冬季保持舍(she)內溫度適(shi)宜,同時要做(zuo)好通風(feng)換氣(qi)工(gong)作,否則會嚴重影響肉鴨的(de)生長發(fa)育(yu)。
通風(feng)(feng)換(huan)氣(qi)(qi)(qi)(qi)應掌握的原則是:在能保證溫度的前提下,盡(jin)量通風(feng)(feng):早(zao)晚天氣(qi)(qi)(qi)(qi)冷時(shi)(shi)小敞通風(feng)(feng)口或不(bu)(bu)開,中(zhong)午時(shi)(shi)大(da)敞;有風(feng)(feng)時(shi)(shi)小敞,無(wu)風(feng)(feng)時(shi)(shi)大(da)敞,要循(xun)序漸(jian)進,有個過程,不(bu)(bu)能說通風(feng)(feng)時(shi)(shi)所有通風(feng)(feng)口一(yi)下全部打開,以致造成棚(peng)內(nei)環境變(bian)化巨大(da)。當(dang)進入鴨舍(she)感覺氣(qi)(qi)(qi)(qi)味刺鼻時(shi)(shi),敞開通風(feng)(feng)口,排出舍(she)內(nei)有害氣(qi)(qi)(qi)(qi)體(ti)(ti),讓新鮮空氣(qi)(qi)(qi)(qi)流入舍(she)內(nei),要注意通風(feng)(feng)換(huan)氣(qi)(qi)(qi)(qi)前要將舍(she)溫提高2-3℃,通風(feng)(feng)換(huan)氣(qi)(qi)(qi)(qi)時(shi)(shi)仍要生爐子。飼養前期以保溫為主,兼顧(gu)通風(feng)(feng);飼養后期以通風(feng)(feng)換(huan)氣(qi)(qi)(qi)(qi)為主,兼顧(gu)保溫。
具體做(zuo)法要根(gen)據風(feng)(feng)(feng)(feng)力(li)大(da)(da)小,天氣(qi)(qi)陰晴(qing),氣(qi)(qi)溫(wen)(wen)高低,日齡與健康狀況確定(ding)(ding)開(kai)啟通風(feng)(feng)(feng)(feng)口的(de)次數,大(da)(da)小和方向。一(yi)般情(qing)況下,根(gen)據日齡及健康情(qing)況,鴨舍南(nan)北(bei)(bei)面夜間(jian)封閉,白(bai)天無(wu)大(da)(da)風(feng)(feng)(feng)(feng)天氣(qi)(qi),可適當打開(kai)通風(feng)(feng)(feng)(feng)口用(yong)以通風(feng)(feng)(feng)(feng)換(huan)氣(qi)(qi)。隨著晝夜溫(wen)(wen)差(cha)變小,無(wu)大(da)(da)風(feng)(feng)(feng)(feng)天氣(qi)(qi)南(nan)北(bei)(bei)面可部分或全部打開(kai)。但通風(feng)(feng)(feng)(feng)口要由上往下放大(da)(da),這樣(yang)能保(bao)證空氣(qi)(qi)新鮮,同時有一(yi)個良好(hao)的(de)溫(wen)(wen)度環境。鴨舍南(nan)北(bei)(bei)面的(de)通風(feng)(feng)(feng)(feng)控制,可由掛塑料布的(de)鐵絲定(ding)(ding)位(wei)出風(feng)(feng)(feng)(feng)口的(de)大(da)(da)小。這樣(yang)“拉鐵絲上圍子”的(de)做(zuo)法也解決了(le)保(bao)溫(wen)(wen)與通風(feng)(feng)(feng)(feng)換(huan)氣(qi)(qi)二者之間(jian)的(de)矛盾。