Paper I — Q7
(a) Describe the procedure for calculating the economics of milk production in commercial dairy farm having five hundred (500)…
(a) Describe the procedure for calculating the economics of milk production in commercial dairy farm having five hundred (500) cross-bred cows. (20 marks) (b) What is precision dairy farming? Discuss the role of artificial intelligence in livestock farming. (5+10 marks) (c) What are sex linked genes? How their mode of inheritance differ from the autosomes? (5+10 marks)
हिंदी में प्रश्न पढ़ें
(a) पांच सौ संकर गायों वाले व्यावसायिक डेयरी प्रक्षेत्र में दुग्ध उत्पादन की अर्थशास्त्रीय गणना करने की विधि का वर्णन कीजिये । (20 अंक) (b) यथार्थ (सटीक) डेयरी फार्मिंग क्या है ? पशुधन उत्पादन में कृत्रिम बुद्धिमत्ता की भूमिका को व्याख्या कीजिये । (5+10 अंक) (c) लिंग सहलग्नी संबद्ध जीन्स क्या होते हैं ? इनकी वंशागति की विधि अलिंगसूत्र (ऑटोसोम्स) से किस प्रकार भिन्न है ? (5+10 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 primary directive is 'describe' for part (a), which carries the highest marks (20). Allocate approximately 45% of time/words to part (a) covering cost-benefit analysis, fixed and variable costs, and economic indicators for a 500-cow commercial farm; 25% each to parts (b) and (c). Structure: brief integrated introduction → systematic treatment of each sub-part with clear headings → synthesis conclusion linking economics, technology, and genetics for sustainable dairy development.
Key points expected
- Part (a): Complete procedure for calculating milk production economics including fixed costs (cattle depreciation, building, equipment), variable costs (feed, labour, veterinary, breeding, utilities), and output valuation; calculation of cost per litre, net income per cow, and benefit-cost ratio for 500 cross-bred cows
- Part (a): Application of specific economic indicators: cost of milk production (CMP), return over feed cost (ROFC), economic feed efficiency, and break-even analysis with Indian context (e.g., NDDB or state dairy federation norms)
- Part (b): Definition of precision dairy farming (PDF) as technology-driven individual animal monitoring for health, reproduction, and production optimization
- Part (b): AI applications in livestock: machine learning for disease prediction, computer vision for lameness detection, robotic milking systems, predictive analytics for estrus detection, and smart feeding systems with Indian examples (e.g., NDDB's e-Gopala, startup innovations)
- Part (c): Definition of sex-linked genes (genes located on sex chromosomes, primarily X-linked in mammals) with examples like milk protein genes or genetic disorders
- Part (c): Clear distinction between sex-linked and autosomal inheritance: criss-cross inheritance in X-linked traits, hemizygosity in males, dosage compensation (X-inactivation), versus Mendelian ratios in autosomes; relevance to dairy breeding (sexed semen, genetic selection)
Evaluation rubric
| Dimension | Weight | Max marks | Excellent | Average | Poor |
|---|---|---|---|---|---|
| Demand-directive understanding | 20% | 10 | Correctly interprets 'describe' for (a) as requiring systematic procedural exposition with formulae and steps; 'discuss' for (b) as balanced treatment of definition plus AI role with critical evaluation; and 'what/how' for (c) as definitional clarity plus mechanistic comparison of inheritance patterns | Addresses all sub-parts but misinterprets at least one directive—e.g., treats 'describe' as mere listing without procedural flow, or 'discuss' as one-sided description without evaluation | Fundamental directive confusion—e.g., evaluates instead of describes, or defines without comparing; significant imbalance in part weighting ignoring the 20:15:15 mark distribution |
| Content depth & accuracy | 20% | 10 | For (a): accurate formulae for gross cost, net cost, cost per kg milk, B:C ratio with correct cost categorization; for (b): technically sound coverage of IoT sensors, data analytics, ML algorithms; for (c): precise genetic terminology (hemizygosity, pseudoautosomal region, Lyon hypothesis) with correct inheritance ratios | Generally correct content with minor errors—e.g., incomplete cost components in (a), generic AI description without livestock specificity in (b), or confused X-Y linkage in (c) | Major technical inaccuracies—wrong formulae, confused precision farming with conventional automation, fundamental errors in genetic inheritance patterns; significant content gaps in highest-mark section |
| Structure & flow | 20% | 10 | Clear tripartite structure with visible headings; within (a) logical flow from cost identification → calculation methodology → economic interpretation; seamless transitions between technology (b) and genetics (c) showing interdisciplinary integration; effective use of tables/formulae for economic calculations | All parts present but internal organization weak—e.g., costs and benefits intermixed in (a), AI applications listed without thematic grouping, genetic comparison presented as disjointed points rather than systematic contrast | Poor or absent paragraphing; no clear part demarcation; rambling narrative without logical progression; failure to prioritize (a) despite highest marks; missing introduction or conclusion |
| Examples / case-law / data | 20% | 10 | For (a): realistic cost data from Indian commercial dairy context (e.g., NDDB estimates, state-specific feed costs, cross-bred cow productivity benchmarks 8-12 litres/day); for (b): specific Indian implementations—e.g., Stellapps, Mooofarm, e-Gopala app, automated milking in large cooperatives; for (c): concrete genetic examples (Bovine Leukocyte Adhesion Deficiency as autosomal recessive, X-linked disorders if any) | Some relevant examples but lacking specificity—e.g., generic 'western farms' for precision dairy, no Indian cost data, standard textbook genetic examples without species relevance | No examples or irrelevant ones; entirely theoretical treatment; failure to contextualize to 500-cow commercial scale in (a); no mention of Indian dairy sector developments |
| Conclusion & analytical edge | 20% | 10 | Synthesizes all three parts into coherent vision: how economic optimization (a) enables investment in precision technology (b) which leverages genetic advances (c) for competitive Indian dairy sector; critical reflection on challenges—digital divide, smallholder exclusion, ethical AI use; forward-looking policy recommendation | Brief summary restating main points without true synthesis; generic concluding statement on 'importance of dairy'; no critical perspective or interlinkage between sub-parts | Missing conclusion or abrupt ending; no attempt to integrate economics-technology-genetics nexus; purely descriptive closure without analytical value addition |
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