【摘要】 <正> 奶牛隐性乳房炎是以泌乳机能紊乱,产奶量降低、发病率高、无临床症状,不易被人们所发现为特征的一种疾病。随着病情的发展,又易转变为临床型乳房炎,以至造所严重畜牧经济损失,危害性甚大。当前国内外学者们十分重视隐性乳房炎的诊断与防治。更多还原

【Abstract】 The submastis in dairy cows may be treated by He—Ne laser irradiated the specific area ol the dairy cows Irradiation was performed with He—Ne laser energy density 10.19j/cm~2 the result is cure rate 66.7% effective rate 89.4% This treatment method is simply, syely curative effect higher更多还原