Effect of Some Factors on Colostrum composition of Friesian Cows in Egypt

Elmoghazy, Mostafa Maher; -Ahmed, Mohamed El-Sayed Sayed; Khattab, Rasheda Abd Elhak; Abu El-Naser, Ibrahim Atta

doi:10.21608/djas.2026.454564

Effect of Some Factors on Colostrum composition of Friesian Cows in Egypt

Document Type : Original Article

Authors

¹ Animal, Poultry and Fish Production department, Faculty of Agriculture, Damietta University, Egypt

² Animal Production Research Institute, Agricultural Research Center, Dokki, Giza, Egypt

10.21608/djas.2026.454564

Abstract

This study aimed to investigate the factors affecting composition of colostrum. This work was carried out at El-Karada farm belonging to Animal Production Research Institute. The means for percentages of fat (F%), protein (P%), lactose (Lac%), solid nonfat (SNF %) and total solids (TS%) were 6.27±0.20, 14.04±0.44, 2.7±0.12, 19.69±0.57 and 25.92±0.69, respectively. Parity had highly significant effect on above studied traits, which the highest of colostrum composition were in first lactation. Also, season of calving was highly significant effect on F %, P%, SNF % and TS%. The opposite is true for effect of season of calving on Lac%. Likewise, the postpartum time has highly significant effect on aforementioned traits as postpartum time increases F%, P%, SNF% and TS% decrease, vice versa for Lac%. Therefore, it is important to quickly give newborn calves colostrum in order to increase the speed of benefit and raise the immunity of newborn Friesian calves

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