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ICAR JRF Dairy Engineering 29 Jun 2024Shift 1
MCQ (Single Correct) +4 −1
Lactometer reading is used to determine
  • Determination of Solids-Not-Fat (SNF) via Lactometer Reading:
  • Analytical Role:
  • Corrected Lactometer Reading (CLR) measures specific gravity. Combined with Gerber fat percentage, it calculates % SNF (Solids-Not-Fat) using Richmond's equation:
$$\%\text{SNF} = \frac{\text{CLR}}{4} + 0.25 \times \text{Fat} + 0.36$$
  • Vital rapid platform test for detecting illegal watering down or skimming of market milk supplies.
  • Conclusion: SNF % in milk (Option 2).

Correct option: (2) SNF % in milk

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