推荐回答(3个)
冬季由于气温低,昼短夜长,母鸡产蛋少甚至停产。因此,冬季对蛋鸡饲养主要注意以下几点:
(1)做好防寒保温、防湿工作 低温对蛋鸡的健康和产蛋都有很大影响。例如,鸡舍温度低于7℃时,产蛋量减少,饲料消耗增加,舍内湿度也增加。当温度低于0℃时,还会使鸡冠冻裂。因此,在冬季做好防寒保温工作,使鸡舍温度控制在13~16℃,是提高蛋鸡产蛋量的关键。
具体措施有:①就地取材,设防寒棚。可用木杆、树条、板皮等材料,搭设防寒棚,上面铺上油毡纸或塑料布、牛皮纸等;然后,在塑料布或纸上铺10厘米厚的锯木屑或稻壳,掺上生石灰用来防鼠防虫。②加强鸡舍检修:糊严门窗、天棚,降低通风量,特别是杜绝贼风的侵袭。③在鸡舍四周或北面加防风障。④及时清除鸡粪,加厚垫料,保持干燥。⑤有条件的鸡舍,可设置取暖设备。
(2)补充光照 冬季日照时间渐短,如不注意补充光照,一般养在开放式鸡舍的当年秋季开产的母鸡,往往会推迟产蛋高峰;而准备淘汰的老母鸡又会因光照时间渐短而提前换羽,这样都会降低产蛋量。因此,对开放式鸡舍,一般在9月下旬开始至翌年3月底止,应根据当地日出日落时刻表,计算出每天的日照时数。自然光照不够时,应增加人工光照,每天补到14~16小时。
具体措施有3种:①早晨补:就是在清晨天明之前开灯补充光照。②晚上补:就是在晚上日落后开灯补充光照。③早晚补:天明之前和日落之后开灯补充光照。前两种方法虽然每天开灯各一次,但要随着自然光照时间的变化调整开、关灯时间,一是麻烦,二是容易造成光照时间不稳定。第三种方法,每天5点开灯至天亮,晚上开灯至19点,每天开灯时间可以固定不变,较为方便、准确。
人工补充光照的光源以白炽灯为好,光照强度不能太大,以防强光刺激鸡体而使鸡体疲劳、产生恶癖等。一般控制在 5~10勒克斯。例如,15~20平方米的鸡舍,将一盏40瓦的灯泡悬挂于2米高处。
(3)适当调整日粮配方 首先,适当增加能量饲料,使每千克日粮代谢能达11.72~11.92兆焦,以增强母鸡御寒能力;其次,补充各种维生素添加剂,弥补冬季青饲料不足;再次,要合理安排喂料次数,晚饲前可适当增喂一次颗粒料,可以防寒,增加产蛋量。
(4)加强管理 一是鸡群迟放早关,防止在户外受寒或冻冠;喂料要定时定量,饲料不能突变,不喂霉变饲料。二是注意饮水温度,冬季切忌用带冰碴的水;有条件时,冬季饮水可用温水,且应防止蛋鸡羽毛淋湿。三是注意鸡舍内的通风换气,防止二氧化碳、氨气、硫化氢等有害气体的产生和蓄积,保持鸡舍空气新鲜,相对湿度控制在50%~55%。
提高鸡产蛋的方法:
1、延长光照时间,最少16小时。
2、控制好鸡舍内的温湿度,温度13~23℃,湿度50%~55%为宜。
3、平养密度以5只/m2为宜,笼养以不超过10只/m2为宜。
4、使用好的中草药【吉旦多】补充气血、促进生殖机能,提高产蛋量。
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