(a) Describe the etiology, pathogenesis, symptoms, diagnosis and control of lumpy skin disease in cattle. (20 marks)
(b) Write the indications, anaesthetic regimen, surgical procedure and post-operative care of rumenotomy in buffaloes. (20 marks)
(c)

Question

(a) Describe the etiology, pathogenesis, symptoms, diagnosis and control of lumpy skin disease in cattle. (20 marks)
(b) Write the indications, anaesthetic regimen, surgical procedure and post-operative care of rumenotomy in buffaloes. (20 marks)
(c) Describe the collection and despatch of materials for disease diagnosis in poultry. (10 marks)

UPSC Answer Check · Accepted Answer

The directive 'describe' requires systematic, detailed exposition of each component across all three sub-parts. Allocate approximately 40% of time/words to part (a) LSD given its 20 marks and multi-component demand (etiology through control); 40% to part (b) rumenotomy given equal marks and technical surgical detail required; and 20% to part (c) poultry sample handling. Structure with clear sub-headings for each part, and within part (a) use sub-sub-headings for the five required elements. No formal conclusion is needed, but a brief integrative note on disease control-surgery-diagnostic linkage adds value.
- Part (a): LSD etiology (Capripoxvirus, LSDV strain), transmission vectors (blood-feeding insects), pathogenesis (vasculitis → skin nodules), clinical signs (fever, characteristic nodules on skin/mucous membranes, mastitis, lameness), diagnosis (PCR, virus isolation, serology), and control (vaccination with LSDV-based vaccines, vector control, movement restrictions, India's LSD outbreak response since 2019
- Part (b): Rumenotomy indications (hardware disease/traumatic reticuloperitonitis, rumen foreign body, bloat relief, rumen biopsy), anaesthetic regimen (xylazine-ketamine or detomidine-butorphanol in buffaloes, local infiltration at incision site), surgical procedure (left paralumbar fossa approach, rumen incision technique, suture patterns), and post-operative care (antibiotics, analgesics, rumen transfaunation, gradual refeeding)
- Part (c): Poultry sample collection—post-mortem (fresh carcasses, chilled not frozen), blood (wing vein, cardiac puncture), swabs (choanal, cloacal), tissues (liver, spleen, kidney, brain in 10% formalin and glycerol saline), and despatch protocols (triple packaging, cold chain maintenance, IATA compliance, detailed history form with flock data, vaccination status, mortality pattern)
- Cross-linkage between parts: mention that LSD diagnosis informs control programs like India's vaccination campaigns; rumenotomy outcomes depend on pre-operative diagnosis; poultry sample quality determines diagnostic accuracy for diseases like Newcastle disease or avian influenza
- Species-specific adaptations: buffalo rumenotomy considerations (thicker abdominal wall, different rumen anatomy compared to cattle); Indian context for LSD (first reported 2019, spread to 15+ states, economic impact on dairy sector)
- Diagnostic specificity: differentiate LSD from pseudo-lumpy skin disease (bovine herpesvirus), insect bite hypersensitivity, and dermatophilosis; mention differential diagnoses for rumenotomy indications

Dimension	Weight	Max marks	Excellent	Average	Poor
Demand-directive understanding	20%	10	Demonstrates precise understanding that 'describe' requires comprehensive, systematic exposition without critical evaluation; for (a) covers all five mandated components (etiology, pathogenesis, symptoms, diagnosis, control) with equal attention; for (b) addresses all four surgical phases; for (c) includes both collection AND despatch as explicitly demanded	Covers most components but with uneven depth—may overemphasize symptoms in (a) while skimping on pathogenesis, or describe surgical procedure well but omit post-operative care in (b); treats 'describe' superficially as mere listing	Misinterprets directive as 'discuss' or 'evaluate', adding unnecessary critique; misses mandated components entirely (e.g., omits control measures in LSD or despatch protocols in poultry); confuses 'describe' with 'define' giving only brief definitions
Content depth & accuracy	20%	10	Provides accurate, current scientific detail: LSDV genome (G-protein), interferon-gamma role in pathogenesis, specific PCR targets; buffalo-specific anaesthetic doses (xylazine 0.05-0.1 mg/kg IM); double-layer rumen closure (Cushing or Lembert); poultry sample preservatives (10% formalin for histopathology, glycerol saline for bacterial isolation); cites Indian conditions	Generally accurate but with gaps or outdated information; mentions virus isolation for LSD without specifying cell lines (OA or BHK-21); describes rumenotomy procedure generically without buffalo-specific modifications; lists sample types without preservative specifications	Significant factual errors—confuses LSD with pseudo-lumpy skin disease, attributes bacterial cause; describes rumenotomy on right side; suggests freezing poultry samples for virus isolation; demonstrates dangerous knowledge gaps for veterinary practice
Structure & flow	20%	10	Clear tripartite structure with labeled sections (a), (b), (c); within (a), explicit sub-headings for each of five components; logical progression from etiology→pathogenesis→clinical→diagnosis→control; surgical narrative in (b) follows chronological order (pre-op→induction→surgery→post-op); (c) separates collection from despatch clearly	Basic structure present but inconsistent—may run (a) components together without clear breaks; surgical description in (b) jumps between phases; (c) mixes collection and despatch; adequate paragraphing but suboptimal signposting	Disorganized, rambling response with no clear part demarcation; information scattered randomly; no paragraph breaks; impossible to identify which content addresses which sub-part; appears written without planning
Examples / case-law / data	20%	10	Integrates relevant Indian examples: LSD first detected in Odisha 2019, spread pattern, vaccination with LSDV-based vaccines (not sheep pox); buffalo rumenotomy prevalence in Indian conditions (high fiber diet, foreign body ingestion); poultry disease outbreaks (H5N1, H9N2) and ICAR-NIHSAD diagnostic protocols; mentions GOI disease reporting mechanisms	Generic or limited examples—mentions 'recent LSD outbreaks' without Indian specificity; cites 'common in India' for hardware disease without data; poultry examples limited to Newcastle disease without outbreak references; examples present but not well-integrated	No examples or irrelevant ones—uses African or European LSD data without Indian context; describes cattle rumenotomy assuming buffalo identical; no mention of Indian regulatory framework (Biological Diversity Act, Prevention of Cruelty Act relevance); completely decontextualized response
Conclusion & analytical edge	20%	10	Brief but effective synthesis: notes integration of diagnosis-surgery-control in comprehensive animal health management; for (a) emphasizes One Health approach to LSD (vector ecology, wildlife reservoirs); for (b) comments on minimally invasive alternatives (rumenoscopy, magnet therapy); for (c) stresses quality assurance in diagnostic chain; demonstrates veterinary professional perspective	Weak or mechanical conclusion—merely summarizes what was described; no analytical linkage between parts; restates importance without adding insight; may omit conclusion entirely	No conclusion, or completely irrelevant closing; introduces new unsubstantiated claims at end; or writes lengthy conclusion wasting space without adding value; demonstrates failure to understand descriptive question requirements

(a) Describe the etiology, pathogenesis, symptoms, diagnosis and control of lumpy skin disease in cattle. (20 marks) (b) Write…

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