Topics: Animal Production Analytical Techniques, Experimental Error, Sampling Techniques, Systematic Error, random error, Accuracy, Precision, Calculating Experimental Error, sampling techniques, Representative Sampling, Probability Sampling, Random Number Sampling, sample frame, Systematic Random Sampling, Stratified Sampling, Experimental Design, Randomisation, Completely Randomised Designs, Randomised Complete Block Design, Factorial Design, Split Block Design, Nested Design, statistics, Descriptive Statistics, Inferential Statistics, Data Collection, data Presentation, Central Tendencies, Arithmetic Means, median, Correlation, Scatter Graph, Correlation Coefficient, Spearman’s Rank Correlation Coefficient, Regression Analysis, Classical Probability, probability theory, Probability Laws, Hypothesis Testing, Chi-Square Distribution, Proximate Analysis, Qualitative Analysis