Diaz J, Bodurov N
Vet Med Nauki. 1986;23(6):72-6.
Investigations were carried out under productional conditions with a total of 100 high-producing cows in lactation to disclose the effect of diseased hooves or hooves that had not been taken care of over the period in the stable as well as the effect of hoof trimming and treatment on the daily and monthly milk yield and the total losses associated with deformations and diseases in 20,980 cows. It was found that 'stable' hooves and disease processes developing in them and in the body as a whole lowered the milk yield by 3.3 l, on an average, per cow (4.5 l, respectively). Trimming of hooves and medical treatment were found to avoid the drop of the daily milk yield along with the recovering all losses and coming back to normal levels. Opportunely used treatment prevented the losses associated with live weight, lowered the percent of premature culling and emergency slaughter and reduced or fully ruled out the death cases. Economic losses could be kept to a minimum if the efforts described above ate coupled with periodic hoof trimming (at least twice a month).
在生产条件下，对总共100头高产泌乳奶牛进行了调查，以揭示患病蹄或在牛舍期间未得到护理的蹄的影响，以及蹄修剪和治疗对20980头奶牛的日泌乳量和月泌乳量以及与蹄变形和疾病相关的总损失的影响。结果发现，“正常”蹄及其内部和整个身体出现的疾病过程平均使每头奶牛的产奶量降低3.3升（分别为4.5升）。发现蹄修剪和药物治疗可避免日泌乳量下降，同时弥补所有损失并恢复到正常水平。适时进行治疗可防止与体重相关的损失，降低过早淘汰和紧急屠宰的比例，并减少或完全排除死亡病例。如果上述措施与定期蹄修剪（至少每月两次）相结合，经济损失可降至最低。
