期刊文献

Prevalence of digital disorders in zero-grazing dairy cows 收藏

零放牧奶牛数字失调的普遍存在
摘要
The prevalence of clinical and subclinical digital disorders in 2121 pure breed and crossbreed Holstein Friesian and Dutch Friesian dairy cows, housed all year round in free stalls, was determined in a cross-sectional study on 34 farms (average herd size 66 cows) in the Netherlands. At the time of claw trimming, in spring 1990, the following affections in the hindclaws were diagnosed (prevalence over all cows between brackets): dermatitis interdigitalis (83.1%), dermatitis digitalis (17.6%), phlegmona interdigitalis (0.4%), pododermatitis aseptice diffusa (4.5%), lesions (74.7%), ulceration at the typical place (5.5%) and at the white line (4.5%), widening of the white line (7.6%) and cavity in the sole (4.9%). A high prevalence of the subclinical digital disorders in zero-grazing dairy cows was found. Only 1.2% of the cows was clinically lame. Differences between herds were considerable. Herd prevalences ranged from 35 to nearly 100% for dermatitis interdigitalis and from 0% (4 farms) to 50% for dermatitis digitalis. On five farms phlegmona interdigitalis was found (totalling 9 cows). Six farms were free from typical solar ulcers. Cows in the second month of lactation tend to have the highest prevalences for most of the affections. Prevalences of most affections, if not significant, tend to increase with parity. For dermatitis digitalis and laminitis the opposite tendency was found. Heifers had the highest prevalences for dermatitis digitalis and pododermatitis aseptice diffusa.
摘要译文
2121纯种和杂交荷斯坦弗里斯兰奶牛和荷兰弗里斯奶牛的临床和亚临床数字疾病的流行,全年都在自由摊位饲养,通过对荷兰34个农场(平均牧群规模为66头奶牛)的横断面研究确定。爪修剪时,1990年春天,诊断出下颌后遗症(括号内所有奶牛的患病率):interdigitalis(83.1%),洋地黄炎(17.6%),痰湿痰(0.4%),皮肤炎性皮炎(4.5%),病变(74.7%),典型部位溃疡(5.5%)和白线(4.5%),白线扩大(7.6%)和鞋底腔(4.9%) )。在零放牧奶牛中发现了亚临床数字疾病的高患病率。只有1.2%的奶牛临床上有跛脚。畜群之间的差异很大。对于干燥性皮炎,羊群患病率从35%到接近100%,从0%(4个农场)到50%用于洋地黄炎。在五个农场发现了phlegmona interdigitalis(总共9头奶牛)。六个农场没有典型的太阳溃疡。哺乳期第二个月的奶牛往往是大多数情感的最高患病率。大多数感情的患病率,如果不显着,往往会随着平价增加。对于洋地黄炎和蹄叶炎,发现了相反的趋势。小母牛患有洋地黄性皮炎和皮肤炎性白斑病的患病率最高。
M.C.J.Smits[a];K.Frankena[b];J.H.M.Metz[a];J.P.T.M.Noordhuizen[b];. Prevalence of digital disorders in zero-grazing dairy cows[J]. Livestock Production Science, 1992,32(3): 231-244