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Hartanto R, Ranggadikha AV, Prayitno E, Prasetiyono BW, Mukodiningsih S, Harjanti DW. Effect of calf starter substitution in lactating dairy cow concentrate on feed efficiency and feed cost of weaned female Holstein Friesian calves. JAVR [Internet]. 2025 Nov. 29 [cited 2026 Nov. 6];15(6):787-9. Available from: https://advetresearch.com/index.php/AVR/article/view/2389