MP Board · Class 9 · Science · Improvement in Food ResourcesA dairy farm maintains 8 cows. Each cow requires 20 kg of roughage (green fodder) and 5 kg of concentrate feed mix daily for optimal health and milk production. \nCalculate: (a) The total daily requirement of roughage and concentrate feed for the entire herd of 8 cows. (b) The total weight of feed (roughage + concentrate) required to feed the herd for a standard week of 7 days.
Step-by-Step Solution
Solution:
Given:
- Number of cows = $8$
- Daily roughage per cow = $20\text{ kg}$
- Daily concentrate per cow = $5\text{ kg}$
(a) Calculation of daily requirement for the herd:
- Total daily roughage requirement = $8 \times 20\text{ kg} = 160\text{ kg}$
- Total daily concentrate requirement = $8 \times 5\text{ kg} = 40\text{ kg}$
(b) Calculation of total feed required for 7 days:
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Total feed consumed by 8 cows in 1 day = Daily roughage + Daily concentrate $$\text{Total daily feed} = 160\text{ kg} + 40\text{ kg} = 200\text{ kg}$$
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Total feed required for 7 days = $200\text{ kg/day} \times 7\text{ days} = 1,400\text{ kg}$
Final Answer:
- (a) Daily roughage requirement is 160 kg and daily concentrate requirement is 40 kg.
- (b) Total feed required for 7 days is 1,400 kg.
💡 Study Guide: This question tests core syllabus concepts from Improvement in Food Resources. For formulas, key summaries, and mock exam reference guides, read the full Improvement in Food Resources Revision Notes.