Topics: Animal Refresher, Poultry Science

Optimum Temperature and Moisture During Incubation Days 1–18

Optimum temperature & moisture during 1–18 days of incubation are respectively:

37.5°C & 60% R.H.
37.2°C & 70% R.H.
45°C & 90% R.H.
35°C & 80% R.H.

Optimum Temperature and Moisture During Incubation Days 1–18

Optimum temperature & moisture during 1–18 days of incubation are respectively:

Options

37.5°C & 60% R.H. ✓
37.2°C & 70% R.H.
45°C & 90% R.H.
35°C & 80% R.H.

Correct Answer: A

Explanation in English

Correct Answer: 37.5°C & 60% R.H.

During the first 18 days of incubation in the setter:

Temperature: 37.5°C (99.5°F)
Relative Humidity: 60% R.H.

Incubation Conditions: Setter vs Hatcher

Phase	Days	Temperature	Humidity
Setter	1–18 days	37.5°C (99.5°F)	60% R.H.
Hatcher	19–21 days	37.2°C (99°F)	70% R.H.

Higher humidity in the hatcher helps soften the egg membrane, making it easier for the chick to pip and hatch. Maximum weight loss during incubation is 12.6% of the original egg weight.

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This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.

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