Animal Husbandry & Veterinary Science 2023 Paper II 50 marks Discuss
Paper II — Q6
(a) What are the main epidemiological principles of animal disease control? (20 marks) (b) Discuss the sanitation requirements of…
(a) What are the main epidemiological principles of animal disease control? (20 marks) (b) Discuss the sanitation requirements of clean and safe milk production. (15 marks) (c) Enlist the different by-products of Indian dairy industry. Describe the broad principles of their utilization. (15 marks)
हिंदी में प्रश्न पढ़ें
(a) पशु रोग नियंत्रण हेतु महामारी-विज्ञान के मुख्य सिद्धांत क्या हैं? (20 अंक) (b) स्वच्छ व सुरक्षित दुग्ध उत्पादन हेतु सफाई (सैनिटेशन) की आवश्यकताओं पर चर्चा कीजिए। (15 अंक) (c) भारतीय डेयरी उद्योग के विभिन्न उपोत्पादों को सूचीबद्ध कीजिए। उनके उपयोगों के व्यापक सिद्धांतों का वर्णन कीजिए। (15 अंक)
Directive word: Discuss
This question asks you to discuss. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.
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How this answer will be evaluated
Approach
The directive 'discuss' requires balanced exposition with critical analysis across all three sub-parts. Allocate approximately 40% of word budget to part (a) given its 20 marks, and roughly 30% each to parts (b) and (c). Structure with a brief composite introduction, three clearly demarcated sections for each sub-part, and a synthesizing conclusion linking disease control, milk safety, and dairy economics to One Health and food security frameworks.
Key points expected
- Part (a): Epidemiological principles including herd immunity threshold, reproductive number (R0), transmission dynamics (direct/indirect/vector-borne), surveillance systems (passive vs active), and control strategies (test-and-slaughter, vaccination, quarantine, zoning)
- Part (a): Application to Indian context—FMD-CP (Foot and Mouth Disease Control Programme), PPR eradication roadmap, and role of ICAR-NIVEDI in disease forecasting
- Part (b): Pre-milking sanitation (udder preparation, teat dipping), milking equipment hygiene (CIP systems, ATP bioluminescence), personnel hygiene, barn environment management, and cold chain maintenance
- Part (b): Regulatory framework—FSSAI standards for milk (FSS Regulation 2011), BIS specifications, and microbial quality indicators (SPC, coliform count, somatic cell count)
- Part (c): Major by-products—skim milk, whey, buttermilk, ghee residue, casein, lactose, and their quantitative significance in Indian dairy processing
- Part (c): Utilization principles—nutraceutical extraction (whey proteins), industrial fermentation substrates, animal feed incorporation, and value-added product development for economic sustainability
- Integration point: Link between disease-free herds (a), quality milk output (b), and by-product viability (c) through the concept of total quality management in dairying
- Contemporary relevance: Precision livestock farming tools, blockchain traceability in milk supply chains, and NDDB's role in by-product utilization through cooperative dairy networks
Evaluation rubric
| Dimension | Weight | Max marks | Excellent | Average | Poor |
|---|---|---|---|---|---|
| Demand-directive understanding | 20% | 10 | For (a), explains epidemiological principles with cause-effect reasoning; for (b), discusses sanitation as systemic intervention rather than checklist; for (c), treats 'enlist' as brief listing while expanding 'describe' with process explanation—overall demonstrates that 'discuss' demands analysis, not mere description | Addresses all three parts but treats (a) as list of principles, (b) as hygiene rules, and (c) as inventory without clear distinction between listing and describing directives; some directive confusion evident | Misinterprets 'discuss' as 'list' throughout; fails to distinguish between 'enlist' and 'describe' in part (c); omits analytical component entirely or addresses only one sub-part comprehensively |
| Content depth & accuracy | 20% | 10 | Precise epidemiological terminology (herd immunity threshold, case fatality rate, attack rate); accurate FSSAI limits for milk quality; correct identification of whey processing technologies; no factual errors in disease control protocols or dairy chemistry | Generally correct information but imprecise terminology (e.g., 'immunity' without 'herd' qualifier); approximate rather than exact regulatory standards; minor errors in by-product processing descriptions | Confuses epidemiological concepts (e.g., confuses morbidity with mortality); incorrect milk quality parameters; significant errors in by-product identification or utilization methods; outdated or invented programme names |
| Structure & flow | 20% | 10 | Clear tripartite structure with explicit sub-headings; logical progression from disease prevention → production hygiene → economic utilization; smooth transitions between parts via thematic connectors (One Health, food security); proportional length reflecting mark allocation | All three parts present but uneven development; some organizational markers but weak transitions; disproportionate attention (e.g., excessive detail on by-products, skimpy disease principles); readable but mechanical structure | No clear demarcation between parts; rambling or repetitive content; severe imbalance (e.g., 70% on one part); missing sub-part(s); disorganized presentation preventing examiner from locating required content |
| Examples / case-law / data | 20% | 10 | For (a): cites Brucellosis control in Punjab or FMD vaccination coverage data; for (b): references Operation Flood's impact on milk quality, specific dairy plant audits; for (c): names Amul's whey protein extraction, NDDB's by-product utilization figures; uses current FSSAI/BAHS statistics | Some Indian examples present but generic (e.g., 'Amul' without specificity); limited quantitative data; occasional outdated references; examples illustrate rather than substantiate arguments | No Indian examples; purely theoretical treatment; invented or irrelevant case references; no data or regulatory citations; examples from human medicine inappropriately transferred to veterinary context |
| Conclusion & analytical edge | 20% | 10 | Synthesizes three domains through One Health framework; identifies emerging challenges (AMR in dairy, climate impact on disease vectors, circular economy in by-product utilization); proposes policy integration (linking NADCP with dairy development); forward-looking yet grounded | Brief summary of three parts without true synthesis; generic concluding statement on dairy importance; no identification of tensions or future directions; safe but uninspired closure | No conclusion or abrupt ending; mere repetition of points made; contradictory final statements; conclusion addressing only one sub-part; entirely descriptive closing without analytical elevation |
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