鹅多少天出壳 鹅蛋31天了还不出壳孵化周期及孵化技巧?


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展开全部孵化鹅蛋需要选择生长健康、母性好的母鹅,同时也需要选择受精成功、外表光滑的鹅蛋,并且在养护的过程中需要为母鹅提供一个舒适的孵化场所,也需要为其提供一些营养丰富的食物以及清水,保证顺利的孵化成功。温度是孵化过程中保证胚胎正常发育的主要条件,孵化初期温度要求保持在37.8度,出壳期维持在37.3度就可以。如果孵化初期的温度过高或者过低,很容易引起蛋内胚胎的死亡。偶尔的温度稍低时间长了同样会引起发育不良,这就是导致后面最容易出现畸形苗的原因。鹅蛋需要30天左右才能孵化。在孵化期需要注意以下几个方面:第1~10天,隔天离窝1次,头几次需人为抓鹅离巢,建立条件反射后母鹅会自动离巢。每次离巢时间为30一40分钟,让其采食饲料,然后赶入水中戏水、饮水等,并让其采食青饲料,待鹅排粪、羽毛干后,赶回窝内继续孵化。母鹅离窝期间,蛋表面上应覆盖薄棉絮等保温。第11一27天,改为每日上午离窝1次、每次喂食、活动时间可延长到40一60分钟,雨天不能下水。第28--31天,为防止在出壳前因鹅体重大而踩破或压坏胚蛋,应及时把胚蛋移到出雏竹筐中,并盖以适当的覆盖物保温。强制母鹅离窝,随群放牧,加强补饲。再孵化过程中,如果雏鹅啄壳较久而未能出壳,可进行人工助产,但一定要在尿囊枯萎时进行,把雏鹅的头部拉出壳外,助产时如有出血现象,应立即停止。',getTip:function(t,e){return t.renderTip(e.getAttribute(t.triangularSign),e.getAttribute("jubao"))},getILeft:function(t,e){return t.left+e.offsetWidth/2-e.tip.offsetWidth/2},getSHtml:function(t,e,n){return t.tpl.replace(/\{\{#href\}\}/g,e).replace(/\{\{#jubao\}\}/g,n)}},baobiao:{triangularSign:"data-baobiao",tpl:'{{#baobiao_text}}',getTip:function(t,e){return t.renderTip(e.getAttribute(t.triangularSign))},getILeft:function(t,e){return t.left-21},getSHtml:function(t,e,n){return t.tpl.replace(/\{\{#baobiao_text\}\}/g,e)}}};function l(t){return this.type=t.type
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