University of Khartoum

The Effect of Parity Order and Colostral Days on the Chemical Composition of Bovine Colostrum

The Effect of Parity Order and Colostral Days on the Chemical Composition of Bovine Colostrum

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Title: The Effect of Parity Order and Colostral Days on the Chemical Composition of Bovine Colostrum
Author: Husien, Mohammed
Abstract: The present study was carried out at the University of Khartoum Dairy Farm, located in Khartoum North (Shambat) on the Eastern Bank of the River Nile. Twenty cows were allotted to four groups according to their parity number of 1st parity, 3rd parity, 5th parity and over 5th parity. Colostrum samples were collected for the five colostral days and analyzed by using conventional method to investigate protein, total solid, fat and lactose. Immunoglobulin (Ig) concentration was also determined by the use of a colostrometer to assess colostrum quality and immunoglobulin concentrations. The result verified that the fat content showed a non consistent pattern between the different parties and postpartum colostral days. The other components including protein, total solids and Ig were significantly (p<0.05), higher on first day's samples compared to the subsequent four days of the colostral period. The lactose content on the other hand demonstrated a different pattern whereby the first day postpartum colostrum samples contained the lowest lactose which increased progressively during the five sampling days. The highest values of these components were obtained at the 3rd parity except for protein which recoded maximum value at the 5thparity. The overall mean of milk constituent were 3.62%, 15.45%, 6.65% and 2.43% for fat, total solid, protein and lactose respectively. The overall mean of immunoglobulin concentration obtained by the colostometer was 32.13mg/ml. The results confirmed that Ig concentration increase with advancing parities, the highest Ig concentration was evident in colostrum of 3rd parity cows. Day one of the colostral period contained significantly (p<0.05) the highest Ig concentration which decreased rapidly in the subsequent colostral days suggesting the importance of feeding colostrums during the first 24hr postpartum. Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. The result of the present study documented the superiority of the first day colostrum for calf feeding compared to other colostral days. The result also authenticated that the highest quality colostrum was obtained in the 3rd parity.
URI: http://khartoumspace.uofk.edu/handle/123456789/8790
Date: 2015-04-09


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