Analysis of the relationship between udder characteristics and milk production in dairy cows

Abstract

This study aims to investigated the relationship between udder characteristics such as udder width, udder height, udder depth, and milk production in dairy cows. The research was conducted of 100 heads of Crossbreed Friesian Holstein (CFH) lactation period owned by various small-scale farmers in KAN Jabung, Malang Regency. Data analysis ware using regression analysis and correlation. The study showed that the average udder width of dairy cows was ±12 cm, udder height was ±19 cm, udder depth was ±21 cm, and milk production was ±15 liters/day. linear regression analysis the relationship between udder width and milk production, the equation obtained was Y_a = 1.50 + 1.11X_a with a correlation of 0.50. The relationship between udder height and milk production showed Y_b = 14.59 + 0.01X_b  with a correlation of 0.0063. The relationship between udder depth and milk production resulted in the equation Y_c = 20.66 - 0.27X_c with a correlation of 0.16. This study showed a moderately positive correlation between udder width and milk production, whereas the relationships between udder height, udder depth, and milk production are very low. However, it is important to consider other factors such as genetics, feed management, health conditions, and production phase.