饲养管理-降低断奶前死亡率

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1、PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™降低断奶前仔猪死亡率的方法PIC中国公司ACompanyPWYPICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebe

2、tterporkpeople™•每头母猪每年所能提供的断奶仔猪数---衡量一个猪场总体效益(利润)的一个最重要指标•PWY=年产窝数*窝均产仔猪数*断奶前成活率/母猪数ACompany年产窝数PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•母猪一年中所产窝数可以通过提高受胎率、缩短断奶至再次配种的间隔时间和采用早期

3、断奶方法(减少NPD)来提高ACompany窝均产仔数PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•窝产仔数可以通过杂交、人工授精、双(多)重配种以及维持母猪群中合理的胎次结构等途径来实现ACompany断奶前成活率PICChina•Thebetterporkpeople™•PICChina•Thebetterp

4、orkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•断奶前成活率的提高是见效快、最容易产生直接利润的途径•成绩的提高与员工的努力程度和责任心关系密切ACompany不同研究者对不同猪场断奶前仔PICChina•Thebetterporkpeople™•PICChina猪死亡率的调查结果•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebe

5、tterporkpeople™死亡率(%)死胎(%)Sharpe,196621.44.2English,196924.47.9Fahmyetal.,197123.67.2Lemanetal.,197219.57.2Neilsonetal.,197417.85.9Glastonbury,197614.35.8Spiceretal.,198611.38.3MLC,198911.15.4资料引自Hughes,1992年ACompany仔猪死亡分析PICChina•Thebetterporkpeople™•PI

6、CChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™ACompany仔猪死亡分析PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•母猪的挤压、寒冷、饥饿、虚弱或疾病等因素单独或综合而造成•死亡主要

7、集中在出生后的头几天，因此，在出生后的最初几天多加关照，就可能降低这一损失ACompany努力方向PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™降低死胎通过改善仔猪的途径来降低断奶前仔猪死亡率通过改善母猪来降低断奶前仔猪成活率通过改善环境来减少断奶前仔猪的死亡率ACompany降低死胎PICChina•Thebet

8、terporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•PICChina•Thebetterporkpeople™•大多数死胎仔猪在分娩的时候仍处于存活状态，这部分损失也被作为断奶前死亡而加以统计•分娩期间仔猪死亡的原因如果不完全是，但也至少大部分是因窒息而造成（脐带损坏或断裂）,分娩拖延的时间越长越危险•这些损失对于生产来说，是不能够接受的ACo