@article {10.3844/ajavsp.2025.159.170, article_type = {journal}, title = {Economic Feasibility and Growth Performance of Holstein Friesian Calves Fed Whey-Dangke Fortified Green Calf Starter}, author = {Ramadan, Zyahrul and Utamy, Renny Fatmyah and Hasbi, Hasbi and Ako, Ambo and Maruddin, Fatma and Niode, Viterah and Rahmadi, Alif and Putri, Indarwati Bua}, volume = {20}, number = {2}, year = {2025}, month = {Jul}, pages = {159-170}, doi = {10.3844/ajavsp.2025.159.170}, url = {https://thescipub.com/abstract/ajavsp.2025.159.170}, abstract = {This research evaluated the impact of feeding green calf starter fortified with whey-dangke on Holstein Friesian dairy calves' economic feasibility, growth performance, and health parameters. Experimental diets were applied to 18 Holstein Friesian dairy calves using a randomized complete factorial design with two factors: type of calf starter and level fortification of whey-dangke. The results showed that calves fed different types of calf starter, the level of whey-dangke fortification, and the interaction between the two factors had no significant effect (p>0.05) on physiological, hematological, and blood biochemical. However, the alanine aminotransferase (ALT) parameter had an interaction; the ALT values in the green calf starter treatment fortified with 5% whey-dangke exhibited a highly significant difference (p}, journal = {American Journal of Animal and Veterinary Sciences}, publisher = {Science Publications} }