Formulation And Preparation Of Animal Feeds
Overview
A poultry farmer in Ogbomoso can buy a bag of finished broiler feed, or she can buy maize and groundnut cake separately and mix her own. The second option is far cheaper, but only if she gets the mixture right. Too little protein and her birds grow slowly; too much and she has wasted money on an ingredient she did not need. Feed formulation is the skill that answers the question precisely: how much of each ingredient, in what proportion, to hit a target nutrient level.
In this lesson you will learn the factors every formulator weighs before choosing ingredients, then master the Pearson square method, the simple diagonal-subtraction technique WAEC expects you to use for a two-ingredient ration. You will work through several fully calculated examples, then move from the recipe to the mixing shed: the methods and equipment used to turn a formulated ration into feed an animal can actually eat.
Objectives
- Define feed formulation
- State the factors considered when formulating a ration
- Compute a simple balanced ration using the Pearson square method
- Explain the methods of feed preparation
- State the equipment used in feed preparation
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Formulation And Preparation Of Animal Feeds. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which of the following is NOT normally considered when formulating a livestock ration? A. Nutrient requirement of the animal B. Cost of ingredients C. Colour of the farmer's shirt D. Availability of ingredients Answer: C
- Two ingredients containing 10% and 40% crude protein are mixed, using the Pearson square, to obtain a ration with 20% crude protein. How many parts of the 40% ingredient are required? A. 10 B. 20 C. 30 D. 40 Answer: A
- Which equipment is used to reduce feed ingredients to a uniform particle size before mixing? A. Weighing scale B. Pelleting machine C. Grinder or hammer mill D. Mixer Answer: C
- The main reason feed is pelleted rather than fed as a loose mash is to: A. Increase its moisture content B. Reduce selective feeding and feed wastage C. Reduce its crude protein content D. Remove the need to weigh ingredients Answer: B
- Maize (9% crude protein) and groundnut cake (45% crude protein) are blended using the Pearson square to give a 20% crude protein ration. What is the total number of parts in the mixture? A. 25 B. 11 C. 36 D. 45 Answer: C
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Past Questions
Wondering what past questions for this topic looks like? Here are a number of questions about Formulation And Preparation Of Animal Feeds from previous years
Question 1 Report
(a) Explain the term malnutrition in farm animals.
(b) Distinguish between maintenance ration and production ration.
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