Paper II — Q2
(a) Describe the etiology, clinical signs, postmortem lesions and control of hemorrhagic septicemia in buffaloes. (20 marks) (b)…
(a) Describe the etiology, clinical signs, postmortem lesions and control of hemorrhagic septicemia in buffaloes. (20 marks) (b) Describe various methods and procedures for in vitro staining with reference to histological examination. (15 marks) (c) Explain the pharmacology and clinical use of atropine in animals. (15 marks)
हिंदी में प्रश्न पढ़ें
(a) भैंसों में रक्तस्रावी पूतिजीववृत्ता के रोग कारण, नैदानिक लक्षण, मरणोत्तर घावों तथा नियंत्रण का वर्णन कीजिए। (20 अंक) (b) उतकीय (हिस्टोलॉजिकल) परीक्षण के संदर्भ में अंतः पात्र रंजन (रंगाई) की विभिन्न विधियों तथा प्रक्रियाओं का वर्णन कीजिए। (15 अंक) (c) पशुओं में एट्रोपिन के भेषजगुण-विज्ञान तथा चिकित्सीय उपयोग की व्याख्या कीजिए। (15 अंक)
Directive word: Describe
This question asks you to describe. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.
See our UPSC directive words guide for a full breakdown of how to respond to each command word.
How this answer will be evaluated
Approach
The directive 'describe' requires systematic, detailed exposition of facts, processes and characteristics across all three sub-parts. Allocate approximately 40% of time/words to part (a) given its 20 marks, and 30% each to parts (b) and (c). Structure with clear sub-headings for each part, using bullet points for clinical signs, staining procedures and pharmacological effects. Begin with a brief introduction acknowledging hemorrhagic septicemia as a priority disease under India's National Animal Disease Control Programme, then proceed sequentially through (a), (b) and (c), ensuring no overlap in content between parts.
Key points expected
- Part (a): Etiology of hemorrhagic septicemia — Pasteurella multocida serotypes B:2 and E:2, environmental stressors; clinical signs including high fever, submandibular edema, respiratory distress; postmortem lesions of serosal hemorrhages, septicemic changes; control through vaccination (Pasteurella multocida bacterin), antibiotic therapy, and management practices
- Part (b): In vitro staining methods — routine H&E staining procedure, special stains (Giemsa for blood parasites, Gram staining for bacteria, Ziehl-Neelsen for acid-fast bacilli), PAS for carbohydrates, Masson's trichrome for connective tissue; principles of fixation, dehydration, clearing and mounting
- Part (c): Atropine pharmacology — competitive antagonism at muscarinic receptors, effects on heart rate, secretions, smooth muscle and eye; clinical uses in organophosphate/carbamate toxicity, pre-anesthetic medication, bradycardia, and ophthalmic examination; species-specific considerations and contraindications
- Integration of Indian context: mention of HS outbreaks in Indian buffaloes, ICAR-developed vaccines, and atropine use in Indian veterinary practice
- Accurate scientific terminology throughout — serotypes, staining reagents, pharmacological mechanisms, and dosage ranges where relevant
Evaluation rubric
| Dimension | Weight | Max marks | Excellent | Average | Poor |
|---|---|---|---|---|---|
| Demand-directive understanding | 20% | 10 | Demonstrates precise understanding that 'describe' requires comprehensive factual exposition without critical analysis; for (a) covers all four demanded elements (etiology, signs, lesions, control); for (b) explains both methods AND procedures; for (c) addresses both pharmacology AND clinical use, not just listing effects | Addresses most demanded elements but misses some components (e.g., omits control measures in (a) or procedures in (b)); shows confusion between 'describe' and 'explain' by attempting analysis where none required | Fundamental misunderstanding of directive — provides narrative or opinion instead of systematic description; misses multiple demanded elements or conflates sub-parts |
| Content depth & accuracy | 25% | 12.5 | For (a): specifies P. multocida serotypes B:2 and E:2, describes pathognomonic 'bottle jaw' edema, serosal petechiae, and distinguishes control through vaccination vs. treatment; for (b): details complete H&E protocol with timing, and names 4+ special stains with specific applications; for (c): explains competitive antagonism mechanism, lists 3+ clinical applications with rationale, mentions species differences (ruminants vs. horses) | Correct general content but lacks specificity — mentions P. multocida without serotypes, describes basic staining without reagent concentrations or timing, lists atropine effects without mechanism or species considerations | Significant factual errors — wrong causative organism, confused staining methods, or dangerous pharmacological misinformation (e.g., atropine contraindications ignored) |
| Structure & flow | 20% | 10 | Clear tripartite structure with labeled sub-headings (a), (b), (c); within each part, logical progression (e.g., etiology → signs → lesions → control in (a)); smooth transitions between parts without repetition; appropriate weighting reflecting marks distribution | Basic structure present but uneven — may lack clear sub-headings, have imbalanced sections (too much on (b), too little on (a)), or some repetition between etiology and lesions | Disorganized or stream-of-consciousness writing; no discernible structure; parts (a), (b), (c) not clearly demarcated; severe imbalance (e.g., 80% on one part) |
| Examples / case-law / data | 20% | 10 | For (a): cites Indian HS outbreaks (e.g., Uttar Pradesh, Bihar endemic areas), mentions Indian vaccine strains (P. multocida P52 for cattle/buffaloes); for (b): references specific ICAR/IVRI standard protocols or WHO staining guidelines; for (c): provides species-specific dosage examples or Indian field application in OP poisoning cases | Generic examples without Indian specificity — mentions 'endemic areas' without naming, 'standard protocols' without source, or clinical use without concrete cases | No examples, data or institutional references; entirely theoretical treatment; incorrect or fabricated examples |
| Conclusion & analytical edge | 15% | 7.5 | Brief synthesizing conclusion (2-3 lines) linking the three parts through theme of diagnostic-therapeutic integration in veterinary practice; for (a) notes emerging antibiotic resistance in P. multocida; for (b) mentions automation in histopathology; for (c) acknowledges atropine limitations — demonstrates awareness of evolving field without violating 'describe' directive | Mechanical summary of each part without synthesis; or no conclusion at all; attempts critical analysis inappropriate to directive | No conclusion; or lengthy critical evaluation that contradicts 'describe' requirement; conclusion introduces new, unsupported claims |
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