| ABSTRACT: This study aimed to evaluate the economic efficiency of DD treatment on milk yield in lame cows suffering from DD. A total of 33 Holstein dairy cows with DD were included in the study. The milk yields were assessed as (1st); beginning milk production (BMP), (2nd); peak milk production before the diagnosis (PMPBD), (3rd); diagnosis day milk production (DMP), and (4th); post-treatment milk production (TMP). In the first stage of analyses, using the E-views equity test of means program, cows were classified into three groups for diagnosis time of DD according to the day in milk (DIM) (Group 1: 0 ≤ DIM ≤ 50, Group 2: 51 ≤ DIM ≤ 100, and Group 3: 101 ≤ DIM ≤ 150). Analysis of variance (ANOVA F-Test) and the Welch F-Test were conducted to compare the... |
