Effects of milk containing egg and biotin on performance, blood parameters, ferritin, IgG and digestibility of Holestein calves

To investigate the nutritive value of egg and the possible use of waste eggs and spray-dried whole egg, as alternative protein source in neonatal calves, an experiment was done using twenty female and male Holstein calves. The treatments were: 1) milk without egg (control), 2) milk contain 7.5% raw egg, 3) milk containhng 7.5% raw egg and biotin (1 mg/kg), 4) milk contain, 7.5% spraydried whole egg powder, in a 57/d feeding trial. Data were analyzed in a completely randomized design (CRD). The results showed that there were no significant differences between treatments on body weight (BW), average daily gains (ADG), dry mater (DM) intakes and feed conversion ratio (FCR) of calves. Digestibility of dry matter in control and milk containing 7.5% raw egg and biotin increased significantly. The concentration of cholesterol, triglycerides, high density lipoprotein (HDL), low density lipoprotein (LDL) and very low density lipoprotein (VLDL) were not significant difference versus treatment control. The Concentration of blood ferritin significantly increased by egg powder. There were no significant differences between treatments on IgG and total protein of blood calves. Results of experiment showed that feeding of calves with milk contain 7.5% egg, without negative effets on performance and blood parameters of calves.