Akademik Veri Yönetim Sistemi
Journal of Dairy, Veterinary & Animal Research, cilt.12, sa.2, ss.86-90, 2023 (Hakemli Dergi)
This study was aimed to compare two different milk replacers (MR 22-18 (protein-fat),
and MR 21-17 (Protein fat, LACALF)) instead of whole milk on calf growth performance,
blood parameters, and economy. 42 Holstein calves born between November 2021 and
May 2022 on an intensive dairy farm in the Mediterranean area were employed for this
purpose. The calves were distributed in the control (whole milk), milk replacer 22-18, and
milk replacer 21-17 groups, with the mean of gender and birth weights being similar for
each group. The calves were kept together with their mothers for the first 3 days after birth
to ensure that they received sufficient colostrum under similar farm conditions. Beginning
from the second week, the calves were given free alfalfa hay and calf starter feed. After
the calves consumed the liquid feed, their buckets were kept filled with water throughout
the day and they were provided with free clean water. Body weight, feed consumption,
body measurements, and blood samples were taken from each group of calves twice at the
beginning and end of the trial. The results showed that MR 21-17 resulted similar in calf
performance with whole milk, but MR 22-18 had lower growth performance compared to
milk and MR 21-17 as MR 22-18 was contained higher fat and protein than MR 21-17. MR
21-17 has also lower feeding cost compared to whole milk and MR 22-18. The performance
results revealed that milk replacer ingredient quality is main issues for effective calf growth