NES8006 Quantitative Assessment: Analysis of Milk Yield in Cattle

This report analyzes milk production performance in dairy cattle, focusing on the relationship between various factors and milk yield. The study uses data from 30 cows across three breeds (Friesian, Ayrshire, and Shorthorn), recording parity, milk yield, butterfat content, and health history. The analysis employs statistical tests like chi-square, Kruskal-Wallis, paired t-tests, and two-way ANOVA to assess associations between metritis and mastitis, differences in parity among breeds, changes in yield before and after treatment, and the impact of breed and production system on milk yield. The results indicate no significant association between metritis and mastitis, no significant differences in parity among breeds, a significant difference in milk yield before and after treatment, and significant effects of both breed and system on actual milk yield. The report also checks for normality and homogeneity of variance to validate the statistical tests.