ANS 403 — Animal Products, Processing, Handling and Marketing: Lecture Note

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This is the complete lecture note for ANS 403 Animal Products, Processing, Handling and Marketing. 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.

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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 403 Course title: Animal Products, Processing, Handling and Marketing Course credit load: 2 Units Series 1: Pre-Slaughter Handling and Humane Slaughter Practices Part 2.1 Pre-Slaughter Handling of Farm Animals • 2.1.1 Classes of farm animals and behavioural considerations • 2.1.2 Stress factors affecting animals before slaughter • 2.1.3 Handling techniques to minimise injury and stress Part 2.2 Preparation for Slaughter • 2.2.1 Fasting and water provision • 2.2.2 Transport and lairage management • 2.2.3 Ante-mortem inspection procedures Part 2.3 Humane Slaughter Methods • 2.3.1 Principles of humane slaughter • 2.3.2 Stunning techniques and equipment • 2.3.3 Slaughtering methods across species Part 2.4 Ethical and Regulatory Considerations • 2.4.1 Animal welfare standards and legislation • 2.4.2 Cultural and religious perspectives on slaughter • 2.4.3 Record keeping and compliance requirements Introduction Background: Before animals are slaughtered for food, the way they are handled has a direct impact on both their welfare and the quality of the products obtained. Poor handling can cause stress, injuries, and contamination, while proper pre-slaughter practices ensure humane treatment and safe, high-quality meat. This Series will guide you through the essential steps that prepare animals for slaughter in a manner that is both ethical and scientifically sound.

LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Series Aim: The aim of this Series is to equip you with the knowledge and skills required to handle animals correctly before slaughter and to apply humane slaughter methods that meet welfare standards and regulatory requirements. Series Synopsis: We shall commence this Series by examining how different classes of farm animals are handled before slaughter, with attention to stress factors and safe techniques. Next, we will explore the preparation required for slaughter, including fasting, transport, lairage, and ante-mortem inspection. Following that, we will study humane slaughter methods, focusing on stunning techniques and species-specific practices. Finally, we will wrap up by considering ethical and regulatory issues, including welfare standards, cultural perspectives, and compliance requirements. Series Learning Outcomes Upon completing this Series, you should be able to: • SLO 2.1 define the behavioural characteristics of different classes of farm animals before slaughter, • SLO 2.2 explain the stress factors that affect animals during pre-slaughter handling, • SLO 2.3 demonstrate appropriate techniques for handling animals to minimise injury and stress, • SLO 2.4 describe the procedures involved in fasting, transport, lairage, and ante-mortem inspection, • SLO 2.5 analyse the principles of humane slaughter and evaluate different stunning methods, • SLO 2.6 explain species-specific slaughtering methods and their welfare implications, • SLO 2.7 evaluate ethical, cultural, and regulatory considerations in pre-slaughter handling and humane slaughter. 2.1 Pre-Slaughter Handling of Farm Animals 2.1.1 Classes of farm animals and behavioural considerations Farm animals can be grouped into different classes such as cattle, sheep, goats, pigs, and poultry. A class refers to a category of animals distinguished by species and production purpose. Each class exhibits unique behavioural characteristics, which are patterns of response to stimuli such as handling, noise, or unfamiliar

LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS environments. For example, cattle are herd animals that feel safer when kept together, while pigs are more sensitive to noise and sudden movements. Recognising these behaviours is essential to reduce stress and ensure safety during handling. Animals that are stressed before slaughter may produce meat of poor quality, often referred to as dark, firm, and dry (DFD) meat, which results from depleted glycogen reserves in muscle. Therefore, handlers must adapt their techniques to suit the behavioural tendencies of each class of animal. Fill in the blank: Animals that are stressed before slaughter may produce ______ meat, which is dark, firm, and dry. Figure 2.1 Behavioural characteristics of different classes of farm animals. 2.1.2 Stress factors affecting animals before slaughter Stress factors are conditions that cause physical or psychological strain on animals. Common stress factors include overcrowding, rough handling, loud noises, extreme temperatures, and long transportation. Stress leads to physiological

LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS changes such as increased heart rate and depletion of muscle glycogen, which negatively affect meat quality. Handlers must identify and minimise these stressors. For instance, animals should not be mixed with unfamiliar groups, as this may lead to fighting. Proper ventilation and calm movement are also critical. Fill in the blank: One major stress factor that reduces meat quality is the depletion of ______ in muscle. Plate 2.1 Proper transport conditions to minimize stress in animals. 2.1.3 Handling techniques to minimise injury and stress Handling techniques refer to the methods used to move, restrain, or control animals safely. Good handling involves patience, calmness, and the use of appropriate equipment. For example, animals should be guided using races and chutes rather than being dragged or beaten. The use of electric prods should be minimised, as they cause pain and stress.

LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Handlers should also avoid shouting or sudden movements, since animals are sensitive to sound and visual cues. Proper training of personnel is vital to ensure humane treatment. Fill in the blank: Animals should be guided using races and ______ rather than being dragged or beaten. Box 2.1 Recommended handling practices for farm animals before slaughter. Area Recommended Practice Why It's Important Movement and Speed Move animals calmly and quietly. Use natural herding instincts, avoiding yelling or sudden movements. Use flags, paddles, or plastic rattles instead of electric prods (which should be avoided or used minimally). Reduces fear and stress, preventing injury and sudden drops in muscle glycogen reserves. Facility Design Use races and chutes for guidance. Ensure handling facilities have solid sides, non-slip floors, and gentle, curving paths. Animals naturally move toward light and tend to circle. Good design minimizes distractions and balking (stopping). Group Management Avoid overcrowding and mixing unfamiliar groups. Handle small, consistent groups (group integrity). Mixing unfamiliar animals triggers fighting and aggression, causing injury and severe stress. Overcrowding leads to heat stress and suffocation. Holding Environment Provide adequate ventilation during holding. Ensure holding pens are clean, have access to water (unless fasting), and offer protection from extreme weather. Prevents heat stress, which is particularly critical for pigs and poultry, and maintains a stable environment to keep animals calm.

LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Area Recommended Practice Why It's Important Personnel Train handlers in humane techniques. Handlers should understand animal behavior (e.g., flight zones and point of balance) to move animals effectively and humanely. Competent personnel ensure consistent, low-stress handling and minimize the risk of animal abuse or injury. Pilot questions 2.1 1. Which behavioural characteristic makes cattle safer when kept together? 2. What type of meat results from stress before slaughter? 3. Name two common stress factors affecting animals before slaughter. 4. What equipment should be used to guide animals instead of dragging them? 5. Why should shouting be avoided when handling animals? 2.2 Preparation for Slaughter 2.2.1 Fasting and water provision Before slaughter, animals are usually subjected to fasting, which means withholding feed for a certain period. This practice reduces the volume of gut contents, making evisceration safer and more hygienic. However, water should always be provided, as dehydration can cause stress and negatively affect meat quality. The fasting period varies by species, but it should be long enough to empty the digestive tract without causing undue suffering. Fill in the blank: Fasting reduces the volume of ______ contents, making evisceration safer and more hygienic.

LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Figure 2.2 Effects of fasting on gut contents before slaughter 2.2.2 Transport and lairage management Transport refers to the movement of animals from farms to abattoirs. Poor transport conditions, such as overcrowding, rough driving, or inadequate ventilation, can cause stress and injuries. Animals should be loaded calmly, with ramps at gentle slopes, and vehicles must be well-ventilated. Lairage is the holding area where animals rest before slaughter. It allows them to recover from transport stress. Proper lairage management includes providing water, adequate space, and calm surroundings. Animals should not be kept in lairage for too long, as this may lead to fatigue. Fill in the blank: The holding area where animals rest before slaughter is called ______.

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