Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Munyaneza Napoleon

Scholastic degree

Academic rank

Honorary rank

Organization, job position

Cadi Ayyad University
   

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Email

munyaneza305@gmail.com


Articles count: 1

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USING MILK UREA CONCENTRATION AS STRATEGY TO IMPROVE THE EFFICIENCY OF NITROGEN USE AND REDUCING NITROGEN LOSSES IN COMMERCIAL DAIRY HERDS

abstract 1491905032 issue 149 pp. 138 – 148 31.05.2019 ru 62
This prospective study was conducted on 10 commercial dairy herds, over one year on milk urea monitoring, determination of diets characteristics effects on MU concentration and on assessment of MU concentrations as a predictor of N utilization and urinary N excretion. Milk samples were collected twice every month and analyzed for urea concentration using a colorimetric procedure. Representative feed samples were also collected on the same day of milk collection. Feed samples were characterized and their concentrations of protein digestible in the intestine and net energy for lactation were calculated according to the French system as well as PDI requirements. Average of milk urea concentrations range is 25.0 - 32.0 mg/dl. A significant positive association (p
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