An evaluation of casein hydrolyzate in combination with antibiotic for bacterial cure and subsequent increase in milk yield in dairy cows

Table 2 Bacterial status (infected, noninfected, subclinical, clinical and cured) in Period 2 (experimental, following Nafpenzal DC + CNH at DCT) and Period 3 (control, following Nafpenzal DC)

¹ Uninfected quarter before drying-off and uninfected at parturition.
² New Infection, subclinical - Infection was detected during parturition and in the first 100 days in the new lactation: The same udders were uninfected before drying-off.
³ New Infection, clinical - Infection was detected during the first month after parturition and remained for the first 100 days in the new lactation: The same udders were uninfected before drying-off.
⁴Cure - Bacteria detected in the month preceding dry-off was not detected in the same udder during the first 100 days of lactation
⁵ Not Cured - The reciprocal of cured: Bacteria detected in given udders in the month preceding dry-off was also detected in the same udder during the first 100 days of the subsequent lactation.

ISSN: 1746-6148