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Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Animal Science · 200 Level
This is the complete lecture note for ANS 402 Feed Production Technology and Entrepreneurship., prepared for Animal Science students at 200 Level. You can read it online below, open it in the full viewer, or download the PDF for offline study. It pairs with the course's video lectures, so you can read and watch together.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Course code: ANS 402 Course title: Feed Production Technology and Entrepreneurship Course credit load: 2 Units Series 1: Feed Formulation And Processing Operations In Livestock Production • Part 1.1: Principles Of Feed Formulation • Sub-Part 1.1.1: Introduction to feed formulation • Sub-Part 1.1.2: Nutritional requirements of different classes of livestock • Sub-Part 1.1.3: Selection and balancing of feed ingredients • Part 1.2: Processing Of Feeding Stuffs • Sub-Part 1.2.1: Particle size reduction and bulk density • Sub-Part 1.2.2: Processing of grains and oilseeds • Sub-Part 1.2.3: Processing of roughages and additives • Part 1.3: Feed Mixing And Manufacturing Operations • Sub-Part 1.3.1: Principles of feed mixing • Sub-Part 1.3.2: Large-scale feed manufacturing processes • Sub-Part 1.3.3: Enhancements through drying, toasting, pelleting, and coating • Part 1.4: Practical Feed Preparation And Special Products • Sub-Part 1.4.1: Preparation of urea molasses and mineral blocks • Sub-Part 1.4.2: Use of premixes in diet development • Sub-Part 1.4.3: Exposure to practical feed preparation techniques
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Introduction Feed formulation and processing are at the heart of modern livestock production. Farmers and researchers alike recognise that the quality of feed directly influences animal health, productivity, and profitability. Without well-balanced diets and efficient processing methods, livestock enterprises struggle to achieve sustainable outcomes. This Series therefore provides you with the foundation to understand how feeds are formulated and processed, preparing you for practical applications in feed production technology. The aim of this Series is to equip you with the knowledge and skills needed to formulate feeds for different classes of livestock, process various feeding stuffs, and apply manufacturing operations that enhance feed quality and efficiency. We shall commence this Series by examining the principles of feed formulation, including nutritional requirements and ingredient balancing. Next, we will move on to the processing of feeding stuffs, focusing on grains, oilseeds, and roughages. Following that, we will continue with feed mixing and manufacturing operations, highlighting processes such as drying, pelleting, and coating. Finally, we will wrap up with practical feed preparation and special products, including urea molasses blocks, mineral blocks, and premixes, ensuring you gain exposure to real-world applications. Series Learning Outcomes Upon completing this Series, you should be able to: • SLO 1.1 define the principles of feed formulation and explain their importance in livestock production, • SLO 1.2 identify the nutritional requirements of different classes of livestock, • SLO 1.3 demonstrate how to select and balance feed ingredients for ration formulation, • SLO 1.4 describe the processes involved in particle size reduction and bulk density adjustment, • SLO 1.5 explain the methods used in processing grains and oilseeds for feed production, • SLO 1.6 apply techniques for processing roughages and incorporating feed additives, • SLO 1.7 analyse the principles of feed mixing and their role in ensuring uniformity of diets, • SLO 1.8 outline the steps in large-scale feed manufacturing operations, • SLO 1.9 evaluate enhancements in feed quality through drying, toasting, pelleting, and coating, • SLO 1.10 demonstrate practical preparation of urea molasses and mineral blocks, • SLO 1.11 explain the role of premixes in diet development, and • SLO 1.12 apply practical feed preparation techniques to produce specialised feed products.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS 1.1 Principles Of Feed Formulation 1.1.1 Introduction to feed formulation Feed formulation is the process of combining different feed ingredients in specific proportions to meet the nutritional requirements of livestock. It ensures that animals receive balanced diets that promote growth, reproduction, and productivity. A well-formulated feed takes into account the type of livestock, their age, physiological state, and production goals. Fill in the blank: Feed formulation is the process of combining different feed ingredients in specific ______ to meet livestock nutritional needs. Figure 1.1: Relationship between feed formulation and livestock performance 1.1.2 Nutritional requirements of different classes of livestock Nutritional requirements refer to the specific amounts of nutrients such as proteins, carbohydrates, fats, vitamins, and minerals that animals need for survival, growth, and production. These requirements vary across classes of livestock. For example, poultry require high protein levels for rapid growth, while dairy cattle need balanced energy and protein for milk production. Understanding these differences is essential for effective feed formulation. Fill in the blank: Nutritional requirements vary across classes of livestock, for example, poultry require high ______ levels for rapid growth.