CHSE Odisha Vocational Dairying (DAI) study materials
CHSE Odisha Vocational Dairying (DAI) study resources

CHSE Odisha Vocational Dairying (DAI) study plan

CHSE Odisha Vocational Dairying (DAI) · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Dairy Farm Management and Animal Husbandry Practices

  • List and describe the key components of a dairy farm layout, including housing, feeding, and waste management areas.

  • Explain the nutritional requirements of dairy cattle at different physiological stages (calf, heifer, lactating, dry).

  • Identify common breeds of dairy cattle and their characteristics relevant to milk production.

  • Outline routine animal husbandry practices such as dehorning, hoof trimming, and vaccination schedules.

  • Calculate feed rations for a lactating cow using locally available feed resources.

Your checkpoint

Create a one-page farm layout diagram with labels and a feed ration calculation for a 400 kg cow producing 15 liters of milk per day.

Week 2

Milk Production, Lactation and Milking Hygiene & Milk Composition, Quality and Adulteration Testing

  • Describe the anatomy and physiology of the mammary gland and the milk ejection reflex.

  • Explain the steps of clean milking, including udder preparation, milking technique, and post-milking teat dipping.

  • List the major constituents of milk (water, fat, protein, lactose, minerals) and their typical ranges.

  • Perform and interpret common adulteration tests for milk (starch, sugar, water, detergent) using standard methods.

  • Differentiate between clean and raw milk quality parameters such as somatic cell count and MBRT.

Your checkpoint

Prepare a flowchart of hygienic milking procedures and a table of adulterants with their detection tests and expected results.

Week 3

Milk Processing and Preservation (Chilling, Pasteurisation, Storage)

  • Explain the principles of chilling, pasteurization (LTLT, HTST, UHT), and sterilization of milk.

  • Describe the steps involved in the pasteurization process and the equipment used (plate heat exchanger, holding tubes).

  • Identify critical control points in milk processing to prevent post-pasteurization contamination.

  • Compare the shelf life and storage conditions of pasteurized, UHT, and sterilized milk.

  • Calculate the thermal death time for a given organism at a specific temperature.

Your checkpoint

Draw a process flow diagram for HTST pasteurization and write a brief explanation of each step, including temperatures and times.

Week 4

Dairy Products Manufacture (Butter, Ghee, Curd, Paneer, Cheese, Milk Powder)

  • Describe the manufacturing process for butter and ghee, including cream separation, churning, and clarification.

  • Explain the production of fermented dairy products (curd/yogurt) and the role of starter cultures.

  • Outline the steps for making paneer and cheese, including coagulation, whey separation, and pressing.

  • Describe the process of milk powder production (spray drying, roller drying) and factors affecting powder quality.

  • Identify common defects in dairy products and their causes (e.g., rancidity, bitterness, wheying off).

Your checkpoint

Create a comparative chart of the production processes for butter, ghee, curd, paneer, cheese, and milk powder, highlighting key parameters (temperature, time, culture, packaging).

Week 5

Dairy Microbiology, Hygiene and Sanitation & Dairy Equipment, Utilities and Plant Maintenance

  • Explain the sources of microbial contamination in milk and dairy products and their control measures.

  • Describe cleaning and sanitation procedures for dairy equipment, including CIP (clean-in-place) systems.

  • Identify common dairy equipment such as pasteurizers, homogenizers, cream separators, and their maintenance needs.

  • Outline preventive maintenance schedules for critical dairy plant equipment.

  • Explain the importance of water quality and steam purity in dairy processing.

Your checkpoint

Develop a sanitation checklist for a small dairy plant, covering equipment, personnel, and environment, and a maintenance log template for a pasteurizer.

Week 6

Entrepreneurship, Marketing and Cooperative Dairy Organisation & Occupational Safety, Animal Welfare and Environmental Aspects

  • Describe the structure and functions of dairy cooperatives, including the Anand pattern.

  • Explain marketing strategies for dairy products, including branding, pricing, and distribution channels.

  • Identify occupational hazards in dairy farming and processing and their mitigation.

  • Outline animal welfare principles and their application in dairy operations.

  • Describe environmental management practices for waste (manure, wastewater) in dairy farms and plants.

Your checkpoint

Write a business plan outline for a small dairy enterprise, including cooperative membership, marketing mix, and safety and environmental compliance measures.

Week 7

Practical Skills, Laboratory Work and Project Assessment

  • Perform laboratory tests for milk quality: fat, SNF, acidity, and specific gravity.

  • Conduct a platform test for raw milk reception (e.g., COB test, alcohol test).

  • Demonstrate the correct use of a lactometer and butyrometer for fat determination.

  • Prepare a project report on a dairy-related topic, including methodology and findings.

  • Evaluate the results of laboratory tests and interpret them for quality grading.

Your checkpoint

Complete a laboratory record book with results and interpretations of at least five quality tests on milk samples, and submit a project report outline.

Week 8

Dairy Farm Management and Animal Husbandry Practices & Milk Production, Lactation and Milking Hygiene & Milk Composition, Quality and Adulteration Testing & Milk Processing and Preservation (Chilling, Pasteurisation, Storage) & Dairy Products Manufacture (Butter, Ghee, Curd, Paneer, Cheese, Milk Powder) & Dairy Microbiology, Hygiene and Sanitation & Dairy Equipment, Utilities and Plant Maintenance & Entrepreneurship, Marketing and Cooperative Dairy Organisation & Occupational Safety, Animal Welfare and Environmental Aspects & Practical Skills, Laboratory Work and Project Assessment

  • Review all domains using self-assessment quizzes and identify weak areas.

  • Revise key concepts and processes using summary sheets and flashcards.

  • Practice answering exam-style questions under timed conditions.

  • Clarify doubts with instructors or peers through discussion.

  • Finalize the project report and prepare for viva voce.

Your checkpoint

Complete a full-length mock exam with a score of at least 70% and a finalized project report ready for submission.

Milestones

Week 2: Score at least 80% on a self-made quiz covering domains 1, 2, and 3.

Week 4: Successfully explain the production process of at least three dairy products without referring to notes.

Week 6: Submit the business plan outline and sanitation checklist for peer review.

Week 8: Achieve a passing score on the mock exam and submit the completed project report.