DefinePK

Abstract

ABSTRACT


Background and Objective A favorable characteristic of goats is their prolific breeding however, non-optimal husbandry practices can hamper the reproductive performance of goats. This study aimed to determine the fertility of Etawah grade does based on Milk Urea Nitrogen MUN levels and explored the factors affecting MUN levels. Materials and Methods Forty does with a body condition score of 2.0-3.0, in their second lactation, milked once a day were used in this study. They had ad libitum access to concentrates and forage legumes and jackfruit leaves. Milk was collected every morning during two estrous cycles. The MUN was measured by using urea analysis kit urea FS. Feed composition was analyzed to determine the Crude Protein CP level and fertility was evaluated using postpartum estrus PPE, Services per Conception SC and Days Open DO. The relationship between reproduction data and MUN was analyzed using correlation analysis. Results The average MUN was 33.753.42 mg dL1501 and the average PPE, DO and SC were 64.806.34 days, 120.1011.4 days and 1.680.34, respectively. The MUN was negatively correlated with PPE, SC and DO. Etawah grade does with a high MUN 37.73 mg dL1501 exhibited long PPE 72 days and DO 133 days periods, as well as high SC 2.0. In contrast, Etawah grade does with low MUN levels had low PPE periods, DO and SC. Conclusion It was concluded that the MUN level was inversely related to the fertility of Etawah grade does.

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