University of Khartoum

Blood Metabolites and Some Fertility Parameters in Dairy Cows Under Intensive Management System.

Blood Metabolites and Some Fertility Parameters in Dairy Cows Under Intensive Management System.

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Title: Blood Metabolites and Some Fertility Parameters in Dairy Cows Under Intensive Management System.
Author: Awad Ali Osman, Abd El Rahim
Abstract: Four dairy farms (1, 2, 3 and 4) using an intensive management system were selected. They are located 50 km south of Khartoum state in a semi-arid zone. The effect of management on some fertility parameters, blood metabolites and minerals were investigated. Changes in blood metabolites with stage of lactation were also monitored. Other parameters studied were body weight and body condition score at calving. The results revealed that days to first P4 rise after calving and number of services per conception (NSPC) were lower in the farms which kept cross-bred cows (Fresian X Zebu) compared to the pure Friesian farms. The pure Friesian cows showed heavier weights and less body score at calving compared to the crossbred cows. Blood metabolites reflected the nutritional status of the dairy cows under study, plasma total protein, albumin, globulin, urea and glucose did not show significant changes either between farms or in response to lactation stages. However, high levels of globulins might indicate inflammation due to some diseases such as mastitis, metritis and lameness. Plasma level of calcium and phosphorous did not change significantly either between farms or due to stages of lactation.
URI: http://khartoumspace.uofk.edu/handle/123456789/14074
Date: 2015-06-22


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