin量liang不bu使shi用yong水shui降jiang溫wen,特te別bie是shi地di麵mian衝chong洗xi;yinweidimianchongxihuizanshijiangdizhushewendu,danyinweishidudaerjiangdizhuneijiangwendexiaoguoqueshichangshijiande,yinweishuibuhuihenkuaizhengfadiao,zhushejiuhuichangshijianbaochigaoshiduzhuangtai;另外,哺乳仔豬是最怕潮濕的,潮濕會增大仔豬腹瀉發生的可能。
采用水降溫時,要避開哺乳豬舍和保育豬舍;zaiqitazhusheshiyongshi,zuihaojiehetongfengjiangwen,yinweishuijiangwenshishuifenzhengfashixizoulekongqizhongdereliang,tongfengkeyijiangsheneichanshengdeshuizhengqidaizou,zheyanghuizengjiashuifenzhengfadeshuliang,jiangwenxiaoguogenghao。
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