https://www.selleckchem.com/ALK.html
00 and 25.99 months of age. Heifers that calved in autumn had the highest MY1, whereas calving in summer was related to the lowest milk production (p less then 0.001). The risk of culling within 50 days in milk in first lactation (n = 21,225) increased along with first calving age, e.g. heifers that first calved after 30 months of age were 5.52-times more likely to be culled compared to heifers that calved before 22 months of age (p less then 0.001). Calving difficulty was related to higher culling risk in early lactation (p less then 0.001). Heifer
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