京津地区规模化场奶牛蹄病影响因素的初步调查研究.pdf

摘要 为了调查当前京津地区规模化牛场影响奶牛蹄病的因素，为该地区制定综合防治措施提供依 分析奶牛蹄病发生特点及蹄病与各影响因素之间关系的基础上，制定具有针对性的综合防治措施 并实施．调查发现：奶牛蹄病平均发病率为8％。指(趾)间皮肤增殖、蹄底溃疡、自线病和疣 性皮炎高于其他蹄病；后蹄发病高于前蹄，前蹄内侧指高于外侧指，后蹄外侧趾高于内侧趾；单 蹄发病高丁：多蹄发病；单发蹄病高f并发蹄病。发病率总体上随年龄、胎次、产奶量增加而升高。 奶厅挤奶、牛床氏度过短和变形蹄会使发病率升高。蹄病可使产奶量降低．实施具有针对性的综 合防治措施，可使发病率降低，产奶量升高，2个月左右可恢复至正常水平。 关键词：奶牛，蹄病，影响因素，综合防治 Abstract scalecowfarmsinthe areasof and to evidenceforthesearesstoestablish control BeijingTianjin,andprovide integrate of HolsteinCOWS4 scalecowfarmsintheseareaswere betweenJan me∞uRs，2599 large investigated 2005and 2006．Pertinentcontrolmeasureswereestablishedbasedon Aug in．grate analyzing occurrencefeamresoffootdiseasesof COWSandrelationsbccw∞,nfootdiseasesandinfluential dairy is into resultsare：The incidenceoffootdiseasesof COWS factors,and average dairy put practice．The line anddermatitis am than skin ulcers．whitedisease velTucosa 8％．Interdigitalhyperplasia’sole higher ofhindhoofsare thananterior than otherfoot incidence diseases；The higher hoofs，innerdigitshigher outer inanterior thaninner inhind hoofis digits hoofs，outerdigitshigher digits hoofs；Singlehigher than footdiseaseis than footdiseases．Asawhole，the hoofs；Single hiigher complicating multiple theincrease ranksandmilk in