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Class of livestock Key nutritional requirement Poultry High protein for growth Dairy cattle Balanced energy and protein Sheep and goats Fibre for rumen function Table 1.1: Examples of nutritional requirements for different classes of livestock 1.1.3 Selection and balancing of feed ingredients Feed ingredients are the raw materials used in feed formulation, such as grains, oilseeds, roughages, and additives. The process of balancing involves combining these ingredients in proportions that meet the nutritional requirements without excess or deficiency. For instance, maize may provide energy, while soybean meal supplies protein. Balancing ensures that the diet is cost-effective and nutritionally adequate. Fill in the blank: Balancing feed ingredients ensures that the diet is ______ and nutritionally adequate. Feed Ingredient Primary Contribution Significance in Livestock Diets Maize Energy source Provides carbohydrates for growth and maintenance Soybean Meal Protein source Supplies essential amino acids for muscle development Wheat Bran Fibre and energy Improves digestion and adds bulk to the diet Fish Meal High-quality protein Rich in essential amino acids and omega-3 fatty acids Mineral Premix Vitamins and minerals Ensures balanced nutrition and prevents deficiencies Box 1.1: Common feed ingredients and their primary contributions Pilot questions 1.1 1. What is feed formulation? 2. State one factor that influences feed formulation. 3. Give one example of a nutritional requirement for poultry. 4. What is meant by balancing feed ingredients? 5. Mention one common feed ingredient and its primary contribution. 1.2 Processing Of Feeding Stuffs 1.2.1 Particle size reduction and bulk density Particle size reduction refers to the process of grinding or crushing feed ingredients into smaller particles to improve digestibility and mixing efficiency. Smaller particle sizes increase the surface area available for digestive enzymes, which enhances nutrient absorption. Bulk density is the weight of feed per unit volume, and it influences storage, handling, and feed intake. A feed
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS with appropriate bulk density ensures animals consume the right amount of nutrients without wastage. Fill in the blank: Particle size reduction improves digestibility by increasing the ______ area available for enzymes. Figure 1.2: Effect of particle size reduction on nutrient absorption 1.2.2 Processing of grains and oilseeds Grains such as maize, wheat, and sorghum are primary energy sources in livestock diets. They may be processed through grinding, flaking, or popping to improve digestibility. Oilseeds like soybean and groundnut provide protein and fat, but often require heat treatment to deactivate anti-nutritional factors. Proper processing of grains and oilseeds ensures maximum nutrient availability and safe inclusion in feed formulations. Fill in the blank: Oilseeds often require ______ treatment to deactivate anti-nutritional factors. Ingredient Processing method Purpose Maize Grinding, flaking Improve digestibility Wheat Popping, extrusion Enhance palatability Soybean Heat treatment Remove anti-nutritional factors Groundnut Roasting Improve flavour and safety Table 1.2: Common processing methods for grains and oilseeds
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS 1.2.3 Processing of roughages and additives Roughages are fibrous feed materials such as hay, straw, and silage, which are essential for ruminants. Processing roughages may involve chopping, grinding, or chemical treatment to improve digestibility and intake. Feed additives are substances added to feeds to enhance quality, such as vitamins, minerals, flavour enhancers, or preservatives. Together, processed roughages and additives ensure balanced diets and improved livestock performance. Fill in the blank: Roughages such as hay and silage are essential for ______ animals. Feed Additive Function Significance in Livestock Diets Vitamins Support metabolic processes Essential for growth, reproduction, and immunity Minerals Strengthen bones and improve immunity Prevents deficiencies and supports overall health Flavour Enhancers Increase feed palatability Encourages feed intake, improving productivity Preservatives Prolong shelf life of feeds Maintains feed quality and prevents spoilage Box 1.2: Examples of feed additives and their functions Pilot questions 1.2 1. What is particle size reduction? 2. Define bulk density in the context of livestock feed. 3. State one processing method used for maize. 4. Why do oilseeds require heat treatment? 5. Mention one example of a feed additive and its function. 1.3 Feed Mixing And Manufacturing Operations 1.3.1 Principles of feed mixing Feed mixing is the process of combining different feed ingredients to achieve a uniform distribution of nutrients throughout the diet. Proper mixing ensures that each portion of feed consumed by livestock contains the same balance of nutrients. Inadequate mixing can lead to nutrient imbalances, reduced performance, and health problems. The efficiency of mixing depends on the type of
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